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New Orleans drinking water project: Summary of first year effort a...

By: Wolverton, B. C. ; Mccaleb, Rebecca C

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; In 1983, the state of Louisiana's Office of Public Works requested assistance from NASA to develop an efficient, cost effective system for r

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Natural systems for wastewater treatment and water reuse for space...

By: Wolverton, B. C

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; The technology for using artificial marsh systems for upgrading domestic sewage effluent from primary settling tanks and/or facultative or a

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US space commerce, 1991

By: Pace, Scot

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; The topics are presented in viewgraph form and include the following: the US share of commercial payloads in comparison with Ariane's share

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System for determining the angle of impact of an object on a structure

By: NON

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; A method for determining the angle of impact of an object on a thin-walled structure which determines the angle of impact through analysis o

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Nickel hydrogen capacity loss

By: Goualard, Jacques; Borthomieu, Y; Paugam, D.

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; The results of tests to assess capacity loss in nickel hydrogen cells are presented in outline form. The effects of long storage (greater th

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Radar Ocean Wave Spectrometer (ROWS) preprocessing program (PREROW...

By: Vaughn, Charles R

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; This Technical Memorandum is a user's manual with additional program documentation for the computer program PREROWS2.EXE. PREROWS2 works wit

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Shuttle ground operations efficiencies/technologies study. Volume ...

By: Scholz, A. L. ; Lowry, D. J; Hart, M. T.

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; The Preliminary Issues Database (PIDB) was assembled very early in the study as one of the fundamental tools to be used throughout the study

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A new software tool for computing Earth's atmospheric transmission...

By: Lord, Steven D

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; This report describes a new software tool, ATRAN, which computes the transmittance of Earth's atmosphere at near- and far-infrared wavelengt

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Change in the solar constant between 1968 and 1978

By: Kosters, J. J. ; Murcray, D. G

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; Solar irradiance measurements made from a balloon on January 27, 1978 and February 10, 1980 show a change of 0.4% over similar measurements

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Method and apparatus for three dimensional braiding

By: NON

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; A machine for three-dimensional braiding of fibers is provided in which carrier members travel on a curved, segmented and movable braiding s

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Document guidelines for new technology reporting

By: NON

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents

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Requirements analysis notebook for the flight data systems definit...

By: Wray, Richard B

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; A hybrid requirements analysis methodology was developed, based on the practices actually used in developing a Space Generic Open Avionics A

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The use of a univac 490 as a real-time message switching unit

By: Plaumann, R. H

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; Operation of UNIVAC 490 as real-time message switching unit

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Development of physical and mathematical models for the Porous Cer...

By: Tsao, D. Teh-Wei; Sager, J. C. ; Dreschel, T. W; Okos, M. R.

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; A physical model of the Porous Ceramic Tube Plant Nutrification System (PCTPNS) was developed through microscopic observations of the tube s

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OPERATIONS WITH AN EXPERIMENTAL SATELLITE

By: Mazur, D. G

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; Relay communication satellite - real time telemetry

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Support activities to maintain SUMS flight readiness

By: Wright, Willi

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; The Shuttle Upper Atmosphere Mass Spectrometer (SUMS), a component experiment of the NASA Orbital Experiments Program (OEX), was flown aboar

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Pragmatic quality metrics for evolutionary software development models

By: Royce, Walke

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; Due to the large number of product, project, and people parameters which impact large custom software development efforts, measurement of so

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A method for tailoring the information content of a software proce...

By: Perkins, Sharon; Arend, Mark B

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; The framework is defined for a general method for selecting a necessary and sufficient subset of a general software life cycle's information

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Distributed semantic networks and CLIPS

By: Snyder, James; Rodriguez, Ton

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; Semantic networks of frames are commonly used as a method of reasoning in many problems. In most of these applications the semantic network

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Rule groupings: A software engineering approach towards verificati...

By: Mehrotra, Mal

Supplemental catalog subcollection information: NASA Publication Collection; Astrophysics and Technical Documents; Currently, most expert system shells do not address software engineering issues for developing or maintaining expert systems. As a result, l

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