Results 81 to 90 of about 2,146 (234)
Demonstration of a sterilizable solid rocket motor system [PDF]
A solid propellant rocket motor containing 60.9 Kg (134-lb) of propellant was successfully static fired after being subjected to eight heat sterilization cycles (three 54-hour cycles plus five 40-hour cycles) at 125 C (257 F).
Lambert, W. L. +2 more
core +1 more source
Technical Assessments of Future European Space Transportation Options [PDF]
, 2007 The paper describes some of the most recent activities in Germany in the technical assessment of future European launcher architecture. In focus is a joint effort of DLR-SART with German launcher industry in the definition of a next generation upper ...
Dutheil, Jean-Philippe +3 more
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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
Модель гибридного ракетного двигателя. Вычисления, проект и испытания [PDF]
, 2009 На даний час і у майбутньому ракетні двигуни будуть найголовнішими засобами виводу на орбіту космічних транспортних апаратів. В даний час найважливішою вимогою при проектуванні двигуна ракети є зменшення її вартості і максимальне збільшення енерговіддачі.
Folusiak, M. +5 more
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Active debris multi-removal mission concept based on hybrid propulsion [PDF]
, 2014 During the last 40 years, the mass of the artificial objects in orbit increased quite steadily at the rate of about 145 metric tons annually, leading to about 7000 metric tons.
A. Francesconi +13 more
core +2 more sources
Hybrid Propulsion Technology Program [PDF]
Future launch systems of the United States will require improvements in booster safety, reliability, and cost. In order to increase payload capabilities, performance improvements are also desirable.
Holzman, A. L., Jensen, G. E.
core +1 more source
Refining the Ares V Design to Carry Out NASA's Exploration Initiative [PDF]
, 2008 NASA's Ares V cargo launch vehicle is part of an overall architecture for u.S. space exploration that will span decades. The Ares V, together with the Ares I crew launch vehicle, Orion crew exploration vehicle and Altair lunar lander, will carry out the ...
Creech, Steve
core +1 more source
Síntese de poliuretanos modificados por óleo de mamona empregados em materiais energéticos
Química Nova, 2013 The aim of this work was to synthesize a polyurethane polymer matrix using castor oil as a polymer chain modifier, whose characteristics can be adjusted for use as a binder in the manufacture of energetic materials such as propellant and pyrotechnics for
Roberta Jachura Rocha +4 more
doaj +1 more source
Transient processes in the combustion of nitramine propellants [PDF]
A transient combustion model of nitramine propellants is combined with an isentropic compression shock formation model to determine the role of nitramine propellant combustion in DDT, excluding effects associated with propellant structural properties or ...
Cohen, N. S., Strand, L. D.
core +1 more source
Defence TechnologyDuring the storage of composite propellants, the migration of plasticizers and other unbonded additives at the interfaces of liner adhesives has garnered significant attention in understanding liner failure mechanisms, aging processes, and safety ...
Jie Wang +6 more
doaj +1 more source