Results 41 to 50 of about 146,948 (313)
CARRIER SIGNAL INJECTION BASED SENSORLESS CONTROL OF PERMANENT MAGNET BRUSHLESS AC MACHINES [PDF]
, 2012 This thesis is focused on the carrier signal injection based sensorless control of Permanent Magnet (PM) Brushless AC (BLAC) machines. Based on the machine saliency property, carrier signal injection based sensorless techniques have been well developed ...
Gong, Liming
core
Design and Construction of Position Sensorless Controller of Permanent Magnet Synchronous Motor with Internal Magnet based on Improved Phase-Locked Loop [PDF]
هوش محاسباتی در مهندسی برقIn recent years, the use of permanent magnet synchronous motors has become popular. These engines are cheaper, lighter, and more durable. However, to control these motors, accurate information about the position of the rotor is necessary. For this reason,
Saeed Abazari +2 more
doaj +1 more source
Operation Characteristics of Adjustable Field IPMSM Utilizing Magnetic Saturation
Energies, 2021 This paper describes an interior permanent magnet synchronous motor (IPMSM) based on a new adjustable field method. The proposed PM motor achieved magnetic field control utilizing magnetic saturation.
Kiyohiro Iwama, Toshihiko Noguchi
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang +8 more
wiley +1 more source
Dynamic cantilever magnetometry of individual ferromagnetic nanotubes [PDF]
, 2014 In this thesis, we focus on a particular aspect of nanotechnology, namely the understanding of magnetic states in nanometer-scale objects. Describing microscopic magnetization states and reversal is particularly important for the development of magnetic ...
Weber, Dennis Patrick
core +1 more source
Finite Element Analysis of Magnetic Saturation of Disk-type Magnetorheological Brake
Jixie chuandong, 2016 An evaluation magnetic saturation rate is proposed due to magnetic saturation degree not clear in the magnetorheological device. The magnetic field finite element analysis of disc- type magnetorheological brake is carried out,and the simulation results ...
Qiao Zhen, Huang Jin
doaj
On the Temperature Dependence of Ferro-Magnetic Saturation [PDF]
Proceedings of the National Academy of Sciences, 1933 Accurate data on the saturation intensity of magnetization at low temperatures for monocrystalline materials were recently published by Allen and Constant(1) who, moreover, show that their results fit into the following interesting law: Let the saturation intensity at the temperature T be denoted by MST, the same intensity at the absolute zero of ...
openaire +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers +19 more
wiley +1 more source
Low-temperature magnetic properties of magnetite
, 2000 Although several studies have recommended removal of secondary components of magnetic remanence by zero-field cycling from room temperature to a temperature much lower than the low temperature transition for magnetite (about 120 K), the method has not ...
Wyn Williams +3 more
core +1 more source
Electrical engineering & Electromechanics, 2023 Introduction. The active and reactive (inductive) winding resistances of three-phase asynchronous motors (IM) are investigated. These important parameters are determined during design and are the basis for calculating a number of energy parameters and ...
V. I. Milykh
doaj +1 more source