Results 61 to 70 of about 32,209 (291)
Some experimental results on the L-star instability of metallized composite propellants [PDF]
, 1975 Experimental results are reported on the Lstar instability characteristics of three AP I composite propellants. The metal content of the propellants is 2%, 16%, and 16%.
Kumar, R. N.
core
Advanced Functional Materials, EarlyView.This work presents a continuous linear gradient catalyst layer design, a general strategy for improving membrane electrode assemblies across electrochemical devices. Fabricated via a dual‐nozzle spray coating method, the architecture controls the Pt/carbon ratio, ionomer content and ionomer type across the catalyst layer, enhancing proton conduction ...
Shangwei Zhou +15 more
wiley +1 more source
Method of injecting fluid propellants into a rocket combustion chamber [PDF]
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 connected to valves between these manifolds and ...
Schneider, Steven J.
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NASA Lewis Research Center low-gravity fluid management technology program [PDF]
, 1985 A history of the Lewis Research Center in space fluid management technology program is presented. Current programs which include numerical modeling of fluid systems, heat exchanger/radiator concept studies, and the design of the Cryogenic Fluid ...
Aydelott, J. C. +2 more
core +1 more source
Journal of Aerospace Technology and Management, 2013 http://dx.doi.org/10.5028/jatm.v5i2.229 حفز البحث عن السمية المنخفضة وعدم الإضرار بالبيئة على تطوير خطوط تحقيق محددة في العديد من المجالات. حتماً، لا تزال معايير المناولة الآمنة والحساسية، وقبل كل شيء، الدوافع (الكفاءات) المحددة لتركيبات الوقود الدافع متفوقة فيما يتعلق بالنداءات البيئية.
Gilson da Silva +2 more
openaire +5 more sources
Advanced Functional Materials, EarlyView.Sulfosalicylic acid (SSA) is introduced as a bifunctional additive for Aqueous zinc‐ion batteries. SSA reconstructs the solvation structure of Zn2+ through the synergistic effects of its multiple functional groups, suppressing side reactions while selectively promoting Zn (002) deposition to prevent dendrite formation.
Le Gao +8 more
wiley +1 more source
Design issues for propulsion systems using metallized propellants [PDF]
Metallized propellants are liquid propellants that contain metal particles. These particles are suspended in a gelled fuel or oxidizer. Aluminum is used as the metal additive.
Palaszewski, Bryan, Rapp, Douglas
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Electroactive Liquid Crystal Elastomers as Soft Actuators
Advanced Functional Materials, EarlyView.Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley +1 more source
Storage of solid propellants in a dry environment [PDF]
Storage of solid propellants in either a dry or a vacuum environment causes a significantly greater increase in the propellants' modulus and maximum tensile strength than does ambient storage.
Udlock, D. E.
core +1 more source
Propellant tank pressurization system Patent [PDF]
, 1965 Method and apparatus for pressurizing propellant tanks used in propulsion motor feed ...
Appel, M. A., Weitzel, D. F.
core +1 more source