PROGRAM - Agence spatiale canadienne
PROGRAM - Agence spatiale canadienne
PROGRAM - Agence spatiale canadienne
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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 />
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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 />
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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 />
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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 />
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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 />
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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