Results 31 to 40 of about 2,155,111 (338)

Avalanche Photodiodes with Dual Multiplication Layers for High-Speed and Wide Dynamic Range Performances

Photonics, 2021
In this work, we demonstrate In0.52Al0.48As top/backside-illuminated avalanche photodiodes (APD) with dual multiplication layers for high-speed and wide dynamic range performances. Our fabricated top-illuminated APDs, with a partially depleted p-type In0.
Naseem, Zohauddin Ahmad, Yan-Min Liao, Rui-Lin Chao, Po-Shun Wang, Yi-Shan Lee, Sean Yang, Sheng-Yun Wang, Hsiang-Szu Chang, Hung-Shiang Chen, Jack Jia-Sheng Huang, Emin Chou, Yu-Heng Jan, Jin-Wei Shi   +13 more
doaj   +1 more source

Fully-coupled modeling and analysis of the influence of anti-icing bleed air system of engine inlet duct on compressor performance

Case Studies in Thermal Engineering
A fully-coupled method that integrates the compressor, inlet duct and anti-icing bleed air system (AI-BAS) was established to offer a quick prediction of the effects of anti-icing bleeding on compressor performance, facilitating the development of a ...
Zuojun Wei, Cheng Li, Guangming Ren, Xiaohua Gan   +3 more
doaj   +1 more source

Wide-Speed Range Sensorless Control of an IPM Motor for Multi-Purpose Applications

Inventions, 2020
In a growing number of battery-driven applications the need of removing any position and speed transducer is taking over due to space, cost and mechanical reliability constraints, further than making the installation easier as requiring less wiring. This
Maria Laura Bacci, Ferdinando Luigi Mapelli, Stefano Mossina, Davide Tarsitano, Michele Vignati   +4 more
doaj   +1 more source

Preliminary design and key components validation of modular recuperated micro gas turbine for small unmanned systems

Case Studies in Thermal Engineering
This paper presents an overview of the preliminary design of a modular recuperated micro gas turbine for small unmanned systems, demonstrating the technical feasibility of this integrated power solution.
Zuojun Wei, Wenhua Duan, Haotian Gao, Cunju Wei, Guangming Ren, Xiaohua Gan   +5 more
doaj   +1 more source

Flux-weakening control methods for hybrid excitation synchronous motor

Archives of Electrical Engineering, 2015
The hybrid excitation synchronous motor (HESM), which aim at combining the advantages of permanent magnet motor and wound excitation motor, have the characteristics of low-speed high-torque hill climbing and wide speed range.
Mingming Huang, Xinjun Guo, Ping Jin, Quanzhen Huang, Yuping Liu, Na Li   +5 more
doaj   +1 more source

On the multispacecraft determination of periodic surface wave phase speeds and wavelengths [PDF]

, 2010
Observations of surface waves on the magnetopause indicate a wide range of phase velocities and wavelengths. Their multispacecraft analysis allows a more precise determination of wave characteristics than ever before and reveal shortcomings of ...
A. N. Fazakerley, Bai, Balogh, Belmont, C. Foullon, C. J. Farrugia, C. J. Owen, Chandrasekhar, Chen, Chen, De Keyser, De Keyser, De Keyser, Elphic, F. T. Gratton, Fairfield, Fairfield, Farrugia, Farrugia, Foullon, Foullon, Foullon, Foullon, Fujimoto, Hasegawa, Hasegawa, Hasegawa, Hasegawa, Hones, Kokubun, Lavraud, Manuel, Mills, Miura, Miura, Miura, Miura, Nykyri, Ogilvie, Otto, Owen, Phan, R. B. Torbert, Roelof, Russell, Saunders, Schwartz, Southwood, Thomas, Torrence, Walker, Wright, Wu   +52 more
core   +2 more sources

Adaptive Control, Wide Speed Range Flight, and Deconfliction [PDF]

, 2009
First part is dedicated to the "Adaptive Control". In the previous document, state of the art was reported and theoretical basis were assumed. Here, the simulation results and the real flight tests are detailed. Wind tunnel experiments have been carried out in order to provide accurate models and validate the theoretical process.
openaire   +2 more sources

Multi-dimensional simulations for extensive off-design conditions of gas turbines by iterative-coupled methods using different characteristic maps of coaxial compressor and turbine

Case Studies in Thermal Engineering
Multi-dimensional simulations offer a complementary numerical platform to gas turbine experimentation, generating supportive data for training adaptation and artificial intelligence models.
Weimin Deng, Guangming Ren, Linyuan Jia, Zuojun Wei, Yuchun Chen, Xiaohua Gan   +5 more
doaj   +1 more source

Aerodynamic characteristics research on wide-speed range waverider configuration [PDF]

Science in China Series E: Technological Sciences, 2009
Waverider generated from a given flow field has a high lift-to-drag ratio because of attached bow shock on leading edge. However, leading edge blunt and off-design condition can make bow shock off leading edge and have unfavorable influence on aerodynamic characteristics. So these two problems have always been concerned as important engineering science
FaMin Wang, HaiHe Ding, MaiFang Lei
openaire   +1 more source

Analysis of FDML lasers with meter range coherence

, 2017
FDML lasers provide sweep rates in the MHz range at wide optical bandwidths, making them ideal sources for high speed OCT. Recently, at lower speed, ultralong-range swept-source OCT has been demonstrated1, 2 using a tunable vertical cavity surface ...
Draxinger, Wolfgang, Huber, Robert, Klein, Thomas, Petermann, Markus, Pfeiffer, Tom, Wieser, Wolfgang   +5 more
core   +1 more source