Results 1 to 10 of about 353,662 (303)
NASA/DOE/DOD nuclear propulsion technology planning: Summary of FY 1991 interagency panel results [PDF]
Interagency (NASA/DOE/DOD) technical panels worked in 1991 to evaluate critical nuclear propulsion issues, compare nuclear propulsion concepts for a manned Mars mission on a consistent basis, and to continue planning a technology development project for ...
Bhattacharryya, Samit K. +5 more
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Janus droplet as a catalytic micromotor
Self-propulsion of a Janus droplet in a solution of surfactant, which reacts on a half of a drop surface, is studied theoretically. The droplet acts as a catalytic motor creating a concentration gradient, which generates its surface-tension-driven motion;
Shklyaev, Sergey
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Unmanned Aerial Vehicles (UAVs) are increasingly used in both civilian and military applications around the world. There are several types of UAVs with classifications according to several quantities.
Emre Kurt +3 more
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Hybrid drive for motor vehicles with a preponderantly intermittent method of operation [PDF]
A flywheel hybrid propulsion system is compared with a conventional propulsion system in a test vehicle under intermittent operation. An energy balance is presented for the conventional propulsion system.
Schreck, H.
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Directions in propulsion control [PDF]
Discussed here is research at NASA Lewis in the area of propulsion controls as driven by trends in advanced aircraft. The objective of the Lewis program is to develop the technology for advanced reliable propulsion control systems and to integrate the ...
Lorenzo, Carl F.
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Propulsion sizing program [PDF]
Computer program was written to evaluate and define optimum design parameters of low pressure auxiliary propulsion system. APS will provide attitude and translational control of space shuttle vehicles.
Burns, A. E., Kaemming, T. A.
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Integrated propulsion for near-Earth space missions. Volume 1: Executive summary [PDF]
Tradeoffs between electric propulsion system mass ratio and transfer time from LEO to GEO were conducted parametrically for various thruster efficiency, specific impulse, and other propulsion parameters.
Dailey, C. L. +3 more
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Advanced onboard propulsion benefits and status [PDF]
Future commercial space systems may include geosynchronous-orbit communication satellites; Earth-observing satellites in polar, sun-synchronous orbits; and tended low-earth-orbit platforms.
Byers, David C.
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Investigation of space rendezvous propulsion system requirements. Volume I - Summary Final report, 20 Nov. 1961 - 19 Dec. 1962 [PDF]
Space rendezvous propulsion system requirements - phase and mission analyses, and propulsion system design ...
Lysdale, C. A.
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This paper describes the considerations taken into account in order to design and build an electronic control system to be used on an Unmanned Surface Vehicle (USV), in an effective, versatile and economic way, using Commercial Off-The-Shelf elements ...
Juan Pablo GutiƩrrez Bucheli +1 more
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