Results 91 to 100 of about 13,756 (306)
Effect of toroidal field ripple on plasma rotation in JET [PDF]
, 2008 Dedicated experiments on TF ripple effects on the performance of tokamak plasmas have been carried out at JET. The TF ripple was found to have a profound effect on the plasma rotation.
Andrew, Y. +17 more
core +2 more sources
Advanced Materials, EarlyView.Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam +6 more
wiley +1 more source
Optimal Design of IPM Motors With Different Cooling Systems and Winding Configurations [PDF]
, 2016 Performance improvement of permanent magnet (PM) motors through optimization techniques has been widely investigated in the literature. Oftentimes the practice of design optimization leads to derivation/interpretation of optimal scaling rules of PM ...
Demerdash, Nabeel +3 more
core +1 more source
ISO efficiency curves of a two-phase hybrid stepping motor [PDF]
, 2010 Stepping motors are used in numerous applications because of their low manufacturing cost and simple speed control. It is well known that their energetic efficiency is low but actual values are typically not available.
Cottyn, Johannes +8 more
core +1 more source
2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems
Advanced Materials, EarlyView.A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley +1 more source
Data-driven online temperature compensation for robust field-oriented torque-controlled induction machines [PDF]
, 2019 Squirrel-cage induction machines (IMs) with indirect field-oriented control are widely used in industry and are frequently chosen for their accurate and dynamic torque control.
Bozalakov, Dimitar +4 more
core +3 more sources
Direct Torque Controlled Induction Motor Drive For Torque Ripple Reduction
, 2017 This paper presents the performance analysis of direct torque control (DTC) and DTC based space vector modulation (SVM) technique controlled induction motor drive. DTC drive utilizes hysteresis comparators and suffers from high torque ripple and variable switching frequency. While the SVM-DTC reduces torque ripple preserving DTC merits.
openaire +1 more source
Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix
Advanced Materials, EarlyView.3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández +15 more
wiley +1 more source
International Journal of Technology, 2018 This study reports a novel strategy for minimizing torque ripple in a radial flux inset permanent magnet (RFIPM) generator by using a geometric modification of the magnet poles. We simulate the design of three different types of edge-rounded magnet (ERM)
Wike Handini +3 more
doaj +1 more source
Effect of the number of blades and solidity on the performance of a vertical axis wind turbine [PDF]
, 2016 Two, three and four bladed phgr-shape Vertical Axis Wind Turbines are simulated using a free-wake vortex model. Two versions of the three and four bladed turbines are considered, one having the same chord length as the two-bladed turbine and the other ...
Delafin, Pierre-Luc +3 more
core +4 more sources