Results 41 to 50 of about 21,305 (311)
Time-optimal trajectories to circumsolar space using solar electric propulsion [PDF]
The aim of this paper is to explore the capabilities of a solar electric propelled spacecraft on a mission towards circumsolar space. Using an indirect approach, the paper investigates minimum time of transfer (direct) trajectories from an initial ...
Vasile, Massimiliano +5 more
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Smart hybrid energy management system in a passenger car
The technological advancements of internal combustion engines, batteries, and electric propulsion technology have reached such a level that they bring a new dimension to the potential of hybrid propulsion systems.
Péter Németh +2 more
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50’ Sail Catamaran with Hybrid Propulsion, Design, Theoretical and Experimental Studies
The development of modern lithium batteries and propulsion systems now allows the use of complex propulsion systems for vessels of various sizes. As part of the research and implementation project, a parallel hybrid drive system was designed, built and ...
Litwin Wojciech +3 more
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The combination of new airframes with electric and hybrid-electric propulsion is a potential solution to decarbonize aviation. In this context, recent studies have proven that the box-wing airframe, if integrated on a hybrid-electric aircraft belonging ...
Karim Abu Salem +2 more
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Generation of optimal trajectories for Earth hybrid pole sitters [PDF]
A pole-sitter orbit is a closed path that is constantly above one of the Earth's poles, by means of continuous low thrust. This work proposes to hybridize solar sail propulsion and solar electric propulsion (SEP) on the same spacecraft, to enable such a ...
Colin R. McInnes +5 more
core +1 more source
Drone Electric Propulsion System with Hybrid Power Source
Unmanned aerial vehicles, known today as drones, in the beginning, were small-dimension research models powered by small electric motors fed from electrical batteries.
Jenica-Ileana Corcau +3 more
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In order to develop a methodological apparatus for assessing various stages of the life cycle of hybrid/electric propulsion units, the existing approaches to estimating the costs of developing, manufacturing and operating aircraft engines of the ...
A. R. Polyakov +5 more
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The shipping industry has accelerated the transformation of its carbon emission reduction and decarbonization, and relevant patents are rapidly increasing, but the industry still lacks consensus on the low-carbon development route of ship propulsion ...
Minghan Sun +3 more
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Systems design of a hybrid sail pole-sitter [PDF]
This paper presents the preliminary systems design of a pole-sitter. This is a spacecraft that hovers over an Earth pole, creating a platform for full hemispheric observation of the polar regions, as well as direct-link telecommunications. To provide the
Colin R. McInnes +5 more
core +1 more source
Aircraft electric power plants
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

