Results 31 to 40 of about 6,789,886 (346)

Iron Loss Prediction Using Modified IEM-Formula during the Field Weakening for Permanent Magnet Synchronous Machines

open access: yesMachines, 2017
During field weakening operation time (FWOT), the total iron loss rises and affects the accuracy of loss prediction and efficiency, especially if a large range of FWOT exists due to a large voltage drop that was rooted from the resistance of the used ...
Pedram Asef   +2 more
doaj   +1 more source

Iron-based ferritin nanocore as a contrast agent [PDF]

open access: yes, 2010
Self-assembling protein cages have been exploited as templates for nanoparticle synthesis. The ferritin molecule, a protein cage present in most living systems, stores excess soluble ferrous iron in the form of an insoluble ferric complex within its ...
Johnson, Eric   +4 more
core   +2 more sources

Estimation of Iron Loss in Permanent Magnet Synchronous Motors Based on Particle Swarm Optimization and a Recurrent Neural Network

open access: yesMagnetism, 2023
The popularity of permanent magnet synchronous motors (PMSMs) has increased in recent years due to their high efficiency, compact size, and low maintenance needs.
Kai Xu   +3 more
doaj   +1 more source

Iron deficiency anemia and iron losses after renal transplantation [PDF]

open access: yesTransplant International, 2009
Iron deficiency contributes to anemia after transplantation. The magnitude of iron loss from blood loss in the peri-transplantation period has not been quantified. We prospectively estimated phlebotomy and surgical losses over the first 12-weeks following transplantation in 39 consecutive renal transplant recipients on hemodialysis (HD), peritoneal ...
Sijie, Zheng   +6 more
openaire   +2 more sources

Pre-Assembly Core Loss Measurement of Electric Motor Cores: A Review of Conventional and Advanced Technologies

open access: yesIEEE Access
Accurate core loss measurement considering manufacturing effects is essential for improving motor efficiency and reliability. This paper explores pre-assembly core loss measurement techniques in electric motors, focusing on the influence of manufacturing
Sudesh V. Pathirannahalage   +2 more
doaj   +1 more source

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

open access: yesIEEE 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   +5 more
doaj   +1 more source

An electrochemical investigation of the formation of CoSx and its effect on the anodic dissolution of iron in ammoniacal-carbonate solutions [PDF]

open access: yes, 2013
It has been found that the co-presence of cobalt (II) and thiosulphate ions in ammoniacal-carbonate solutions promotes the passivation of iron, under conditions in which it would otherwise continue to dissolve anodically. Electrochemical experiments have
D'Aloya, A, Nikoloski, A.N.
core   +2 more sources

Calculation for stator loss of high-speed permanent magnet synchronous machine in torque-speed envelope and restraint approach for circulating current in windings

open access: yesCES Transactions on Electrical Machines and Systems, 2018
Iron loss and copper loss are the significant parts of electrical loss of machines, which are the major parts particularly under high frequency condition. High-speed permanent magnet synchronous machines (HS-PMSM) have the benefits of high power density,
Yanan Yu   +3 more
doaj   +1 more source

Iron Losses Prediction with PWM Supply Using Low and High Frequency Measurements: Analysis and Results Comparison [PDF]

open access: yes, 2008
In this paper, two different methods for iron loss prediction are analyzed. The first method is based on the classical separation of loss contributions (hysteresis, eddy-current, and excess losses).
Boglietti, Aldo   +2 more
core   +1 more source

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

open access: yesIEEE 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   +3 more
doaj   +1 more source

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