Results 41 to 50 of about 8,004 (311)

Impulse voltage distribution on disk winding: Calculation of disk series capacitance using analytical method

, 2020
Nonlinear voltage distribution along the transformer winding during a lightning overvoltage can cause severe electric stress specially to the area of the winding close to the high voltage terminals. For high voltage transformers different methods such as
Ghaffarian Niasar, M. (author), Ghaffarian Niasar, M., Mohamad Ghaffarian Niasar, Weichuan Zhao, Zhao, W. (author), Zhao, W.   +5 more
core   +1 more source

Evaluation of Methodology for Lightning Impulse Voltage Distribution over High-Voltage Windings of Inductive Voltage Transformers

Energies, 2021
Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach different to the approach to the power transformers.
Bojan Trkulja, Ana Drandić, Viktor Milardić, Igor Žiger   +3 more
openaire   +2 more sources

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects

Zhejiang dianli
Current research lacks a comprehensive analysis of magnetic flux leakage patterns caused by transformer winding defects， which complicates defect detection.
LU Yingqiang, HU Zhongzhong, SHANG Hujun, ZHOU Quan   +3 more
doaj   +1 more source

A New Dynamic Voltage Restorer with Multi-level Open-end Winding Topology [PDF]

E3S Web of Conferences, 2020
In this paper, a variety of main circuit structures of DVR based on open-end winding are presented. Two inverters are connected in series to realize the multi-level structure and simplify the hardware cost. According to the mathematical model of open-end
Yin Jingyuan, Li Jinke, Huo Qunhai, Wu Lixin, Han Libo, Zhang Tongshuo   +5 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Power Transformer Based on Field-circuit Coupling in Different Operating Modes Simulation Ｒesearch on Leakage Magnetic Field

Journal of Harbin University of Science and Technology, 2021
In view of the change in the operation mode of the transformer，under the impact of the short-circuit current of the transformer，the magnetic field distribution characteristics of the windings are different.
WANG Kang, ZENG Jing-lan, ZHENG Yu, LAN Sheng, DU Guo-an, LIN Ye   +5 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

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source