Results 331 to 340 of about 191,825 (368)

Making the Case for Switched Reluctance Motors for Propulsion Applications

IEEE Transactions on Vehicular Technology, 2020
This paper makes the case that Switched Reluctance Motor (SRM) is an exceptionally attractive technology to respond to the increasing demand in propulsion applications for high-efficiency, high-performance, and low-cost motors with a more secure supply ...
B. Bilgin, Brock Howey, A. Callegaro, Jianbin Liang, M. Kordic, Joshua Taylor, A. Emadi   +6 more
semanticscholar   +1 more source

Density Asymmetry Driven Propulsion of Ultrasound‐Powered Janus Micromotors

Advanced Functional Materials, 2020
The ability of acoustically propelled micro and nanoscale motors to perform diverse tasks while moving in solutions can open up new applications in diverse fields such as medicine, biotechnology, and materials science.
Miguel Valdez‐Garduño, Mariana Leal‐Estrada, Eduardo Sergio Oliveros-Mata, Diana Isabel Sandoval‐Bojorquez, Fernando Soto, Joseph Wang, Victor Garcia‐Gradilla   +6 more
semanticscholar   +1 more source

Nuclear Propulsion

1993
Publisher Summary This chapter describes nuclear propulsion. Nuclear reactors serve as the power source for the propulsion of submarines and aircraft carriers. Tests of reactors for aircraft and for rockets have been made and reactors are being considered for future space missions.
openaire   +4 more sources

Propulsion patterns and pushrim biomechanics in manual wheelchair propulsion

Archives of Physical Medicine and Rehabilitation, 2002
To classify stroke patterns of manual wheelchair users and to determine if different patterns of propulsion lead to different biomechanics.Case series.Biomechanics laboratory.Thirty-eight individuals with paraplegia who use manual wheelchairs for mobility.Subjects propelled their own wheelchair on a dynamometer at 2 different steady state speeds ...
Boninger, ML, Souza, AL, Cooper, RA, Fitzgerald, SG, Koontz, AM, Fay, BT   +5 more
openaire   +3 more sources

Core@Satellite Janus Nanomotors with pH-Responsive Multi-Phoretic Propulsion.

Angewandte Chemie, 2020
We report core@satellite Janus mesoporous silica-Pt@Au (JMPA) nanomotors that are capable of pH-responsive multi-phoretic propulsion. The JMPA nanomotors first undergo self-diffusiophoretic propulsion in 3.0% H2O2 due to the isolated status between Au ...
Y. Xing, Mengyun Zhou, Tailin Xu, Songsong Tang, Yang Fu, Xin Du, L. Su, Y. Wen, Xueji Zhang, Tianyi Ma   +9 more
semanticscholar   +1 more source

Propulsion Integration for a Hybrid Propulsive-Lift System

SAE Technical Paper Series, 1974
In a discussion of STOL vehicles with conventional high-lift devices, the need for efficient power-augmented lift systems is presented, and the implications of quiet operation are noted. The underlying philosophy of a promising hybrid lift system with major interactions between aerodynamic, thermodynamic, acoustic, and configuration design technologies
M. K. Bowden, H. S. Sweet, J. H. Renshaw
openaire   +2 more sources

Electric propulsion systems for primary spacecraft propulsion

3rd Propulsion Joint Specialist Conference, 1967
Primary electric propulsion systems for deep space missions with reference to SERT II program and compatibility with other spacecraft ...
D. J. Kerrisk, H. R. Kaufman
openaire   +2 more sources

Opportunities and Challenges of Switched Reluctance Motor Drives for Electric Propulsion: A Comparative Study

IEEE Transactions on Transportation Electrification, 2017
Selection of the proper electric traction drive is an important step in design and performance optimization of electrified powertrains. Due to the use of high energy magnets, permanent magnet synchronous machines (PMSM) have been the primary choice in ...
E. Bostanci, M. Moallem, Amir Parsapour, B. Fahimi   +3 more
semanticscholar   +1 more source

Influence of Enzyme Quantity and Distribution on the Self-Propulsion of Non-Janus Urease-Powered Micromotors.

Journal of the American Chemical Society, 2018
The use of enzyme catalysis to power micro- and nanomachines offers unique features such as biocompatibility, versatility, and fuel bioavailability.
Tania Patiño, N. Feiner‐Gracia, Xavier Arqué, Albert Miguel-López, A. Jannasch, Tom Stumpp, E. Schäffer, L. Albertazzi, S. Sánchez   +8 more
semanticscholar   +1 more source

Large electric machines for aircraft electric propulsion

, 2018
To achieve benefits similar to those seen in hybrid-/all-electric ground-based and marine vehicles, electric propulsion has been proposed for large commercial aircraft.
Xiaolong Zhang, C. Bowman, T. O'Connell, K. Haran   +3 more
semanticscholar   +1 more source