Results 21 to 30 of about 32,209 (291)
Energies, 2023 Recently, many activities have been undertaken to reduce the negative impact of transport on the environment, e.g., using propulsion sources and consumed energy. Electric and hybrid vehicles are becoming more and more popular.
Piotr Pryciński +3 more
doaj +1 more source
An Experimental Study on the Large-Volume Liquid Hydrogen Release in an Open Space
Applied SciencesLiquid hydrogen is one of the high-quality energy carriers, but a large leak of liquid hydrogen can pose significant safety risks. Understanding its diffusion law after accidental leakage is an important issue for the safe utilization of hydrogen energy.
Zhao Zhang +11 more
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FirePhysChemPropellant formulations containing a novel high nitrogen azotetrazole salt viz., diammonium 5,5′-azotetrazolate (DAAzT) along with two different binders viz., hydroxyl terminated polybutadiene (HTPB) and glycidyl azide polymer (GAP) were realized as ...
Santhosh G +4 more
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Investigation on the foaming behaviors of NC-based gun propellants
Defence Technology, 2014 To prepare the porous NC-based (nitrocellulose-based) gun propellants, the batch foaming process of using supercritical CO2 as the physical blowing agent is used.
Yu-xiang Li, Wei-tao Yang, San-jiu Ying
doaj +1 more source
Impulse mechanical strength improvement of alumina by surface coating
Cailiao gongchengTo increase the impulse mechanical strength of alumina, the pore structure of alumina was modified by surface coating. It was found that the impulse mechanical strength of alumina samples coated with aluminum chloride increases from 35 MPa to 51 MPa and ...
CHEN Zhiqiang +5 more
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Extended temperature range rocket injector [PDF]
, 1991 A rocket injector is provided with multiple sets of manifolds for supplying propellants to injector elements. Sensors transmit the temperatures of the propellants to a suitable controller which is operably connnected to valves between these manifolds and
Schneider, Steven J.
core +1 more source
Molecular Oncology, EarlyView.Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon +13 more
wiley +1 more source
Defence Technology, 2014 Both heating and solvent-spray methods are used to consolidate the standard grains of double-base oblate sphere propellants plasticized with triethyleneglycol dinitrate (TEGDN) (TEGDN propellants) to high density propellants.
Zheng-gang Xiao +2 more
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The Study of HEMs Based on the Mechanically Activated Intermetallic Al12Mg17 Powder
Molecules, 2020 In this work, Al–Mg intermetallic powders were characterized and obtained by melting, casting into a steel chill and subsequent mechanical activation in a planetary mill. The method for producing Al12Mg17 intermetallic powder is presented. The dispersity,
Sergei Sokolov +3 more
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Correlation between solid propellant failure and interface debonding in solid rocket motors
Polymer Testing, 2022 In the traditional integrity analysis of solid rocket motors, solid propellants failure and propellant-liner interface debonding were intentionally differentiated. This empirical distinction of failure regions based on the macroscopic phenomenon neglects
Ming Lei +6 more
doaj +1 more source