Results 81 to 90 of about 9,918 (348)
Production and use of metals and oxygen for lunar propulsion [PDF]
Production, power, and propulsion technologies for using oxygen and metals derived from lunar resources are discussed. The production process is described, and several of the more developed processes are discussed.
Colvin, James E. +4 more
core +1 more source
Propulsion Risk Reduction Activities for Non-Toxic Cryogenic Propulsion [PDF]
, 2010 The Propulsion and Cryogenics Advanced Development (PCAD) Project s primary objective is to develop propulsion system technologies for non-toxic or "green" propellants.
Fisher, Kenneth +2 more
core +1 more source
Photochemical Fuel Carrier Molecules for Robotic Embodied Energy
Advanced Materials, EarlyView.We designed a novel fuel carrier photoresponsive molecule for on‐demand energy storage and release. Carrier molecules undergo bond scission under UV light to release chemical fuel and locally generate propulsive Marangoni flows. We demonstrate this photochemical embodied energy strategy in small‐scale robots and active matter systems, enabling ...
Chuqi Huang +6 more
wiley +1 more source
Green Propellant Demonstration with Hydrazine Catalyst of F-16 Emergency Power Unit [PDF]
Some space vehicle and aircraft Auxiliary Power Units (APUs) use hydrazine propellant for generating power. Hydrazine is a toxic, hazardous fuel which requires special safety equipment and processes for handling and loading.
Brechbill, Shawn, Robinson, Joel W.
core +1 more source
Space shuttle main engine: Interactive design challenges [PDF]
, 1985 The operating requirements established by NASA for the SSME were considerably more demanding than those for earlier rocket engines used in the military launch vehicles or Apollo program.
Mccarty, J. P., Wood, B. K.
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
AerospaceAs a new type of green propellant, ammonium dinitramide (ADN)-based energetic propellants have wide application value and development potential in the field of space propulsion. This paper delves into the intricate impact of varying initial temperatures,
Luyun Jiang +7 more
doaj +1 more source
Comparative analysis of the designs and implementation of vehicles based on reactive propulsion proposed during the nineteenth and beginning of the twentieth centuries [PDF]
Examination of the presently known historical scientific literature related to the problem of reactive flight indicates that considerable attention had already been given to the idea of reactive propulsion in the nineteenth century; about thirty designs ...
Sokolskiy, V. N.
core +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
Dynamics of electrically controlled propellant valves for “green”-propellant thrusters
Technical mechanicsRecently, the leading space countries have paid much attention to searching for and using new types of untoxic “green” propellants. Developments of 0.1 N to 220 N “green”-propellant thrusters have been reported, and some of them have been successfully tested in flight conditions.
openaire +1 more source