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Life and Physical<br />

Sciences Workshop<br />

<strong>PROGRAM</strong><br />

March 3 to 5, 2008<br />

Life and Physical Sciences<br />

Directorate<br />

Space Science


TABLE OF CONTENTS<br />

1 INTRODUCTION....................................................................................................................5<br />

2 MAP OF THE CONFERENCE CENTRE OF THE CSA....................................................... 6<br />

3 AGENDA................................................................................................................................. 7<br />

3.1 DAY ONE: SCIENTIFIC RESULTS (March 3, 2008).......................................................................7<br />

3.2 DAY TWO: TECHNOLOGY DEVELOPMENT (March 4, 2008)....................................................9<br />

3.3 DAY THREE: SCIENCE AND TECHNOLOGY (March 5, 2008) .................................................11<br />

4 SCIENTIFIC ABSTRACTS FOR ORAL PRESENTATION IN SPACE PHYSICAL<br />

SCIENCES .................................................................................................................................... 12<br />

4.1 Solidification and Dissolution under Microgravity and Applied Magnetic Fields ............................12<br />

4.2 Nonlinear Optical Properties of Schiff Base-Containing Conductive Polymer Films<br />

Electrodeposited in Microgravity ..................................................................................................................13<br />

4.3 Phase Field Modeling of Rapid Solidification...................................................................................13<br />

4.4 Genèse planétaire : expériences et simulations..................................................................................14<br />

4.5 Control of Surface Tension-Driven Convection During Evaporation of Water ................................14<br />

4.6 Solute Diffusion in Non-Ionic Liquids – Effects of Gravity .............................................................15<br />

4.7 Effect of small vibrations on the behaviour of a solid particle contained in a fluid cell under<br />

microgravity ..................................................................................................................................................15<br />

4.8 Effects of Buoyancy and Pressure on Diffusion Flame Dynamics and Structure..............................16<br />

4.9 Flame Propagation and Quenching in Iron Dust Clouds ...................................................................17<br />

4.10 The role of microgravity on X-ray diffractive properties of protein crystals.....................................17<br />

5 SCIENTIFIC ABSTRACTS FOR ORAL PRESENTATION IN SPACE LIFE SCIENCES 19<br />

5.1 Visual perception of smooth and perturbed self-motion....................................................................19<br />

5.2 Muscle fat accumulation in space flight analogue.............................................................................19<br />

5.3 Bodies In the Space Environment (BISE). Relative contributions of internal and external cues to<br />

self-orientation, during and after zero gravity exposure................................................................................20<br />

5.4 Cardiovascular responses to long-duration missions to the International Space Station...................20<br />

5.5 Development/characterization of novel hardware for use in space to use cells cultured in 3D to<br />

study the interaction between host immunity and tumour growth.................................................................21<br />

5.6 Alternative Dispute Resolution (ADR) Systems Design – Conflict Resolution Concept for Extended<br />

Space Missions..............................................................................................................................................22<br />

5.7 APEX-CAMBIUM: Growing trees in microgravity.........................................................................22<br />

5.8 Biomechanics on Cellular Responses to Microgravity......................................................................23<br />

5.9 The effect of tail-suspension on energy expenditure in mice ............................................................23<br />

5.10 Effects of simulated microgravity on the swimbladder and buoyancy regulation in the zebrafish ...24<br />

6 SCIENTIFIC ABSTRACTS FOR POSTER PRESENTATION IN SPACE PHYSICAL<br />

SCIENCES .................................................................................................................................... 25<br />

6.1 Non-Equilibrium Solidification for Quantitative Microstructure Engineering of Ni And Al Alloys 25<br />

6.2 Microgravity as an environment for growth of semiconductor nanowires ........................................25<br />

6.3 Agrégation des poudres fines en gravité réduite................................................................................26<br />

6.4 Propriétés optiques d'agrégats fractals à monomères nanométriques de Si .......................................26<br />

6.5 Production d’alliages binaires par évaporation-condensation laser...................................................27<br />

6.6 Simulation non séquentielle des procédés d’agrégation en microgravité ..........................................27<br />

6.7 Preliminary Results of Thermal Diffusion Coefficients for Different Hydrocarbon Mixtures<br />

Experiment Flown on Board Foton M3 Mission...........................................................................................27<br />

6.8 The Shape of Impact Craters in Granular Media...............................................................................28<br />

6.9 Double-helical contact processes and heat exchange ........................................................................28<br />

2


6.10 Microgravity double-helical fluid containment .................................................................................29<br />

6.11 Numerical Simulation of Liquid Sloshing in Microgravity...............................................................29<br />

6.12 Modeling of thermodiffusion experiments for hydrocarbon mixtures and water-alcohol mixtures On<br />

Board FOTON M3 ........................................................................................................................................30<br />

6.13 Diffusion in Liquids ..........................................................................................................................31<br />

6.14 The effect of gravity on flame shape and radiation in laminar diffusion flames ...............................31<br />

6.15 Flame Propagation in Discrete, Heterogeneous Media......................................................................32<br />

6.16 High-density/low-cost micro-gravity protein crystallization methodology.......................................32<br />

6.17 Quantum Communication and SpaceQUEST....................................................................................33<br />

6.18 Durability Enhancement and Contamination Prevention for Functional External Materials in Space<br />

Missions .......................................................................................................................................................33<br />

6.19 Impact of Gaseous and Temperature Environmental Conditions on Thermal Parameters of Materials<br />

and Protective Structures of Satellites, Spacecraft and Landing and Re-Entry Space Vehicles....................34<br />

7 SCIENTIFIC ABSTRACTS FOR POSTER PRESENTATION IN SPACE LIFE SCIENCES<br />

............................................................................................................................................. 35<br />

7.1 Canadian experiments in European bed rest studies, WISE-2005 and ESA-2008 ............................35<br />

7.2 Canadian bed rest experiments – study of the NASA fluid loading protocol....................................35<br />

7.3 Research Activities in Radiation Exposure of Space Crew ...............................................................36<br />

8 SPACE AGENCY ABSTRACTS.......................................................................................... 37<br />

8.1 Recent Successes in NASA’s Gravity-Dependent Physical Sciences Research Program on the ISS37<br />

8.2 The ESA program in physical sciences in the framework of the ELIPS-ARISE program research<br />

including applications on the ground and in space........................................................................................37<br />

8.3 Sciences de la Matière, CNES...........................................................................................................38<br />

8.4 On-board Experimental Study of Bubble coalescences and Bubble Oscillations in the Recoverable<br />

Satellite .......................................................................................................................................................38<br />

8.5 Foton-M3: Technological and Operational Constraints in Meeting Scientific Objectives ................39<br />

9 TECHNOLOGY DEVELOPMENT ABSTRACTS FOR ORAL PRESENTATION IN<br />

SPACE PHYSICAL SCIENCES .................................................................................................. 40<br />

9.1 An Application of Hardware Development for Microgravity Research............................................40<br />

9.2 System Identification and Performance Testing of the Microgravity Vibration Isolation Subsystem<br />

(MVIS) for the European Space Agency’s Fluid Science Laboratory...........................................................40<br />

9.3 Space-DRUMS® - Facility for the ISS .............................................................................................41<br />

9.4 A Historical Review of Space Instrument Technologies Developed by Routes AstroEngineering and<br />

Used to Support L&PS Scientific Mission Objectives ..................................................................................42<br />

9.5 Canada’s Heritage and Experience with Operations and Hardware Development within the ISS<br />

Program .......................................................................................................................................................43<br />

9.6 Configurable Miniature Laboratory for Space Science and Materials Processing ............................43<br />

9.7 PCS: An Example of Collaboration between Engineers and Scientists.............................................44<br />

10 TECHNOLOGY DEVELOPMENT ABSTRACTS FOR ORAL PRESENTATIONS IN<br />

SPACE LIFE SCIENCES .............................................................................................................45<br />

10.1 Advanced Miniature IR Spectral Processor for Remote Astronaut Health Diagnostics....................45<br />

10.2 Rapid microbial DNA detection on compact disc: potential applications on spaceship....................45<br />

10.3 MOEMS-based optical micro-bench platform for the miniaturization of sensing devices for space<br />

applications....................................................................................................................................................46<br />

10.4 eOSTEO – Automated Closed Culture System for Study of Bone Cells in Microgravity ................47<br />

10.5 Micropackaging technology of microbolometer FPA enabling the miniaturization of mid-IR<br />

instruments for space exploration missions...................................................................................................47<br />

10.6 INO’s Micro-Flow Cytometer and other Optics and Photonics Technologies for Space ..................48<br />

11 TECHNOLOGY DEVELOPMENT ABSTRACTS FOR POSTER PRESENTATION IN<br />

SPACE PHYSICAL SCIENCES .................................................................................................. 49<br />

3


11.1 The Vibration Environment on Spacecraft and Development of Isolation Technology for the ISS..49<br />

11.2 An Overview of Past, Present, and Future Canadian Microgravity Vibration Isolation Mount<br />

Technology....................................................................................................................................................49<br />

11.3 Diagnostics Using a Confocal Holography Microscope for Three-Dimensional Temperature and<br />

Compositional Measurements of Fluids in Microgravity ..............................................................................50<br />

11.4 ARTEC Technologies........................................................................................................................51<br />

11.5 A New Multifunctional Space Simulator for Accelerated Ground-Based Testing of Spacecraft<br />

Materials and Structures Intended for Space Exploration Missions.................................................................51<br />

11.6 A Novel Approach for Non-Destructive Mapping of Structural and Mechanical Properties of Moon<br />

and Mars Soils...............................................................................................................................................52<br />

11.7 Extended Interaction Klystrons for Communications, Topographical Mapping and Remote Sensing<br />

Applications...................................................................................................................................................52<br />

11.8 Étude de l’influence des Perturbations Orbitales sur la Trajectoire des Satellites Défilants .............53<br />

12 WORKSHOP PARTICIPANT LIST.................................................................................. 55<br />

4


1 INTRODUCTION<br />

The Canadian Space Agency (CSA) Space Life and Physical Science (LPS) Directorate is pleased to invite<br />

Canadians to the bi-annual LPS workshop entitled "Life and Physical Sciences in Space: Scientific<br />

Advancement and Planning for Future Missions". The workshop will be held at CSA HQ in St-Hubert on<br />

March 3, 4, and 5, 2008. The main objectives of this year's workshop are to:<br />

• Encourage and foster collaboration among the key groups of participants: physical scientists, life<br />

scientists, and Canadian industry.<br />

• Present and discuss recent scientific results in space life and physical science programs; and<br />

• Present and identify key technological requirements to meet scientific objectives for future missions in<br />

both scientific disciplines.<br />

• Provide a forum for dialogue between CSA and its clients.<br />

The objectives will be met through the active participation of Canadian industry, the academic community,<br />

space agency representatives, and graduate students. In preparation for the workshop, Canadian scientists<br />

were first invited to submit abstracts requested to include the following information:<br />

• Scientific objectives<br />

• Recent scientific progress, including results from ground-based and/or reduced-gravity (near freefall)<br />

environments<br />

• Identification of key technologies or advances required for implementing scientific objectives in a<br />

future spaceflight experiment<br />

These scientific abstracts, including many others submitted by the scientific abstract deadline date, were<br />

published on the CSA workshop website. The next step was for Canadian industry and technology<br />

developers to review these scientific abstracts in order to tailor their technology abstract submissions. The<br />

technological abstracts were requested to include, as a minimum:<br />

• Past and recent technological progress<br />

• Results of technology from ground-based studies and/or reduced-gravity operational environments<br />

• Identification of scientific requirements that have been (or could be) met by the technology, as<br />

used in past, present or future spaceflight experiments<br />

In order to develop the workshop program, a review of both scientific and technology development<br />

abstracts was conducted. This resulted in the scientific program scheduled for the first day of the workshop,<br />

and the technology development program organized for the second day. An important objective of the<br />

workshop is to identify and prioritize the technology necessary to meet Canadian scientific objectives of the<br />

Life and Physical Science Programs. This will be achieved through a series of consensus-driven<br />

brainstorming sessions, resulting in a final report available to all. In preparation for these sessions, all<br />

participants are invited to review all abstracts prior to the workshop.<br />

The LPS Workshop Organizing Committee looks forward to welcoming all participants to the CSA in<br />

March.<br />

5


2 MAP OF THE CONFERENCE CENTRE OF THE CSA<br />

1<br />

2<br />

Room<br />

1+2<br />

3<br />

Room<br />

3+4+5<br />

4<br />

Coffee, pauses, buffet, posters<br />

6


3 AGENDA<br />

3.1 DAY ONE: SCIENTIFIC RESULTS (March 3, 2008)<br />

08:00-08:30 Registration and poster setup (with coffee, muffins, juice)<br />

08:30-08:40 Welcome & Opening Remarks<br />

Dr. Dave Kendall, Director General, Space Science, CSA<br />

08:40-10:10 CSA Life and Physical Science Program<br />

Mandate<br />

Funding and Implementation<br />

Space Platforms<br />

Exploration Program<br />

• Dr. Nicole Buckley, Director, Life & Physical Sciences, CSA<br />

• Dr. Perry Johnson-Green, Senior Program Scientist, Life and Physical<br />

Sciences, CSA<br />

• Dr. Alain Berinstain, Director, Planetary Exploration and Space Astronomy,<br />

CSA<br />

10:10-10:15 Introduction to Workshop Objectives<br />

Dr. Nicole Buckley, Director, Life & Physical Sciences, CSA<br />

10:15-10:30 Question Period<br />

10:30-10:45 NETWORKING BREAK<br />

Scientific Presentations (Part I)-Parallel Breakout Sessions for Life and Physical<br />

Sciences<br />

Recent Scientific Results from the Canadian LPS programs<br />

(Each presentation includes 15 min presentation - 10 min science, 5 min technology -<br />

and 5 min Q&A)<br />

10:45-10:50 Life Science- Session Chair Dr. Luchino<br />

Cohen, Program Scientist, Space Life<br />

Sciences<br />

LOCATION: Room 3+4+5<br />

10:50-11:10 Visual perception of smooth and<br />

perturbed self-motion<br />

Dr. Robert S. Allison, Centre for Vision<br />

Research, York University<br />

11:10-11:30 Muscle fat accumulation in space flight<br />

analogue<br />

Dr. Guy Trudel, Professor, Bone and<br />

Joint Laboratory, University of Ottawa<br />

11:30-11:50 Bodies In the Space Environment<br />

(BISE) Relative contributions of<br />

internal and external cues to self-<br />

Physical Science-Session Chair Dr.<br />

Marcus Dejmek, Program Scientist, Space<br />

Physical Sciences<br />

LOCATION: Room 1+2<br />

Solidification and Dissolution under<br />

Microgravity and Applied Magnetic<br />

Fields<br />

Dr. Sadik Dost, Professor and Canada<br />

Research Chair, University of Victoria<br />

Nonlinear Optical Properties of Schiff<br />

Base-Containing Conductive Polymer<br />

Films Electrodeposited in Microgravity<br />

Dr. Michael Wolf, Professor, University of<br />

British Columbia<br />

Phase Field Modeling of Rapid<br />

Solidification<br />

7


orientation, during and after zero<br />

gravity exposure<br />

Dr. Laurence Harris, Professor, Centre<br />

for Vision Research, York University<br />

11:50-12:10 Cardiovascular responses to longduration<br />

missions to the International<br />

Space Station<br />

Dr. Richard L Hughson, Professor,<br />

University of Waterloo<br />

12:10-12:30 Development/characterization of novel<br />

hardware for use in space to use cells<br />

cultured in 3D to study the interaction<br />

between host immunity and tumor<br />

growth<br />

Dr. Reginald Gorczynski, Senior Scientist,<br />

University Health Network<br />

12:30-12:50 Alternative Dispute Resolution (ADR)<br />

Systems Design – Conflict Resolution<br />

Concept for Extended Space Missions<br />

Captain Maryellen Cronin, Canadian<br />

Forces, 51 Aerospace Control and<br />

Warning Squadron<br />

Dr. Nikolas Provatas, Professor,<br />

McMaster University<br />

Genèse Planétaire: Expériences et<br />

Simulations<br />

Dr R.J. Slobodrian, Professeur, Université<br />

Laval<br />

Control of Surface Tension-Driven<br />

Convection During Evaporation of<br />

Water<br />

Dr. Charles Ward, Professor, University<br />

of Toronto<br />

Effects of Buoyancy and Pressure on<br />

Diffusion Flame Dynamics and<br />

Structure<br />

Dr. Ömer L. Gülder, Professor, University<br />

of Toronto<br />

12:50-13:50 LUNCH (own arrangements – CSA cafeteria)<br />

13:50-15:30 HIGH LEVEL POSTER SESSION (science, technology, and agency) – see<br />

Sections 8, 9, 10 and 13 for Poster Abstracts. Posters: 35" H X 76" W, attached by<br />

Velcro<br />

15:30-15:45 NETWORKING BREAK<br />

Scientific Presentations (Part II) -Parallel Breakout Sessions for Life and Physical<br />

Sciences<br />

15:45-16:05 Effects of simulated microgravity on<br />

the swimbladder and buoyancy<br />

regulation in the zebrafish<br />

Dr. F. M. Smith, Professor, Dalhousie<br />

University<br />

Flame Propagation and Quenching in<br />

Iron Dust Clouds<br />

Dr. Andrew Higgins, Professor, McGill<br />

University<br />

16:05-16:25 APEX-CAMBIUM: Growing trees in<br />

microgravity<br />

Dr. Rodney Savidge, Professor,<br />

University of New Brunswick<br />

16:25-16:45 Biomechanics on Cellular Responses to<br />

Microgravity<br />

Dr. Mian Long, Institute of Mechanics,<br />

Chinese Academy of Sciences, P. R. China<br />

(cancelled)<br />

16:45-17:05 The effect of tail-suspension on energy<br />

expenditure in mice<br />

The role of microgravity on X-ray<br />

diffractive properties of protein crystals<br />

Dr Jurgen Sygusch, Professeur, Université<br />

de Montréal<br />

Solute Diffusion in Non-Ionic Liquids –<br />

Effects of Gravity<br />

Dr. Paul J. Scott, Research Associate,<br />

Queen's University<br />

Effect of small vibrations on the<br />

behaviour of a solid particle contained<br />

in a fluid cell under microgravity<br />

8


Dr. Tooru Mizuno, Professor, University<br />

of Manitoba<br />

Dr. Masahiro Kawaji, Professor,<br />

University of Toronto<br />

17:05-17:15 Concluding Remarks<br />

17:30 Bus Departs CSA<br />

3.2 DAY TWO: TECHNOLOGY DEVELOPMENT (March 4, 2008)<br />

08:00-08:30 Registration (with coffee, muffins, juice)<br />

08:30-08:40 Welcome<br />

Guy Bujold, President, Canadian Space Agency (CSA)<br />

08:40-08:50 Introduction to the day’s objectives<br />

Dr. Nicole Buckley, Director, Life & Physical Sciences, CSA<br />

08:50-09:20 ESA's Research and Payload Technologies in the ELIPS Program<br />

Dr. Martin Zell, Head of Research Operations Department, ESA/ESTEC<br />

09:20-09:50 International Space Station: A test bed for Exploration and Science<br />

Dr. Fred Kohl, ISS Research Project Manager, NASA Glenn Research Center<br />

Dr. Jacob Cohen, Program Executive, Advanced Capabilities Division, NASA HQ,<br />

ESMD<br />

09:50-10:20 FOTON M3: Technological and Operational Constraints in Meeting Scientific<br />

Objectives<br />

Mr. Antonio Verga, Technical Officer for ESA’s payload, ESTEC<br />

10:20-10:40 NETWORKING BREAK<br />

10:40-11:25 Multidisciplinary Approach in Science<br />

Dr. David Needham, Professor, Duke University<br />

Technology Presentations (Part I): Parallel Sessions For Life And Physical<br />

Sciences<br />

11:30-11:35 Life Science- Session Chair Dr. Luchino<br />

Cohen, Program Scientist, Space Life<br />

Sciences<br />

LOCATION: Room 3+4+5<br />

11:35-11:55 INO’s Micro-Flow Cytometer and<br />

other Optics and Photonics<br />

Technologies for Space<br />

Ms. Marcia Vernon, INO<br />

Physical Science-Session Chair Dr.Marcus<br />

Dejmek, Program Scientist, Space Physical<br />

Sciences<br />

LOCATION: Room 1+2<br />

An Application of Hardware<br />

Development for Microgravity Research<br />

Mr. Stephen Churchill, C-CORE<br />

11:55-12:15 Rapid microbial DNA detection on<br />

compact disc: potential applications on<br />

spaceship<br />

Dr Eric Leblanc, Chef de projets, Centre<br />

de Recherche en Infectiologie<br />

System Identification and Performance<br />

Testing of the Microgravity Vibration<br />

Isolation Subsystem (MVIS) for the Fluid<br />

Science Laboratory<br />

Mr. Derrick Piontek, Magellan Aerospace<br />

Corporation / Bristol Aerospace Limited<br />

9


12:15-12:35 MOEMS-based optical micro-bench<br />

platform for the miniaturization of<br />

sensing devices for space applications<br />

Dr Sonia Garcia-Blanco, INO<br />

Space-DRUMS® - Facility for the ISS<br />

Dr Jacques Guigné, Guigné International<br />

12:40-13:40 LUNCH (own arrangements – CSA cafeteria)<br />

Technology Presentations (Part II): Parallel Sessions For Life And Physical<br />

Sciences<br />

13:40-14:00 eOSTEO – Automated Closed Culture<br />

System for Study of Bone Cells in<br />

Microgravity<br />

Mr. Lowell Misener, Systems<br />

Technologies<br />

14:00-14:20 Advanced Miniature IR Spectral<br />

Processor for Remote Astronaut<br />

Health Diagnostics<br />

Dr. Roman V. Kruzelecky, MPB<br />

Communications<br />

14:20-14:40 Micropackaging technology of<br />

microbolometer FPA enabling the<br />

miniaturization of mid-IR instruments<br />

for space exploration missions<br />

Dr Sonia Garcia-Blanco, INO<br />

14:40-15:00 Invited Speaker: Scientific Perspective<br />

Payload Development Experiences<br />

Mr. Ruediger Hartwich, Astrium Space<br />

Transportation<br />

A Historical Review of Space Instrument<br />

Technologies Developed by Routes<br />

AstroEngineering and Used to Support<br />

L&PS Scientific Mission Objectives<br />

Mr. Blair Gordon, Routes<br />

AstroEngineering<br />

Canada’s Heritage and Experience with<br />

Operations and Hardware Development<br />

within the ISS Program<br />

Mr. Richard Rembala, MDA<br />

Configurable Miniature Laboratory for<br />

Space Science and Materials Processing<br />

Dr. Roman V. Kruzelecky, MPB<br />

Communications<br />

Invited Speaker: Scientific Perspective<br />

PCS: An Example of Collaboration<br />

between Engineers and Scientists<br />

Dr. Arthur E. Bailey, Scitech Instruments<br />

Inc.<br />

15:00-15:15 NETWORKING BREAK<br />

15:15-18:00 Brainstorming in Parallel Sessions (In sub-disciplines)<br />

The overall objective of the brainstorming sessions is to identify the technology<br />

development required to achieve each community's scientific objectives. A series of<br />

general questions will be used to guide participants to identify, clarify, and rank<br />

technologies necessary for future spaceflight experiments.<br />

Life Science<br />

LOCATION: Room 345<br />

Physical Science<br />

LOCATION: Room 12<br />

18:00-20:00 DINER (PROVIDED BY CSA) WITH CASH BAR<br />

20:00 Bus Departs CSA<br />

10


3.3 DAY THREE: SCIENCE AND TECHNOLOGY (March 5, 2008)<br />

08:00-08:30 Registration (with coffee, muffins, juice)<br />

Space Technologies Development Program (Priority Technologies, Current<br />

Projects and AO/RFP Description)<br />

08:30-08:45 Jean Claude Piedboeuf, Head Technology Requirement and Planning, Technology<br />

Management and Applications, CSA<br />

08:45-09:00 Walter Peruzzini, Program Manager, Spacecraft Technologies, CSA<br />

09:00-10:15 Life Sciences<br />

LOCATION: Room 3+4+5<br />

(Prepare presentation for plenary)<br />

Physical Sciences<br />

LOCATION: Room 1+2<br />

(Prepare presentation for plenary)<br />

10:15-10:30 NETWORKING BREAK<br />

10:30-11:50 LPS Plenary Wrap-Up<br />

Discipline Presentations and Interdisciplinary Discussions<br />

11:50-12:00 Closing Remarks and Thank Everyone<br />

12:30 Bus departs CSA<br />

11


4 SCIENTIFIC ABSTRACTS FOR ORAL PRESENTATION IN SPACE<br />

PHYSICAL SCIENCES<br />

4.1 Solidification and Dissolution under Microgravity and Applied Magnetic Fields<br />

Sadik Dost<br />

Professor and Canada Research Chair<br />

Crystal Growth Laboratory, University of Victoria, Victoria, BC, Canada V8W 3P6<br />

E-mail: sdost@me.uvic.ca<br />

This is a combined experimental/theoretical study focusing on the growth of alloy single crystals and the<br />

associated solidification and dissolution processes under microgravity and applied magnetic fields. The<br />

solution growth techniques of Liquid Phase Diffusion (LPD) and the Travelling Heater Method (THM) are<br />

utilized. The materials of interest are the single crystals of SixGe1-x, and GaxIn1-xSb. Crystal growth<br />

experiments are also being conducted under microgravity-simulated conditions using static and rotating<br />

magnetic fields.<br />

The objective is to determine optimum growth conditions (such as translation rates, growth rates,<br />

temperature profiles with different gradients) for future microgravity experiments to be performed using the<br />

MSL-LGF insert of ESA, and the ATEN furnace when it is available.<br />

Correct values of diffusion coefficients in metallic liquids are essential for accurate crystal growth and<br />

solidification modelling studies. In this direction, we are carrying out dissolution experiments with and<br />

without the application of magnetic fields. The experimental results of silicon dissolution into germanium<br />

melt will be presented. The effect of free surface is also studied experimentally. The effect of gravity is<br />

studied by designing two dissolution systems; in one the gravitational field is in the dissolution direction<br />

and in the other in the opposite direction.<br />

Results show the significant contributions of gravity, free surface, and applied magnetic fields to the<br />

dissolution process. The results of these works were disseminated in journals:<br />

Armour, N., S. Dost, and B. Lent, “Effect of Free Surface and Gravity on Dissolution in Germanium Melt,”<br />

J.Crystal Growth, 299, 227-233, 2007.<br />

Armour, N., and S. Dost, “The Effect of a Static Magnetic Field on Buoyancy-Aided Silicon Dissolution<br />

into Germanium Melt,” J. Crystal Growth, 306(1), 200-207, 2007.<br />

and presented in conferences:<br />

Armour, N., and S. Dost, “Effect of Free Surface and Gravity on Silicon Dissolution into Germanium<br />

Melt,” CANCAM07, Toronto, Ont., June 3-7, 2007.<br />

Dost, S., N. Armour, and B. Lent, “The Effects of Gravity and an Applied Magnetic Field on the<br />

Dissolution of Silicon into Germanium Melt,” ISPS07, p. 53, Nara, Japan, November 22-26, 2007.<br />

Experiments will be supported by 3-D numerical simulations using both commercial packages (CFX and<br />

Fluent), and in-house codes based on the finite volume method. We are also utilizing the technique of<br />

Smoothed Particle Hydrodynamics (SPH) to determine the evolution of the growth interface and the solid<br />

crystal composition in the grown crystals. The use of this technique in crystal growth is new, and needs<br />

further research to improve its computational efficiency.<br />

Required technologies and platforms<br />

1. All dissolution and LPD experiments (with and without the application of an applied rotating magnetic<br />

field) can be carried out using the MSL-LGF inset of ESA. It is also possible to perform THM experiments<br />

under certain restrictions (such as temperature and its gradient).<br />

2. The above experiments can also be carried out (with no magnetic fields) using ATEN furnace when it<br />

becomes available.<br />

3. A quenching facility to solidify the samples of dissolution experiments.<br />

12


4.2 Nonlinear Optical Properties of Schiff Base-Containing Conductive Polymer Films<br />

Electrodeposited in Microgravity<br />

Agostino Pietrangelo, Bryan C. Sih, Britta N. Boden, Zhenwei Wang, Qifeng Li, Keng C. Chou, Mark J.<br />

MacLachlan, Michael O. Wolf. Department of Chemistry, University of British Columbia, 2036 Main<br />

Mall, Vancouver, British Columbia, Canada V6T 1Z1<br />

Materials with large nonlinear optical (NLO) responses are needed for new optical and photonic<br />

technologies for data transmission and processing. Molecular and polymeric materials offer possible<br />

advantages, including tuneable NLO properties and solution processability, over conventional materials.<br />

Conjugated polymers containing metals in the backbone are one class of materials being considered for<br />

new NLO technologies. Studies indicate that electrochemical processes are significantly influenced by the<br />

effect of gravity, however electropolymerization, an effective method to prepare conjugated polymers<br />

films, is essentially unexplored in microgravity. In this study, we compare the effects of pendant alkoxy<br />

chains, metals, and gravity on the third-order susceptibilities, 3) , of the electropolymerized thin films. We<br />

have designed and built a computer-controlled self-contained potentiostat with sealed cells to allow data<br />

collection on the Falcon jet. The four compartment sealed cell was developed with a software (written<br />

using Labview) and hardware package to control four sets of electrodes. Measurement of 3) demonstrates<br />

that gravity affects the electropolymerization, and some polymers prepared under microgravity have<br />

enhanced third-order NLO properties relative to those prepared at 1 g. A key objective for a future<br />

spaceflight experiment will be to prepare thicker free-standing films which cannot be grown on parabolic<br />

flights due to the short duration of microgravity under these conditions. Thicker films grown in space will<br />

allow us to use X-ray diffraction and other analytical methods to probe the local order in the films to further<br />

understand the origin of the enhanced NLO properties obtained from the parabolic flights. New hardware<br />

must be developed for the spaceflight experiments to allow fully automated growth of films without the<br />

need to reload the cells between flights. This will involve incorporating a robotic unit loaded with<br />

sufficient substrates to maximize utilization of the time spent in zero gravity. Modification of the<br />

electronics and software to accommodate thicker film growth and more substrates will also be needed.<br />

4.3 Phase Field Modeling of Rapid Solidification<br />

Sebastian Gurevich, Peter Kuchnio and Nikolas Provatas<br />

Department of Materials Science and Engineering, McMaster University<br />

Theoretical Solidification Modeling:<br />

We will explore the use of phase field methodology as an emerging technique for predictive modeling of<br />

solidification microstructure evolution in metallic alloys. We begin by introducing phase field models of<br />

solidification and novel computational/mathematical techniques necessary to simulate dendritic growth<br />

efficiently at experimentally relevant parameters. We discuss recent quantitative predictions of dendrite<br />

spacing in selection in directional solidification of binary alloys, the role of surface tension anisotropy in<br />

dendritic morphology, and non-equilibrium solute trapping effects in rapid solidification of Cu-Ni alloys.<br />

We then move on to a recent extension of the traditional phase field paradigm, coined the phase-fieldcrystal<br />

(PFC) method, which allows us to incorporate atomic-scale elasto-plasticity effects in solidification<br />

and solid state transformations. Results and remaining challenges of this new technique are discussed.<br />

Industrial Relevance:<br />

Phase field simulations on dendritic structure can play a significant role in the design of commercial alloys<br />

for industrial application. Our work focuses on three areas of casting: direct thin slab casting of steel, strip<br />

casting of aluminum alloys and the solidification of aluminum-based liquid drops. The last category in<br />

particular is industrially relevant to powder metallurgy, but also offers a unique glimpse into the<br />

solidification physics in micro-gravity conditions. Our emerging theoretical picture on grain refinement in<br />

rapidly solidified liquid drops is based on a competition between thermal and solute diffusion and<br />

anisotropy in the kinetics of atomic attachment at the interface. Testing our theory will thus require microgravity<br />

experiments, where convection is minimal and where high cooling rates can be achieved. Candidate<br />

13


alloy systems to be investigated can include but are not limited to Al-Cu drops with a chemistry in the<br />

range of


transport up to 60% of the energy required to evaporate water, with the remainder of the energy supplied by<br />

thermal conduction (Phys. Rev. E 72: 056302; 056303; 056304; 2005). Also, the Marangoni number, as<br />

defined by Pearson, provides a criterion for the onset of Marangoni convection. When the funnel is changed<br />

to a non-conducting material, we find surface tension-driven convection is eliminated, and thermal<br />

conduction supplies all of the energy required to evaporate water. Further, the Marangoni number does not<br />

provide a criterion for the initiation of surface tension-driven convection.<br />

Although buoyancy-driven convection can be eliminated during water evaporation when the water<br />

temperature is less than 4°C, to study energy transport during water evaporation at higher temperatures<br />

probably requires the near-free fall conditions of the space station. The apparatus required for that<br />

environment is presently under investigation. One of the main issues is the elimination of the vacuum<br />

pumps, used in the ground-based studies, with a condenser.<br />

4.6 Solute Diffusion in Non-Ionic Liquids – Effects of Gravity<br />

Reginald W. Smith, Paul J. Scott and Barbara Szpunar 1 , Department of Mechanical and Materials<br />

Engineering, Nicol Hall, Queen's University,<br />

Kingston,Ontario K7L 3N6<br />

(Currently with Atomic Energy of Canada Ltd, Chalk River ON K0J 1J0)<br />

In our QUELD II/MIM/MIR studies, in all the alloy systems studied, the solute diffusion coefficient (D)<br />

increased linearly with temperature (T). Our recent molecular dynamics studies have confirmed the linear<br />

variation of D with increase in T. For example, the diffusion of gold in liquid copper over the entire liquid<br />

temperature range (1400 to 3200 o K) is best represented in a linear fashion as D = D m + C(T – T m ), where<br />

D m is the value of D at the melting point T m (1357.5 K) and has the value 0.2233 x 10 -4 cm 2 /s ; C is a<br />

constant of value 8.7 x 10 -8 cm 2 /sK<br />

The objectives of our future liquid diffusion studies will be:- 1) Theoretical (a) to extend the MD<br />

simulations to cover those of the alloy systems examined in the QUELD II/MIM/MIR campaign for which<br />

appropriate interatomic potentials may be obtained; and (b) to determine the factors controlling the slope<br />

of the DversusT relationship for any given alloy. 2) Experimental (a) measure ‘D’for various solutes alone,<br />

and (b) with other solutes present, primarily in the industrial light metal solvents Al and Mg. 3) Future<br />

Space Activities Some success has been obtained by others in 1g experiments in alloy systems in which the<br />

solute distribution in the diffusion couple can provide stability to buoyancy convection. However, such 1g<br />

experiments are usually subject to convective disruptions due to radial temperature gradients. Thus, in<br />

addition to 1g studies, further space activities are desired; these would be best conducted in a microgravity<br />

isolation mount -equiped type of laboratory or a well-characterised free-flyer with low g-disturbance levels.<br />

The apparatus required would be either a QUELD II(with a pay-load astronaut) or ATEN- type(if required<br />

to be fully automated) of facility in combination with a microgravity isolation mount(MIM), for operation<br />

over a temperature range of 200 – 1000 o C, using sealed triple-containment long capillary samples,<br />

preferably having forcing motion available of square wave-form and intensity 4x10 -3 g. All specimen<br />

analysis would be done when the samples were returned to earth and the principal investigator. No special<br />

atmospheres, analysis techniques would be required on orbit.<br />

4.7 Effect of small vibrations on the behaviour of a solid particle contained in a fluid cell under<br />

microgravity<br />

Masahiro Kawaji and Samer Hassan<br />

Dept. of Chemical Engineering & Applied Chemistry<br />

University of Toronto<br />

Toronto, ON, M5S 3E5, Canada<br />

Diffusion-controlled material processing such as protein crystal growth in space can be adversely affected<br />

by small vibrations called g-jitter existing aboard space platforms such as the International Space Station, if<br />

a relative motion is induced between the particle and surrounding fluid. To better understand the vibration-<br />

15


induced phenomena, theoretical, numerical and experimental investigations have been performed into the<br />

behaviour of a small particle contained in a fluid cell under normal gravity and microgravity.<br />

When a fluid cell containing a small particle such as a protein crystal in liquid is vibrated parallel to the<br />

wall nearest to the particle, the particle oscillates with certain amplitude and a hydrodynamic force in the<br />

direction normal to the wall is induced. Theoretical models based on an inviscid fluid assumption have<br />

been used to predict the particle amplitude variation and drifting motion. Due to an external vibration such<br />

as g-jitter, the oscillating particle is predicted to drift towards the wall and the particle oscillation amplitude<br />

to decrease slightly as the distance between the particle and wall is reduced.<br />

The reduction in particle amplitude also depends on the particle-to-fluid density ratio. The particle drifting<br />

towards the nearest wall accelerates due to an increasing attraction force, and the drifting speed increases<br />

with both the vibration frequency and particle diameter. Even for small protein crystals with a density close<br />

to that of the fluid, the time required to drift from the center of the fluid cell to the wall is predicted to be<br />

much shorter than the growth time.<br />

The experimental verification of the theoretical and numerical model predictions can be achieved only by<br />

conducting experiments in microgravity. Thus, a low resource experiment on the ISS is recommended in<br />

the future. It would require a vibration apparatus such as CSA’s MIM and a small fluid cell containing a<br />

fluid and particles mounted on a platform such as that used in FLEX experiments on the Space Shuttle<br />

Discovery during an STS-85 mission. The results of this work can lead to the development of a new<br />

method to separate solid particles and gas bubbles from a liquid in space systems.<br />

4.8 Effects of Buoyancy and Pressure on Diffusion Flame Dynamics and Structure<br />

Hyun I. Joo and Ömer L. Gülder<br />

University of Toronto, Institute for Aerospace Studies<br />

4925 Dufferin Street, Toronto Ontario M3H 5T6<br />

Although most practical combustion systems are turbulent and operated at high pressures to improve<br />

efficiency, studies of laminar diffusion flames are essential to understand the more complex nature of<br />

turbulent diffusion flames. One of the central problems of laminar diffusion flame stability is the<br />

mechanism that the flame stays attached near the jet exit. The conventional understanding is that at<br />

atmospheric pressure and normal gravity, the mechanism of flame attachment might be due to the presence<br />

of a small premixed flame region just above the burner rim that acts to prevent the flame from lift-off.<br />

Another proposed attachment mechanism is due to the presence of a triple flame that has a stoichiometric<br />

flame base with fuel rich and fuel lean branches on the fuel and airsides, respectively. It is stipulated that<br />

the triple flame structure and presence guarantees the stabilization in high strain rate of jet outlet of a lifted<br />

laminar diffusion flame. However, our current studies of laminar diffusions flames at elevated pressures,<br />

and limited scope microgravity flame experiments, suggest that the conventional view of flame attachment<br />

should be re-examined. Our results show that with the pressure increased to just a few bars, the blue<br />

premixed zone disappears completely and the flame appears to be directly attached to the burner rim with<br />

further increase in pressure. It is also known that buoyancy scales with pressure. Buoyancy-induced motion<br />

is significant at elevated pressures and greatly affects the flame stability, whereas in micro-gravity the<br />

effect of buoyancy is non-existent. The short-term objectives of this research are to resolve the controversy<br />

about the flame attachment mechanism in laminar diffusion flames and investigate the effect the buoyancy<br />

and pressure on the dynamics and structure. In the long term, our findings will have the potential to provide<br />

tools for efficient and reliable fire safety measures for human-crew missions in space and propulsion<br />

system design. Our current earth-based experimental findings complemented by numerical simulation<br />

efforts are expected to help us to plan a potential micro-gravity experimental program.<br />

An eventual flight experiment within the scope of this work would include measurement of the flame<br />

shape, and the structure of the temperature field and soot distribution within a laminar diffusion flame<br />

envelope under microgravity conditions. These measurements could be accomplished using a 2D CCD<br />

camera by evaluating the spatially-resolved spectral emission from the flame. Flames would be stabilized<br />

16


on a small burner of a few millimetres using low fuel flow rates such that the flame height would be about<br />

10 to 20 millimetres.<br />

4.9 Flame Propagation and Quenching in Iron Dust Clouds<br />

François-David Tang, Samuel Goroshin, Andrew Higgins and John Lee<br />

McGill University, Dept. of Mechanical Engineering<br />

Laminar flames propagating in fuel-rich suspensions of iron dust in air were studied in a reduced-gravity<br />

environment provided by a parabolic flight aircraft. Experiments were performed with four different dusts<br />

having average particle sizes in the range 3-30 microns. Uniform fuel-rich dust suspensions were created<br />

inside glass tubes and then ignited at the open end via an electrically heated wire. Quenching distances<br />

were determined as the flames propagated through assemblies of equally spaced steel plates installed in the<br />

tubes. Flame propagation speeds in the open tubes and within the quenching plates were determined from<br />

video recordings, and emission spectra recorded by a spectrometer were used to determine flame<br />

temperature. The obtained experimental results were in good agreement with the predictions of our onedimensional<br />

dust flame model with conductive heat loss. Experiments that are planned in the near future<br />

will expend to larger particle sizes, different gas mixtures and fuels. Experimentation with fuel-lean<br />

mixtures in space will require development of a novel dust dispersion technique and non-contact optical<br />

diagnostics permitting precise control of the suspension concentration and uniformity. Thus, an acoustic<br />

dispersion system and a laser attenuation probe in combination with a micro-imaging system will have to<br />

be developed to fully attain the experimental objectives.<br />

4.10 The role of microgravity on X-ray diffractive properties of protein crystals<br />

Jurgen SYGUSCH 1 and Yves TRUDEAU 2 ,<br />

Université de Montréal, CP 6128, Stn Centre ville, Montréal,<br />

QC, H3C 3J7 ; 1 Département de biochimie ; 2 ANIQ R&D Inc<br />

Protein crystallization is the main bottleneck in the determination of protein structures by diffraction<br />

techniques. Protein structures are essential to our fundamental understanding of how biological processes<br />

function and to structure assisted drug design with many applications in academic, pharmaceutical, and<br />

industrial research. Protein crystallization dictates high levels of supersaturation, which is required for<br />

nucleation but detrimental for crystal growth. Microgravity crystallization has been proposed as a solution<br />

because a stable protein depletion zone (PDZ), of reduced supersaturation that is dependant on the<br />

crystallization conditions, can form in the absence of gravity-driven convection and sedimentation. The<br />

premise that reduced supersaturation improves X-ray diffraction properties of protein crystals is the<br />

motivation for growing protein crystals in space. A priori selection of proteins for microgravity<br />

crystallization whose growth conditions are compatible with significant reduction in supersaturation at the<br />

crystal face was not made in the past. As not all protein crystallization conditions yield reduced<br />

supersaturation zones, protein crystallization experiments were flown whose growth kinetics in all<br />

likelihood would not have been sensitive to exposure to a microgravity environment.<br />

We propose to investigate PDZ formation and resultant incorporation of homologous impurities in protein<br />

crystal growth that may determine the outcome of microgravity on the X-ray diffraction properties of<br />

protein crystals. Characterization of these phenomena is intended to prioritize use of limited flight<br />

opportunities by selecting which proteins would benefit the most. To attain this goal, a ground based<br />

experimental platform has been built to characterize PDZ formation during crystal growth using<br />

Michaelson interferometry and recent results will be presented. Concomitantly, a proteomics based<br />

approach will be outlined using two-dimensional gel electrophoresis to measure homologous impurities in<br />

protein crystals and their mother liquor. The preferential inclusion or exclusion of homologous impurities<br />

by the crystal depends on the existence of a stable PDZ allowing for their depletion (favourable) or their<br />

accumulation (unfavourable), respectively, at the growing crystal face.<br />

17


Microgravity science mission(s) is proposed using the PROSPECT platform to crystallize carefully selected<br />

candidate proteins in liquid-liquid diffusion hardware. Spaceflight monitoring of crystal growth by<br />

interferometry could assess PDZ formation compared to ground controls. The missions’ objective would be<br />

to determine whether differences in gravitational environment influences X-ray diffractive properties of the<br />

crystallized proteins and to what extend.<br />

18


5 SCIENTIFIC ABSTRACTS FOR ORAL PRESENTATION IN SPACE LIFE<br />

SCIENCES<br />

5.1 Visual perception of smooth and perturbed self-motion<br />

Robert S. Allison, Jim Zacher, Centre for Vision Research,<br />

York University Stephen A. Palmisano, School of Psychology, University of Wollongong<br />

Successful adaptation to the microgravity environment of space and re-adaptation to gravity on earth<br />

requires recalibration of visual and vestibular signals. Despite decades of experimentation, motion sickness,<br />

spatial disorientation, reorientation illusions and degraded visuomotor performance continue to impact the<br />

availability and effectiveness of astronauts. We have found that incorporating jitter of the vantage point<br />

into visual displays produces more compelling illusions of self-motion (vection), despite generating greater<br />

sensory conflicts. We will discuss a series of ground-based experiments that examine a range of possible<br />

explanations for this phenomenon. Recent neuroimaging and neurophysiological data suggests that<br />

accelerating optic flow stimuli—such the jittering optic flow used in our research—may result in<br />

suppression of signals in vestibular cortex. Such visual modulation of vestibular signals is potentially<br />

important to understanding the initial response and adaptation to microgravity. Currently it is unclear what<br />

role gravity plays in the potentiation of vection with jittering optic flow. Ground and space based<br />

experiments will provide a unique opportunity to explore the jitter effect during periods of adaptation to<br />

altered gravity and to complement other research looking at vection on ISS. Our goals are to understand the<br />

role of gravity in jitter-enhanced vection, to develop the theory of how vestibular and visual signals are<br />

recalibrated in altered gravity and to study the time course of this adaptation<br />

5.2 Muscle fat accumulation in space flight analogue<br />

Guy Trudel, Bone and Joint Laboratory, University of Ottawa;<br />

Martin Lecompte, CHVO; Hans Uhthoff, Bone and Joint Laboratory, University of Ottawa.<br />

Introduction: Fat accumulation in muscle following inactivity and limb injury has been demonstrated.<br />

The contribution of altered fat tissue metabolism to muscle function in microgravity has so far received<br />

little attention<br />

Objectives: To measure the cross-sectional area and fat content of gastrosoleus and tibialis muscles in 24<br />

women bedridden for 60 days.<br />

Methods: Using magnetic resonance imaging, we scanned the gastrosoleus and tibialis anterior muscles on<br />

axial sections using T1W1 spin echo and measured the cross-sectional area and T1 signal intensity.<br />

Results: The gastrosoleus cross-sectional area decreased from baseline 3632±654mm 2 to 3082±564mm 2<br />

(15%) and 2904±584mm 2 (20%) respectively after 1month and 2 months bedrest (p


5.3 Bodies In the Space Environment (BISE). Relative contributions of internal and external cues<br />

to self-orientation, during and after zero gravity exposure<br />

L. R. Harris, R. T. Dyde, M. R. Jenkin, H. L. Jenkin and J. E. Zacher<br />

Centre for Vision Research<br />

York University, Toronto, Ontario, Canada<br />

The Bodies In the Space Environment (BISE) project’s objective is to understand how unusual gravity<br />

conditions, and in particular microgravity, affects the perception of self-orientation. Understanding how<br />

humans construct a perceptual up direction is crucial to treating subjects on earth who through age or<br />

disease are unable to correctly transduce sensory information that underlies the perception of up. It is also<br />

crucial to the development of countermeasures to microgravity related illusions such as visual reorientation<br />

illusions that have been reported on orbit. The specific objective of the BISE study is to conduct<br />

experiments during long-duration microgravity conditions to better understand how humans first adapt to<br />

microgravity and then re-adapt to normal gravity conditions upon return to earth. Our ongoing terrestrial<br />

research has developed a unique set of perceptual tests that investigate the perceived up direction and these<br />

results have lead to a weighted vector sum model of the ‘perceptual up’. We propose to utilize these tests,<br />

coupled with the standard ‘luminous line’ test from the literature, to investigate how astronauts’ perceptual<br />

up adapts from pre-flight to microgravity, and then re-adapts from prolonged microgravity to return to<br />

earth-normal conditions. This information will make it possible to provide countermeasure strategies<br />

tailored to individual astronauts.<br />

The BISE project is currently slated to place its first experimental subject on-station in spring 2009. This<br />

presentation will describe the BISE project, preparations to date in terms of the expected launch date, and<br />

the basic scientific rationale underlying the project.<br />

5.4 Cardiovascular responses to long-duration missions to the International Space Station<br />

Richard L Hughson 1 , J. Kevin Shoemaker 2 , Philippe Arbeille 3 , Andrew Blaber 4 , Danielle K. Greaves 1<br />

Universities of Waterloo 1 , Western Ontario 2 , Simon Fraser 4 , and Tours 3 (France)<br />

The project Cardiovascular and cerebrovascular Control on return from the International Space Station<br />

(CCISS) is designed to study an integrated view of blood flow control to establish the weak links that make<br />

astronauts more susceptible to fainting on return from space. To date, we have collected complete data on<br />

one astronaut with one more due to return to Earth soon. We are examining with non-invasive ultrasound<br />

the factors that regulate the ability of the veins to return blood to the heart, the contractile properties of the<br />

heart and the ability of the arteries to constrict to maintain blood pressure, as well as the ability of the blood<br />

vessels of the brain to respond appropriately so that delivery of oxygen is well maintained. In addition, we<br />

use 24-hour monitoring of the heart rate and physical activity patterns to understand the changes in heart<br />

rate control during the long-duration space flight. Data will be presented for the heart rate as we now have<br />

enough data that we can show responses without compromising astronaut confidentiality.<br />

In the near future, we will initiate a project on Cardiovascular Health Consequences of Long-Duration<br />

Space Flight (VASCULAR). This project will examine blood vessel changes after flight and will explore<br />

the possible role of blood inflammation processes in these changes. Blood samples will be returned from<br />

space and measured for a range of inflammatory markers.<br />

The technologies required for space flight experiments must be simple yet highly reliable. We will soon<br />

switch to a new generation of 24-hour heart rate monitor that provides greater resolution and potential for<br />

longer periods of data collection. Ground-based experiments are highly dependent on the non-invasive<br />

imaging technologies. Our planned space flight studies will use standard laboratory-based techniques but<br />

future studies could benefit from micro-technologies for rapid analyses in-flight.<br />

20


5.5 Development/characterization of novel hardware for use in space to use cells cultured in 3D to<br />

study the interaction between host immunity and tumour growth<br />

Reginald M. Gorczynski, Chris Adamson, Olha Kos, Lowell Misener and Dennis Sindrey<br />

University of Toronto (Toronto) and Systems Technologies Inc. (Kingston, Canada)<br />

The utilization of 3D structures for targeted biological tests has increased in popularity in many fields of<br />

research, in part at least because the 3D environment of dense cell contact more closely mimics the<br />

physiological biologic environment than does traditional 2D culture in cell monolayers. This is particularly<br />

evident when studying the interaction between biologic systems. One example of the latter is seen in the<br />

interaction between host resistance mechanism(s) (the immune system) and tumors growing in a stromal<br />

bed. Pharmaceutical companies interested in drug development research have frequently reported that<br />

promising new drugs testing positive in 2D cultures are often inactive in vivo. Research & development in<br />

2D cultures is likely inadequate to model events and mechanisms of action for in vivo (3D) effects. This<br />

can be especially critical in microgravity conditions.<br />

We propose to target the development of a new dedicated 3D bioreactor that would build upon a previously<br />

described eOSTEO hardware for reflight in space. The current eOSTEO bioreactor was designed and<br />

optimized for use with a 2D bone substrate (Osteologic) limiting the science utility to basic bone research.<br />

A basic insert was created to fit within the bioreactor that allowed for the inclusion of small 3D bone<br />

scaffolds. While not optimally configured for 3D scaffolds, the fidelity of the science on the 3D scaffolds<br />

was found by our group to be substantially improved in comparison to the 2D substrates. The science focus<br />

we have targeted for development of this hardware involves exploration of growth of tumor cells in space<br />

in 3D cultures in the presence of a viable host immune system.<br />

Data to date confirms that immune responsiveness is decreased during and following spaceflight, which<br />

may have considerable impact on surveillance against autologous tumors. The Gorczynski lab has<br />

documented that the novel ligand:counter-receptor interaction between CD200:CD200R, members of the<br />

TREM family, can modulate immunity in general, and tumor immunity in particular. Overexpression of<br />

CD200 suppresses immunity and enhances tumor growth. Independent observations by several other<br />

groups have confirmed that CD200 expression is associated with poor prognosis in human lymphoma,<br />

myeloma, leukemia, and, more recently, breast, lung and melanoma cancer cells. The Gorczynski lab<br />

described increased expression of CD200 on thymoma cells under microgravity conditions. In bone<br />

cultures, increased CD200 expression promotes osteoblastogenesis vs osteoclastogenesis, and in recently<br />

completed studies in eOSTEO, cells transfected to overexpress CD200 showed an attenuated bone loss<br />

during spaceflight. These opposing effects of CD200 in suppression of bone loss and enhanced tumor<br />

growth may be controlled by CD200 signaling to different CD200Rs. CD200:CD200R2 activates<br />

osteoclastogenesis, while CD200:CD200R1 signals suppression of anti-tumor immunity.<br />

The “proof-of-principle” science proposed for these studies is to explore whether tumor growth in a<br />

physiologic-type 3-dimensional matrix embedded with host splenocytes in vitro is attenuated by<br />

suppression of CD200 expression on tumor cells using mAbs or CD200-specific silencer (si) RNAs, or<br />

using splenocytes from CD200R1 “knock-out” mice, and conversely is enhanced using splenocytes from<br />

mice overexpressing CD200. These studies will make use of a CD200R1 KO mice and a CD200-transgenic<br />

mouse showing increased expression of CD200 when induced by doxycycline. The latter model was used<br />

in eOSTEO. Our overall goal is to identify pathways which stimulate the desired CD200 effect on<br />

osteoblastogenesis, without simultaneously blocking tumor immunity.<br />

21


5.6 Alternative Dispute Resolution (ADR) Systems Design – Conflict Resolution Concept for<br />

Extended Space Missions<br />

By Captain Maryellen Cronin, Canadian Forces, 51 Aerospace Control and Warning Squadron, 22 Wing<br />

North Bay, UND Space Studies Department, Distant Program<br />

Vadim Y. Rygalov, Ph.D., Human Factors & Environmental Design (HF & ED)<br />

UND Space Studies Department, USA<br />

Alternative Dispute Resolution (ADR) systems design was performed in late 1990/early 2000’s and<br />

concept was developed and applied within the Department of National Defence (DND) for conflict<br />

resolution using Interest-Based Communication (IBC) models. The DND ADR policy applies to all<br />

personnel, both military and civilian, and is flexible to allow for cultural differences between elements<br />

(army, navy, air force) under variable stress conditions. This methodology continues to be successfully<br />

applied for conflict resolution and effective human operations and is versatile to allow for fluctuations in<br />

operational tempo (i.e low operational tempo environments to conflict experienced under extreme stress<br />

conditions.) Future plans for space mission to Mars and beyond will present even more stressful<br />

environments for a small group of space crew and nature of stressors is expected to be, in certain aspects,<br />

different compared to what astronauts have experienced until now. Effective interpersonal relations and<br />

communication amongst space crew and between space crew and Mission Control is imperative for mission<br />

success. ADR systems design methodology could be performed in the interest of developing an<br />

appropriate conflict resolution system for extended duration space missions. There are<br />

suggested/considered potential difficulties provided by specifics of space environment for this concept<br />

development. As well, theoretical predictions will be done on the basis of experiences accumulated within<br />

DND and the Conflict Management Program (CMP).<br />

5.7 APEX-CAMBIUM: Growing trees in microgravity<br />

Rodney Savidge, PhD,<br />

Professor, Tree Physiology / Biochemistry<br />

Faculty of Forestry & Environmental Management<br />

University of New Brunswick<br />

Fredericton, NB, Canada<br />

The objective of this life sciences study is to grow willow trees in an Advanced Biological Research<br />

System (ABRS, comprising two independently controlled environmental growth chambers) on the<br />

International Space Station (ISS) in order to gain information about the role of gravity in the<br />

regulation of plant growth and development. A compact method for growing trees within root<br />

tubes was developed, and experiments to date have confirmed that 1) healthy trees can be<br />

successfully grown in ABRS at elevated CO2 under environmentally defined conditions without<br />

mortality over >5 weeks; 2) the trees undergo both primary and secondary growth; 3) in addition<br />

to normal cambial growth, gravitationally sensitive reaction wood formation can be induced at<br />

predictable locations; 4) in principle, plant tissues can be returned to earth alive, frozen or in<br />

liquid fixative for further investigation. These advances set the stage for gaining anatomical,<br />

biochemical and molecular biology insight into gravity perception within plants grown on the ISS.<br />

However, there remains a major need for an ISS-based micro-dissection / cryo-fixation (plunge-freezing)<br />

/ cryo-substitution system to enable the fine structure of living cells as they exist in microgravity to be<br />

permanently fixed before the specimens are subjected to earth gravity. In addition, there is scope<br />

for mass spectroscopy technology enabling sensitive, accurate, continual monitoring of individual<br />

concentrations of all volatile organic compounds (VOCs) within the ABRS chamber.<br />

22


5.8 Biomechanics on Cellular Responses to Microgravity<br />

Mian Long , Shujin Sun, Yuxin Gao, and Zulai Tao<br />

National Microgravity Laboratory, Institute of Mechanics,<br />

Chinese Academy of Sciences, Beijing 100080, P. R. China ( mlong@imech.ac.cn)<br />

Scientific objectives Cell growth in space is pre-requisite to understand cellular responses under<br />

microgravity. How the driven flow of culture medium in a space cell bioreactor affects biological responses<br />

of mammalian cells to microgravity, however, have been poorly understood. The goal of the current study<br />

is to understand the impact of mechanical stimuli on cellular responses using a dual approach that<br />

coordinates biological functionality, mechanical measurements, and numerical calculations, and to develop<br />

the novel assays and technologies for both ground-based measurements and space payload experiments.<br />

Research progresses Absence of gravity or microgravity influences molecular and cellular functions of<br />

bone forming osteoblasts. A novel ground-based assay was developed to quantify the effects of vectordirectional<br />

gravity on cellular responses of osteoblasts where Ros 17/2.8 or MC3T3-E1 cells were grown<br />

up on upward-, downward- and edge-on- oriented substrate, respectively. It was found that Ros 17/2.8 cells<br />

were shrunk with a reduced cell area in downward- and edge-on-orientated substrates. Cell-type specific<br />

differences in cell cycle were observed in S and G2/M phases for both types of Ros 17/2.8 or MC3T3-E1<br />

cells on the three orientated substrates. F-actin expression was reinforced, and perinuclear network of<br />

vimentin was well organized in downward-orientated substrate. These results provide a new insight into<br />

understanding how cultured osteoblasts response to vector-directional gravity.<br />

Advanced technologies Driven flow is required to provide sufficient mass transportation and nutrient<br />

supply for mammalian cells. Here a customer-made counter sheet-flow sandwich cell culture (CSSCC)<br />

device was developed upon a biomechanical concept from fish gill breathing. The sandwich culture unit<br />

consists of two side chambers where the medium flow is counter-directional, a central chamber where the<br />

cells are cultured, and two porous polycarbonate (PC) membranes between side and central chambers. Flow<br />

dynamics analysis revealed the symmetrical velocity profile and uniform low shear rate distribution of<br />

flowing medium inside the central culture chamber, which promotes sufficient mass transport and nutrient<br />

supply for mammalian cell growth. A payload measurement using CSSCC device was conducted in<br />

recoverable satellite, which validated the accessibility of the CSSCC device and provided new clues in<br />

glucose consumption of mammalian cells.<br />

5.9 The effect of tail-suspension on energy expenditure in mice<br />

Tooru M. Mizuno, Peisan Lew, Davie Wong<br />

Department of Physiology, University of Manitoba<br />

Space travelers experience an anorexia and body weight loss while in a microgravity environment.<br />

Microgravity-like situation produced by an antiorthostatic tail-suspension model causes changes in the<br />

hypothalamic activity. These observations suggest the hypothesis that microgravity-induced weight loss is<br />

due to not only reduced energy intake but also increased energy expenditure. Furthermore, the effect of<br />

microgravity on metabolic function is mediated through specific signaling pathways in the hypothalamus.<br />

To address these possibilities, the effect of microgravity on metabolic rates and hypothalamic gene<br />

expression was assessed. Male C57BL/6J mice were placed in the metabolic cage system and the tail was<br />

suspended for 3 hours to mimic the microgravity environment. Hypothalamic tissue was collected at the<br />

end of the experiment and hypothalamic gene expression was assessed by PCR array which can screen 84<br />

genes at once. Metabolic rates (oxygen consumption and carbon dioxide production) were significantly<br />

increased in tail-suspended mice compared to control mice. The PCR array analysis demonstrated that tailsuspension<br />

increased expression of several hypothalamic genes including brain derived neurotrophic factor.<br />

These data are consistent with the hypothesis that microgravity increases energy expenditure and this effect<br />

is mediated through hypothalamic signaling pathways. Obesity is a significant risk factor for several<br />

serious medical problems including diabetes and cardiovascular diseases. Because obesity has reached<br />

23


epidemic proportions in the world, there is tremendous need to better understanding of mechanisms for the<br />

regulation of energy balance. The microgravity environment may constitute a unique and valuable<br />

experimental system for the study of metabolic regulation and metabolic disorders.<br />

5.10 Effects of simulated microgravity on the swimbladder and buoyancy regulation in the<br />

zebrafish<br />

F. M. Smith 1 , B. Lindsey 1 , T. Dumbarton 2 and R. P. Croll 2 .<br />

Departments of Anatomy & Neurobiology 1 , and Physiology & Biophysics 2 ,<br />

Dalhousie University, Halifax, NS<br />

Aquatic organisms such as fishes are partially supported against the pull of gravity by a factor equal to the<br />

volume of water their bodies displace. Many fishes also use an internal gas-filled organ, the swimbladder,<br />

to actively regulate buoyancy to finely adjust their position in the water column. However, the effects of<br />

reduced gravity on the swimbladder and the consequences of such effects for survival in space, where<br />

"buoyancy" does not apply, are not understood. In the zebrafish, an extensively studied model vertebrate,<br />

we have investigated the structure, neural control, development and function of the swimbladder in animals<br />

raised at 1G (control group) and in animals exposed for 96 hr as embryos and young larvae to a net 0<br />

gravitational vector in a bioreactor (experimental group). After exposure, the experimental group was<br />

removed from the bioreactor and raised under the same conditions as the control group. Within 2-3 days<br />

posthatch, larval zebrafish in the control group swam to the surface to inflate the swimbladder, but in the<br />

experimental group this initial inflation was delayed by 24 hr. Swimbladders from experimental animals<br />

examined 2 wk or longer posthatch showed no differences in anatomy, morphology, innervation, or<br />

developmental pattern from those of the control group, nor was the behaviour of experimental animals<br />

different from that of controls. Our results suggest that, while there may be an early effect of simulated<br />

microgravity on timing of swimbladder inflation, this effect is transient and is not accompanied by<br />

permanent developmental or anatomical changes in the zebrafish swimbladder.<br />

24


6 SCIENTIFIC ABSTRACTS FOR POSTER PRESENTATION IN SPACE<br />

PHYSICAL SCIENCES<br />

6.1 Non-Equilibrium Solidification for Quantitative Microstructure Engineering of Ni And Al<br />

Alloys<br />

Hani Henein,1 Dieter M. Herlach2, Charles-André Gandin3, Asuncion Garcia-Escorial4,<br />

1University of Alberta, Edmonton, Canada<br />

2Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR)<br />

Köln, Germany, dieter.herlach@dlr.de<br />

2Institut für Festkörperphysik, Ruhr-Universität Bochum, Germany<br />

3Ecole des Mines de Paris, CEMEF UMR CNRS 7635, Sophia Antipolis, France<br />

4Dept. Metalurgia Fisica, CENIM-CSIC, Madrid, Spain<br />

Solidification is initiated by nucleation and completed by subsequent growth. In particular the growth<br />

conditions control the microstructure evolution. If the melt is undercooled prior to solidification a system of<br />

enhanced free energy is created that enables various solidification pathways into different metastable<br />

solids, termed rapid solidification. Containerless processing such as gas atomization is one of the most<br />

efficient methods to undercool metallic melts. In order to engineer the microstructure of rapidly solidified<br />

alloys some fundamental data is necessary. In the present project electromagnetic levitation is applied both<br />

under terrestrial conditions and in reduced gravity using TEMPUS-EML. The non-equilibrium<br />

solidification during recalescence and segregation during post-recalescence phase is investigated and<br />

modeled. TEMPUS-EML is equipped with Video cameras for observation of sample position and a highspeed<br />

pyrometer for contactless temperature measurements. As an option for the future, a high-speed<br />

camera system is considered for EML on board the ISS for measurements of dendrite growth velocities.<br />

Levitation experiments enable the measurement of undercooling and the corresponding dendrite growth<br />

velocity as a function of undercooling. The comparison of experimental investigations on Earth and in<br />

reduced gravity allows for the determination of the effect of forced convection to the growth dynamics. To<br />

solidify a spray of droplets a drop tube of 8m is used. A dedicated Impulse Atomization facility is<br />

employed to produce powders, which are solidifying in containerless state during free fall. Non-equilibrium<br />

effects during rapid solidification as solute trapping in alloys are investigated and analyzed within current<br />

theories of dendrite growth.<br />

6.2 Microgravity as an environment for growth of semiconductor nanowires<br />

H. Ruda et al.<br />

Centre for Advanced Nanotechnology<br />

University of Toronto<br />

Semiconductor nanostructures are increasingly being seen as a possible route that can take electronics<br />

beyond the limitations of Moore's Law, with the potential for new types of devices and phenomena. Of key<br />

importance is the ability to access regimes in which the confining dimension of the nanostructures lie<br />

within the quantum limit. We will report on a series of terrestrial experiments that were performed showing<br />

how high quality nanostructures of relatively large size were fabricated. We also report on a parabolic flight<br />

campaign where our first preliminary data indicates conditions for unprecedented thin nanostructures were<br />

achieved.<br />

The apparatus employed for the terrestrial/parabolic flights experiments consists of a Lindberg 55035<br />

furnace operating at 900 °C, with an inert carrier gas (argon) delivered at atmospheric pressure (nominal)<br />

and 40 sccm (nominal), used to grow the nanostructures on silicon substrates. Analysis of the<br />

nanostructures were done using scanning electron microscopy and transmission electron microscopy.<br />

25


6.3 Agrégation des poudres fines en gravité réduite<br />

C. Rioux, L. Potvin et R.J. Slobodrian<br />

Département de physique, de génie physique et d’optique,<br />

Université Laval, Québec (QC), Canada G1V 0A6<br />

La formation des planètes à partir d’un nuage de poussière interstellaire est encore mal comprise. Afin de<br />

jeter un peu de lumière sur ce phénomène, il nous apparaît pertinent d’en étudier la première étape c’est-àdire<br />

la formation d’agrégats à partir de poudres fines. Ces agrégats formés dans un environnement de<br />

gravité réduite sont en général de type fractal. Dans le cadre de notre étude visant à produire et à étudier les<br />

agrégats fractals, nous avons mis au point un appareil permettant l’étude de l’agrégation des poudres fines<br />

en microgravité. Cet appareil a été conçu dans nos ateliers et permet d’observer l’agrégation en<br />

microgravité. Deux lentilles différentes ont permis d’afficher respectivement, avec l’aide d’une caméra<br />

vidéo, 4 et 2 mm à plein écran. Une nouvelle version de l’appareil permet de combiner deux vues<br />

perpendiculaires en une seule image et ainsi une reconstruction de l’événement en trois dimensions est<br />

possible. De plus, une nouvelle caméra vidéo permet d’afficher 1 et 0.5 mm à plein écran. Les détails de<br />

l’appareil seront présentés ainsi que les résultats d’une étude de l’agrégation d’une poudre de carbonate de<br />

calcium en gravité réduite. Les résultats de cette étude ont mis en lumière l’importance des charges<br />

électriques lors de l’agrégation. Nous prévoyons que l’utilisation de la version améliorée de l’appareil avec<br />

d’autres matériaux permettra d’approfondir notre connaissance des processus en cause. De plus des<br />

expériences sous différentes pressions allant jusqu’au vide seront nécessaire pour compléter l’étude. Une<br />

façon de disperser des particules, dans une enceinte sous vide et en apesanteur, sera donc nécessaire et<br />

devra être mise au point.<br />

6.4 Propriétés optiques d'agrégats fractals à monomères nanométriques de Si<br />

Yvanho Romanesky, Jean-Claude Leclerc, Michel Piché, Claude Rioux et R. J. Slobodrian<br />

Département de physique, de génie physique et d’optique<br />

Université Laval<br />

À l’ère des communications, l’augmentation du rendement de couplage optoélectronique est un des défis<br />

les plus importants de la physique et de l’ingénierie contemporaine. Notre groupe se penche depuis<br />

quelques années sur l’étude de la matière fractale produite par évaporation condensation effectuée en<br />

microgravité réelle ou simulée. Il s'agit plus précisément d’agrégats à monomères sphéroïdaux ou<br />

microcristaux connectés à topologie fractale. Les propriétés physiques de cette matière diffèrent de la<br />

matière ordinaire. Dans un solide cristallin, on appelle phonons les quanta de vibrations du réseau. Dans un<br />

agrégat à monomères fractals, il existe un régime vibration où le phonon devient plutôt fracton. Le but<br />

précis de notre recherche est de démontrer de façon théorique et expérimentale que l’interaction fractonphonon<br />

peut être utilisée pour augmenter le rendement de photoluminescence des semi-conducteurs à<br />

transition de bande indirecte comme le Si et le Ge. Nous avons, en outre, mis au point un modèle théorique<br />

complet et élaboré un protocole expérimental qui nous permet de démontrer l’efficacité de cette théorie.<br />

Notre protocole est constitué de la production de nos nanostructures, de l’observation et de l’étude<br />

topologique des agrégats, de l’observation de la photoluminescence et de l’analyse de la composition<br />

atomique.Le défi technique charnière dans cette étude est la production de nos agrégats. La seule façon<br />

pour nous d’obtenir des agrégats de grandes tailles et de morphologies intéressantes pour toutes les étapes<br />

de notre protocole est la production en impesanteur.<br />

26


6.5 Production d’alliages binaires par évaporation-condensation laser<br />

Jean-Claude Leclerc, Yvanho Romanesky, C. Rioux, M. Piché, R J. Slobodrian, Département de<br />

physique,de génie physique et d’optique, Université Laval,Québec, QC<br />

Plusieurs alliages sont difficiles, voir impossible à réaliser en phase liquide. La température de fusion d’un<br />

élément est parfois de l’ordre de grandeur de la température d’évaporation de l’autre élément, comme c’est<br />

le cas pour l’aluminium et le tungstène. Cela amène des problèmes d’homogénéité de la composition de<br />

l’alliage ou bien tout simplement l’impossibilité d’obtenir un alliage entre des éléments. L’objectif final de<br />

ce projet est de produire des alliages macroscopiques d’aluminium-tungstène en phase vapeur par la<br />

méthode d’évaporation-condensation par laser. Le rapport des masses atomiques Al:W étant de 1:6.8, une<br />

bonne compréhension du comportement des atomes évaporés est requise afin d’obtenir une distribution<br />

d’énergie permettant une interaction entre les atomes Al et W. Pour la phase initiale du projet, les<br />

expériences se sont déroulées au sol et en utilisant un laser excimer KrF à 248nm. Des alliages binaires<br />

microcristallins d’Al-W ont été produits déjà par notre groupe en superposant les zones de condensation<br />

des éléments. Des expériences en gravité réduites permettraient d’obtenir des cristaux de plus grandes<br />

dimensions rendant possible l’étude de la distribution des éléments à l’intérieur des cristaux. De plus, il<br />

serait possible d’étudier l’ajout d’éléments d’alliage à divers stade de la croissance cristalline et ainsi de<br />

mieux comprendre l’interaction des éléments lors de la formation des alliages à partir de la phase vapeur.<br />

L’élaboration d’un évaporateur utilisant un laser plus compact serait alors requise afin de mener à bien ces<br />

expériences en gravité réduite.<br />

6.6 Simulation non séquentielle des procédés d’agrégation en microgravité<br />

Karl-Alexandre Jahjah et R. J.Slobodrian<br />

Département de physique, de génie physique et d’optique,<br />

Université Laval<br />

Notre groupe de recherche se penche depuis plusieurs années sur l’étude de la matière fractale produite par<br />

évaporation condensation effectuée en microgravité réelle ou simulée. Nous produisons plus précisément<br />

des agrégats à monomères sphéroïdaux et des microcristaux connectés selon une topologie fractale. Les<br />

propriétés physiques de cette matière diffèrent de la matière ordinaire à plusieurs niveaux. La plupart des<br />

modèles de simulation d’agrégation utilisent une technique séquentielle pour créer les agrégats, ce qui n’est<br />

probablement pas représentatif des interactions entre les différents agrégats durant l’agglomération. Nous<br />

avons donc développé un nouveau programme de simulation basé sur un modèle balistique et qui permet<br />

d’utiliser la force brute pour simuler l’agrégation simultanée de plusieurs milliers de monomères à<br />

l’intérieur d’une enceinte. Le but de cette recherche est de mesurer l’impact des agrégations agglomérats à<br />

agglomérat sur la dimension fractale et donc sur les propriétés des agrégats obtenus expérimentalement. La<br />

nouvelle simulation permet également de tenir compte de l’inertie angulaire des particules afin de mesurer<br />

l’impact de la rotation des agrégats sur la croissance directionnelle. Finalement, la simulation permet de<br />

mesurer l’effet de la présence dans l’enceinte d’un gaz neutre.<br />

6.7 Preliminary Results of Thermal Diffusion Coefficients for Different Hydrocarbon Mixtures<br />

Experiment Flown on Board Foton M3 Mission<br />

M. Z. Saghir*, T.J. Jaber, and Y. Yan<br />

Ryerson University, Department of Mech and Ind Engineering, Toronto, Canada<br />

*Corresponding author E-mail: zsaghir@ryerson.ca<br />

Flow due to thermodiffusion may change direction in fluid mixtures with the variation of composition and<br />

temperature. This occurrence remains an unraveled phenomenon in petroleum research. Using a modified<br />

theoretical approach developed by Pan et al [J. of Chemical physics, Vol 126, No 1, 2007], this paper<br />

evaluates the thermal diffusion factor in hydrocarbon mixtures (mixtures 1 and 2) and for alkanol water<br />

mixtures, ( mixture 3). The thermal diffusion factor is compared with available ground base experimental<br />

data and flight data. Results revealed an excellent agreement with the ground base experiment and excellent<br />

27


accuracy of the model. In addition, the theory detected the sign change for mixture 3 when the<br />

concentration of water is higher then the alcohol component in the mixture. TOTAL Oil Company is still<br />

analyzing our results and it is the intention of the authors to present a preliminary results as it becomes<br />

available. The mixtures, which will be discussed, are;<br />

Mixture 1 Dodecane (C12), Isobutylbenzene (IBB), Tetrahydronaphtalene (THN)<br />

Mixture 2 Dodecane(C12), n-Butane(C4), Methane(C1)<br />

Mixture 3 Water-Isopropanol<br />

Mixture 4 Dodecane (C12), Isobutylbenzene (IBB), Tetrahydronaphtalene (THN), Decane<br />

All the analysis is performed at a pressure ranging from 1 bar to 350 bars with a temperature variation from<br />

328 to 338 K. Results revealed the importance of measuring those coefficients in a convection free<br />

environment as the one available on board FOTON M3. On the hardware aspect special discussion<br />

focusing on the hardware development and the challenges facing the industry in achieving a successful<br />

experiment will be discussed. In particular technological challenge such as better sealed valve to operate at<br />

high pressure, accurate temperature sensors, efficient thermal system are some of the issue which will be<br />

discussed in details.<br />

6.8 The Shape of Impact Craters in Granular Media<br />

Simon de Vet, Dr. John de Bruyn<br />

University of Western Ontario,<br />

Physics and Astronomy<br />

Craters are ubiquitous on solid bodies in our solar system, but we rarely observe the formation of these<br />

craters. We study the formation low energy impact craters in granular media, both as a model for high<br />

energy craters on the geologic scale, and to better understand the formation of secondary craters formed<br />

when the ejecta from a larger crater returns to the surface. We've used laser profilometry to investigate the<br />

shape of our impact craters, and relate this to the impact parameters. We find that the shape of the resultant<br />

crater is mostly determined by the collapse of an unstable, transient crater. To investigate these dynamics,<br />

we sandwich a granular layer between two vertical glass plates which allows the direct observation of<br />

subsurface flows normally hidden in 3-D. Particle image velocimetry is used to accurately visualize these<br />

flow dynamics.<br />

6.9 Double-helical contact processes and heat exchange<br />

Heather-Jean May, Brian J. Lowry (presenting)<br />

Department of Chemical Engineering, University of New Brunswick<br />

Our theoretical and experimental results demonstrate that double-helical boundaries have broad utility in<br />

containment of open, drainable filaments of liquid. In microgravity, loosely twisted double-helical<br />

boundaries, such as paired springs, can support a stable liquid filament of infinite length; this contrasts well<br />

with cylindrical liquid bridges, where a maximum length to diameter ratio of 6.28 severely limits their<br />

utility. Unfortunately, our terrestrial experiments have necessarily been limited to liquid-liquid systems in<br />

a Plateau tank, where it is impossible to investigate either gas-liquid interfaces or potential vibration issues<br />

that would exist in open environments. Certain evident gas-liquid applications of double-helical<br />

containment are open-contact processes and heat exchange, and further investigation of these will require<br />

spaceflight experiments. The fundamentals of double-helical containment will be presented alongside two<br />

potential spaceflight experiments that would further our understanding of the fundamentals: humidification<br />

and liquid-metal heat exchange. As double-helical supports can be stored as compressed springs weighing<br />

no more than a few grams, experiments on humidification would be especially straightforward. This would<br />

clarify the long-term stability and drainability of long, supported liquid filaments (both over slow<br />

evaporation of water) as well as the sensitivity of the filaments to flow rate (through the filament) and the<br />

28


dependence of evaporation rate on flow and volume.<br />

Both the humidification and liquid-metal experiments would require precision-machined helical supports,<br />

constructed from a light spring material to permit compact storage. Humidification can be freely<br />

investigated in open, ambient conditions, but liquid metal would require a sealed enclosure (mercury) or<br />

300 -- 800 deg C oven (e.g. silver-copper or gold-tin alloys). The experiments are largely scaleindependent,<br />

but the extended supports will require a space approximately 100 times the diameter in length<br />

(20 cm by 2 mm, for example). The experiments will also require simple machinery for<br />

expanding/collapsing the supports while simultaneously filling/emptying them from a syringe-type source.<br />

The filling of the supports can be monitored by changes in resistance across the two helical supports, so<br />

that no visual observation of liquid metal experiments would be required.<br />

6.10 Microgravity double-helical fluid containment<br />

Heather-Jean May (presenting), Brian J. Lowry<br />

Department of Mechanical Engineering, University of New Brunswick<br />

Double-helical containment is a novel approach to open containment in microgravity. In contrast to<br />

axisymmetric containers there is no length restriction on properly designed double-helical containers. Use<br />

of a double helix permits drainage to zero volume, an uncommon feature in microgravity; near-complete<br />

drainage is a key feature for any practically useful container. That double-helical containers are open and<br />

tubular makes possible a broad range of applications that rely on accessible fluids. Helical supports permit<br />

filamentary containers of infinite extent, but only double-helical containers are stable down to zero volume.<br />

The base case of symmetric supports (separation angle 180 degrees) is considered in terms of symmetric<br />

volumes as well as asymmetric helicatenoid volumes. The distinct symmetric and asymmetric cases are<br />

then related by perturbing the angle of separation between the supports. Helicatenoid volumes may<br />

combine to form a dual helicatenoid volume, which is interesting in that it permits multiphase tube-like<br />

geometries. Double-helical behaviours such as drainability are found to vanish beyond a critical separation<br />

angle of about 246.5 degrees. A secondary shift in behaviour occurs at 209 degrees, where separate regions<br />

of stability become more connected. The common structures of DNA coincide with the limiting geometry<br />

at 209 degrees. Experimental results roughly verify the volume maximum for near-symmetry, and more<br />

importantly verify stability to zero volume. Future spaceflight experiments would permit the stability of<br />

arbitrarily long supported liquid filaments to be measured in a true microgravity environment.<br />

6.11 Numerical Simulation of Liquid Sloshing in Microgravity<br />

Hamideh B. Parizi 1 , Javad Mostaghimi 2<br />

1 Simulent Inc., Toronto, Canada, parizi@simulent.com<br />

2 University of Toronto, Toronto, Canada, mostag@mie.utoronto.ca<br />

Sloshing occurs when a partially-filled container of liquid goes through transient or steady external forces.<br />

Under such conditions, the free surface of the liquid may move and the liquid may impact on the walls of<br />

the container, exchanging forces. Since every satellite or spacecraft carries liquid in form of fuel or water,<br />

the knowledge of the behavior of liquid under such conditions is very important to help understand how<br />

sloshing affects the attitude control of launchers and space vehicles as well as the commercial or scientific<br />

satellites.<br />

Sloshing is a free surface flow problem and under microgravity conditions fluid behavior is more<br />

complicated than under terrestrial conditions, because capillary forces at the free surface could dominate<br />

the fluid flow.<br />

A computational fluid dynamic (CFD) code called SimSlosh has been developed in Simulent Inc., to<br />

investigate the liquid sloshing under normal gravity as well as the microgravity conditions. The numerical<br />

29


esults from the code have be used for optimizing the tank design and studying the different aspects of the<br />

liquid slosh, from effects of the physical properties of liquids to the different operational conditions and<br />

tank geometrical shapes. The code has the ability to be coupled to any dynamic code to model the results of<br />

the forces and their effect on satellite attitude. Capillary effects are characterized by surface tension at the<br />

liquid/gas interface and contact angle at the liquid/wall contact line. Both static and dynamic contact angle<br />

concepts can be applied in SimSlosh code.<br />

Although the code has been used to model liquid sloshing under microgravity conditions, the results must<br />

be further validated using experimental results obtained through spaceflight experiments. In 2005,<br />

European Space Agency launched a mini satellite to measure the effects of liquid sloshing under<br />

microgravity conditions. The results of that experiment, SloshSat Flevo, are now available and have been<br />

used by European researchers to validate their model. In addition to using those results for validating our<br />

code, which is more accurate in terms of free surface tracking of the liquid and implementation of the<br />

contact angle, we will propose to design and coordinate a Canadian experimental initiative for future<br />

spaceflight experiments.<br />

6.12 Modeling of thermodiffusion experiments for hydrocarbon mixtures and water-alcohol<br />

mixtures On Board FOTON M3<br />

C. Y. Yan, P. Ezzatian, T. J. Jaber, M. Z. Saghir*<br />

Ryerson University, Dept of Mechanical and Industrial Engineering<br />

Thermodiffusion experiments have been conducted on board FOTON Soyuz rocket in September 2007.<br />

The space hardware used is developed by the European Space Agency. And the TOTAL Oil Company in<br />

France is currently in the progress of data analysis. On the numerical side, we have modeled the<br />

thermodiffusion experiments for hydrocarbon mixtures containing methane, n-butane and dodecane in<br />

6mm experimental cells and a water-isopropanol mixture in 12mm experimental cells. Two types of<br />

scenarios have been considered in the numerical modeling: (1) static 10 -6 g 0 ; and (2) FOTON-12 TRAMP.<br />

Scenario (1) may be regarded as a “perfect” condition that a space experiment can possibly achieve.<br />

Scenario (2) may be regarded as a “real” condition. Numerical results, e.g., thermodiffusion coefficient,<br />

temperature, concentration etc., under both scenarios will be presented and discussed in detail. Based on the<br />

numerical results, average thermodiffusion coefficients at both hot and cold side of the experimental cell<br />

can be derived. These results may be compared with the space experimental data in the near future upon the<br />

availability.<br />

*Corresponding Author<br />

Table 1: Mixtures measured and modeled onboard FOTON Satellite<br />

Hydrocarbon mixtures (in mole fraction)<br />

Label C1 (C 12 H 26 ) C2 (nC 4 H 10 ) C3 (CH 4 )<br />

Mix1 0.7 0.1 0.2<br />

Mix4 0.4 0.4 0.2<br />

Mix5 0.3 0.5 0.2<br />

Water-alcohol mixture (in mass fraction)<br />

Label Water Isopropanol<br />

W-2P 0.9 0.1<br />

30


6.13 Diffusion in Liquids<br />

Bjarni Tryggvason<br />

Visiting Professor, University of Western Ontario<br />

Canadian Space Agency<br />

Diffusion is fundamental in heat and mass transfer and become in many experiments the dominant term in<br />

the free-fall condition of space. While diffusion has been taken as well understood, experiments conducted<br />

on the space shuttle and on the Russian space station in the late 1990’s demonstrate quite clear departures<br />

from what would be predicted on the basis of ground based work. These basic results will be reviewed<br />

along with results from ground-based work done under conditions of suppressed convection. The current<br />

effort to replicate the results will be outlined along with some of the challenges.<br />

6.14 The effect of gravity on flame shape and radiation in laminar diffusion flames<br />

Marc R.J. Charest, Clinton P.T. Groth, and Ömer L. Gülder<br />

University of Toronto, Institute for Aerospace Studies<br />

4925 Dufferin Street, Toronto Ontario M3H 5T6<br />

Combustion phenomena display significant changes under microgravity conditions as compared to normal<br />

gravity flames. The major cause of these changes is the suppression of buoyancy-induced effects. At<br />

elevated pressures on earth, the influence of buoyancy increases sharply with pressure. Therefore,<br />

microgravity and high pressure on earth are the limiting cases for the influence of buoyancy. The findings<br />

of the current research activity have the potential to provide tools for efficient and reliable fire safety<br />

measures for human-crew missions in space and propulsion system design.<br />

The main focus of this effort is the numerical simulation of laminar diffusion flames, which is complicated<br />

by complex processes such as chemistry, diffusion, radiation, and soot formation/destruction. While several<br />

detailed studies of laminar flames exist at atmospheric conditions, those at elevated pressures or<br />

microgravity are limited or nonexistent. Currently, a code capable of solving laminar reacting flows with<br />

detailed chemistry and radiation has been developed. The code makes use of a Godunov-type finite volume<br />

scheme and a parallel block-based adaptive mesh refinement algorithm. Radiation is modelled using the<br />

optically thin approximation, the discrete ordinates method, and the finite volume method. The statistical<br />

narrow band correlated-k method is used to quantify gas band absorption. At present, models capable of<br />

predicting the nucleation, growth, and oxidation of soot are being developed.<br />

As a first step, a 2D laminar co-flow methane diffusion flame was simulated neglecting soot. Gravity was<br />

varied from 1g to various levels of reduced gravity using several radiation models. The effects of gravity<br />

on radiation and flame shape are reported as well as the effect of choice of radiation model. The findings<br />

of this work and future accomplishments aim to improve our fundamental understanding of laminar<br />

diffusion flame stability and help to formulate a potential microgravity experimental program.<br />

An eventual flight experiment within the scope of this work would include measurement of the flame<br />

shape, and the structure of the temperature field and soot distribution within a laminar diffusion flame<br />

envelope under microgravity conditions. These measurements could be accomplished using a 2D CCD<br />

camera by evaluating the spatially-resolved spectral emission from the flame. Flames would be stabilized<br />

on a small burner of a few millimeters using low fuel flow rates such that the flame height would be about<br />

10 to 20 millimeters.<br />

31


6.15 Flame Propagation in Discrete, Heterogeneous Media<br />

François-David Tang, Andrew Higgins and Sam Goroshin<br />

McGill University, Dept. of Mechanical Engineering<br />

A novel theoretical approach for the description of reactive waves in discrete systems has been recently<br />

developed at McGill University. The theory predicts the existence of two asymptotic regimes of flames in<br />

discrete media. When the flame thickness is much greater than the inter-particle spacing, the flame can be<br />

modeled as a continuum wave in accordance to the classical flame theory. In the other extreme, a system<br />

with rapidly reacting particles, the heterogeneous flame can no longer be treated as a continuum and<br />

discrete effects become dominant. The effects of discreteness are characterized by a strong dependence of<br />

flame speed on the spatial distribution of the sources (i.e., density fluctuations) and results in a flame<br />

propagation limit that is not dictated by heat losses from the system. The theory predicts a complex<br />

dynamics near the propagation limits manifested by a transition to chaos. Numerical simulations of the<br />

systems with randomly distributed particles show a strong dependence of the propagation limit on the size<br />

of the domain, characteristic of percolation-type phenomenon. Experimental observation of the flame near<br />

the propagation limit and verification of percolation is challenging even in the reduced gravity onboard<br />

parabolic flight aircraft due to sensitivity of the near-limit flames to g-jitters. An analysis of candidate<br />

systems for the observation of percolating flames necessitates a long-duration, high-quality weightless<br />

environment achievable only on orbital platforms. The proposed experimental set-up is envisioned as an<br />

insert into the ISS Combustion Rack supplemented with a video registration complex and laser illumination<br />

system.<br />

6.16 High-density/low-cost micro-gravity protein crystallization methodology<br />

Bart Hazes (Assistant Professor)<br />

Dept. of Medical Microbiology & Immunology University of Alberta<br />

1-15 Medical Sciences Building<br />

Edmonton, Alberta<br />

Micro-gravity has a theoretically well-defined benefit on crystallization by minimizing convective currents<br />

around a growing crystal. The resulting diffusion-limited mass transport of molecules to the crystal surface<br />

leads to crystal growth at a preferred lower level of supersaturation. Unfortunately, experiments to<br />

demonstrate the benefit of micro-gravity for protein crystallization have had mixed results and, in general,<br />

have failed to meet expectations. The mixed success could indicate that i) micro-gravity improves crystal<br />

quality for some but not all proteins, ii) the technical challenges to execute experiments in a space<br />

environment may have negated any real benefits, iii) the small number of micro-gravity experiments,<br />

combined with inherent variability in crystal quality, is inadequate to detect systematic differences.<br />

In the past decade, high-throughput methodologies have implemented efficient high-density, low-volume<br />

crystallization experiments. This makes it nearly impossible for complex and costly micro-gravity<br />

crystallization instruments to compete, unless we can transform the same high-throughput methods to a<br />

micro-gravity-compatible format. The objective of the CSA-funded study is to develop high-density<br />

crystallization plates that allow state-of-the-art high-throughput crystallization methods to be performed in<br />

a micro-gravity environment. Sub-microliter crystallization drops will be kept in a frozen state until stable<br />

orbit is reached. Crystallization is than initiated by thawing of the drops and, if desired, the experiment can<br />

be terminated by re-freezing if required. This technology has the potential to carry out orders of magnitude<br />

more experiments at a greatly reduced cost. In addition it avoids past problems in creating accurate ground<br />

controls.<br />

The current first phase research aims to find and test suitable crystallization plates, determine if freezing<br />

itself affects crystal formation, and how cooling-rate, presence of cryo-protectants and other experimental<br />

conditions influence the process. If successful, a second phase project, in collaboration with CSA<br />

32


engineers, would focus on building a compact piezo-electric cooling device to advance the project to a<br />

spaceflight experiment. This second stage would also look at vibration-isolation and, possibly, in-flight<br />

monitoring of experiments.<br />

6.17 Quantum Communication and SpaceQUEST<br />

Authors: Chris Erven 1 , Raymond Laflamme 1,2 , and Gregor Weihs 1<br />

Affiliations:<br />

1 Institute for Quantum Computing and Department of Physics and Astronomy, University<br />

of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1<br />

2 Perimeter Institute for Theoretical Physics, 31 Caroline St, Waterloo, Ontario, N2L 2Y5<br />

While the origins of quantum physics are more than one hundred years old, we have only recently begun to<br />

understand its power in information processing. Feynman was among the first to suggest that quantum<br />

systems may go beyond those based on classical physics in a way that fundamentally changes the<br />

representation of information. While full-scale quantum computers are still out of reach, secure<br />

communication based on quantum physical laws is starting to become a commercial product. Yet, such<br />

ground-based quantum key distribution (QKD) systems will not be able to go any further than 200 km,<br />

because of the intrinsic propagation loss in optical fibers.<br />

We have designed and built a QKD system that uses free-space optical (FSO) transmission to connect three<br />

buildings in Waterloo. Near the ground an FSO system won’t outperform fiber-based ones due to the strong<br />

scattering and turbulence in the troposphere. Space based systems, for example on LEO satellites may be<br />

the only solution.<br />

To this end and for experiments that test the very foundations of quantum physics, the SpaceQUEST<br />

mission has been proposed to ESA by a consortium of physicists, led by Anton Zeilinger (Vienna, Austria).<br />

ESA has funded some preliminary studies and is currently sponsoring a Topical Team that supports the<br />

SpaceQUEST proposal. SpaceQUEST aims to put a source of entangled photon pairs into orbit, such that<br />

two ground stations can simultaneously see the source for some time and create a secret random encryption<br />

key. We will present our own ground-based results and how they relate to the SpaceQUEST proposal.<br />

6.18 Durability Enhancement and Contamination Prevention for Functional External Materials in<br />

Space Missions<br />

Z. Iskanderova, J. Kleiman, V. Issoupov, R. Ng<br />

Integrity Testing Laboratory Inc., 80 Esna Park Drive, Units #7-9,<br />

Markham, ON, L3R 2R7, e-mail: ziskanderova@itlinc.com<br />

A program was initiated at ITL to further improve the space durability and radiation resistance of<br />

conductive and non-conductive polymer-based thermal control paints and other external space materials.<br />

The main goal was to evaluate the enhancement of space durability and space environment resistance of the<br />

thermal control paints and other functional external materials by innovative patented ITL technologies.<br />

The results of surface modification of some advanced Russian conductive paints, USA and European space<br />

paints, including their ground-based testing and performance evaluation, are presented. Results of radiation<br />

testing are also presented for the Russian conductive paints. Functional properties and performance<br />

characteristics, such as erosion resistance, thermal optical properties, surface resistivity characteristics of<br />

pristine and treated materials were verified using independent testing facilities. Test results revealed that<br />

the successfully treated materials exhibit strongly reduced mass loss or full stabilization and no surface<br />

morphology change, thus indicating good protection from the severe oxidative environment. It was<br />

demonstrated that the developed surface modification treatment could be applied successfully to not only<br />

non-conductive but also to charge dissipative and conductive paints.<br />

33


Contaminating films on spacecraft sensitive materials surfaces in many cases consist primarily of products<br />

resulting from the interaction of atomic oxygen with silicones. Necessity of a drastic reduction of the<br />

outgassing of volatiles and the reduction or prevention of the following contamination of the sensitive<br />

spacecraft structures, such as containing optical and thermal control materials, has thus become a<br />

challenging problem. The effective surface conversion of space-related silicone thermal control paints to<br />

oxide-based protective sub-surface layers under ground-based air plasma at specific conditions, or surface<br />

modification of various thermal control materials by specially developed ITL patented pre-treatment<br />

technology has been researched. Complementary surface analysis techniques have been used to assess the<br />

surface composition, bounding states re-arrangements, and atomic oxygen resistance during oxygen plasma<br />

asher and fast atomic oxygen (FAO) testing of the treated materials.<br />

It was shown that the application of this approach may provide the essential pre-flight surface conversion<br />

of space materials and structures that are coated with silicone-based coatings and/or other advanced thermal<br />

control paints to oxide(s)-based protective surface structures. Since the air plasma treatment is performed at<br />

atmospheric pressure, this proposed surface modification technique is easy and cost-effective to apply to<br />

three-dimensional complex shapes.<br />

The preliminary results indicate at potential opportunities of the proposed ground-based pre-treatment<br />

technologies to substantially reduce or prevent the contamination of spacecraft sensitive structures and<br />

advanced thermal control conductive and non-conductive coatings by silicone-coated space materials and<br />

drastically enhance their durability in space flights.<br />

6.19 Impact of Gaseous and Temperature Environmental Conditions on Thermal Parameters of<br />

Materials and Protective Structures of Satellites, Spacecraft and Landing and Re-Entry Space<br />

Vehicles<br />

E. Litovsky, V. Issoupov, S. Horodetsky, J. Kleiman<br />

Integrity Testing Laboratory Inc., 80 Esna Park Drive, Units 7-9, Markham, ON,<br />

Canada, L3R 2R7, E-mail: elitovsky@itlinc.com, Phone: 905 4152207, FAX: 905 4153633<br />

Thermophysical properties of protective spacecraft materials determine the heat transfer, temperature, rate<br />

of ablation, weight and safety of re-entry and planetary-landing of space vehicles.<br />

Generally, temperature affecting the spacecraft materials can be from -200°C up to materials’ melting point<br />

(>2000°C), the gas pressure ranges from 10 -6 Pa to 10 7 Pa. Extensive experimental data have shown that<br />

high vacuum conditions, gas pressure and temperature changes in space and during the landing and re-entry<br />

phase of spacecraft can dramatically influence (5-10 times) the materials thermal conductivity. These<br />

variations are explained using the classical (conduction, radiation, gas convection) and novel heat transfer<br />

mechanisms in the materials.<br />

The first group of heat transfer mechanisms includes the heterogeneous heat and mass transfer process in<br />

pores and cracks, including the phenomenon of gas transport (gases are produced due to gas emission,<br />

evaporation and sublimation). The grain boundary segregation and diffusion of impurities can influence the<br />

thermal conductivity of dense oxide materials and metals.<br />

The second group of mechanisms deals with phenomena that involve a mismatch between the thermal<br />

expansion coefficients of different materials.<br />

Experimental methods and analytical technique are being developed for measurement of the materials<br />

thermal conductivity and diffusivity. The experimental technique applied to studying the thermal physical<br />

properties employs either monotonous heating of samples or steady-state analysis of the involved heat<br />

transfer mechanisms.<br />

In this paper, a review and analysis of the described above problems will be made, with an emphasis on<br />

description and explanation of typical experimental results.<br />

34


7 SCIENTIFIC ABSTRACTS FOR POSTER PRESENTATION IN SPACE<br />

LIFE SCIENCES<br />

7.1 Canadian experiments in European bed rest studies, WISE-2005 and ESA-2008<br />

Richard L Hughson 1 , J. Kevin Shoemaker 2 , Philippe Arbeille 3 , Danielle K. Greaves 1 ,<br />

Marc-Antoine Custaud 4 , Reginald Gorczynski 5 and David Hart 6<br />

Universities of Waterloo 1 , Western Ontario 2 , Toronto 5 , Calgary 6 and Tours 3 and Angers 4 (France)<br />

The Women’s International space Simulation for Exploration (WISE) was a 60-day head down bed rest<br />

completed in 2005 by 24 women with or without countermeasures of exercise or nutrition. The objectives<br />

of the Canadian research team were to examine structural and functional changes in the cardiovascular<br />

system that might contribute to the deconditioning responses noted with long-duration space travel. We<br />

used non-invasive technologies including ultrasound and blood pressure measurements to characterize the<br />

changes in cardiovascular properties. To date 4 full journal papers have been published along with many<br />

conference presentations. We observed poor tolerance of the upright posture after bed rest but with benefits<br />

of countermeasures that consisted of supine treadmill running inside a negative pressure box and heavy<br />

resistance exercise. We did note however a very wide range of individual responses that suggest genetic<br />

variants. The data from this study can be applied to astronauts but also to the aging population of Canada<br />

who are also at greater risk for fainting and falling.<br />

The ESA-2008 studies will examine the role of inflammatory processes in the progression of<br />

cardiovascular, bone and muscle changes with short-duration (5-days) bed rest in men. Countermeasures<br />

are planned to be artificial gravity with a short-radius centrifuge.<br />

The inflammatory process plays a key role in disease states including development of atherosclerosis and<br />

osteoporosis. The planned experiments will utilize existing techniques to monitor blood markers of these<br />

processes. Future space flight studies cannot use these laboratory-based techniques but could benefit from<br />

micro-technologies for rapid analyses. Our work also depends on non-invasive cardiovascular monitoring<br />

with ultrasound or other imaging techniques.<br />

7.2 Canadian bed rest experiments – study of the NASA fluid loading protocol<br />

Richard L Hughson 1 , J. Kevin Shoemaker 2 , Danielle K. Greaves 1<br />

Universities of Waterloo 1 and Western Ontario 2<br />

NASA currently recommends that astronauts consume water and salt tablets immediately prior to return<br />

from space in an attempt to increase blood volume. It is proposed that this will support the cardiovascular<br />

system on return to Earth and that it will reduce the chances of fainting. We are currently investigating this<br />

hypothesis using models of 28-hours or 4-hours of bed rest. Previous research in our lab has shown that<br />

there is a marked reduction in tolerance of the upright posture or application of lower body negative<br />

pressure after only 4-hours of head down bed rest. We are further investigating the mechanisms responsible<br />

for poor cardiovascular responses by examining the changes in cardiac output by different non-invasive<br />

methods including ultrasound. Blood measurements of hormones involved in fluid regulation will be<br />

completed.<br />

The results of this study can have important implications for the elderly population as they frequently spend<br />

both short and long periods of time in bed and often suffer from dizziness and fainting on rising from their<br />

beds.<br />

References<br />

Butler, G.C., H.C. Xing, D.R. Northey and R.L. Hughson. Reduced orthostatic tolerance following 4 h 6°<br />

head-down tilt. Eur. J. Appl. Physiol. 62: 26-31, 1991.<br />

35


Fischer D, P Arbeille, JK Shoemaker, DD O’Leary, RL Hughson. Altered hormonal regulation and blood<br />

flow distribution with cardiovascular deconditioning after short-duration head down bed rest. J. Appl.<br />

Physiol. 103: 2018-2025, 2007.<br />

7.3 Research Activities in Radiation Exposure of Space Crew<br />

B.J. Lewis and L.G.I. Bennett<br />

Royal Military College of Canada,<br />

Kingston, Ontario K7K 7B4<br />

K. Garrow and H. Ing<br />

Bubble Technology Industries<br />

Chalk River, Ontario K0J 1J0<br />

The complex space radiation environment offers significant challenges for the dosimetry of space crew<br />

workers. Research activities will be discussed including the calibration of radiation instruments based<br />

on ground-based accelerator studies. This calibration work has focused on neutron dosimetry and<br />

spectrometry for space field application. In particular, ground-based accelerator studies have been<br />

carried out with the nuclear fragmentation separation experiment (NFSE) (with a capability for<br />

charged particle discrimination), a bubble detector spectrometer (BDS) and neutron-sensitive bubble<br />

detectors at the CERN, HIMAC and TRIUMF facilities. Additional work at the PTB and iThemba<br />

laboratories has involved the calibration of the Canadian High Energy Neutron Spectrometry System<br />

(CHENSS) for space application. Various equipments have also been tested at aircraft altitudes.<br />

The development of a novel, biologically-based, device for mixed-field measurement will also be<br />

described. This device may enable personal dosimetry through the recognition of DNA damage (i.e.<br />

single and double strand breaks). A polymeric biosensor is employed to detect all types of radiation of<br />

varying quality and linear energy transfer. Such a device may find particular application on long<br />

duration space missions.<br />

36


8 SPACE AGENCY ABSTRACTS<br />

8.1 Recent Successes in NASA’s Gravity-Dependent Physical Sciences Research Program on the<br />

ISS<br />

Fred J. Kohl 1 , Francis P. Chiarmonte 2 , and Thomas H. St. Onge 1<br />

1<br />

NASA Glenn Research Center, Cleveland, OH, USA<br />

2 NASA Headquarters, Washington, DC, USA<br />

Physical sciences research conducted on the International Space Station (ISS), free flyers or the ground in<br />

the recent past, currently, and planned for the future supports NASA programs in both “Exploration<br />

Research” and “Non-Exploration Research.” The Exploration Research Program aims to fill identified<br />

knowledge gaps required to enable new technologies necessary to support NASA’s planned exploration<br />

missions. The Non-Exploration Research Program is a continuation of the heritage Microgravity Science<br />

Research Program that utilizes the uniqueness of the microgravity and space environment to unmask<br />

phenomena that cannot be observed or studied in the normal Earth environment. The goal of these current<br />

programs is generate research data from science and technology experiments and advance the broader<br />

NASA Exploration Program capabilities by supporting a core group of principal investigators, providing<br />

ground-based facilities and space flight hardware. The “Physical Sciences” referred to herein that comprise<br />

Exploration and Non-Exploration research are derived from the main gravity-dependent aspects of the<br />

traditional disciplines of fluid physics, combustion science and materials science.<br />

Summaries of significant results will be presented from several instruments and experiments conducted<br />

over the past six years of ISS operations. Descriptions will be presented of the capabilities of the major<br />

NASA–developed facilities utilized on the ISS: currently, the ExPRESS Racks, the Microgravity Science<br />

Glovebox (MSG), and the Maintenance Work Area; soon to be utilized, the Combustion Integrated Rack<br />

(CIR), the Fluids Integrated Rack (FIR) and the Materials Science Research Rack (MSRR).<br />

The ISS Traffic Model for physical science experiments and plans for future ISS-based experiments for<br />

both Exploration and Non-Exploration research will be discussed.<br />

8.2 The ESA program in physical sciences in the framework of the ELIPS-ARISE program<br />

research including applications on the ground and in space<br />

O. Minster*, L. Cacciapuoti, D. Jarvis, N. Lavery, S. Mazzoni, O. Minster,<br />

K. Norfolk, A. Orr, A. Pacros, S. Vincent-Bonnieu, D. Voss<br />

Olivier.Minster@esa.int<br />

Physical Sciences Unit<br />

Directorate of Human Spaceflight, Microgravity and Exploration Directorate,<br />

ESA-ESTEC<br />

Keywords: programme in physical sciences, space environment, basic research,<br />

industry relevant research, exploration preparation<br />

ESA has developed a broad set of research activities in physical sciences activities in the framework of the<br />

European Life and Physical sciences in Space (ELIPS) programme of ESA.<br />

Research projects incubated and consolidated in the context of Topical Teams supported by ESA and<br />

eventually submitted to regular Announcements of Opportunity have been selected on the occasion of 3<br />

consecutive Announcements of Opportunity between 1999 and 2004.<br />

These projects that involve team of European, Canadian scientists span over several years and make an<br />

optimal use of the various platforms available to ESA. A large number of these projects will eventually<br />

have dedicated instruments flown on the International Space Station as of early 2008, right after the launch<br />

of the Columbus laboratory.<br />

37


The programme is organised in rather classical research cornerstones, namely<br />

• Fundamental physics (quantum sensors, complex plasmas, dust particles physics and space-atmosphere<br />

interactions),<br />

• Fluid physics (structure and dynamics of fluids, multi-phase systems and interfaces, combustion),<br />

• Materials sciences (materials designed from fluids, thermo-physical properties of fluids to support<br />

advanced processes)<br />

The projects covered by this research plan span basic and applied research, with in a number of cases,<br />

industries associated to the teams running these projects. This industry support has been sustained through<br />

significant delays incurred with the building of the ISS thanks to the alternative opportunities that ESA<br />

could secure on other platforms.<br />

In developing this programme, ESA has maintained high the cooperative spirit that prevailed in the<br />

development of the ISS project. Beyond the “institutionalised” cooperation with Canada through a direct<br />

participation in the ELIPS programme, cooperative projects with NASA could be pursued, as well as with<br />

Russia. The close collaboration with JAXA also enabled the promotion of a number of International<br />

Topical Teams that, we jointly trust, will demonstrate the full potential of cooperation between ISS partners<br />

in maximising the return on investments in scientific instrumentation.<br />

An additional element of the programme is progressively developing, that capitalises on the experience and<br />

knowledge of the scientific community currently active in the programme. As any new technology<br />

development requires a solid scientific basis, initiatives are taken to incubate projects that address more<br />

particularly the science at the basis of the future technologies that are anticipated to be required to support<br />

any manned space exploration programme.<br />

This element of the programme should not be seen as a dramatic change of emphasis in the current ESA<br />

programme, but as the development of a knowledge-based technology maturation activity anticipating on<br />

the future of human spaceflight programmes.<br />

8.3 Sciences de la Matière, CNES<br />

B. Zappoli<br />

Scientifique de programme<br />

CNES, Toulouse, France<br />

Contenu du poster:<br />

-Les enjeux et besoins associés<br />

-Les missions en cours; programmées; probables<br />

-Le positionnement potentiel CNES, Français (labos, industriels), Européen<br />

-Les exigences critiques futures et les Infrastructures clés<br />

-Les compétences indispensables<br />

-Représentation graphique<br />

8.4 On-board Experimental Study of Bubble coalescences and Bubble Oscillations in the<br />

Recoverable Satellite<br />

Q. KANG H.L. CUI L. HU L. DUAN<br />

National Microgravity Laboratory/CAS; Institute of Mechanics,<br />

Chinese Academy of Sciences, Beijing 100080, China ( kq@imech.ac.cn )<br />

Some results on bubble interaction in microgravity are presented in the paper. The microgravity experiment<br />

was performed on board the Chinese 22nd recoverable satellite. In the space experiment, Bubble<br />

coalescences are observed through the bubbles staying at the upper side of the test cell in the experiment.<br />

Reduced gravity is the only way to observe the coalescences of large spherical bubbles without deformation<br />

38


of shape. It is the first time to obtain the detail results of coalescences of large size bubbles in reduced<br />

gravity. The relationship between coalescence time and size of bubbles is analyzed. The bubble oscillations<br />

due to bubble coalescence were researched. The periodicity of bubble oscillation was proved with two<br />

dimension cross correlation to images; the period of bubble deformation was obtained with Fourier analysis<br />

to correlation coefficient, and the period is compared with the theory predicted by Longuet-Higgins(1989).<br />

It was displayed that the part of high frequency in the surface wave during bubble oscillation increased with<br />

the bubble size. But there was still some deviation between the experimental data and the predictions.<br />

8.5 Foton-M3: Technological and Operational Constraints in Meeting Scientific Objectives<br />

A. Verga 1 , J. Winter, R. Demets, P. De Gieter,<br />

European Space Agency (ESA)<br />

European Space Technology and Research Centre (ESTEC)<br />

Directorate of Human Spaceflight, Microgravity and Exploration<br />

Microgravity Payloads and Platforms Division<br />

Noordwijk, The Netherlands<br />

ESA’s scientific programme of microgravity experiments was hit by two significant setbacks, the FOTON-<br />

M1 launch accident on October 15 th , 2002 and the loss of the Columbia Space Shuttle, minutes before its<br />

scheduled landing on February 1 st , 2003. ESA wanted to adhere to established practice, i.e. to re-fly<br />

missions or experiments, which are not successful due to system failures. Immediately after these<br />

accidents, ESA began to study the possibility of re-flying most of the experiments, explored the availability<br />

of spare or qualification models of the lost payloads, and assessed with the industrial partners the effort<br />

necessary to upgrade any existing model to flight standard or to re-build new flight H/W, as appropriate.<br />

The survey was extended to other national agencies like CSA, CNES and DLR, ESA’s partners in previous<br />

FOTON missions.<br />

The tragic loss of the U.S. Shuttle Columbia pressed ESA to look for re-flight possibilities of the STS-107<br />

experiments. The main conclusion was that, in view of the nature and the size of the payloads, a FOTON reflight<br />

was the best option. Driven by these facts, the negotiations with Russian partners led to a commonly<br />

accepted understanding for the contractual and utilisation details of two FOTON missions, their payload<br />

complement and their launch schedule. An agreement was then reached in October 2003, and subsequently<br />

amended in November 2005, for an overall ESA payload mass of about 700 kg, lately increased to 800 kg,<br />

distributed over two flights, FOTON-M2 and FOTON-M3, with launch dates on May 31 st 2005 and<br />

September 14 th 2007, respectively.<br />

ESA has been using FOTON and BION since 1987 for its physical science and life science experiments.<br />

Several ESA instruments, specifically designed for FOTON/BION, had flown aboard these spacecraft.<br />

FOTON-M2 lifted-off from Baikonur for the first time in the FOTON history. FOTON-M3, also launched<br />

from Baikonur was the twelfth such missions that ESA has been involved in, with a total payload mass of<br />

almost 400 kg, and brought back a substantial deal of scientific and technological results. The Russian<br />

FOTON and BION spacecraft, conceived to conduct mainly experiments in weightlessness, have been<br />

designed and built by the Central Specialised Design Bureau of the State Research and Production Space<br />

Rocket Centre (TsSKB-PROGRESS), in Samara (Russia) and made the first flight in 1985.<br />

This talk presents the main features and the preliminary results of the FOTON-M3 mission, and addresses<br />

the challenge of developing and operating payloads to meet a wide range of scientific objectives in both life<br />

and physical sciences within the given technical and logistical constraints. Thanks to the long-standing<br />

experience with these missions, to their unique flexibility and typical features, and to their educational<br />

value, ESA is drawing plans to continue the exploitation of FOTON and/or BION for an even larger breadth<br />

of users, where highly ranked experiments benefit of the excellent microgravity conditions that such<br />

platforms guarantee.<br />

1 Tel. +31-71-565-3098; Fax. +31-71-565-3141; e-mail antonio.verga@esa.int<br />

39


9 TECHNOLOGY DEVELOPMENT ABSTRACTS FOR ORAL<br />

PRESENTATION IN SPACE PHYSICAL SCIENCES<br />

9.1 An Application of Hardware Development for Microgravity Research<br />

Stephen Churchill, C-CORE, St. John’s, NL, Canada, stephen.churchill@c-core.ca<br />

Gerald Piercey, C-CORE, St. John’s, NL, Canada, gerald.piercey@c-core.ca<br />

The Soret Coefficients of Crude Oil (SCCO) experiment is multi-flight set of fluid physics microgravity<br />

experiments representing a series of collaborations between the Canadian Space Agency and the European<br />

Space Agency.<br />

The scientific objective of the experiments is to increase our understanding of the transport of fluids within<br />

oil reservoirs which will lead to improving methods for enhanced oil recovery. Specifically, the SCCO<br />

experiment attempts to determine the Soret Coefficient of specific samples, including hydrocarbons.<br />

C-CORE (St. John’s, NL) designed and constructed the control electronics and software which then<br />

combined with fluid sample containers constructed by Verhaert Aerospace of Belgium. This and similar<br />

configurations were flown on the Russian Foton M1, M2, and M3 scientific research satellites. These<br />

experiments and the research program which they represent are strongly supported by academia and<br />

industry, including Ryerson Polytechnic University and the Microgravity Research Center in Belgium.<br />

The latest successful flight of the SCCO experiment was completed in September of 2007. The sample<br />

mixtures were placed under a thermal differential for 200 hours, returned to earth and recovered. Each of<br />

the seventeen samples was divided by a valve while in flight and all are currently being analyzed to<br />

determine the results of diffusion.<br />

Technical challenges included the storage of samples under high pressure, the establishment and<br />

maintaining of steady state temperature differentials for long periods via control algorithms, heater control,<br />

bidirectional thermoelectric cooler and motor control, accurate measurement and monitoring of<br />

temperatures and power consumption, as well as autonomous and interactive telemetric experiment control.<br />

This presentation details scientific requirements, how these were met for the Foton M3 flight of the SCCO<br />

experiment, the operational results of the flight and a summary of the scientific results to date.<br />

9.2 System Identification and Performance Testing of the Microgravity Vibration Isolation<br />

Subsystem (MVIS) for the European Space Agency’s Fluid Science Laboratory<br />

Authors: Derrick Piontek 1 , Jean de Carufel 1 , Michael Labib 1 , Nicolas Valsecchi 2<br />

1 Bristol Aerospace Limited / Magellan Aerospace Corporation, Ottawa, Ontario, Canada<br />

2 Canadian Space Agency, St-Hubert, Québec, Canada<br />

Building on the successes of the Canadian Space Agency’s Microgravity Vibration Isolation Mount (MIM)<br />

technology aboard both the US Space Shuttle and the Russian MIR space station, the Microgravity<br />

Vibration Isolation Subsystem (MVIS) is the third generation of the MIM technology. Integrated within<br />

the European Space Agency’s (ESA) Fluid Science Laboratory (FSL), which was successfully delivered to<br />

the International Space Station (ISS) during the US Space Shuttle flight STS-122, the MVIS is designed to<br />

actively isolate the FSL’s Facility Core Element (FCE) from vibrations in the ISS. The system is based on<br />

a six degree of freedom (6DOF) magnetic levitation (MAGLEV) scheme using wide gap actuators whose<br />

magnets and coils are located on the FCE and the FSL respectively.<br />

40


The FSL facility is designed to study the dynamics of fluids in the absence of gravitational forces and<br />

houses individually developed Experiment Containers (EC). The ECs can utilize the standard FSL utilities<br />

and diagnostics along with the MVIS for a reduction in the vibratory environment. This isolation from the<br />

surrounding vibrations is important for many experiments including the study of multi-phase flows and<br />

diffusion-controlled heat/mass transfer in crystallization processes. CIMEX-1, part of the ESA CIMEX<br />

Migrogravity Application Promotion (MAP) project to study dynamics of evaporating liquids, is the first<br />

EC slated to utilize the isolation capabilities of MVIS.<br />

MVIS has been designed to isolate experiments from vibratory accelerations greater than 0.01 Hz.<br />

However the isolation performance of the MVIS is directly related to the FSL umbilical stiffness, the bias<br />

forces required to maintain the FCE in a centered position, the level of disturbances on the FCE, and the<br />

presence of umbilical dynamics that are difficult to characterize. The FSL umbilicals, the electrical<br />

harnesses and air/fluidic cooling lines connecting the isolated FCE to the FSL, are the primary points of<br />

concern for the analysis. An extensive effort has been undertaken to identify the FSL umbilical stiffness<br />

and bias. This includes the creation of a simulated umbilical model using FSL design data, the creation of<br />

numerical models, 6DOF ground based testing of the FSL flight model and simulated umbilical model<br />

using custom designed balancing beams and test rigs, along with parabolic flight testing of the simulated<br />

umbilical model on the ESA Zero-G Airbus A300. The MVIS performance is then estimated using the<br />

results of the testing paired with a high fidelity simulation of the MVIS system.<br />

Bristol Aerospace Limited, a division of Magellan Aerospace Corporation, is responsible for development<br />

of elements of the MVIS including system integration and performance testing. This paper will give an<br />

introduction to the MVIS system, present the findings of the system identification and performance testing,<br />

summarize the activities undertaken and recommended to reduce the FSL umbilical stiffness and improve<br />

isolation performance, and provide an overview of the on-orbit activities used in the identification and<br />

commissioning of MVIS.<br />

9.3 Space-DRUMS® - Facility for the ISS<br />

Guigné International Ltd (GIL)<br />

Dr. Jacques Guigné<br />

Colorado School of Mines<br />

Dr. John Moore<br />

Sponsor: NASA Innovation Partnership Program.<br />

Scheduled operation for ISS late 2009 to 2014. Space-DRUMS is a full rack facility occupying an<br />

EXPRESS rack and uses acoustics to position objects inside its processing chamber.<br />

Designed to operate on the ISS over long periods with minimum astronaut support using TREK<br />

commanding and making functional changes by simple ground-based software commands. Materials for<br />

processing transported in carousels.<br />

Availability to ground-based equipment to universities and laboratories GIL Stairwell approach for ground<br />

studies to space<br />

Ground based chambers<br />

COSYM facility: Parabolic Aircraft<br />

Single Axis Levitator: Ground based, parabolic flights<br />

Space-DRUMS® on ISS<br />

Possible future facility on the Moon<br />

Instrumentation includes:<br />

Temperature measurement up to 2500°C<br />

Video data in visible (CCD) and thermal infrared<br />

Triple containment for safety<br />

41


Independent modular construction with standard connectors; each unit can be shared by other ISS payloads.<br />

Designed to produce lighter, stronger, harder and higher temperature resistant materials, either dense or<br />

porous<br />

Develop processes that reduce spacecraft weight and power consumption and for using in-situ resources<br />

Perform experiments with high scientific merit<br />

Involve students and industry to participate<br />

List of possible candidates- both process and advanced materials in space, focus has been on the use of<br />

Moon regolith<br />

•Glass, IR Glasses, Glass ceramics<br />

•Ceramic foams, Metal-Ceramic foams for structures<br />

•Filters<br />

•Acoustic abatement in high temperature applications<br />

•Bone replacement<br />

•Drug delivery systems. (Diabetes, schizophrenia, osteoporosis)<br />

•Cutting tools<br />

•Wear resistant parts<br />

•Armor<br />

•Farm machinery (related to cutting and wear)<br />

•Automotive (Brakes, ball joints, hubs, coatings, weight reduction program)<br />

•Crack repair<br />

•Brazing<br />

•Coatings<br />

•Fire extinguishing<br />

9.4 A Historical Review of Space Instrument Technologies Developed by Routes<br />

AstroEngineering and Used to Support L&PS Scientific Mission Objectives<br />

B. Gordon, W.F (Tory) Payne, K. Smith, L. Piché, G. Barnes<br />

Routes AstroEngineering<br />

303 Legget Drive, Ottawa, Ontario, Canada K2K 2B1<br />

Since our inception in 1988, Routes AstroEngineering has supported Canadian Scientists in achieving their<br />

scientific research objectives in Life & Physical Sciences research by developing space science<br />

instrumentation ‘from Concept to Flight”. Routes AstroEngineering has been involved in the development<br />

of L&PS instruments designed to be flown on parabolic, shuttle, and ISS/MIR platforms. Some of the<br />

L&PS programs supported by Routes include: ARF-II, MIM-II, ATEN Furnace, Insect Habitat, Advanced<br />

Animal Habitat (Orbitec/NASA-Ames), PMDIS-TRAC, and IML-SPE. Each instrument, designed to<br />

operate in a microgravity environment, was tailored to meet the unique requirements of the science being<br />

investigated. Technologies employed included: Wide field-of-view optics, high-resolution/high-speed<br />

video imaging systems, near-lossless science data compression, environmental control systems<br />

(temperature, humidity, illumination, food exchange), fluid containment systems, programmable<br />

centrifuges, microgravity isolation mount design, high temperature furnace conceptual design, and adding<br />

touch-screen capability to the official ISS laptop.<br />

42


9.5 Canada’s Heritage and Experience with Operations and Hardware Development within the<br />

ISS Program<br />

Richard Rembala, Mike Daly, Nadeem Ghafoor<br />

MDA, 9445 Airport Road, Brampton, Ontario, Canada, L6S 4J3<br />

Tel: 905-790-2800 x4908, Fax: 905-790-4420<br />

E-mail: richard.rembala@mdacorporation.com<br />

Canada’s long-awaited 3 rd and final infrastructural contribution to the International Space Station (ISS) will<br />

be delivered in Spring 2008 with the launch of the Special Purpose Dextrous Manipulator (SPDM).<br />

Canadian participation on ISS will increasingly now include a utilization component, with opportunities for<br />

life and physical sciences research as well as technology demonstration and validation. The development,<br />

delivery and operation of hardware and experiments for the ISS however carries specific challenges unique<br />

to a manned spaceflight program. Fortunately this is an area of particular Canadian experience, and a clear<br />

opportunity exists to now combine the expertise gained from decades of infrastructure provision with the<br />

life and physical sciences research now being proposed for ISS utilization.<br />

Together with the Canadian Space Agency and the National Research Council of Canada, MDA has over<br />

twenty-five years of experience in space flight hardware production and real-time flight operations support<br />

to Shuttle (Canadarm) and ISS (Canadarm2) robotic operations, beginning with the second shuttle flight<br />

STS-2 back in 1981. In this capacity, Canadian engineering and management teams have become familiar<br />

with the challenges, hurdles and gates involved in designing, testing, and delivering hardware for flight<br />

onboard the International Space Station that satisfies NASA’s strict safety, reliability, material, and<br />

environmental requirements.<br />

From environmental testing at the David Florida Labs in Ottawa, to certifying hardware with the NASA<br />

Safety Panel at the Johnson Space Center, this paper will address the challenges Canada and MDA have<br />

faced and the experiences gained in developing space qualified hardware for both utilization within the<br />

habitable interior and on the unpressurized exterior of the ISS. Furthermore, the infrastructure and skills<br />

necessary for transitioning from the production phase to the operational/sustaining engineering phase of a<br />

hardware’s life-cycle will be discussed.<br />

9.6 Configurable Miniature Laboratory for Space Science and Materials Processing<br />

Roman V. Kruzelecky, Brian Wong, Jing Zou, Emile Haddad, and Wes Jamroz<br />

MPB Communications Inc., 151 Hymus Blvd., Pointe Claire, Quebec, Roman.Kruzelecky@mpbc.ca<br />

Space-based physical sciences generally require a suite of complementary measurements to study the<br />

evolution of the experiment or physical process. However, space-based instrumentation must also consider<br />

the mass and power penalties associated with launch costs. MPBC’s innovative approach to meeting the<br />

science measurement requirements while also minimizing the instrumentation mass and power is to employ<br />

advanced guided-wave and fiber-optic sensor technologies. This allows a suite of complementary miniature<br />

instruments to be accommodated within a typical international space station (ISS) mid-deck locker that can<br />

be configured to meet the monitoring requirements of a specific physical experiment.<br />

The MPBC suite of complementary miniaturized measurement technologies include MPBC’s patented<br />

IOSPEC technologies for high-performance guided-wave spectrometers and an array of leading-edge fiberoptic<br />

sensors and lasers. The optical sensing has the benefits of being immune to EMI and requires minimal<br />

consumables. The instrument suite can be configured to meet specific measurement requirements in the<br />

vapour, solid or gas phases.<br />

The core infrared (IR) spectral processor is based on MPBC’s IOSPEC technology for guided-wave<br />

spectrometers. This has been advanced to provide high performance comparable to large laboratory<br />

spectrometers but in a compact footprint weighing under 2.0 kg. The integration of the spectrometer optics<br />

using a low-loss IR waveguide structure provides robust optical alignment and facilitates optimization of<br />

the output focal plane and detector array coupling with minimal optomechanical components. The<br />

43


spectrometer employs a precision master grating micromachined in thin silicon that provides atomically<br />

smooth grading elements to provide a background signal scattering below 0.05% while affording a 4000<br />

nm broad spectral range of operation in first order diffraction with achievable spectral resolutions to below<br />

4 nm. Additional optical signal filtering can provide spectral resolutions below 0.05 nm FWHM for gasphase<br />

applications. Smart multichannel optical signal processing and dark signal compensation have been<br />

developed by MPBC for IR linear arrays that can provide over 60 dB of dynamic signal range to enable<br />

trace detection. Multiple spectrometers can be accommodated within a single ISS mid-deck locker,<br />

optimized for specific measurement tasks and spectral resolution requirements to provide substantial data<br />

synergy.<br />

The guided-wave spectrometer is being integrated with a bore-sight CMOS micro-imager as part of the<br />

development of a miniature instrument suite for planetary exploration and the requirements of the potential<br />

Inukshuk landed Mars mission. This provides the added capabilities of visual inspection of the sample, or<br />

process, in addition to the IR spectral analysis and the fiber-optic process-specific sensors.<br />

A low-power multichannel fiber-optic sensor system, Fiber Sensor Demonstrator (FSD), has been<br />

developed and ground-qualified towards a flight demonstration on ESA’s Proba-2. This provided the<br />

development and ground qualification of a tuneable fiber-laser and various fiber-optic sensors for<br />

distributed temperature and process pressure measurement. Sensor parallel and WDM serial multiplexing<br />

allows a large number of fiber-optic sensors to be operated from a single compact interrogation system. A<br />

low-power (< 3 W) microprocessor and 16 bit multichannel data acquisition system has also been<br />

developed for the FSD that has already undergone substantial ground qualification; including random<br />

vibration to 16.2 g rms and TVAC operation from –40 to +60 o C. This is currently being adapted to operate<br />

MPBC’s miniature IR spectrometer system and upgraded to include 4 Gigabytes of flash memory data<br />

storage with fault-tolerant management.<br />

Acknowledgements<br />

The authors would like to gratefully acknowledge the financial assistance of the Canadian Space Agency<br />

for aspects of this work.<br />

9.7 PCS: An Example of Collaboration between Engineers and Scientists<br />

Dr. Arthur E. Bailey<br />

Scitech Instruments Inc.<br />

North Vancouver, BC, Canada.<br />

Technology and engineering enable successful space science. The Physics of Colloids in Space (PCS)<br />

experiment operated successfully for eight months on the International Space Station. Although similar<br />

experiments flew several previous missions, PCS was the most successful. PCS benefited from the previous<br />

generations, but the final generation was significantly more sophisticated and flexible. Not only did the<br />

system require integration of a wide variety of technologies, but it yielded high quality scientific results<br />

because of the communication and cooperation of the engineering team with the science team. Clear<br />

examples of the technology, good design choices and teamwork during this project will be discussed.<br />

44


10 TECHNOLOGY DEVELOPMENT ABSTRACTS FOR ORAL<br />

PRESENTATIONS IN SPACE LIFE SCIENCES<br />

10.1 Advanced Miniature IR Spectral Processor for Remote Astronaut Health Diagnostics<br />

Roman V. Kruzelecky, Brian Wong, Jing Zou, and Wes Jamroz<br />

MPB Communications Inc., 151 Hymus Blvd., Pointe Claire, Quebec<br />

The detection and identification of molecular structures is a vital component of space exploration for<br />

atmospheric studies, planetary geology, and astrobiology. It is also an important requirement for manned<br />

missions in space for the monitoring of vital life-support systems (such as the air and recirculating water<br />

systems), detection of potential biohazards, as well as remote diagnosis of the astronaut’s health. The<br />

significant advantage of the Infrared (IR) spectral technique is that it can be used with minimal<br />

consumables to simultaneously detect a large variety of different chemical and biochemical species with<br />

high chemical specificity. IR-based analysis is founded upon the spectrum of IR absorption bands that are<br />

characteristic of the analyte itself. It is being increasingly used for clinical analysis of human serum and<br />

tissue. This has allowed quantization of glucose levels, cholesterol, total protein and other components of<br />

biological fluids. For remote astronaut health monitoring; a liquid analysis system can be used to monitor<br />

saliva and urine relatively unobtrusively to provide comprehensive medical diagnostics that are capable of<br />

detecting a wide range of potential medical problems. The science objectives are to validate a miniaturized<br />

suite of complementary spectral instruments with associated sample interface for biological fluids for<br />

remote uninvasive health monitoring and to use these capabilities to provide in situ studies of the effects of<br />

space and low gravity on human metabolisms.<br />

For space-based systems, the important drivers are reliability, power consumption, mass and simplicity of<br />

operation. A monolithically-integrated suite of miniature instruments is currently being developed for the<br />

Canadian Space Agency based on MPBC’s patented IOSPEC technologies for high-performance guidedwave<br />

spectrometers to enable laboratory-quality remote chemical and biochemical analysis. The<br />

application of this technology to provide a compact integrated lab of complimentary instruments for<br />

comprehensive biomedical analysis is discussed. As part of the experimental predevelopment of the<br />

miniature chemical analysis instrument suite, a laboratory test set up was prepared focusing on spectral<br />

measurements of a set of reference powdered and liquid samples. The complete system entails a miniature<br />

light source, signal collection optics, data processing electronics, and a fluid handling system.<br />

Microphotonic and MEMS technologies can play a role in the miniaturization of the various subsystems<br />

using microfluidic channels, optical waveguides and integrated-optic sensors. The diagnostic capabilities<br />

can be extended by combining IR spectroscopy with complementary IR Raman detection of C-C bonding<br />

and other IR inactive biomolecular vibrational modes.<br />

10.2 Rapid microbial DNA detection on compact disc: potential applications on spaceship<br />

Michel G. Bergeron<br />

Presented by Eric Leblanc<br />

The National Aeronautics and Space Administration (NASA) aims at establishing a presence on the moon<br />

as early as 2015 and sending humans to Mars by 2025. As astronauts begin to venture beyond low Earth<br />

orbit, the effective detection and treatment of infection in space will become a challenge which demands<br />

collaboration between multiple fields such as microbiology, pharmacology, chemistry and physics. Culturebased<br />

methods are not suitable for the detection of microbial cells onboard a spaceship. Current molecular<br />

assays run on bulky apparatus not compatible with limited space environments. Thus it would be desirable<br />

to develop a rapid and automated method that could detect infections directly from a biological specimen<br />

onboard a spaceship. Microfluidics technologies offer the possibility of detecting nucleic acids released by<br />

microorganisms on small compact devices.<br />

45


The Centre de Recherche en Infectiologie (CRI) of Université Laval in Québec City is developing an<br />

integrated, fully automated, affordable, and single-step portable microfluidic laboratory-on-a-compact disc<br />

(lab-CD) device for the rapid (


10.4 eOSTEO – Automated Closed Culture System for Study of Bone Cells in Microgravity<br />

Author: Lowell Misener, Chris Adamson, Dennis Sindrey<br />

Affiliation: Systems Technologies, Kingston Ontario<br />

The original OSTEO system was a turnkey cell culture and support system for use in terrestrial and<br />

microgravity experiments involving bone cell activity. The system was designed for short-term Shuttle<br />

experiments lasting approximately 10 days. The OSTEO system was successfully operated on STS-95 and<br />

STS-107 in which Canadian and European investigators used a synthetic bone substrate to study and<br />

quantify bone cell activity and evaluate potential anti-osteoporosis treatments.<br />

As a result of the tragic loss of the Shuttle Columbia and the desire to continue the support for the OSTEO<br />

science, the eOSTEO system was created as a fully automated version with specific customization for the<br />

unmanned Russion Foton satellite.<br />

The goal of this presentation will be the review and discussion of the system and system capabilities to<br />

conduct cell culture science in microgravity and on the bench. In addition, efforts responsible for the<br />

hardware development considering the interactive design and testing of the cell culture fluid pathway will<br />

be presented (OSTEO fluid pathway design “Grandfathered” for eOSTEO). This will also include a review<br />

of the recent performance on the Foton M3 satellite (Launched September 2007) and future considerations<br />

for more advanced science.<br />

10.5 Micropackaging technology of microbolometer FPA enabling the miniaturization of mid-IR<br />

instruments for space exploration missions<br />

S. Garcia-Blanco, P. Topart, L. Marchese, T. Pope, C. Alain, H. Jerominek<br />

INO, 2740 Einstein Street, Québec, Canada G1P 4S4<br />

INO has a large experience in the development of microbolometer FPA arrays for various types of space<br />

exploration missions. Under the current sponsorship of CSA, INO has developed a custom 512x3 pixel<br />

microbolometer detector array for satellite-based thermal imaging applications, including cloud and earth<br />

surface temperature monitoring and forest fire detection and monitoring. The detector array has been<br />

selected for the NIRST instrument on the SAC-D satellite. In addition, INO is currently developing a<br />

compact low-cost Earth horizon sensor based on their 256x1 pixel microbolometer detector array. The<br />

design has been optimized for use on small (nano) satellites in low Earth orbits.<br />

Reduced footprint, weight and power consumption are essential requirements for instruments to be<br />

incorporated in nano-satellites or exploration rovers. Those requirements are also important for instruments<br />

to be used in the ISS since the availability of space is limited.<br />

INO has recently developed a hermetic vacuum micropackaging technology for its microbolometer FPA<br />

that allows reducing the size of the package from 26x30x4 mm 3 to 10x10x2.5 mm 3 with the consequent<br />

reduction in weight from 12.8 g to 0.53 g. Combined with INO’s recent developments in micro-assembly of<br />

miniaturized optical and micro-optical components as well as its large experience in radiometric packaging,<br />

the micropackaging technology will enable the development of miniaturized instruments for multiple space<br />

applications for which footprint and weight are issues. Such applications include mid-IR spectral analyses<br />

both for health monitoring and physical exploration, thermal imaging and radiometric measurements.<br />

Acknowledgements: INO would like to thank ESA for initiating the 512x3 pixel microbolometer detector<br />

array development and CSA for its continuous support leading to space prototype.<br />

47


10.6 INO’s Micro-Flow Cytometer and other Optics and Photonics Technologies for Space<br />

Marcia L. Vernon, Biophotonics Program Manager<br />

INO<br />

2740, rue Einstein, Québec, Qc<br />

Canada G1T 1P4<br />

Tel:418-657-7006; Fax:418-657-7009<br />

marcia.vernon@ino.ca<br />

INO is a world-class R&D centre specialising in optics and photonics solutions for Canadian industry.<br />

INO’s expertise covers the full spectrum of optics and photonics technologies including lasers, fibre optic<br />

sensors, microfabrication, specialty fibre optics, LIDAR and biophotonics. These have been developed into<br />

components, subsystems and systems for space applications, for example, micromachined infrared<br />

detectors for earth and planetary observation, a radiation-hardened optical fibre and a fibre amplifier for<br />

integration into an OISL. In addition to an overview of INO’s technological offer, this presentation will<br />

discuss our proposed development of a miniaturised flow cytometer combining micro-optics and our fibrebased<br />

flow cytometer.<br />

The development of a micro-flow cytometer with the characteristics needed for space flight (low power<br />

consumption, small footprint) combined with the low cost of optical fibres and microfabrication will have<br />

great impact in point-of-care diagnostics, diagnostics facilities in remote areas and resource-poor countries<br />

and in-situ environmental monitoring.<br />

INO’s fibre optic flow cytometer uses an optical fibre that has been micro-machined to permit counting of<br />

particles and has been demonstrated for counting live bacteria in a mixture of live and dead bacteria.<br />

The flow cytometer platform will be miniaturized by being brought onto a micromachined bench—an<br />

integration platform for passive and active components in much the same way that an optical table is but on<br />

the millimetric scale. The developmental work will be based on the micromachining processes developed at<br />

INO for miniaturized systems with an overall device dimension on the order of tens of millimetres.<br />

48


11 TECHNOLOGY DEVELOPMENT ABSTRACTS FOR POSTER<br />

PRESENTATION IN SPACE PHYSICAL SCIENCES<br />

11.1 The Vibration Environment on Spacecraft and Development of Isolation Technology for the<br />

ISS<br />

Bjarni Tryggvason<br />

Visiting Professor, University of Western Ontario<br />

Canadian Space Agency<br />

Space offers the potential for a disturbance free nearly free-fall environment. However, conditions on<br />

spacecraft in low Earth orbit are not completely ideal. At low frequencies several sources lead to quasistatic<br />

departure that leave residual acceleration of the order of micro-g. While this seems a very small<br />

disturbance level, it acts over long time periods and can and does generate flows in liquids and gases that<br />

are noticeable at the time and spatial scales of many experiments done on spacecraft. At higher frequencies<br />

the vibration environment is of the order of milli-g, not micro-g. This again can represent significant<br />

disturbances for many experiments, particularly those where small scales are important, such as in<br />

diffusion. The vibration isolation technology developed through the CSA can mitigate the effect of these<br />

higher frequency disturbances. Some of the previous effort here will be summarized and current effort<br />

under way at the University of Western Ontario will be described.<br />

11.2 An Overview of Past, Present, and Future Canadian Microgravity Vibration Isolation Mount<br />

Technology<br />

Authors: Derrick Piontek 1 , Jean de Carufel 1 , Melanie Mailloux 2<br />

1 Bristol Aerospace Limited / Magellan Aerospace Corporation, Ottawa, Ontario, Canada<br />

2 Canadian Space Agency, St-Hubert, Québec, Canada<br />

The Canadian Space Agency’s (CSA) Microgravity Vibration Isolation Mount (MIM) technology,<br />

designed to actively isolate experiments from the high frequency (


payloads under consideration including ATEN, a materials science furnace and PROSPECT, a protein<br />

crystal growth facility.<br />

This poster will highlight the past and current MIM technologies, as well as future generations of the<br />

technology currently under consideration by the CSA.<br />

11.3 Diagnostics Using a Confocal Holography Microscope for Three-Dimensional Temperature<br />

and Compositional Measurements of Fluids in Microgravity<br />

P. Jacquemin, P. Marthandam, B. Sawicki and R.A. Herring<br />

University of Victoria, Department of Mechanical Engineering,<br />

PO Box 3055 STN CSC, Victoria, British Columbia, V8W-3P6<br />

A Confocal Scanning Laser Holography (CSLH) microscope has been developed for the studies of fluids in<br />

microgravity. This microscope generates a hologram for each three-dimensional point describing an object,<br />

or fluid in a cell, and offers a new, non-intrusive means to determine the three-dimensional temperature and<br />

composition, which is useful information for heat and mass transfer studies. The holograms are created<br />

from the interference of a “known” reference beam to an “unknown” object beam, which contains the phase<br />

information from which the object’s index of refraction is determined. The key feature of the microscope<br />

for microgravity experimentation is that the object remains stationary as the beam is rastered through the<br />

object ensuring a quiescent environment. Additionally, only one observation window that provides a<br />

limited view of the fluid cell is necessary to obtain a three-dimensional measurement, whereas, other<br />

comparable methods such as tomography and laminography require a large angular field of view. Vibration<br />

disturbances due to the motion of optical components are minimized by applying counter balances and by<br />

using the Motion-vibration Isolation System (MIM).<br />

Many designs of a CSLH microscope are possible and are typically experiment specific. Possible designs<br />

can be found in the publications provided below [1, 2]. Retrieval of the specimen information is made<br />

possible by the modern computer, which has enabled large data files representing the holograms to be<br />

processed rapidly for their reconstruction and proper three-dimensional registry. As well, specific hologram<br />

reconstruction methods for CSLH have been developed to reduce reconstruction error and maximize<br />

information of the specimen [3, 4].<br />

Jacquemin, P., R. McLeod, S. Lai, D. Laurin, and R.A. Herring, “Non-Intrusive, Three-Dimensonal<br />

Temperature and Composition Measurements inside Fluid-Cells in Microgravity using a Confocal<br />

Holography Microscope,” Asta Astronautica 60 (2007) pp. 723 – 727.<br />

Jacquemin, P., R. McLeod, D. Laurin, S. Lai, and R.A. Herring, “Design of a Confocal Holography<br />

Microscope for Three-Dimensional Temperature and Compositional Measurements of Fluids in<br />

Microgravity,” J. of Microgravity Sciences & Technology Vol XVII-4 (2006) pp. 36-40.<br />

Lai, S., R.A. McLeod, P. Jacquemin, S. Atalick, and R.A. Herring, “An Algorithm for 3-D Refractive Index<br />

Measurement in Holographic Confocal Microscopy,” Ultramicroscopy 107 (2007) pp. 196-201.<br />

Jacquemin, P., and R.A. Herring, “A Low Error Reconstruction Method for Confocal Holography and<br />

Limited View Tomography to Determine 3-Dimensional Properties,” Microsc Microanalysis 13 (2007)<br />

Suppl 2, 1228 CD.<br />

50


11.4 ARTEC Technologies<br />

Jean-Paul Thiéblot<br />

Project manager/Structural dynamics<br />

Artec Technologies<br />

535, Curé Boivin, Boisbriand (Québec) Canada,<br />

Composite structures like thin and thick composite shells are now commonly used on satellite structures.<br />

Such components are lightweight, stiff and resistant, but do not provide adequate sound isolation or<br />

vibration damping. High vibration levels are reduced in conformity with incoming vibration requirements<br />

during launch. However, present knowledge in vibration damping does not adequately address the question<br />

of composite material damping.<br />

Discrete damping visco-elastic elements can be:<br />

Embedded at the honeycomb level within standard composite panels (thick shell) to produce damping.<br />

Added at the level of structure stiffeners.<br />

Such treatments have proved to be efficient for damping of metallic structures, and this know-how has<br />

been adapted to composite structures.<br />

This technology developed by ARTEC Technologies allows:<br />

reducing vibration levels in composite materials<br />

reducing the structural fatigue<br />

saving mass and costs.<br />

Present contract: CSA/ESA contract “Damping of RLV composite structure”<br />

Results of technology: attenuation 10 dB<br />

11.5 A New Multifunctional Space Simulator for Accelerated Ground-Based Testing of Spacecraft<br />

Materials and Structures Intended for Space Exploration Missions<br />

J. Kleiman, S. Horodetsky, V. Issoupov, Z. Iskanderova<br />

Integrity Testing Laboratory Inc., 80 Esna Park Drive, Units #7-9,<br />

Markham, ON, L3R 2R7, e-mail: jkleiman@itlinc.com<br />

A new ground-based facility concept is introduced to provide for reliable, accelerated multi-environmental<br />

laboratory testing of spacecraft materials, systems and components in the simulated LEO, GEO and HEO<br />

space environments, as well as environmental conditions of other planets. The proposed concept of the<br />

multifunctional simulator facility is based on the successfully manufactured Multifunctional Variable<br />

Energy Environmental Simulator (VEMES TM ) [1] and includes three stainless steel ultra-high vacuum<br />

chambers interconnected via a sample-transfer system and an air lock chamber. Each simulation chamber is<br />

manufactured in the form of a hemisphere with individual vacuum pumping system, with the chambers<br />

being separated by swing gates.<br />

The first chamber is used to expose the test samples to combined or individual influence of ultra-high<br />

vacuum conditions, variable-energy neutral atomic beams, variable-wavelength UV radiation, thermal<br />

conditioning and thermal cycling in a wide range of temperatures. The simulated space environmental<br />

conditions are controlled in-situ using a quadruple mass-spectrometer, time-of-flight spectrometer, quartz<br />

crystal microbalance, atomic (optical) emission spectrometer and IR pyrometer.<br />

There GEO and HEO space environments, the interplanetary environment and planetary conditions of<br />

Moon, Mars, Venus and/or other planetary bodies can be simulated in the second chamber equipped with<br />

variable-energy charged particle sources simulating the equivalent space radiation effects, as well as with<br />

sources of rocket’s exhaust contaminations and accelerated dust particles.<br />

51


The third analytical chamber implements modern analytical equipment (SEM, AES/XPS, IR/Visible/UV<br />

spectrophotometers and mechanical properties analyzer) for comprehensive in-situ characterization of the<br />

test samples after simulation exposure. The proposed unique multifunctional space simulator is fully<br />

computer-controlled and is operated by powerful computer software implementing the physical models of<br />

various space environments.<br />

1. J. Kleiman, S. Horodetsky, V. Sergeyev, V. Issoupov, “CO 2 -laser assisted atomic oxygen beam sources:<br />

research, development and optimization of operational parameters”, in proceedings of: 8 th International<br />

Space Conference ICPMSE-8, 19-23 June, 2006, Colliuore, France, CD format, Publisher European Space<br />

Agency, 2006<br />

11.6 A Novel Approach for Non-Destructive Mapping of Structural and Mechanical Properties of<br />

Moon and Mars Soils<br />

E. Litovsky, V. Issoupov, Z. Iskanderova, J. Kleiman<br />

Integrity Testing Laboratory Inc., 80 Esna Park Drive, Units #7-9,<br />

Markham, ON, L3R 2R7, e-mail: elitovsky@itlinc.com<br />

The major objective of the suggested approach is to develop and demonstrate in a relevant planetary<br />

environment a new methodology and instrumentation for non-destructive thermal diagnostics of the<br />

structure (porosity, particle’s contact area) and mechanical properties (strength, modulus of elasticity) of<br />

the subsurface layers of planetary soils on planets with rarefied atmospheres, first of all, those of Moon and<br />

Mars. The methodology is based on specially tailored temperature measurements using specific thermal<br />

sensors mounted on the planetary rovers or located on orbiting satellites or spacecraft.<br />

Using a similar methodology and radio-astronomical temperature measurements, properties of selected<br />

regions on the Moon were predicted and later confirmed during unmanned and manned expeditions in<br />

USSR and USA. The structure forecasting method provided good results when the lunar surface was<br />

studied with the purpose to design the first lunar soft-landing rover.<br />

The main innovations of the suggested work could be summarized as follows:<br />

A non-destructive thermal diagnostics approach for mapping of thermo-physical and mechanical properties,<br />

as well as porous structure of Moon and Mars soils within a depth of 0.03-3 m;<br />

Advanced mathematical models for evaluation of thermal response and thermal conductivity based on<br />

contact or remote elaborated measurements of the daily and seasonal surface temperature variations of the<br />

planets;<br />

New instrumentation for non-destructive diagnostics of thermophysical properties, porous structure and<br />

mechanical properties of layers. The sensors will use both natural (passive sensor) and heating source<br />

induced (active sensor) temperature changes.<br />

The suggested approach will include laboratory testing, building and validation of the mathematical models<br />

and basic correlations, as well as verification of the developed instrumentation in the relevant planetary<br />

environments.<br />

11.7 Extended Interaction Klystrons for Communications, Topographical Mapping and Remote<br />

Sensing Applications<br />

Brian Steer<br />

Communications and Power Industries Canada<br />

Georgetown, Ontario, Canada<br />

Brian.Steer@cmp.cpii.com<br />

Various space missions require state-of-the art sensor and communications systems that enable accurate<br />

measurements of Earth precipitation, precision mapping of the planets and moons, and remote sensing of an<br />

atmospheric aerosols and then to return the information back to Earth. These sensors and systems operate at<br />

52


millimeter and sub-millimeter wavelengths and require pulse or CW power from a few watts to several<br />

hundred watts.<br />

Starting in 1990 CPI Canada developed an Extended Interaction Klystron for space-borne radar systems.<br />

The first W-band (94 GHz) space qualified EIK was developed for NASA’s CloudSat mission. The<br />

CloudSat mission provides cross-sectional view of clouds with information on their thickness, altitude,<br />

optical properties, water and ice content. The EIK provides RF signals with peak power of 2 kW and has<br />

been operating in orbit since 2 June 2006.<br />

Recently CPI had completed first phase development of the EIK that will be used as a high power Radio<br />

Frequency transmitter for the High Capability Instruments for Planetary Exploration Topo-mapper Radar.<br />

This EIK will operate at 35 GHz and provide peak power of 3 kW with the duty cycle up to 30%.<br />

Another area of interest is the development of the high power sub-millimeter sources for remote sensing of<br />

atmospheric particles. High radar resolution is achieved by operation at 220-280 GHz with output power of<br />

hundred Watts. Table below summarizes EIK developments for space-borne applications.<br />

Mission<br />

ACE<br />

EGPM<br />

JIMO<br />

Mission<br />

Phase<br />

Proposed/<br />

Feasibility<br />

On hold<br />

Feasibility<br />

Instrument EIK specification Agency EIK Development Status<br />

Dual frequency<br />

doppler crosstrack<br />

scanning<br />

Radar<br />

Precipitation<br />

Radar<br />

Topo-Mapping<br />

Radar<br />

WatER Proposed Radar Altimeter<br />

ATOMS<br />

COREH20<br />

WAVE<br />

Feasibility<br />

Proposed/<br />

Feasibility<br />

Proposed/<br />

Feasibility<br />

Active<br />

Atmospheric<br />

Sounder<br />

Dual frequency<br />

SAR<br />

Snow & Ice<br />

Satcom<br />

Downlink<br />

35.5 / 94 GHz<br />

Pulsed amplifiers<br />

35.5 GHz 1 kW<br />

Pulsed amplifier<br />

35.5 GHz 3 kW<br />

Pulsed amplifier<br />

35 GHz 1.5 kW<br />

Pulsed amplifier<br />

183 GHz 5 W CW<br />

oscillator<br />

9.6 / 17.2 GHz<br />

Pulsed amplifiers<br />

72 / 73 GHz<br />

13W CW<br />

amplifier<br />

NASA<br />

ESA<br />

NASA<br />

NASA/ESA<br />

NASA<br />

ESA<br />

ESA<br />

Requirements Review<br />

EM1 development complete<br />

Development of high power<br />

compact collector complete<br />

Development proposed to<br />

CSA under STDP program<br />

EM1 developed and<br />

delivered to JPL<br />

17.2 GHz device study<br />

EM Proposal for<br />

Italian Space Agency<br />

This poster will explore the capability of CPI’s EIK technology in relation to the applications described<br />

above.<br />

11.8 Étude de l’influence des Perturbations Orbitales sur la Trajectoire des Satellites Défilants<br />

Wassila Leila RAHAL – Noureddine BENABADJI – Ahmed Hafid BELBACHIR<br />

Université de Sciences et de la Technologie d’Oran U.S.T.O.M.B<br />

Laboratoire d’Analyse et d’Application du Rayonnement – LAAR<br />

Afin de réaliser une poursuite automatique des satellites, il est nécessaire de faire au préalable une<br />

prévision de passage dés que le satellite est visible depuis la station (ce qu’on appelle AOS : Acquisition of<br />

Signal) et de pouvoir suivre en temps réel sa trajectoire ( en site et en azimut), jusqu’à la disparition du<br />

signal (LOS) pour une réception optimale des images satellitales.<br />

La prévision est régit par la loi gravitationnelle et en particulier les lois de Kepler. Cependant, le champ de<br />

gravité terrestre n’est pas idéalement de symétrie sphérique, il existe donc des déviations générées pas les<br />

perturbations suivantes :<br />

53


• Forces d’attraction dues aux irrégularités de la distribution de la masse terrestre (aplatissement aux<br />

pôles, masse de l’hémisphère sud plus importante que celle de l’hémisphère nord).<br />

• Forces d’attractions de la lune et du soleil.<br />

• Forces de freinage dues au frottement atmosphérique, surtout pour les satellites à basse orbite<br />

comme les satellites NOAA.<br />

• Pression des radiations solaires.<br />

Nous avons modélisé et pris en compte toutes ces perturbations lors de l’élaboration d’un logiciel de<br />

prévision, qui nous permettra de connaître à l’avance l’heure et la position à laquelle n’importe quel<br />

satellite défilant sera visible à partir d’un point fixe au sol.<br />

54


12 WORKSHOP PARTICIPANT LIST<br />

Title Given name Surname Job title Company or institution E-mail<br />

Universities<br />

Dr. Robert Allison Associate York University allison@cse.yorku.ca<br />

Professor<br />

Dr. Albert Berghuis Professor McGill University albert.berghuis@mcgill.ca<br />

Dr. Anne Camirand Senior Lady Davis Institute, anne.camirand@mail.mcgill.ca<br />

Research McGill University<br />

Mr. Marc Charest PhD University of Toronto charest@utias.utoronto.ca<br />

Candidate<br />

Dr. Sadik Dost Professor University of Victoria sdost@me.uvic.ca<br />

Dr Robert Dumaine Directeur Université de Sherbrooke robert.dumaine@usherbrooke.ca<br />

Mr. Ian Dunkley Ph.D. Student Queen's University dunkley@me.queensu.ca<br />

Dr. Richard Dyde Post Doctoral York University dyde@hpl.cvr.yorku.ca<br />

Fellow<br />

Mr. Chris Erven PhD Graduate University of Waterloo cerven@iqc.ca<br />

Student<br />

Dr. Carlos Fernandes Research University of Toronto carl@ecf.utoronto.ca<br />

Associate<br />

Dr. Clinton Groth Associate University of Toronto groth@utias.utoronto.ca<br />

Professor<br />

Dr. Omer Gulder Professor University of Toronto ogulder@utias.utoronto.ca<br />

Dr. Laurence Harris Professor York University harris@yorku.ca<br />

Dr. Bart Hazes Assistant University of Alberta Bart.Hazes@Ualberta.ca<br />

Professor<br />

Dr. Hani Henein Professor University of Alberta hani.henein@ualberta.ca<br />

Dr. Andrew Higgins Associate McGill University andrew.higgins@mcgill.ca<br />

Professor<br />

M Bruno Hogue étudiant M.Sc. Université de Sherbrooke bruno.hogue@usherbrooke.ca<br />

physiologie<br />

Dr. Richard Hughson Professor University of Waterloo hughson@uwaterloo.ca<br />

M<br />

Karl-<br />

Alexandre<br />

Jahjah<br />

Étudiant à la<br />

maîtrise en<br />

physique<br />

Université Laval<br />

karlalexandre.jahjah.1@ulaval.ca<br />

Dr. Michael Jenkin Professor York University jenkin@cse.yorku.ca<br />

Dr. Heather Jenkin Associate York University hjenkin@yorku.ca<br />

Professor<br />

(Sessional)<br />

M Abd Elhakim Kara Student University of 20 August kara_kim72@hotmail.com<br />

Skikda<br />

Dr. Masahiro Kawaji Professor University of Toronto kawaji@ecf.utoronto.ca<br />

Dr. Olha Kos Postdoc<br />

Fellow,<br />

Transplant<br />

research<br />

Dr Daniel Labrie Associate<br />

Professor<br />

Toronto General<br />

Hospital<br />

Dalhousie University<br />

olhakos@web.de<br />

daniel.labrie@dal.ca<br />

55


Dr Éric Leblanc Chef de Centre de Recherche en eric.leblanc@crchul.ulaval.ca<br />

Projets Infectiologie<br />

M. Jean-Claude Leclerc Étudiant Université Laval jean-claude.leclerc.1@ulaval.ca<br />

Dr. Sheng-Xiang Lin Professor Laval University and sxlin@crchul.ulaval.ca<br />

CHUL research Center<br />

Dr. Brian Lowry Professor University of New bjl@unb.ca<br />

Brunswick<br />

Dr Jean- Joyal Intensive Care Hopital Sainte-Justine js.joyal@umontreal.ca<br />

Sébastien<br />

Physician &<br />

Researcher<br />

Dr. Mark MacLachlan Professor University of British mmaclach@chem.ubc.ca<br />

Columbia<br />

Ms. Heather-Jean May MScE student University of New h-j.may@unb.ca<br />

Brunswick<br />

Mr. Tooru Mizuno Assistant University of Manitoba mizunot@cc.umanitoba.ca<br />

Professor<br />

Dr. David Needham Professor Duke University d.needham@duke.edu<br />

Mr. Agostino Pietrangelo Graduate University of Britsh apietran@chem.ubc.ca<br />

Student Columbia<br />

Dr. Nikolas Provatas Professor McMaster University provata@mcmaster.ca<br />

Dr Claude Rioux Professionnel Université Laval Claude.Rioux@phy.ulaval.ca<br />

de recherche<br />

Dr. Ziad Saghir Professeur Ryerson University zsaghir@ryerson.ca<br />

Dr. Rodney Savidge Professor University of New savi@unb.ca<br />

Brunswick<br />

Dr. Paul Scott Research Queen's University pjs7@queensu.ca<br />

Associate<br />

Dr R J Slobodrian Professeur Université Laval rjslobod@phy.ulaval.ca<br />

Dr. Frank Smith Associate<br />

Professor<br />

Dept of Anatomy and<br />

Neurobiology, Dalhousie<br />

University<br />

University of Victoria<br />

fsmith@tupdean2.med.dal.ca<br />

Dr. Henning Struchtrup Associate<br />

struchtr@uvic.ca<br />

Professor<br />

Dr. Jurgen Sygusch Professor Université de Montréal jurgen.sygusch@umontreal.ca<br />

M. Francois-<br />

David<br />

Tang Étudiant Université McGill,<br />

département de génie<br />

mécanique<br />

francoisdavid.tang@mail.mcgill.ca<br />

Dr. Guy Trudel Professor Ottawa University gtrudel@Ottawahospital.on.ca<br />

Dr. Bjarni Tryggvason Visiting University of Western btryggvason@eng.uwo.ca<br />

Professor Ontario<br />

Dr. Charles Ward Professor University of Toronto ward@mie.utoronto.ca<br />

Dr. Gregor Weihs Associate University of Waterloo weihs@iqc.ca<br />

Professor<br />

Dr. Michael Wolf Professor University of British mwolf@chem.ubc.ca<br />

Columbia<br />

M. Romanesky Yvanho Université Laval yvanho.romanesky@cgocable.ca<br />

Mr. James Zacher Research<br />

Associate<br />

York University<br />

zacher@cvr.yorku.ca<br />

56


Companies<br />

Mr. Nicolae Alecu VP Aerospace & Parallel Geometry Inc. nicolae.alecu@llgeometry.com<br />

Defense<br />

Programs<br />

Dr. Arthur Bailey Senior Scientist Scitech Instruments, abailey@scitechinstruments.ca<br />

Inc.<br />

Mr. William Payne Director of Routes<br />

t_payne@routes.com<br />

Engineering AstroEngineering<br />

Mr. Stephen Churchill Senior Manager C-CORE stephen.churchill@c-core.ca<br />

Ms. Maryellen Cronin Deputy<br />

Commanding<br />

Officer<br />

Mr. Ron Davidson Director Space<br />

Operations<br />

Dr. Jean De Carufel Senior Control<br />

Systems<br />

Engineer<br />

51 Aerospace Control<br />

and Warning Sqn, 22<br />

Wing North Bay<br />

Guigne International<br />

Ltd<br />

Magellan Aerospace<br />

Corporation / Bristol<br />

Aerospace Limited<br />

Cronin.M2@forces.gc.ca<br />

rdavidson@airtab.com<br />

jean.decarufel@magellan.aero<br />

Dr. My Ali EL KHAKANI Professor INRS-EMT elkhakani@emt.inrs.ca<br />

Mr. Jeremie Farret CTO Parallel Geometry Inc. jeremie.farret@llgeometry.com<br />

Dr Martin Gagnon Chiropraticien Centre chiropratique drgagnondc@sympatico.ca<br />

Chambly<br />

Dr Sonia Garcia Blanco Chercheur INO sonia.garcia.blanco@ino.ca<br />

Mr. Terry Girard Business<br />

Development<br />

Manager<br />

COM DEV Ltd terry.girard@comdev.ca<br />

Mr. Blair Gordon Director - Routes<br />

b_gordon@routes.com<br />

Programs AstroEngineering<br />

Dr. Emile Haddad Project Manager MPB Communications emile.haddad@mpbc.ca<br />

Dr. D'Arcy Hart Senior Scientist C-CORE darcy.hart@c-core.ca<br />

Mr. Ruediger Hartwich Project Manager<br />

Life Science<br />

Facilities<br />

Astrium Space<br />

Transportation<br />

Dr. Vitali Issoupov Research<br />

Scientist<br />

Integrity Testing<br />

Laboratory Inc.<br />

Dr. Qi KANG Professor National Microgravity<br />

Laboratory, Institute of<br />

Mechanics, Chinese<br />

Academy of Sciences<br />

ruediger.hartwich@astrium.eads.<br />

net<br />

vissoupov@itlinc.com<br />

kq@imech.ac.cn<br />

Dr. Alexandre Khananian Research PHB/Lasermap alexandrek@groupphb.com<br />

Scientist<br />

Dr. Jacob Kleiman President and Integrity Testing jkleiman@itlinc.com<br />

R&D Director Laboratory, Inc.<br />

Dr. Roman Kruzelecky Senior Research MPB Communications roman.kruzelecky@mpbc.ca<br />

Scientist<br />

Dr. Efim Litovsky Head of Integrity Testing elitovsky@itlinc.com<br />

Thermophysical Laboratory Inc.<br />

Division<br />

Mr. Michael Labib ADCS Engineer Bristol Aerospace<br />

Limited/Magellan<br />

Mr. Joel May System Atlantic Nuclear<br />

Specialist Services Ltd.<br />

michael.labib@magellan.aero<br />

jmay@ansl.ca<br />

57


Mr. David McCabe Manager,<br />

Ottawa Office<br />

Magellan Aerospace<br />

Corporation / Bristol<br />

Aerospace Limited<br />

david.mccabe@magellan.aero<br />

Mr. Lowell Misener President Systems Technologies lowell@systemstechnologies.ca<br />

M Bruno Murray President Narhval Systems Inc. bmurray.narhval@qc.aira.com<br />

Dr. Gunnar K. A. NJALSSON CEO SPACEPOL njalsson@spacepol.ca<br />

Government Policy<br />

Consulting<br />

Dr. Hamideh Parizi Vice President Simulent Inc. parizi@simulent.com<br />

Mr. Derrick Piontek Systems<br />

Engineer<br />

Magellan Aerospace<br />

Corporation / Bristol<br />

Aerospace Limited<br />

derrick.piontek@magellan.aero<br />

Dr. Richard Rembala MDA Corporation richard.rembala@mdacorporatio<br />

n.com<br />

Mme Raymonde Rondeau retraitée Bac philosophie rayriopel@distributel.net<br />

Riopel<br />

Université de Montréal<br />

Dr. Jean-Francois Rotge President &<br />

CSO<br />

Parallel Geometry Inc. jeanfrancois.rotge@llgeometry.com<br />

Mr. Dennis Sindrey Director<br />

Biology,<br />

Consulting to System<br />

Technologies<br />

d.sindrey@sympatico.ca<br />

Scientific Lead<br />

Mr. Brian Steer Business<br />

Development<br />

Manager<br />

M. Jean-Paul Tiéblot Project<br />

manager/<br />

Structural<br />

dynamics<br />

M Daniel Tremblay Recherche et<br />

Développement<br />

technologique<br />

Ms. Marcia Vernon Program<br />

Manager,<br />

Biophotonics<br />

Agency<br />

Dr. Jacob Cohen Program<br />

Executive,<br />

Advanced<br />

Capabilities<br />

Dr. Jitendra Joshi Chief<br />

Technology<br />

Advisor,<br />

Advanced<br />

Capabilities Div<br />

Dr. Fred Kohl ISS Research<br />

Dr. Olivier Minster Head of<br />

Physical<br />

Sciences Unit<br />

Mr. Antonio Verga Technical<br />

Officer for<br />

ESA’s payload<br />

ESTEC<br />

CPI Canada<br />

Artec Technologies<br />

TéléMédic, Relab<br />

INO<br />

NASA<br />

ESMD, NASA HQ<br />

brian.steer@cmp.cpii.com<br />

jp.thieblot@artec-spadd.com<br />

danielt@telemedic.ca<br />

marcia.vernon@ino.ca<br />

jacob.cohen-1@nasa.gov<br />

jitendra.a.joshi@nasa.gov<br />

NASA Glenn Research Fred.J.Kohl@grc.nasa.gov<br />

Project Manager Center<br />

European Space Olivier.Minster@esa.int<br />

Agency<br />

FOTON Office ESA<br />

antonio.verga@esa.int<br />

58


Mr. Martin Zell Head of<br />

Research<br />

Operations<br />

Department<br />

CSA-LPS workshop<br />

Dr. Nicole Buckley Director, Life<br />

and Physical<br />

Sciences<br />

Dr. Luchino Cohen Program<br />

Scientist<br />

Ms. St-Jean Danièle Life and<br />

Physical<br />

Sciences<br />

Dr Marcus DEJMEK Scientifique de<br />

Programme<br />

ESA<br />

CSA<br />

CSA<br />

CSA<br />

ASC<br />

martin.zell@esa.int<br />

nicole.buckley@space.ca<br />

Luchino.cohen@space.ca<br />

Daniele.saint-jean@space.gc.ca<br />

marcus.dejmek@space.gc.ca<br />

Ms. Perron Diane Life and CSA<br />

Diane.perron@space.gc.ca<br />

Physical<br />

Sciences<br />

Mrs. Minodora Iordan Life and CSA<br />

minodora.iordan@space.ca<br />

Physical<br />

Sciences<br />

Dr. Perry Johnson-Green Senior Program CSA<br />

perry.johnson-green@space.ca<br />

Scientist<br />

CSA participants<br />

M. Louis-Paul Bédard Ingénieurphysicien<br />

<strong>Agence</strong> Spatiale Louis-Paul.Bedard@space.gc.ca<br />

(Planificateur de<br />

mission)<br />

Canadienne<br />

M. Claude Brunet Ingénieur ASC claude.brunet@space.gc.ca<br />

Mme Joanie Carrier Étudiante ASC joanie.carrier@space.gc.ca<br />

Mme Sylvie Desmarais Analyste ASC<br />

sylvie.desmarais@space.gc.ca<br />

principale<br />

M Bastien Dufour Program Lead, ASC<br />

bastien.dufour@space.gc.ca<br />

Physical<br />

Sciences<br />

Dr Stéphane Gendron Ingénieur en ASC<br />

stephane.gendron@space.gc.ca<br />

matériaux et<br />

thermique<br />

Dr. Leo Hartman Research Canadian Space leo.hartman@space.gc.ca<br />

scientist<br />

Mrs. Isabelle Jean Payloads<br />

operation and<br />

integration<br />

Agency<br />

CSA<br />

Ms. Angela Johnson Student CSA (University of<br />

Victoria)<br />

Dr. Pierre Langlois MSS SW CSA<br />

Engineer<br />

M Steve Lauwaet Étudiant / École Polytechnique de<br />

Stagiaire Montréal / <strong>Agence</strong><br />

M Frédérick Mathieu Étudiant<br />

stagiaire<br />

Spatiale Canadienne<br />

<strong>Agence</strong> <strong>spatiale</strong><br />

<strong>canadienne</strong><br />

isabelle.jean@space.gc.ca<br />

angela.johnson@space.gc.ca<br />

pierre.langlois@space.gc.ca<br />

Steve.Lauwaet@space.gc.ca<br />

frederick.mathieu@space.gc.ca<br />

59


Dr Benoit Palmieri Checheur<br />

postdoctoral<br />

M Walter Peruzzini Gestionnaire de<br />

Programme<br />

Dr. Jean-Claude Piedboeuf Head<br />

Technology<br />

Requirement<br />

and Planning<br />

M. Daniel Provencal Mission<br />

Manager<br />

M José Miguel RAMIREZ SCT satellite<br />

control<br />

technician<br />

M Marla Smithwick Logistics<br />

Officer/Project<br />

Manager<br />

Ms. Taryn Tomlinson Robotics<br />

Engineer<br />

Dr. George Vukovich Director<br />

Spacecraft<br />

Engineering<br />

<strong>Agence</strong> Spatiale<br />

Canadienne<br />

<strong>Agence</strong> <strong>spatiale</strong><br />

<strong>canadienne</strong><br />

Canadian Space<br />

Agency<br />

CSA<br />

SED Systems<br />

CSA<br />

Canadian Space<br />

Agency<br />

CSA<br />

benoit.palmieri@space.gc.ca<br />

walter.peruzzini@space.gc.ca<br />

jeanclaude.piedboeuf@space.gc.ca<br />

daniel.provencal@space.gc.ca<br />

josemiguel.ramirez@space.gc.ca<br />

marla.smithwick@space.gc.ca<br />

taryn.tomlinson@space.gc.ca<br />

george.vukovich@space.gc.ca<br />

60

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