Results 71 to 80 of about 13,027 (181)
Continuous Planetary Polar Observation from Hybrid Pole-Sitters at Venus, Earth, and Mars [PDF]
, 2017 A pole-sitter is a satellite that is stationed along the polar axis of the Earth, or any other planet, to generate a continuous, hemispherical view of the planet’s polar regions.
Ceriotti, Matteo +4 more
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Impact of propulsion system R and D on electric vehicle performance and cost [PDF]
The efficiency, weight, and manufacturing cost of the propulsion subsystem (motor, motor controller, transmission, and differential, but excluding the battery) are major factors in the purchase price and cost of ownership of a traffic-compatible electric
Gordan, A. L., Schwartz, H. J.
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Chemical Engineering TransactionsThe work considers a zero-emission high-speed catamaran ferry equipped with a hybrid powertrain, based on a full-electric propulsion system, and its preliminary risk analysis. Globally, there is major attention on full-electric vessels to comply with the
Tommaso Coppola +3 more
doaj
Multirotor Motor Failure Detection with Piezo Sensor. [PDF]
Sensors (Basel), 2023 Ambroziak L, Ołdziej D, Koszewnik A.
europepmc +1 more source
Hybrid gas-electrical power & heavy duty propulsion: test platform [PDF]
, 2018 This paper presents the results and discussion of an extensive set of tests of a hybrid generation system (gas-electric), to feed the electric motors which propel a small or medium vessel.
Bosch Tous, Ricardo +3 more
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In depth review of the 1979 AIAA Lighter-Than-Air Systems Technology Conference [PDF]
The lighter than air (LTA) systems technology conference is reviewed. Highlights of the conference were: (1) the interest shown in patrol and surveillance airships, particularly for coastal patrol missions; (2) the session devoted to overviews of foreign
Ardema, M. D.
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Evaluation of the environmental and economic impacts of electric propulsion systems onboard ships: case study passenger vessel. [PDF]
Environ Sci Pollut Res Int, 2021 Ammar NR, Seddiek IS.
europepmc +1 more source
Impacts of sociopolitical conditions [PDF]
Space development scenarios and the choice of technologies to carry them out depend upon the future social, economic, and political factors. A brief discussion concerning the impact of sociopolitical conditions on space exploration is presented.
Finney, Ben R.
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Inertial electrostatic confinement as a power source for electric propulsion [PDF]
The potential use of an INERTIAL ELECTROSTATIC CONFINEMENT (IEC) power source for space propulsion has previously been suggested by the authors and others.
Burton, R. +9 more
core +1 more source
Marine propulsion using battery power [PDF]
, 2016 : The global demand to reduce CO2 emissions requires effort from the shipping industry which currently emits about 2% of anthropogenic global Greenhouse Gases (GHGs) and which is predicted to increase due to growth of world trade.
Bucknall, RWG, Wu, P
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