Results 41 to 50 of about 26,545 (305)
Investigation and Comparison of MEMS-based Micro-propulsions for Small Satellites [PDF]
فناوری در مهندسی هوافضا, 2018 In this paper, MEMS-based micro-propulsions designed for small satellites are investigated and compared. Micro-propulsions based on this technology have many advantages over conventional systems, including small size, high integration, mass production ...
Farkhondeh Saliminezhad +3 more
doaj
Rocket motor system Patent [PDF]
, 1964 Igniter capsule for chemical ignition of liquid rocket ...
Gregory, J. W., Straight, D. M.
core +1 more source
Advanced Functional Materials, EarlyView.Interphase chemistry governs the stability of multivalent metal batteries. We summarize state‐of‐the‐art developments in calcium and magnesium metal batteries by focusing on the correlation among electrolytes, interphase layers, and the electrochemical performance of corresponding metal anodes.
Huijun Lin +4 more
wiley +1 more source
Influence of temperature on mechanical stimulation threshold of typical liquid propellant
Journal of Measurement Science and Instrumentation, 2021 In order to study the variation of temperature to mechanical stimulation threshold of typical liquid propellants（ADN-based HAN-based and nitromethane）, the critical impact energy and critical friction of three propellants under different temperatures ...
JIANG Yuxuan +7 more
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MDO approach for a two-stage microlauncher [PDF]
INCAS Bulletin, 2018 The paper focuses on the multidisciplinary optimisation and preliminary design of a two-stage microlauncher capable of inserting a small 50 kg payload into Low Earth Orbit.
Alexandru-Iulian ONEL +3 more
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Reduced gravity liquid configuration simulator [PDF]
, 1969 Reduced gravity liquid configuration simulator to study propellant behavior in rocket fuel ...
Olsen, W. A., Jr., Pinkel, I. I.
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Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation
Advanced Functional Materials, EarlyView.We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali +7 more
wiley +1 more source
Numerical analysis of reactive turbulent flow in the thrust chamber of RD-108 engine rocket
Defence Technology, 2019 Combustion chamber modeling and simulation of the liquid propellant engine with kerosene as fuel and liquid oxygen as an oxidizer in the turbulent flow field are performed by CFD technique.
Seyed Reza Taghavi +2 more
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Hot wire liquid level detector for cryogenic fluids Patent [PDF]
, 1966 Hot-wire liquid level detector for cryogenic ...
Olsen, W. A., Jr.
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A Non‐Reciprocal Architected Porous Medium
Advanced Functional Materials, EarlyView.ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies +2 more
wiley +1 more source