Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1989 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.

Download or read book Space Station Systems written by and published by . This book was released on 1986 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technology for Large Space Systems written by and published by . This book was released on 1987 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA SP written by and published by . This book was released on 1991 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technology for Large Space Systems written by and published by . This book was released on 1988 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Papers Presented Or Published by JSC Authors in 1986 written by and published by . This book was released on 1987 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings American Philosophical Society vol 143 no 4 1999 written by and published by American Philosophical Society. This book was released on with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of Lunar and Mars Science Payloads written by Nancy Ann Budden and published by . This book was released on 1994 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Thruster Firings on the Shuttle Environment 1 written by Donald Edward Hunton and published by . This book was released on 1990 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The changes in the neutral gas composition surrounding the Space Shuttle caused by the Shuttle's Vernier Reaction Control System (VRCS) and Orbital Maneuvering System (OMS) rocket engines were measured with a quadrupole mass spectrometer aboard STS-4. There are substantial differences between the measured composition changes in the payload bay and the calculated composition of the thruster exhaust plumes. These differences can be explained by kinematic effects that occur as the exhaust products collide with surfaces and other gas phase species in the Shuttle environment. Hydrogen, because of its light mass, is enriched in the return flux to the spacecraft, and tends to permeate the Shuttle environment during thruster firings more easily than heavier species. The effect of the thruster firings on the mass spectrometer also depended on the attitude of the instrument with respect to the velocity vector. When the mass spectrometer was pointed into the velocity vector, decreases in atomic oxygen concentration were detected during the engine firings.

Download or read book Quadrupole Ion neutral Mass Spectrometer for Space Shuttle Applications written by Donald Edward Hunton and published by . This book was released on 1986 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Quadrupole Ion/Neutral Mass Spectrometer (QINMS) was developed for the fourth flight of the Space Shuttle in June and July of 1982. Several additional instruments have been built for other programs using the same design. The instruments are designed to measure the neutral and positive ion composition in the vicinity of the Space Shuttle or similar satellites. Other experimental capabilities include the measurements of total neutral pressure, total ion density, and species kinetic energy distributions. This report describes in detail the design and construction of the QINMS instruments, the integration requirements, ground testing and calibration procedures, typical flight operations, and finally, data requirements.

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Download or read book NASA Technical Memorandum written by and published by . This book was released on 1963 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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