Results 101 to 110 of about 32,331 (292)
Low thrust monopropellant engine [PDF]
, 1981 The engine has a conventional body and nozzle configuration. The monopropellant fuel is fed into the thruster with dual injection tubes via an injector shell with dual spray jets. The spray jets are positioned generally opposed to each other.
Kuenzly, J. D.
core +1 more source
Advanced Materials, EarlyView.This work introduces an atomic‐level engineered bimetallic MOF Platform that resolves the inherent trade‐off between environmental stability and propulsion efficiency. By integrating robust Fe‐O bonds for hydrolysis resistance and enabling d‐orbital charge transfer (Fe3+→Cu2+) for enhanced photothermal conversion, the design achieves a highly durable ...
Senlin Rao +3 more
wiley +1 more source
FuelsExperimental research was conducted to characterize the ignition delay time and combustion performance of non-toxic reactants as a possible replacement for highly toxic fuels, such as hydrazine.
Joshua M. Hollingshead +3 more
doaj +1 more source
Analysis of the of propellants-polymers compatibility by different test methods [PDF]
Scientific Technical Review, 2017 This paper shows the results of chemical compatibility of two types of propellants (NGB-051and NC-28) with two types of polymer materials (Polyamide 12 and Polymethylmetacrylate) by different test methods.
Dimić Mirjana +3 more
doaj
Cryogenic Hydrogen Oxygen Propulsion System for Planetary Science Missions [PDF]
A Cryogenic Hydrogen Oxygen Propulsion System (CHOPS) that uses liquid hydrogen (LH2) and liquid oxygen (LO2) propellants can dramatically enhance NASA's ability to explore the solar system due to their superior specific impulse (Isp) capability ...
Douglawi, Alber +5 more
core +1 more source
High performance ammonium nitrate propellant [PDF]
, 1979 A high performance propellant having greatly reduced hydrogen chloride emission is presented. It is comprised of: (1) a minor amount of hydrocarbon binder (10-15%), (2) at least 85% solids including ammonium nitrate as the primary oxidizer (about 40% to ...
Anderson, F. A.
core +1 more source
Interphase Self‐Optimization Enables Stable Magnesium Anode in Hydrogel Electrolyte
Advanced Materials, EarlyView.Based on a MgCl2 hydrogel electrolyte, we identify a tridentate chelant additive to construct a magnesium oxychloride interphase on Mg metal anodes. This self‐optimized interphase enables low‐resistance Mg2+ stripping/plating, resulting in much elongated cycling life of 600 h with 0.24 V nucleation overpotential.
Xinyuan Zhang +4 more
wiley +1 more source
Phytoremediation of soils contaminated as a result of military and anthropogenic impact
Наукові доповіді Національного університету біоресурсів і природокористування УкраїниMilitary conflicts and anthropogenic accidents cause significant soil contamination with heavy metals, oil products, pesticides, and other toxic substances.
V. Melnychenko
doaj +1 more source
Advanced Materials, EarlyView.ABSTRACT Biohybrid microswimmers, which integrate the unique mobility and taxis of living cells with the versatility of synthetic cargo, offer exciting opportunities for targeted delivery. However, current biohybrids lack autonomous decision‐making capabilities due to the absence of communication between living and synthetic components. Here, we report
Xiaoran Zheng +3 more
wiley +1 more source