Results 51 to 60 of about 99,821 (358)
Sensorless position control of permanent magnet motors with pulsating current injection and compensation of motor end-effects [PDF]
, 2011 The sensorless position control of permanent-magnet motors is successfully implemented by superimposing a high-frequency voltage signal on the voltage reference or adding a high-frequency current signal to the current reference.
Cupertino, F. +3 more
core +1 more source
DDX3X induces mesenchymal transition of endothelial cells by disrupting BMPR2 signaling
FEBS Open Bio, EarlyView.Elevated DDX3X expression led to downregulation of BMPR2, a key regulator of endothelial homeostasis and function. Our co‐immunoprecipitation assays further demonstrated a molecular interaction between DDX3X and BMPR2. Notably, DDX3X promoted lysosomal degradation of BMPR2, thereby impairing its downstream signaling and facilitating endothelial‐to ...
Yu Zhang +7 more
wiley +1 more source
A Novel Direct-Drive Permanent Magnet Synchronous Motor with Toroidal Windings
Energies, 2019 A direct-drive motor has the merits of low speed, high torque, and elimination of mechanical deceleration mechanisms, and is widely used in various fields.
Caixia Gao +4 more
doaj +1 more source
Frontiers in Energy Research, 2023 Hybrid excitation primary permanent magnet linear motor has the dual advantages of high thrust density of primary permanent magnet linear motor and the flexibility on adjusting the air gap magnetic field of hybrid excitation motor. In this paper, two new
Xiuping Wang +3 more
doaj +1 more source
Comparitive study of the influence of harmonic voltage distortion on the efficiency of induction machines versus line start permanent magnet machines [PDF]
, 2012 Induction machines have nearly reached their maximal efficiency. In order to further increase the efficiency the use of permanent magnets in combination with the robust design of the induction machine is being extensively researched. These so-called line
Debruyne, Colin +3 more
core
Prediction Model for Etiologic Differentiation of Isolated Vestibular Syndrome in Emergency Settings
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective This study aimed to develop and validate a predictive model for differentiating central from peripheral etiologies in patients with isolated vestibular syndrome (VS). Methods In this multicenter retrospective cohort study, 506 patients with isolated VS from five hospitals were divided into derivation (n = 301) and validation (n = 205)
Guo Wenting +12 more
wiley +1 more source
Application of permanent magnet synchronous direct-drive traction system on Xuzhou metro line 1
机车电传动, 2022 Metro trains have the advantages of high starting acceleration, high operating speed, punctuality and large carrying capacity, but energy consumption is also an important issue that needs close attention in metro operation.
ZENG Yun +3 more
doaj
Zhongguo dianli, 2020 Rare earth permanent magnet materials, such as NdFeB, are widely used in permanent magnet motors because of their good magnetic properties, low price and good mechanical properties.
Yongjian LI +4 more
doaj +1 more source
CES Transactions on Electrical Machines and Systems, 2023 Because of its simple structure, large torque and high efficiency, permanent magnet synchronous motor of low speed and high torque is widely adopted in many fields. In this paper, a 394.5kW mining low-speed high-torque permanent magnet synchronous motor (
Shengnan Wu, Zhimin Li, Wenming Tong
doaj +1 more source
Position-sensorless control of permanent-magnet-assisted synchronous reluctance motor [PDF]
, 2003 The sensorless control of permanent-magnet-assisted synchronous reluctance (PMASR) motors is investigated, in order to conjugate the advantages of the sensorless control with full exploitation of the allowed operating area, for a given inverter.
Guglielmi, Paolo +3 more
core +1 more source