Results 21 to 30 of about 117,159 (342)
A Review of Low-Power Electric Propulsion Research at the Space Propulsion Centre Singapore
Aerospace, 2020 The age of space electric propulsion arrived and found the space exploration endeavors at a paradigm shift in the context of new space. Mega-constellations of small satellites on low-Earth orbit (LEO) are proposed by many emerging commercial actors ...
George-Cristian Potrivitu +6 more
doaj +1 more source
Validation of a Test Platform to Qualify Miniaturized Electric Propulsion Systems
Aerospace, 2019 Miniaturized electric propulsion systems are one of the main technologies that could increase interest in CubeSats for future space missions. However, the integration of miniaturized propulsion systems in modern CubeSat platforms presents some issues due
Fabrizio Stesina
doaj +1 more source
Electric Propulsion Methods for Small Satellites: A Review
Aerospace, 2021 Over 2500 active satellites are in orbit as of October 2020, with an increase of ~1000 smallsats in the past two years. Since 2012, over 1700 smallsats have been launched into orbit. It is projected that by 2025, there will be 1000 smallsats launched per
Dillon O’Reilly +2 more
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Fast E-sail Uranus entry probe mission [PDF]
, 2014 The electric solar wind sail is a novel propellantless space propulsion concept. According to numerical estimates, the electric solar wind sail can produce a large total impulse per propulsion system mass.
Janhunen, Pekka +5 more
core +3 more sources
Journal of Marine Science and Engineering, 2021 In recent decades, the design of ship propulsion systems has been focusing on energy efficiency and low pollutant emissions. In this framework, diesel–electric propulsion has become a standard for many ship types and has proven its worth for flexible ...
Raphael Zaccone +2 more
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Zhongguo Jianchuan Yanjiu, 2023 ObjectivesThis paper aims to study the problems that the external electrical characteristics of a hydrogen fuel cell are soft, its dynamic characteristics are poor and its system stability is susceptible to the influence of propulsion load in marine ...
Wujian SONG +4 more
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Development of Electric Propulsion Technology in Aviation [PDF]
中国工程科学The electric propulsion of aircraft has triggered a new wave of innovation and reform in the aviation sector. It is considered as an important move to implementing green development in aviation and addressing global environmental challenges.
Lingyun Shao +5 more
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Hybrid Electric Aircraft Propulsion Case Study for Skydiving Mission
Aerospace, 2017 This paper describes a case study for applying innovative architectures related to electrified propulsion for aircraft. Electric and hybrid electric propulsion for aircraft has gained widespread and significant attention over the past decade.
Richard Glassock +3 more
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Energies, 2020 The article presents issues related to the possibility of using electric propulsion systems in units used to transport crews servicing wind towers at sea. Offshore wind energy issues are discussed.
Andrzej Łebkowski
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International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source