Results 31 to 40 of about 1,139,338 (253)

A Highly Efficient Single-Phase Three-Level Neutral Point Clamped (NPC) Converter Based on Predictive Control with Reduced Number of Commutations

open access: yesEnergies, 2018
This paper proposes a highly efficient single-phase three-level neutral point clamped (NPC) converter operated by a model predictive control (MPC) method with reduced commutations of switches. The proposed method only allows switching states with none or
Eun-Su Jun, Sangshin Kwak
doaj   +1 more source

Design and analysis of a new outer-rotor permanent-magnet flux-switching machine for electric vehicle propulsion

open access: yes, 2011
Purpose − The purpose of this paper is to propose a new outer-rotor permanent- magnet flux-switching machine for in-wheel electric vehicle propulsion.
Patrick Chi‐Kwong Luk   +7 more
core   +1 more source

Power Loss Analysis of a Five-Phase Drive System Using a Synchronous Reluctance Motor and an Indirect Matrix Converter with Reduced Switching Losses

open access: yesMachines, 2022
This paper introduces and analyzes the power losses of a five-phase drive system based on an indirect matrix converter (IMC) and a five-phase synchronous reluctance motor (SynRM).
Kotb B. Tawfiq   +2 more
doaj   +1 more source

Experimental Investigation on SiC MOSFET Turn-Off Power Loss Reduction Using the Current Sink Capacitor Technique

open access: yesEnergies, 2023
This paper investigates the current sink capacitor technique as a method to minimize the turn-off power losses of SiC MOSFETs operated with zero-voltage switching (ZVS).
Michał Harasimczuk   +4 more
doaj   +1 more source

Improving the Efficiency of the Shunt Active Power Filter Acting with the Use of the Hysteresis Current Control Technique

open access: yesEnergies, 2023
Calculation of the reference waveform for the compensating current generated by the shunt active power filter (ShAPF) can be carried out using various methods.
Andrzej Szromba
doaj   +1 more source

Pediatric Idiopathic Multicentric Castleman Disease Is Often Severe But Responsive to Siltuximab

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Idiopathic multicentric Castleman disease (iMCD) is a potentially fatal immunologic disorder marked by widespread lymphadenopathy and inflammation. Siltuximab, an interleukin‐6 (IL‐6) inhibitor, is the only FDA‐approved treatment for adult patients with iMCD.
Bridget Austin   +17 more
wiley   +1 more source

Increasing the Energy Efficiency of Traction Electric Drives of Direct Current

open access: yesNauka ta progres transportu
Purpose. The work is aimed at improving the energy efficiency of direct current traction electric drives of electric transport by introducing transistor pulse width converters (PWC) with an optimal switching frequency to minimize total electrical losses ...
V. M. Kovalov, Yu. V. Kovalova
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

A practical approach to switching-loss reduction in a large-capacity static VAr compensator based on voltage-source inverters [PDF]

open access: yes, 2000
This paper presents a simple method for reduction of switching and snubbing losses in a large-capacity static VAr compensator (SVC) consisting of multiple three-phase voltage-source square-wave inverters.
Fujita, Hideaki   +2 more
core   +1 more source

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