Scientific and Technical Aerospace Reports Volume 38 July 28, 2000

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60 31 ENGINEERING (GENERAL) �� 20000061422 Air Force Research Lab., Wright-Patterson AFB, OH USA The Multidisciplinary Engineer in the Context of Concurrent Engineering Moorhouse, David J., Air Force Research Lab., USA; Aerodynamic Design and Optimisation of Flight Vehicles in a Concurrent Multi-Disciplinary Environment; June 2000, pp. 3-1 - 3-7; In English; See also 20000061419; Copyright Waived; Avail: CASI; A02, Hardcopy Throughout the evolution of the design of flight vehicles, the role of the individual engineer has also evolved. As aircraft have become more complex and performance envelopes have become ever larger, the role of the technical specialist has diminished in favor of the design team approach. Although the theme of the symposium deals with aerodynamic design and optimization, many comments apply to all technical disciplines. In this paper we review this design evolution very briefly. It is suggested that the evolutionary design process led to independent technical disciplines, technology development along the same lines and finally engineering education in the same engineering sciences. Concurrent engineering is discussed, together with the advantages and disadvantages from the viewpoint of the practicing engineers. It is suggested that the required approach leads to a requirement for engineers with a broader view than the traditional specialists. Next we consider the education process which, for design engineers, has evolved from apprenticeship to curricula that teach the engineering sciences. It is suggested that we may need to consider moving to the science of engineering. Finally, a possible view of future aerospace vehicle design is presented. Author Aerodynamics; Concurrent Engineering; Engineers; Transfer of Training; Design Analysis 20000062313 Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA USA Challenges of Packaging Photonic Devices Lutes, George, Jet Propulsion Lab., California Inst. of Tech., USA; Tu, Meirong, Jet Propulsion Lab., California Inst. of Tech., USA; [2000]; 9p; In English; No Copyright; Avail: CASI; A02, Hardcopy; A01, Microfiche Presently used photonic packaging methods are labor intensive and often unreliable. Studies have shown laser welding to be the superior fastening technology but it must be used in combination with a compatible positioning technology. The right combination of positioning technology and fastening technology which will result in low cost, reliable photonic assemblies is yet to be developed. Derived from text Packaging; Low Cost; Product Development; Laser Welding; Photonics 20000063375 National Renewable Energy Lab., Golden, CO USA Emissions and performance evaluation of a dedicated compressed natural gas saturn Hodgson, J. W.; Taylor, J. D.; Jul. 31, 1997; 53p; In English Report No.(s): DE97-008393; NREL/SR-540-22626; No Copyright; Avail: Department of Energy Information Bridge The use of compressed natural gas (CNG) as a transportation fuel has been identified as one strategy that can help ameliorate some problems, which include a growing dependence on imported oil (and all its ramifications) and the persistent contributions that mobile sources make to urban air pollution, associated with the use of conventional petroleum fuels. The attributes and limitations of CNG as a fuel for spark-ignition engines have been presented by others. The attributes are associated with its high octane rating, low cost relative to other alternative fuels, its availability, the absence of running and diurnal evaporative emissions, and its demonstrated potential for producing extremely low exhaust emissions-particularly if the volatile organic compounds (VOCs) emitted are expressed in terms of reactivity adjusted non-methane organic gases (RANMOG). The limitations associated with the use of CNG include its limited refueling infrastructure, the cost of refueling facilities, the cost of on-board fuel storage tanks, and its relatively low energy density. Because one impediment to CNG use is the cost associated with producing a CNG- powered vehicle, a study was initiated at the University of Tennessee under sponsorship by the Saturn Corporation to determine how a CNG vehicle (specifically, a 1991 Saturn SL1) could be engineered so it could be produced with a minimal impact on the production of the base vehicle. The present study was undertaken to further investigate the emissions reduction potential of the Saturn CNG vehicle. In the previous study the role of exhaust gas recirculation was not thoroughly investigated. Those involved in the study
agreed that the NO(sub x) levels could be brought down well below California ULEV levels without increasing either the nonmethane organic gases or the CO levels. NTIS Compressed Gas; Exhaust Emission; Liquefied Natural Gas 20000063496 Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA USA Advanced Interconnect Roadmap for Space Applications Galbraith, Lissa, Jet Propulsion Lab., California Inst. of Tech., USA; May 1999; 13p; In English; No Copyright; Avail: CASI; A03, Hardcopy; A01, Microfiche This paper presents the NASA electronic parts and packaging program for space applications. The topics include: 1) Forecasts; 2) Technology Challenges; 3) Research Directions; 4) Research Directions for Chip on Board (COB); 5) Research Directions for HDPs: Multichip Modules (MCMs); 6) Research Directions for Microelectromechanical systems (MEMS); 7) Research Directions for Photonics; and 8) Research Directions for Materials. This paper is presented in viewgraph form. CASI Electronic Packaging; Technology Utilization; Joining 20000064016 Institute TNO of Applied Physics, Delft, Netherlands Integration of BATSOFT and FEM Calculations Vermeulen, R. C. N., Institute TNO of Applied Physics, Netherlands; deJong, C. A. F., Institute TNO of Applied Physics, Netherlands; Dec. 23, 1999; 46p; In English; Original contains color illustrations Contract(s)/Grant(s): A98/KM/131; TNO Proj. 008.00654/01.01 Report No.(s): TD-99-0060; TPD-RPT-990218; Copyright; Avail: Issuing Activity In order to be able to predict the mobility of foundations (seating plus infinite bottom) in a simple way TNO-TPD developed the BATSOFT program. This program is very efficient because analytical approximations of the foundations are used such as beams and plates. However, sometimes the seating can not be approximated by simple beams and plates. A possible solution is then to calculate the seating mobilities by a Finite Element (FE) program. The BATSOFT program is adapted in such a way that FE results can be used. The input mobilities of three foundations are calculated using this ’hybrid’ BATSOFT. An excellent agreement has been found between calculations and measurements for a solid slender beam on an infinite plane. For the MF column hybrid BATSOFT yields better results than traditional BATSOFT. For the Sea Cooling Water Pump Foundation a good similarity is found for the mobilities of the clamped FE model and the measurements. When hybrid BATSOFT is used the similarity gets worse. The reason for that is not clear and it is recommended to examine this. Moreover it is recommended to extend BATSOFT from 2D to 3D and to implement multi point effects for the coupling of seating and infinite bottom. Author Computer Programs; Computation; Mobility; Sea Water; Beams (Supports) 20000064071 Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA USA Chip Scale Package Implementation Challenges Ghaffarian, Reza, Jet Propulsion Lab., California Inst. of Tech., USA; [1998]; 9p; In English; No Copyright; Avail: CASI; A02, Hardcopy; A01, Microfiche The JPL-led MicrotypeBGA Consortium of enterprises representing government agencies and private companies have jointed together to pool in-kind resources for developing the quality and reliability of chip scale packages (CSPs) for a variety of projects. In the process of building the Consortium CSP test vehicles, many challenges were identified regarding various aspects of technology implementation. This paper will present our experience in the areas of technology implementation challenges, including design and building both standard and microvia boards, and assembly of two types of test vehicles. We also discuss the most current package isothermal aging to 2,000 hours at 100 C and 125 C and thermal cycling test results to 1,700 cycles in the range of -30 to 100 C. Author Packages; Quality; Reliability 20000064090 Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA USA Chip Scale Package Integrity Assessment by Isothermal Aging Ghaffarian, Reza, Jet Propulsion Lab., California Inst. of Tech., USA; [1998]; 6p; In English; No Copyright; Avail: CASI; A02, Hardcopy; A01, Microfiche 61
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Scientific and Technical Aerospace
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Introduction Scientific and Technic
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Subject Divisions Table of Contents
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ground equipment and systems. For a
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Subject Categories of the Division
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48 Oceanography 139 Includes the ph
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72 Atomic and Molecular Physics 191
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Document Availability Information T
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Avail: NASA Public Document Rooms.
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NASA CASI Price Tables — Effectiv
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ALABAMA AUBURN UNIV. AT MONTGOMERY
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��
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20000061433 Pisa Univ., Dipartiment
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English; 34th; 34th Thermophysics C
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ciency of the generated derivative
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Page 33 and 34: 05 AIRCRAFT DESIGN, TESTING AND PER
Page 35 and 36: A long tradition of aerodynamic des
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Page 43 and 44: performance required for a proposed
Page 45 and 46: ment cost and create better product
Page 47 and 48: tion (NPSS), is focused on the inte
Page 49 and 50: surface measurement techniques used
Page 51 and 52: with emphasis on the search for lin
Page 53 and 54: 20000063520 NASA Kennedy Space Cent
Page 55 and 56: primary issues for it’s adaptatio
Page 57 and 58: Footage shows the night vertical ta
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Page 61 and 62: necessary for ignition modeling, or
Page 63 and 64: engine lifetime, and high power ope
Page 65 and 66: 24 COMPOSITE MATERIALS ��
Page 67 and 68: ments. For the screening of liner m
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Page 71 and 72: 20000065655 Ames Lab., IA USA Funda
Page 73 and 74: This is a second Triennial Conferen
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Page 79 and 80: Spacecraft in low Earth orbit (LEO)
Page 81: Pressure gradients, i.e. pressure h
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Page 87 and 88: 20000064078 Physics and Electronics
Page 89 and 90: 20000064925 Institute for Human Fac
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Page 93 and 94: 20000062455 National Inst. of Stand
Page 95 and 96: Added Analysis (Risk Reduction); 6)
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Page 101 and 102: other, The theoretical framework go
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Page 113 and 114: 37 MECHANICAL ENGINEERING ��
Page 115 and 116: solver based on overset grid techno
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Page 119 and 120: 20000064621 Rensselaer Polytechnic
Page 121 and 122: that for a specific example of a be
Page 123 and 124: km x 1000 km). As with the nearly c
Page 125 and 126: 20000064527 Analytical Imaging and
Page 127 and 128: 20000064533 Austin State Univ., Dep
Page 129 and 130: 20000064539 California Univ., Inst.
Page 131 and 132: 20000064547 Jet Propulsion Lab., Ca
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in Yellowstone National Park. We ar
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terns of community hysteresis based
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20000064565 Jet Propulsion Lab., Ca
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tion model (DEM) fitting to the sca
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The Carolina slate belt is a 10- to
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20000063373 Los Alamos National Lab
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20000064912 New Energy and Industri
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and discusses the issues and resear
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The objective of this study was to
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distributions with engine test resu
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7.6, while the 1926 events appear t
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We investigate the compositional di
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Flight Center, USA; Moore, T. E., N
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This report presents the Applied Me
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in Goa, India, by 3 - 4 days. Wind
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51 LIFE SCIENCES (GENERAL) Includes
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20000062717 Joint Inst. for Nuclear
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20000064015 Institute for Human Fac
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during 50% (SD 4%) of the breathing
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20000064711 Massachusetts Inst. of
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The analysis of this smaller data s
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vided a functional helmet mount. Th
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61 COMPUTER PROGRAMMING AND SOFTWAR
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The goal of multi-image classificat
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20000063526 Defence Science and Tec
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85 dB amplifier design evolved by o
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20000064594 New Mexico Univ., Elect
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20000064615 NASA Ames Research Cent
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declarations with a pattern recogni
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containing point where interpolatio
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has his own responsibility, while t
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the people, documents and projects
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and experimental technology, many o
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tems. In particular this applicatio
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Over the past decade, high performa
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expensive than a single analysis. I
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20000064726 Carnegie-Mellon Univ.,
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20000064099 Teledyne Brown Engineer
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20000066597 Geophysical Observatory
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20000065633 Institute TNO of Applie
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important conclusion is that for su
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est frame of the string. The modifi
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isotopes. The method and program we
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A detailed study is undertaken, usi
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20000063497 Kaiser Electro-Optics,
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delivers 60% of the x-ray flux from
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76 SOLID-STATE PHYSICS ��
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20000064660 Abdus Salam Internation
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20000067648 NASA Marshall Space Fli
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20000064703 Institute of Atomic Ene
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The BRST approach is applied to the
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20000067671 Hampton Univ., VA USA A
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82 DOCUMENTATION AND INFORMATION SC
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ecoming almost too cumbersome to be
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physical world. These are the two p
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with WFPC2 data. Tests of HSTphot
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A brief description is given of the
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20000064070 NASA Ames Research Cent
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gas, show variations that have rema
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egy, called Power In that would all
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20000065631 NASA Kennedy Space Cent
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20000064089 Smithsonian Astrophysic
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A ABERRATION, 143, 198 ABRASION, 22
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COMPRESSIBLE FLOW, 83 COMPRESSION L
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FATIGUE (MATERIALS), 50, 93, 96 FAT
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LASING, 90 LATE STARS, 224 LATITUDE
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PATCH ANTENNAS, 74 PATHOLOGY, 98 PA
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SPACE PLATFORMS, 38 SPACE PROBES, 2
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WIND PROFILES, 137 WIND TUNNEL TEST
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Brown, Andy, 38 Brown, April S., 20
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Grosvenor, C. A., 70 Grosvenor, J.
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Lu, Gui-Ying, 50 Lugg, Desmond J.,
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Robertson, Tony, 39 Robinson, Jeffr
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Warner, J. D., 63 Warren, James, 16
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Scientific and Technical Aerospace Reports Volume 38 July 28, 2000

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