Results 31 to 40 of about 330,391 (267)

Computationally Efficient Stator AC Winding Loss Analysis Model for Traction Motors Used in High-Speed Railway Electric Multiple Unit

IEEE Access, 2022
The aim of this proposed work is to develop a computationally efficient and accurate AC winding loss analysis model for the traction motors for use in high-speed railways (HSRs).
Pil-Wan Han, Un-Jae Seo, Sarbajit Paul, Junghwan Chang   +3 more
doaj   +1 more source

Experimental and Numerical Study on Stray Loss in Laminated Magnetic Shielding Under 3-D AC-DC Hybrid Excitations for HVDC Transformers

IEEE Access, 2020
To investigate the stray loss in magnetic shielding components immersed in the 3-D AC-DC hybrid leakage magnetic field, a modified method is presented with the variation of the eddy current loss inside the coil due to the change of the leakage magnetic ...
Xiaojun Zhao, Yuezhi Cao, Zhiguang Cheng, Behzad Forghani, Lanrong Liu, Jiawen Wang   +5 more
doaj   +1 more source

Long-Term Destiny of Corneal Endothelial Cells in Anterior Chamber Intraocular Lens-Implanted Eyes

Journal of Ophthalmology, 2020
Purpose. To investigate the long-term changes of corneal endothelial cells (EC) in anterior chamber intraocular lens- (AC-IOL-) implanted eyes. Methods. Retrospective study.
Yating Tang, Jie Xu, Jiahui Chen, Yi Lu
doaj   +1 more source

Modelling Magnetisation and Transport AC Loss of HTS Tapes near Ferromagnetic Materials Using an Integral Equation Method

Applied Sciences
The integral equation formulation of Maxwell’s equations proposed by Brandt provides an alternative to the H and T-A formulations for modelling high-temperature superconducting (HTS) tapes.
Calvin C. T. Chow, K. T. Chau, Francesco Grilli   +2 more
doaj   +1 more source

Prediction of Nonsinusoidal AC Loss of Superconducting Tapes Using Artificial Intelligence-Based Models

IEEE Access, 2020
Current is no longer sinusoidal in modern electric networks because of widespread use of power electronic-based equipments and nonlinear loads. Usually AC loss is calculated for pure sinusoidal current, while it is no longer accurate when current is ...
Mohammad Yazdani-Asrami, Mehran Taghipour-Gorjikolaie, Wenjuan Song, Min Zhang, Weijia Yuan   +4 more
doaj   +1 more source

An Adipokinetic Hormone Acts as a Volume Regulator in the Intertidal Gastropod Mollusk, Aplysia californica

Frontiers in Endocrinology, 2018
Adipokinetic hormone (AKH) is a multifunctional neuropeptide in the gonadotropin-releasing hormone superfamily. In insects, AKH acts to mobilize energy stores during times of high energetic demand, but has been shown to have other effects.
Anthony W. Martillotti, Pei-San Tsai
doaj   +1 more source

Analysis of AC winding loss of permanent magnet synchronous traction motor with high power

机车电传动, 2022
In a multiple-pole and high-power PMSTM with high fundamental frequency, the harmonic frequency of the internal magnetic field increases accordingly. The harmonic magnetic field will induce eddy current in the winding, resulting in high-frequency eddy ...
LI Xiangcheng, WANG Yingchun, NI Wei, WU Nan   +3 more
doaj  

Role of Flux Diverters in Reducing AC Loss in a Single-Phase 6.5 MVA HTS Traction Transformer for Chinese High-Speed Train Carrying High-Order Harmonic Currents

IEEE Access, 2022
The traction transformer is a critical electrical component in high-speed-trains. We are currently building a 6.5 MVA superconducting traction transformer which will increase transformer efficiency to 99%, halve the weight, and avoid the fire risk
Wenjuan Song, Zhenan Jiang, Mohammad Yazdani-Asrami, Mike Staines, Rodney A. Badcock, Jin Fang   +5 more
doaj   +1 more source

Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures

Buildings, 2023
To explore the effect of UV-curable polyurethane (UV-PU) on the self-healing performance (SHP) of asphalt and asphalt mixtures, this article conducted research in this area of the evaluation method and influenced the law.
Huaizhang Sun, Wenyi Liu, Yu Wang, Xinyue Chang, Hu Zhao, Shengkang Shi, Jianbao Xing, Di Wu, Jizhe Zhang, Wengang Zhang   +9 more
doaj   +1 more source

AC Losses in Superconductors

TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 1969
A brief review is presented on the ac losses of superconductors in the low-frequency, high-frequency, and weak-field regions. Special emphasis is given to the hysteresis loss which is the main part of the low frequency losses. Existing data of the low-frequency losses are collected to be shown in a single figure and it is shown that most of these can ...
openaire   +2 more sources