Results 141 to 150 of about 417,955 (336)
Ultrasound Characterization of Plastic Bonded Explosives With Varied Binder Content and Density
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Advanced explosive formulations and methods of production require rapid characterization for both processes and materials. Here, we present results for ultrasound characterization of a plastic bonded explosive (PBX) formulation as a function of binder weight percent and pressing density using through‐transmission sound speed measurements.
Jordan S. Lum +6 more
wiley +1 more source
An Impulse Electric Motor for Driving Recording Instruments [PDF]
The chief purpose in undertaking the development of this synchronous motor was the creation of a very small, compact power source, capable of driving the film drums of the recording aircraft instruments designed by the staff of the National Advisory ...
Joachim, W F
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Electromagnetic Wave Theory and Remote Sensing [PDF]
, 1983 Contains reports on six research projects.Joint Services Electronics Program (Contract DAAG29-80-C-0104)National Science Foundation (Grant ENG78-23145)National Science Foundation (Grant ECS82-03390)Schlumberger-Doll Research CenterNational Aeronautics ...
Chuang, Shun-Lien +5 more
core
Propellants, Explosives, Pyrotechnics, EarlyView.This study presents an alternative method to manufacture polymer‐bonded explosives by partially curing an HTPB‐based molding powder prior to compaction. The study shows that the length of partial cure time before compaction directly influenced the geometric fidelity, homogeneity, compressive strength, density, and internal microstructure.
Ismar L. Chew +4 more
wiley +1 more source
AEROPLAS – AERONAUTICAL PARTS DEVELOPMENT THROUGH LOW-COST TECHNOLOGIES [PDF]
, 2023 Soralla Pintos
openalex +1 more source
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT We report on the synthesis and characterization of 3‐(2‐(2‐azidoethoxy)ethoxy)‐4‐nitro‐1,2,5‐oxadiazole (NFPEG2N3), which is a liquid nitrofurazanyl ether that was designed to be an energy‐rich plasticizer for glycidyl azide polymer (GAP)‐ and nitrocellulose (NC)‐based formulations.
P. Lieber +3 more
wiley +1 more source
Activities of the Aeronautics and Space Engineering Board Commission on Engineering and Technical Systems [PDF]
The agenda of the Aeronautics and Space Engineering Board meeting is reviewed. Items discussed included; engineering and technical requirements of the space station, NASA's altitude wind tunnel, rocket engine casings, advanced flight vehicle technology ...
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Development of NMP‐001, A Nitromethane‐Based Green Propellant
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT This paper discusses the development of a model monopropellant that is aimed at exploring the applicability of nitromethane‐based propellants as an alternative to hydrazine. This approach addresses the challenges faced by HAN‐, ADN‐based propulsion by being more cost‐effective while providing similar performance figures.
Maxim Kurilov +3 more
wiley +1 more source
Local and national impact of aerospace research and technology [PDF]
An overview of work at the NASA Lewis Research Center in the areas of aeronautics space, and energy is presented. Local and national impact of the work is discussed. Some aspects of the U.S.
Mccarthy, J. F., Jr.
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