Results 71 to 80 of about 1,319,354 (354)
International Journal of Electrical and Computer Engineering (IJECE), 2019 Drive’s output power must be restricted for the prevention of stresses over higher components in the input power system while utilizing a three-phase Variable Frequency Drive (VFD) which has powered from a single-phase AC source. To resolve this problem,
M. Rekha, Malligunta Kiran Kumar
semanticscholar +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Adult‐onset Still's disease (AOSD) complicated by macrophage activation syndrome (MAS) carries substantial mortality. The role of therapeutic plasma exchange (TPE) remains uncertain. Methods We retrospectively analyzed patients with AOSD‐MAS treated with TPE at a single‐center.
Masataka Ueda +15 more
wiley +1 more source
Intelligent Compact Drive System with a Synchronous Variable Reluctance Motor
Advances in Electrical and Electronic Engineering, 2004 The increase of energy costs underlines the need to use more efficient drive systems. One of the best solutions to reduce energy costs is the use of variable speed drives.
Ioan Adrian Viorel +3 more
doaj
Open Physics, 2020 In order to solve the problem that the long cable variable voltage and variable frequency (VVVF) system does not adopt an effective capacitor voltage sharing control method, resulting in a poor effect of resonance overvoltage control, the resonance ...
Deng Yonghong, Zhang Quanzhu
doaj +1 more source
International Transactions on Electrical Energy Systems, 2022 Vector control of an asynchronous machine is traditionally accomplished by analogizing it to a separately excited DC machine. It provides decoupled torque and flux control that is perpendicular to each other, ensuring that neither vector interferes with ...
Belqasem Aljafari +3 more
doaj +1 more source
Design and Development of Three-Phase Voltage Source Inverter for Variable Frequency Drive
IOP Conference Series: Materials Science and Engineering, 2019 Three phase induction motors are the workhorse of industry. Variable speed operation of the motor enables substantial energy savings through implementation of variable frequency drives.
A S Nurhaida +5 more
semanticscholar +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Applied Power Electronics Conference, 2019 This paper presents a high-speed and high-dynamic variable frequency drive (VFD) based on the modular multilevel converter (MMC) and silicon carbide (SiC) devices. A compact submodule design with the straightforward extension feature is introduced.
Jianyu Pan +4 more
semanticscholar +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Application of frequency variableasynchronous motors to precision control of satellite antenna [PDF]
, 2017 Приведені кінематичні розрахунки модернізованого азимутального приводу супутникової антени із застосуванням асинхронних електродвигунів з частотним регулюванням швидкості. Обгрунтована доцільність застосування таких двигунів в приводах супутникових антен.
Nakonetchnyj, Yurij +7 more
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