Results 101 to 110 of about 71,876 (215)

Analysis of control concepts for gas and shaft-coupled V/STOL aircraft lift fan systems [PDF]

For lift-fan powered V/STOL aircraft, two unconventional propulsion system types were proposed. The first type uses fans connected by hot gas ducting, and the second type uses fans connected by cross shafting.
Hart, C. E., Mihaloew, J. R., Sellers, J. F.   +2 more
core   +1 more source

Advanced deep-learning model for temporal-dependent prediction of dynamic behavior of AC losses in superconducting propulsion motors for hydrogen-powered cryo-electric aircraft. [PDF]

Commun Eng
Alipour Bonab S, Berg F, Song W, Colle A, Yazdani-Asrami M.   +4 more
europepmc   +1 more source

Rotorcraft convertible engine study [PDF]

The objective of the Rotorcraft Convertible Engine Study was to define future research and technology effort required for commercial development by 1988 of convertible fan/shaft gas turbine engines for unconventional rotorcraft transports. Two rotorcraft
Earle, R. V., Gill, J. C., Mar, H. M.
core   +1 more source

Safety design of aviation propulsion lithium-ion battery systems based on thermal runaway explosion index. [PDF]

Sci Rep
Yang J, Yang Y, Tong J, Niu J, Zhang Q.
europepmc   +1 more source

Feasibility of Electrified Propulsion for Ultra-Efficient Commercial Aircraft Final Report [PDF]

MIT, Aurora Flight Sciences, and USC have collaborated to assess the feasibility of electric, hybridelectric, and turbo-electric propulsion for ultra-efficient commercial transportation.
Byahut, S., Courtin, C., Dowdle, A.P., Gonzalez, J.J., Greitzer, E.M., Hall, D.K., Hoburg, W.W., Kruger, M., Lang, J.H., Sabnis, J.S., Spakovszky, Z.S., Thalheimer, W., Trollinger, L., Tylko, J., Uranga, A., Varney, N., Yutko, B.   +16 more
core   +1 more source

Comparative optimization of electric robo-taxi (eRT) and electric unmanned aerial vehicle (eUAV) systems. [PDF]

Sci Rep
Seo H, Kim S, Shin B, Lee U.
europepmc   +1 more source

Quantifying urban and landfill methane emissions in the United States using TROPOMI satellite data. [PDF]

Sci Adv
Wang X, Jacob DJ, Nesser H, Balasus N, Estrada LA, Sulprizio MP, Cusworth DH, Scarpelli TR, Chen Z, East JD, Varon DJ.   +10 more
europepmc   +1 more source

Evaluation of low wing-loading fuel conservative, short-haul transports [PDF]

Fuel conservation that could be attained with two technology advancements, Q fan propulsion system and active control technology (ACT) was studied. Aircraft incorporating each technology were sized for a Federal Aviation Regulation (FAR) field length of ...
Pasley, L. H., Waldeck, T. A.
core   +1 more source

Robust trajectory maneuvering of VTOL aircraft using higher-order sliding mode control (HOSMC). [PDF]

Sci Rep
Dagal I, Erol B.
europepmc   +1 more source

Propeller-Wing Integration on the Parallel Electric-Gas Architecture with Synergistic Utilization Scheme (PEGASUS) Aircraft [PDF]

Electrically powered aircraft show promise for reducing emissions and energy consumption, but many of the opportunities surrounding electric propulsion have yet to be explored.
Blaesser, Nathaniel J.
core   +1 more source