Results 291 to 300 of about 18,217 (342)

A comprehensive review of evolution of advanced follicular unit excision systems. [PDF]

J Cutan Aesthet Surg
Chauhan K, Tandon M, Kumar A, Taneja N, Hamid SAT.   +4 more
europepmc   +1 more source

EEG Sensor-Based Computational Model for Personality and Neurocognitive Health Analysis Under Social Stress. [PDF]

Sensors (Basel)
Riaz M, Guerra P, Gravina R.
europepmc   +1 more source

Design and control models for multiphase induction machines with electronic pole switching

Lucas Roux
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Is there a simple and accessible solution to improve acute infarct core imaging? The utility of steady-state CT angiographic source images obtained from a delayed phase acquisition. [PDF]

Interv Neuroradiol
Mortimer A, Flood R, Dunkerton S, McClelland SB, Minks D, Crossley R, Wareham J, Smith A, Cox A, Bosnell R.   +9 more
europepmc   +1 more source

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Multiphase Electric Machines for Variable-Speed Applications

IEEE Transactions on Industrial Electronics, 2008
Although the concept of variable-speed drives, based on utilization of multiphase machines, dates back to the late 1960s, it was not until the mid- to late 1990s that multiphase drives became serious contenders for various applications. These include electric ship propulsion, locomotive traction, electric and hybrid electric vehicles, ldquomore ...
Emil Levi
openaire   +3 more sources

Multiphase Machine Design

2020
In this chapter, the benchmark SG presented in Chap. 4 will be used to develop HG designs suitable for the wind generation scheme discussed in Chap. 3. The HG designs are evolved from benchmark machine design maintaining magnetic and electric loading equivalence so as to realize designs that have some practical validation.
Omid Beik, Ahmad S. Al-Adsani
openaire   +1 more source

Multiphase machines with individual slot activation

Electrical Engineering, 2018
Under the aspect of decreasing costs for power electronic elements due to mass production, machines with feeding from multiphase inverters can be considered where each slot is activated as a separate phase. The number of IGBT switches is increased, but the current rating of the IGBTs becomes very small, thus reaching the region of cheap mass production
W.-R. Canders, H. Mosebach
openaire   +1 more source

Multiphase machines for electric vehicle traction

2014 IEEE Transportation Electrification Conference and Expo (ITEC), 2014
To have greater impact on application it is desirable to integrate machines and their associated power electronic converters into complicated systems that share component count to minimise cost. However, while compactness of systems is achieved, reliability of the power conversion components can be compromised by the arduous nature of system operating ...
Nigel Schofield, Xin Niu, Omid Beik
openaire   +1 more source

Refurbishing three-phase synchronous reluctance machines to multiphase machines

Electrical Engineering, 2020
Refurbishing electrical machines to have a higher performance and/or reliability is a clear trend in the circular economy. This paper investigates the gain in efficiency, torque density and reliability with replacing the windings and the iron of the stator of existing three-phase synchronous reluctance machines (SynRMs), resulting in a multiphase ...
Kotb B. Tawfiq, Mohamed N. Ibrahim, E. E. EL-Kholy, Peter Sergeant   +3 more
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Axially Stacked Multiphase Flux Reversal Machine

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019
This paper introduces a novel three-phase flux reversal machine. Unlike conventional machines, the proposed machine is based on a multi-layered design with three magnetically independent rotors and stators on the same shaft. Each layer represents a single-phase flux reversal machine (FRM), which is mechanically shifted against each other.
Jaeho Ryu, Ingo Hahn
openaire   +1 more source