Results 11 to 20 of about 292,858 (265)

Finite-Element Modeling and Characterization of Iron Losses in 12 mm Thick Steel Laminations Including the Effect of Cutting

IEEE Access, 2021
Iron losses in laser-cut toroidal samples of 12 mm thick steel laminations used in large synchronous motors are studied. Eddy currents in the lamination cross-section are solved with the 2-D finite element method while applying a constitutive law based ...
Ismet Tuna Gurbuz, Paavo Rasilo, Floran Martin, Ugur Aydin, Osaruyi Osemwinyen, Ahamed Bilal Asaf Ali, Marta Chamosa, Anouar Belahcen   +7 more
doaj   +1 more source

Analysis of Electric Motor Magnetic Core Loss under Axial Mechanical Stress

Sensors, 2020
The electrical machine core is subjected to mechanical stresses during manufacturing processes. These stresses include radial, circumferential and axial components that may have significant influence on the magnetic properties and it further leads to ...
L. Ashok Kumar, Bagianathan Madhan Raj, Varadarajan Vijayakumar, Vairavasundaram Indragandhi, Vairavasundaram Subramaniyaswamy, Hamid. R. Karimi, Kalyana C. Veluvolu   +6 more
doaj   +1 more source

The Dermal Loss of Iron.

Experimental Biology and Medicine, 1950
Summary“Cell poor” and “cell rich” sweat samples from 25 normal subjects have been analyzed (total of 118 determinations). The iron content of “cell poor” sweat was negligible. On the other hand “cell rich” sweat contained a high concentration of iron.
W S, ADAMS, A, LESLIE, M H, LEVIN
openaire   +2 more sources

The Loss and Efficiency Analysis and Research of Interior Permanent Magnet Synchronous Motors for Traction Applications

IEEE Access, 2023
An IPMSM with I2V type rotor topology structure is proposed, its loss, efficiency and torque are analyzed and compared with V and IV type. Firstly, the optimized rotor topology structures are used to analyze the no-load air-gap flux density waveform and ...
Lianbo Niu, Mingzhu Zhang
doaj   +1 more source

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

CES 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, Deliang Liang, Zhe Liang, Qiji Ze   +3 more
doaj   +1 more source

Body Iron Loss in Animals

Experimental Biology and Medicine, 1978
SummaryMeasurements have been made of the decrease in specific activity of radioiron in circulating red cells of eight animal species. From these data calculations of body iron turnover have been made and establish a general inverse relationship between body size and rate of external iron exchange.
C A, Finch, H A, Ragan, I A, Dyer, J D, Cook   +3 more
openaire   +2 more sources

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

Transplant 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, Daniel W, Coyne, Heidi, Joist, Rebecca, Schuessler, Ambyr, Godboldo-Brooks, Patrick, Ercole, Daniel C, Brennan   +6 more
openaire   +2 more sources

Efficiency Analysis and Optimization of Two-Speed-Region Operation of Permanent Magnet Synchronous Motor Taking into Account Iron Loss Based on Linear Non-Equilibrium Thermodynamics

Machines
In this article, the linear non-equilibrium thermodynamic approach is used to mathematically describe the energy regularities of an interior permanent magnet synchronous motor (IPMSM), taking into account iron loss. The IPMSM is considered a linear power
Ihor Shchur, Yurii Biletskyi, Bohdan Kopchak   +2 more
doaj   +1 more source

Electromagnetic Design and Losses Analysis of a High-Speed Permanent Magnet Synchronous Motor with Toroidal Windings for Pulsed Alternator

Energies, 2018
The configuration of conventional high-speed Permanent Magnet Synchronous Motors (PMSMs) is usually long and thin, with overlong axial end winding lengths, which is not suitable for those applications that place severe restrictions on the axial length ...
Yuan Wan, Shumei Cui, Shaopeng Wu, Liwei Song   +3 more
doaj   +1 more source

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

Magnetism, 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, Youguang Guo, Gang Lei, Jianguo Zhu   +3 more
doaj   +1 more source