Results 21 to 30 of about 2,262,511 (306)

Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil

Energies, 2021
This paper proposes a design guideline for selecting the pole and slot combination of an outer-rotor permanent magnet synchronous motor (PMSM) using a maximum slot occupation (MSO) coil.
Soo-Hwan Park, Eui-Chun Lee, Gi-Ju Lee, Soon-O. Kwon, Myung-Seop Lim   +4 more
doaj   +1 more source

Loss reduction analysis and control of AC-voltage-boosted FBSM MMC by injecting second harmonic circulating current

The Journal of Engineering, 2019
Reducing the power loss and handling short-circuit faults in HVDC systems are crucial for economical and reliable operation of modular multilevel converters (MMC). This paper proposes a loss reduction method for AC voltage-boosted FBSM-MMC by controlling
Muchao Xiang, Jiabing Hu, Zhiyuan He
doaj   +1 more source

Analysis of Copper Loss of Permanent Magnet Synchronous Motor With Formed Transposition Winding

IEEE Access, 2021
In recent years, the hairpin winding flat wire motor has received more and more attention because of its high power density and high torque, but the problem of increased AC copper loss caused by the increase of its wire diameter has restricted the use of
Yanping Liang, Fuchao Zhao, Kangwen Xu, Weihao Wang, Jia Liu, Peipei Yang   +5 more
doaj   +1 more source

Estimation of Photosynthesis Loss Due to Greenhouse Superstructures and Shade Nets: A Case Study with Paprika and Tomato Canopies

HortScience, 2022
In horticultural greenhouses, the photosynthetic photon flux density (I) is inevitably lower than that outside because of interference from greenhouse superstructures (e.g., reflection and absorption of radiation by greenhouse coverings and ...
Koichi Nomura, Masahiko Saito, Ikunao Tada, Tadashige Iwao, Tomihiro Yamazaki, Nobuyuki Kira, Yasuyo Nishimura, Makito Mori, Esteban Baeza, Masaharu Kitano   +9 more
doaj   +1 more source

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

Current distribution and AC losses in twisted multifilamentary AC superconductors [PDF]

IEEE Transactions on Magnetics, 1989
The development of AC superconductors has led to multifilamentary wires having a highly resistive matrix material and a small twist pitch and filament diameter. A numerical one-dimensional model is presented which enables the authors to calculate the current distribution as well as the magnetization and transport current loss in a current-carrying AC ...
Roovers, A.J.M., van de Klundert, L.J.M.
openaire   +2 more sources

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

Corneal endothelial cell changes and surgical results after Ahmed glaucoma valve implantation: ciliary sulcus versus anterior chamber tube placement

Scientific Reports, 2021
We compared the changes in corneal endothelial cells and surgical outcomes after Ahmed glaucoma valve (AGV) implantation with the valve tip inserted either into ciliary sulcus (CS) or anterior chamber (AC). We retrospectively reviewed the medical records
Joo Yeon Kim, Jihei Sara Lee, Taekjune Lee, Duri Seo, Wungrak Choi, Hyoung Won Bae, Chan Yun Kim   +6 more
doaj   +1 more source

The influence of the diffusion barrier on the AC loss of Nb3Sn superconductors [PDF]

, 1994
Nb3Sn superconductors as they are applied in the ITER fusion programme, are equipped with diffusion barriers made of V, Ta, and V-Nb, all having superconducting properties.
Kate, Herman H.J. ten, Knoopers, Hennie G., Nijhuis, Arend   +2 more
core   +2 more sources

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