Results 91 to 100 of about 185,453 (305)

A Study on the Design of a Variable Power Electromagnetic Brake for Industrial Applications

Machines
This paper discusses a permanent-magnet electromagnetic brake for the semiconductor process of hollow integrated modules. This permanent-magnet electromagnetic brake is characterized by permanent magnets arranged at the bottom of the stator and coils ...
Ye-Ji Park, Jae-Kwang Lee, Ki-Doek Lee, Dong-Hoon Jung   +3 more
doaj   +1 more source

Electronically commutated dc motors for electric vehicles [PDF]

A motor development program to explore the feasibility of electronically commutated dc motors (also known as brushless) for electric cars is described. Two different design concepts and a number of design variations based on these concepts are discussed.
Maslowski, E. A.
core   +1 more source

Macroscopic Floquet topological crystalline steel pump

, 2017
The transport of a steel sphere on top of two dimensional periodic magnetic patterns is studied experimentally. Transport of the sphere is achieved by moving an external permanent magnet on a closed loop around the two dimensional crystal.
Bugase, Jonas, Fischer, Thomas M., Rossi, Anna M. E. B.   +2 more
core   +1 more source

Performance Comparison between Consequent-Pole and Inset Modular Permanent Magnet Machines [PDF]

, 2018
This paper proposes some consequent-pole modular permanent magnet machines with different flux gap widths and slot/pole number combinations. The corresponding inset modular permanent magnet machines having the same magnet volume are also presented ...
Amemiya J., Asama J., Chung S.U., Chung S.U., Chung S.U., Dajaku G., Hua H., Li G.J., Li G.J., Li G.J., Nakagawa M., Spooner E., Wu Z.Z., Zhu Z.Q., Zhu Z.Q.   +14 more
core   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu, Yuxi Gong, Weilin Xu, Xingjian Sun, Gefei Jiang, Lei Qiu, Kexin Shi, Mengxing Wu, Yinjiao Fei, Jinling Yuan, Jinyan Luo, Yurong Li, Yuandong Cao, Minhong Pan, Shu Zhou   +14 more
wiley   +1 more source

Demagnetization Fault Diagnosis for PMSM Drive System with Dual Extended Kalman Filter

World Electric Vehicle Journal
Aiming at the irreversible demagnetization of permanent magnet synchronous motors (PMSMs) under extreme working conditions, a fault diagnosis method for permanent magnet demagnetization based on multi-parameter estimation is proposed in this paper.
Jiahan Wang, Chen Li, Zhanqing Zhou
doaj   +1 more source

Influence of edge slotting of magnet pole with fixed slot opening width on the cogging torque in inset permanent magnet synchronous machine

Advances in Mechanical Engineering, 2016
The cogging torque in an inset permanent magnet synchronous machine causes some undesirable vibration and noises which should be reduced in the earliest possible stage of design.
Jeeng Min Ling, Tajuddin Nur
doaj   +1 more source

Constructing and Testing a Permanent-Magnet Railgun [PDF]

, 2013
A modified magnetic railgun has been built and investigated. Permanent magnets were used to supply the magnetic field and a car battery was used to provide the current. The projectile has been successfully shot out.
Wu, Yangfan
core   +1 more source

Self-assembled Zeeman slower based on spherical permanent magnets

, 2014
We present a novel type of longitudinal Zeeman slower. The magnetic field profile is generated by a 3D array of permanent spherical magnets, which are self-assembled into a stable structure.
Lebedev, V., Weld, D. M.
core   +1 more source

Stator iron loss of tubular permanent-magnet machines [PDF]

, 2005
While methods of determining the iron loss in rotating permanent-magnet (PM) machines have been investigated extensively, the study of iron loss in linear machines is relatively poorly documented.
Amara, Y., Howe, D., Wang, J.B.
core   +1 more source