Results 41 to 50 of about 335,229 (346)

A general approach to synthesis and analysis of quasi-resonant converters [PDF]

, 1991
A method for systematic synthesis of quasi-resonant (QR) topologies by addition of resonant elements to a parent pulse-width modulation (PWM) converter network is proposed.
Maksimović, Dragan, Ćuk, Slobodan
core   +2 more sources

Full- & Reduced-Order State-Space Modeling of Wind Turbine Systems with Permanent-Magnet Synchronous Generator [PDF]

, 2018
Wind energy is an integral part of nowadays energy supply and one of the fastest growing sources of electricity in the world today. Accurate models for wind energy conversion systems (WECSs) are of key interest for the analysis and control design of ...
Hackl, Christoph M., Hohmann, Sören, Jané-Soneira, Pol, Pfeifer, Martin, Schechner, Korbinian   +4 more
core   +3 more sources

The Gamma Ray Detection Capabilities of the Alpha Magnetic Spectrometer [PDF]

, 1999
The modeled performance of the Alpha Magnetic Spectrometer (AMS) as a high energy (0.3 to 100 GeV) gamma-ray detector is described, and its gamma ray astrophysics objectives are discussed.Comment: Latex2e file; 33 pages of text, 20 EPS figures.
Acciarri, Ahlen, Alcock, Alverson, Baring, Barwick, Battiston, Begeman, Berezinsky, Bignami, Blandford, Bloom, Chiang, Dar, Dermer, Dunlop, Fich, Flores, Fukugita, Golden, Gould, Hartman, Henri, Hillas, Hunter, Hurley, Jungman, Kazanas, Kerrick, Kratsov, Kurfess, Li, Mattox, Mori, Mukherjee, Müller, Navarro, Navarro, Padovani, Plaga, Pohl, R Battiston, Reid, Salamon, Salamon, Salamon, Sambruna, Sikora, Sjöstrand, Sreekumar, Stecker, Stecker, Stecker, Stecker, Swanenberg, Thompson, Thompson, Thompson, Turner, von Montigny, Waxman, Wind   +61 more
core   +4 more sources

Large-signal stability conditions for semi-quasi-Z-source inverters: switched and averaged models

, 2013
The recently introduced semi-quasi-Z-source in- verter can be interpreted as a DC-DC converter whose input- output voltage gain may take any value between minus infinity and 1 depending on the applied duty cycle. In order to generate a sinusoidal voltage
De Nicolo, Lisandro, Haimovich, Hernan, Middleton, Richard H.   +2 more
core   +1 more source

Serial-parallel conversion for single photons with heralding signals [PDF]

, 2017
We present serial-parallel conversion for a heralded single photon source (heralded SPS). We theoretically show that with the heralding signal, the serial-parallel converter can route a stream of n photons to n different spatial modes more efficiently ...
Kiyohara, Takayuki, Okamoto, Ryo, Takeuchi, Shigeki   +2 more
core   +2 more sources

A quantitative harmonics analysis approach for sinusoidal pulse‐width‐modulation based Z‐source inverters

IET Power Electronics, 2022
The shoot‐through (ST) states are essential for the operation of sinusoidal pulse‐width‐modulation (SPWM) based Z‐source inverters. However, the insertion of shoot‐through state unavoidably leads to output harmonics which is greatly affected by its ...
Wenzheng Xu, Chi Ho Chan, Ka Wing Chan, Siu Wing Or, Siu Lau Ho, Ming Liu   +5 more
doaj   +1 more source

Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State [PDF]

, 2017
This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in steady-state operation, while including the ...
Bergna-Diaz, Gilbert, D'Arco, Salvatore, Freytes, Julian, Guillaud, Xavier, Suul, Jon Are   +4 more
core   +3 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül, Neriman Sıla Koç, Berrak Itır Aylı   +2 more
wiley   +1 more source

A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating

Energies, 2019
Employing partial power processing (PPP) technique for quasi Z-source converter (QZSC) a new structure of the converter is presented. Using PPP technique although eliminates electrical insolation, but permits reducing voltage and current stress at the ...
Shahin Honarmand, A. Rajaei, M. Shahparasti, A. Luna, E. Pouresmaeil   +4 more
semanticscholar   +1 more source