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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 289 records · Page 16
All sourcesNASA NTRSDOE OSTI
NASA NTRS1995

Experimental and Estimated Rate Constants for the Reactions of Hydroxyl Radicals With Several Halocarbons

Relative rate experimental data are used to derive rate constants and temperature dependencies of the reactions of OH with several halocarbons. Rate constants for additional similar compounds are estimated. The experimental data, estimated data, and previously reported data are used to illustrate the effects of F, CL and Br substitution on OH rate constants for a series of 19 halomethanes and 25 haloethanes, as well as some higher HFCs.

hydroxy↗
NASA NTRS1972

Development of an image converter of radical design

A long term investigation of thin film sensors, monolithic photo-field effect transistors, and epitaxially diffused phototransistors and photodiodes to meet requirements to produce acceptable all solid state, electronically scanned imaging system, led to the production of an advanced engineering model camera which employs a 200,000 element phototransistor array (organized in a matrix of 400 rows by 500 columns) to secure resolution comparable to commercial television. The full investigation is described for the period July 1962 through July 1972, and covers the following broad topics in detail: (1) sensor monoliths; (2) fabrication technology; (3) functional theory; (4) system methodology; and (5) deployment profile. A summary of the work and conclusions are given, along with extensive schematic diagrams of the final solid state imaging system product.

Irwin, E. L.↗