Results 71 to 80 of about 4,253 (212)
The Legionella pneumophila chaperonin – an unusual multifunctional protein in unusual locations
Frontiers in Cellular and Infection Microbiology, 2011 The L. pneumophila chaperonin, HtpB, was discovered as a highly immunogenic antigen, only a few years after the identification of L. pneumophila as the causative agent of Legionnaires’ disease.
Rafael A. eGarduno +3 more
doaj +1 more source
Throttleable Solid Propellants Through Embedded Shape Memory Alloy and Resistance Wires
Propellants, Explosives, Pyrotechnics, Volume 50, Issue 3, March 2025.Throttling behavior of expanding propellants ABSTRACT Solid propellants are used in propulsion systems for their high performance, feasibility to manufacture, long shelf life, and ease of storage and handling; however, they are limited by the inability to actively control the burning rate.
Derek K. Messer +3 more
wiley +1 more source
Alternate propellants for the space shuttle solid rocket booster motors [PDF]
As part of the Shuttle Exhaust Effects Panel (SEEP) program for fiscal year 1973, a limited study was performed to determine the feasibility of minimizing the environmental impact associated with the operation of the solid rocket booster motors (SRBMs ...
core +1 more source
Application of Al/B/Fe2O3 Nano Thermite in Composite Solid Propellant
Bulletin of Chemical Reaction Engineering & Catalysis, 2016 Hydroxyl-terminated polybutadiene (HTPB) propellant were prepared with different content of Al/B/Fe2O3 nano thermite, and the mechanical, thermal and energetic performances were studied. Al/B/Fe2O3 nano thermite exhibited good compatibility with HTPB and
Jingke Deng +3 more
doaj +1 more source
Study of the Amplitude of Pressure and Thrust Oscillations in a Lab-Scale Hybrid Rocket [PDF]
, 2000 Hybrid rockets are being studied as a potential replacement for the solid rocket boosters on the NASA space shuttle. One physical characteristic of hybrid rockets that must be understood and overcome is potentially severe pressure oscillations during ...
Alford, Brian +4 more
core +1 more source
Journal of Aerospace Technology and Management, 2011 Thermal aging of hydroxy-terminated polybutadiene (HTPB) stabilized with 2,6-di(tert-butyl)hydroxytoluene (BHT) was carried out at 60°C from 1 to 11 weeks.
Luciene Dias Villar +4 more
doaj
A feasibility study for Scout polar launches from NASA Wallops Flight Center [PDF]
The feasibility of launching the Scout vehicle into a polar orbit from Wallops Flight Center is discussed. The impact of proposed flights on vehicle hardware and range safety are defined.
Myler, T. R.
core +1 more source
Recovery of aluminum from composite propellants [PDF]
, 1980 Aluminum was recovered from solid rocket propellant containing a small amount of oxidizer by depolymerizing and dissolving propellant binders (containing functional or hydrolyzable groups in a solution of sodium methoxide) in an alcohol solvent ...
Shaw, G. C.
core +1 more source
Effect of Microstructure on HTPB Based Polyurethane (HTPB-PU) [PDF]
Journal of Materials Science and Engineering B, 2015 null Abhijit Dey +4 more
openaire +1 more source
Combustion chemistry of solid propellants [PDF]
Several studies are described of the chemistry of solid propellant combustion which employed a fast-scanning optical spectrometer. Expanded abstracts are presented for four of the studies which were previously reported.
Baer, A. D., Ryan, N. W.
core +1 more source