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Results for “Preparations”

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 1,207 records · Page 67

All sources NASA NTRS DOE OSTI

NASA NTRS1966

Organic synthesis using fused salt systems - Preparation of a polytriphenylene.

Polytriphenylene synthesis at high temperatures using fused salts

ORGANIC COMPOUND↗

NASA NTRS1966

Preparation and properties of positive temperature coefficient thin-film thermistors.

Sputtering, slurry and doctor-blade techniques for depositing thin thermistor films of lanthanum- doped barium-strontium-titanate for bolometer application

BARIUM TITANATE↗

NASA NTRS1964

Creep properties and structure of a zinc- copper-titanium alloy prepared by powder metallurgy

Explore the source record for details and available documents.

Bartow, C. J.↗

NASA NTRS1967

Materials data handbooks prepared for aluminum alloys 2014, 2219, and 5456, and stainless steel alloy 301

Materials data handbooks summarize all presently known properties of commercially available structural aluminum alloys 2014, 2219, and 5456 and structural stainless steel alloy 301. The information includes physical and mechanical property data and design data presented in tables, illustrations, and text.

Source record↗

NASA NTRS1967

Precision trimmer aids in preparing biomedical specimen blocks for ultrathin sectioning

Precision trimmer, which neatly trims biomedical specimen blocks for ultrathin sectioning, eliminates the risk of human error. Four inches in diameter and 3 inches in height, it supports the block and serves as a support for a cutting tool and can be adjusted in three dimensions.

Tahmisian, T. N.↗

NASA NTRS1966

Preparation and investigation of absorbing magnetometer cells with double radiooptical resonance

Filling and covering for potassium, rubidium, and cesium vapor absorption chambers of radiooptical resonance magnetometers

DOUBLE RESONANCE↗

NASA NTRS1967

Galactic X-rays. /A summary prepared for the 1968 Yearbook of Science and Technology, McGraw-Hill/

Status of rocket and balloon borne galactic X-ray observations

X-RAY ASTRONOMY↗

NASA NTRS1967

NASA prepares to launch fourth Surveyor

Surveyor D spacecraft, Atlas Centaur launch vehicle, tracking and communication system, trajectory, and flight plan

ATLAS CENTAUR LAUNCH VEHICLE↗

NASA NTRS1967

Apollo actions in preparation for the next manned flight.

Design, construction and procedure changes in Apollo following fire of January 1967

APOLLO SPACECRAFT↗

NASA NTRS1968

Preparation of silver-activated zinc sulfide thin films

Silver improves luminescence and reduces contamination of zinc sulfide phosphors. The silver is added after the zinc sulfide phosphors are deposited in thin films by vapor evaporation, but before calcining, by immersion in a solution of silver salt.

Feldman, C.↗

NASA NTRS1968

Preparing rock powder specimens of controlled size distribution

Apparatus produces rock powder specimens of the size distribution needed in geological sampling. By cutting grooves in the surface of the rock sample and then by milling these shallow, parallel ridges, the powder specimen is produced. Particle size distribution is controlled by changing the height and width of ridges.

Blum, P.↗

NASA NTRS1968

The preparation, identification and properties of chlorophyll derivatives

In the investigation of 10-hydroxy chlorophylls a and b novel techniques included modification of chromatography and the use of fully-deuterated compounds isolated from fully-deuterated autotropic algae to determine the molecular structure of the chlorophylls.

Katz, J. J.↗

NASA NTRS1967