Results 81 to 90 of about 39,032 (308)

Single-phase transformer model including magnetic hysteresis and eddy currents

, 2008
In this paper, a single-phase core-type and shell-type transformer model is proposed on the level of state equations. The magnetic hysteresis and the eddy currents effects are successfully included based on the analytical description of the magnetic core
Zacharias, Th., Theocharis, Andreas,, Milias-Argitis, J.   +2 more
core   +1 more source

ТИРИСТОРНІ ПЕРЕТВОРЮВАЧІ ЗІ ШТУЧНОЮ КОМУТАЦІЄЮ

Праці Інституту електродинаміки Національної академії наук України
Promising schemes of thyristor converters of alternating and direct voltage with artificial switching are presented. Detailed descriptions of the operation of artificial switching units in transformer and transformer-free, single-phase and three-phase ...
В.В. Голубєв , В.М. Губаревич, В.І. Зозульов, Ю.В. Маруня, А.І. Сторожук   +4 more
doaj   +1 more source

Transformer Impedance Calculation Using the Finite Element Method [PDF]

Científica
The design and construction of power transformers are complex tasks because they are high-capacity machines and must provide high reliability during their operation within the power system.
Rodrigo Ocón Valdez, Mariana Vasquez Cañas, Leonardo A. Rico García, Fermín P. Espino Cortés   +3 more
doaj   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source

Aplicação de algoritmos genéticos na modelagem de transformadores a partir de ensaios [PDF]

, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnonológico. Programa de Pós-graduação em Engenharia ElétricaEste trabalho apresenta uma análise dos procedimentos definidos por normas técnicas para o ensaio de transformadores de
Schulter, Marcelo
core  

Low-Frequency Transient Model of Single-Phase Four-Limb Converter Transformer Considering the Nonlinear Excitation Characteristics of the Iron Core

Applied Sciences
Transformer modeling is a crucial method for analyzing transient phenomena such as inrush currents. The primary characteristic of a transformer transient model is its ability to reflect how the transformer’s structure and material properties influence ...
Xichen Pei, Lan Xiong, Zhanlong Zhang, Zijian Dong, Yu Yang, Jiatai Gao, Tao Feng   +6 more
doaj   +1 more source

E2A selectively regulates TGF‐β–induced apoptosis in KRAS‐mutant non‐small cell lung cancer

Molecular Oncology, EarlyView.
Ability to induce apoptosis by TGF‐β is frequently lost in advanced lung adenocarcinoma despite intact TGF‐β signaling. We identify E2A as a mutant KRAS–dependent mediator of resistance to TGF‐β–induced apoptosis. TGF‐β induces E2A via SMAD3 in mutant KRAS cells, and E2A silencing restores apoptosis and enhances radiation response in cell lines ...
Sergei Chuikov, Shiva Krishna Katkam, Zhefan Wang, Venkateshwar G. Keshamouni   +3 more
wiley   +1 more source

High frequency link Uninterruptible Power Supply (UPS) system

, 2013
This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.The main aim of this thesis is to propose, design, simulate and build a new UPS system which can be used for compact applications.
Rasool, Emad Abdulrazzaq
core  

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

Molecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau, Lilian G. Zhai, Ryunosuke Hoshi, Zackary Rousseau, Abraam Zakhary, Yin Fang Wu, Rola M. Saleeb, Heyu Ni, Kelsie L. Thu   +8 more
wiley   +1 more source

KDM7A and KDM1A inhibition suppresses tumour promoting pathways in prostate cancer

Molecular Oncology, EarlyView.
Treatment resistance is a major challenge for patients with advanced prostate cancer. This study examined an alternative approach to target the major prostate cancer‐promoting pathway by targeting epigenetic factors, whose levels are higher in tumours.
Jennie N Jeyapalan, Veronika M Metzler, Simone de Brot, Corinne L Woodcock, Anna E Harris, Jennifer Lothion‐Roy, Emeli M Nilsson, Atara Ntekim, Michael S Toss, Jenny L Persson, Francesca Khani, Brian D Robinson, Lorraine J Gudas, Emad Rakha, David M Heery, Catrin S Rutland, Nigel P Mongan   +16 more
wiley   +1 more source