Results 61 to 70 of about 7,124 (253)

Critical review of converter topologies for switched reluctance motor drives [PDF]

open access: yes, 2007
This paper represents an overall literature review of SRM convenient drive circuit topologies with the proposal of a new topology utilizing switched capacitance circuit.
Elwakil, ES, Darwish, MK
core  

Resistance to Overdoping Allows Over 2000 S cm−1 Conductivity in P(g3BTTT) With Anion‐Exchange Doping

open access: yesAdvanced Materials, EarlyView.
Anion‐exchange doping of conjugated polymers is an effective way to achieve high conductivities. Here, we report over 2000 S cm−1 electrical conductivity for doped P(g3BTTT). In addition, we show that P(g3BTTT) sustains exceptionally high doping levels without any drop in the charge mobility.
Basil Hunger   +14 more
wiley   +1 more source

Transient Maneuvers and Pressure Analysis on an Automotive Torque Converter

open access: yes, 2021
This work involves an investigation of internal fluid behavior of an automotive torque converter in a front-wheel drive automatic 6-speed transmission.
Hempy, Abigail A
core   +1 more source

Improved Reduced Switch Converter Topology for Torque Ripple Reduction in Four-Phase Switched Reluctance Motor Under Dynamic Loading [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
In this paper, simulation, and performance comparison of a switched reluctance motor (SRM) for a classical asymmetric bridge converter and an improved reduced switch converter topology are provided.
Ritika Asati   +5 more
doaj   +1 more source

Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures

open access: yesAdvanced Materials, EarlyView.
Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin   +4 more
wiley   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

open access: yesAdvanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford   +9 more
wiley   +1 more source

Characterization of Torque Converter Cavitation Sound Power Level over Varying Speed Ratio

open access: yes, 2016
The purpose of this dissertation is to determine the relationship between the maximum cavitation sound power levels and the design and operating parameters of a matrix of automotive torque converters.
Reynolds, Craig
core   +1 more source

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

open access: yesAdvanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko   +10 more
wiley   +1 more source

Torque converter vehicle drive

open access: yes, 2020
Tato bakalářská práce se zabývá historií a funkcí hydrodynamického měniče a jeho vlivem na trakční charakteristiku vozidla. Popsány jsou jednotlivé prvky hydrodynamického měniče, rozdíly oproti hydrodynamické spojce a možnost násobení vstupního točivého ...
Tomáš Pánek
core  

On the accuracy of indirect torque measurement using frequency converter

open access: yes, 2017
The article presents evaluation of indirect torque measurement accuracy of converter-fed induction motors. The low-power (5.5 kW) motor supplied by Siemens SINAMICS S120 frequency converters was used to perform the measurement.
Beran Leoš   +2 more
core   +1 more source

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