Results 11 to 20 of about 953 (263)
Defence Technology, 2018 This paper presents the catalytic effects of Cu-Co* catalyst on the decomposition of AN and AN/KDN based oxidizer and propellant samples. Ozawa-Flynn-Wall (OFW) iso-conversional method was used for the kinetic studies and to compute the activation energy
Pratim Kumar +3 more
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Characterization of aluminum/RP-1 gel propellant properties [PDF]
24th Joint Propulsion Conference, 1988 Research efforts are being conducted by the NASA Lewis Research Center to formulate and characterize the properties of Al/RP-1 and RP-1 gelled propellants for rocket propulsion systems. Twenty four different compositions of gelled fuels were formulated with 5 and 16 micron, atomized aluminum powder in RP-1.
DOUGLAS RAPP, ROBERT ZURAWSKI
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Performance Evaluation and Experimental Studies on Metallised Gel Propellants
Defence Science Journal, 1999 Metallised gel propellants offer higher specific impulse and volumetric loading, reduced vaporisation loss, spillage and slosh problems and easy storage in comparison to the conventional liquid propellants. Theoretical performance analysis of gel propellant containing Al in unsymmetrical dimethyl hydrazine-dinitrogen tetroxide (UDMH-N/sub 2/O/sub 4 ...
T. L. Varghese +6 more
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Multi-stage hydraulic fracturing technology in a well with horizontal working face
Boletín de Ciencias de la Tierra, 2023 At present, hydraulic fracturing (HF) is still the most effective method of stimulating hydrocarbon flow and enhancing oil recovery in certain types of wells, particularly those with horizontal endings.
Dmitry Leontiev +5 more
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Comparative Assessment of Stabilised Polybutadiene Binder under Accelerated Ageing
Journal of Aerospace Technology and Management, 2016 Polybutadiene elastomers are versatile materials, being employed at several applications from rocket propellant binder to adhesives and sealants. The elastomers derived from hydroxyl-terminated polybutadiene are usually stabilised with antioxidants to ...
Luiz Felipe Cannaval Sbegue +1 more
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Autoignition Behavior of an Ethanol-Methylcellulose Gel Droplet in a Hot Environment
Energies, 2018 Autoignition of an ethanol-based gel droplet was experimentally investigated by adding 10 wt % of methylcellulose as gellant to liquid ethanol. Experimental studies of the ignition behavior of the gel droplet were found to be quite rare.
Donggi Lee +3 more
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Influence of 1,4-butanediol on hydroxyl-terminated poly(butadiene) based composite propellant binder characteristics [PDF]
Scientific Technical Review, 2015 1.4-butanediol, as a chain extender, was incorporated into a hydroxyl-terminated poly(butadiene) based composite rocket propellant binder composition. As curing agents, isophorone diisocyanate (IPDI) and toluene diisocyanate (TDI) were used.
Brzić Saša +5 more
doaj
Expansible thermal gelling foam aerosol for vaginal drug delivery
Drug Delivery, 2017 Vaginal delivery of antimicrobial drugs is the most effective method for the local treatment of the vaginal infections. However, current vaginal drug delivery systems (VDDS), including gel, lotion, aerosol and cream, are suffering from low penetration in
Liling Mei +7 more
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Comparison of Monomethylhydrazine/Hydroxypropylcellulose and Hydrocarbon/Silica Gels
, 2010 Experimental studies have been performed to investigate rheology and droplet burning with different types of gelled propellants. Monomethylhydrazine has been gelled with organic hydroxypropylcellulose.
Richard Arnold +9 more
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Chemical Engineering Transactions, 2017 The oxidative degradation of deproteinized natural rubber (DPNR) using cobalt bis(acetyl acetonate) in the presence of different alcohols and various reaction time; followed by reduction with sodium borohydride (NaBH4) for the synthesis of hydroxyl ...
N. Baharulrazi +4 more
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