Results 21 to 30 of about 292,858 (265)

Parameter Optimization for Reducing Torque Ripple and Harmonic Losses of Multi-Layered Interior Permanent-Magnet Synchronous Motors

IEEE Access, 2022
In this paper, parameter optimization of multi-layered interior permanent-magnet synchronous motors for electric vehicle propulsion is carried out to improve torque ripple and efficiency at low- and high-speed regions. First, we establish a torque ripple
Sung-Bae Jun, Chan-Ho Kim, Jin Hwan Lee, Jun-Kyu Kang, Yong-Jae Kim, Sang-Yong Jung   +5 more
doaj   +1 more source

Improving Powder Magnetic Core Properties via Application of Thin, Insulating Silica-Nanosheet Layers on Iron Powder Particles

Nanomaterials, 2016
A thin, insulating layer with high electrical resistivity is vital to achieving high performance of powder magnetic cores. Using layer-by-layer deposition of silica nanosheets or colloidal silica over insulating layers composed of strontium phosphate and
Toshitaka Ishizaki, Hideyuki Nakano, Shin Tajima, Naoko Takahashi   +3 more
doaj   +1 more source

Verification of Iron Loss Calculation Method using a High-Precision Iron Loss Analyzer

IEEJ Transactions on Industry Applications, 2013
SUMMARYBecause of the improved performance of power devices, the volume of the ac filter inductors used in high‐frequency PWM inverters has been reduced. However, the temperature rise in the filter inductor due to this miniaturization has become more pronounced.
Shimizu, Toshihisa, Kakazu, Keisuke, Takano, Koushi, Ishii, Hitoshi   +3 more
openaire   +1 more source

Sub-assembly experiments to determine PWM supply-induced losses in electric machines

The Journal of Engineering, 2019
This paper presents a low-cost approach to experimentally characterise the effect of the inverter supply on the losses in an electrical machine. The set-up comprises of representative subassemblies of the stator and winding, referred to as ‘motorettes ...
Jonathan Godbehere, Andrew Hopkins, Andrew Hopkins, David Drury, Phil Mellor   +4 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Analysis and Design of Novel High Speed Permanent Magnet Machine Considering Magnet Eddy Current Loss

IEEE Access, 2020
In high speed permanent magnet (HSPM) machines, the computation of magnet eddy current loss is essential as these losses significantly affect the temperature of the permanent magnet (PM) and electromagnetic performance and can result in irreversible ...
Hamid Ali Khan, Faisal Khan, Naseer Ahmad, Jongsuk Ro   +3 more
doaj   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

Molecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller, Janina Müller, Efstathios‐Iason Vlachavas, Lukas Beumers, Lena Fleischhacker, Sara Burmester, Angelika Wörner, Sabine Karolus, Dominic Helm, Cindy Körner, Stefan Wiemann   +10 more
wiley   +1 more source

Optimal Searching-Based Reference Current Computation Algorithm for IPMSM Drives Considering Iron Loss

Actuators
Interior permanent magnet synchronous machines (IPMSMs) are widely used as traction motors in the electric drive-train because of their high torque-per-ampere characteristics and potential for wide field weakening operation to expand the constant power ...
Péter Stumpf, Tamás Tóth-Katona
doaj   +1 more source

An Effective and Simplified Control Strategy for Loss Minimum of Permanent Magnet Synchronous Motor on Electric Vehicles

Journal of Harbin University of Science and Technology, 2020
In order to solve the problem of the loss of iron core and saturation inductance in the optimization control of constant power and wide speed of internal permanent magnet synchronous motor for electric vehicle，a new method of minimum loss control for a ...
LIN Li, PENG Zhengmiao, WAN Bingcheng, CHEN Hongwei, CHEN Hongzhuan   +4 more
doaj   +1 more source