Results 81 to 90 of about 22,298 (311)

Battery, Hybrid and Fuel-Cell Propulsion Systems

, 2011
The main purpose of the Research is theoretical and experimental evaluation of electric propulsion systems: pure electric ones, fed exclusively by electrochemical energy storage, hybrid electric, in which the power for propulsion comes from different ...
LUTZEMBERGER, GIOVANNI
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Aircraft electric power plants

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The paper presents a review of electrification of the existing propulsion systems and creating new hybrid propulsion systems based on the concept of more electric aircraft and all-electric aircraft in Russia and abroad.
A. D. Kondryakov, M. K. Leontiev
doaj   +1 more source

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

Advanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv, Jieni Chen, Cenqi Yan, Patrick W. K. Fong, Jingjing Zhao, Daming Zheng, DingQin Hu, Xiaoman Ding, Xiaokang Sun, Chuanlin Gao, Guangye Zhang, Qianguang Yang, Can Zhu, Pei Cheng, Shirong Lu, Zhipeng Kan, Zhiwei Ren, Guangliu Ran, Wenkai Zhang, Hanlin Hu, Gang Li   +20 more
wiley   +1 more source

European Student Moon Orbiter solar electric propulsion subsystem architecture: an all–electric spacecraft

, 2007
This paper presents the Phase A study of the Solar Electric Propulsion subsystem selected for the ESA European Student Moon Orbiter enhanced microsatellite, performed at QinetiQ under ESA funding.
Wallace, Neil, Grubisic, Angelo, Coletti, Michele, Wells, Nigel   +3 more
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Selection of design parameters of a spacecraft electric propulsion engine ensuring the geostationary orbit raising mission

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The problem of selecting suboptimal parameters of an electric propulsion system as part of a spacecraft, ensuring a geostationary orbit raising mission using a Soyuz-5 launch vehicle at the initial launch stage, is investigated. An expression is obtained
A. V. Kolesov, V. V. Salmin
doaj   +1 more source

Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction

Advanced Functional Materials, EarlyView.
This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia, Ciqun Xu, Michael D. Dickey, Jonathan Rossiter   +3 more
wiley   +1 more source

Electric Solar Wind Sail Propulsion System Development

, 2011
The electric solar wind sail (E-sail) was invented in 2006 and has thereafter been developed rapidly. This paper is a progress report of E-sail technical development as it stands in August 2011.
Lebreton J., Ukkonen J., Thornell G., Koivisto H., Pergola P., Tarvainen O., Janhunen P., Kauppinen J., Kvell U., Noorma M., Voormansik K., Haeggstrom E., Polkko J., Kurppa R., Latt S., Toivanen P., Giusti N., MARCUCCIO, SALVO, Johansson H., Aliasi G., Merikallio S., Kratz H., Rangsten P., MENGALI, GIOVANNI, Vinterhav E., Kiprich S., Allik V., Kromer O., Hallikainen M., Envall J., Kalvas T., Ylitalo T., Sundqvist J., Gronland T., Seppanen H., Rosta R., Salminen P., QUARTA, ALESSANDRO ANTONIO, Praks J.   +38 more
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Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses

Advanced Functional Materials, EarlyView.
By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso, Alec Lamoreux, Nicola Pugno, James J. C. Busfield, Federico Carpi   +4 more
wiley   +1 more source

Arcjet Propulsion System Study for NSSK

, 1993
The study of a low power arcjet propulsion system and its application to north-south .station keeping of geostationary telecommunication satellites was carried out at Centrospazio in the framework of the arcjet propulsion system development program ...
ANDRENUCCI, MARIANO, D'AGOSTINO, LUCA, D'AURIA F, SCORTECCI F   +3 more
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Hybrid solar sail and SEP propulsion for novel Earth observation missions

, 2010
In this paper we propose a pole-sitter spacecraft hybridising solar electric propulsion (SEP) and solar sailing. The intriguing concept of a hybrid propulsion spacecraft is attractive: by combining the two forms of propulsion, the drawbacks of the two ...
Colin R. McInnes, McInnes, Colin, Ceriotti, Matteo, Ceriotti, M., Matteo Ceriotti, McInnes, C.R.   +5 more
core   +1 more source