Results 111 to 120 of about 18,902 (308)

Modeling of Three-Phase Transformers for Naval Applications Considering Transient Analysis

Energies
This paper presents a systematic methodology for time-domain modeling of three-phase power transformers aimed at electromagnetic transient analysis in shipboard and embedded electrical systems.
Marcelo Cairo Pereira, Felipe Proença de Albuquerque, Eduardo Coelho Marques da Costa, Pablo Torrez Caballero   +3 more
doaj   +1 more source

A Direct Power Feeding System for AC Railway Networks Using Modular Multilevel Converter [PDF]

International Journal of Railway Research, 2018
Traditional railway power supply systems impose substantial power quality problems (PQ) on the utility network, such as unbalance, harmonics and a large amount of reactive power. This paper proposes a topology based on three-phase to single-phase modular
Hamed Jafari Kaleybar, Hossein Madadi Kojabadi, Seyed Saeed Fazel, Federica Foiadelli, Morris Brenna   +4 more
doaj  

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

Buildup of Fault Protection for High-Current Single-Phase Transformers in Ore Furnaces

Energies
High-power ore furnaces mainly use single-phase transformers supplied by phase-to-phase voltage with the secondary winding made in the form of four to eight isolated splits and a high-voltage busbar assembly made of the same number of pairs of tube buses.
Dilara Rakhimberdinova, Aleksandr Novozhilov, Evgeniy Kolesnikov, Vladimir Goryunov, Timofey Novozhilov   +4 more
doaj   +1 more source

Retificador buck trifásico unidirecional PWM isolado em alta-frequência por único estágio [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2009Descreve-se uma nova topologia de conversor CA-CC trifásico isolado em alta-frequência por único estágio ...
Greff, Diego Santos
core  

DNA methylation and expression of MAPRE3 affect overall survival of early‐stage non‐small cell lung cancer patients

Molecular Oncology, EarlyView.
Both cg12821679MAPRE3 methylation and MAPRE3 expression are significantly associated with overall survival (OS) of non‐small cell lung cancer. Meanwhile, MAPRE3 expression significantly modified the effect of smoking cessation on OS. Smoking cessation benefits OS merely for patients with high MAPRE3 expression.
Chao Chen, Jiancheng Cheng, Ruili Hou, Xiaoyuan Zheng, Li Su, Maria Moksnes Bjaanæs, Anna Karlsson, Maria Planck, Johan Staaf, Åslaug Helland, Manel Esteller, David C. Christiani, Feng Chen, Xiaofei Cao, Ruyang Zhang   +14 more
wiley   +1 more source

Analysis and Rapid Calculation of Magnetic Thermal Coupling Characteristics of Large Power Transformers

Elektronika ir Elektrotechnika
Conventional single-phase nuclear main transformers are susceptible to certain risks such as an increase in high local temperature in the windings, high leakage fields, and high short-circuit forces. Moreover, these transformers are too costly to use. In
Hong Liu, Guodong Li, Xuan Wang, Hua Yu, Bin Li, Tong Song, Changjiang Na, Haibo Wang   +7 more
doaj   +1 more source

Circulating tumor cell viability during and after radiotherapy mirrors treatment response in cancer patients

Molecular Oncology, EarlyView.
Radiotherapy (RT) response depends on the DNA repair capacity of tumor and host cells. We show that circulating tumor cell (CTC) counts and apoptosis rates before and after RT predict treatment response and outcome, which can be accessed via easily accessible liquid biopsy approaches. Created in BioRender. Wikman, H.
Yvonne Goy, Jana Löptien, Cornelia Coith, Afroditi Nanou, Katharina Hintelmann, Pinnschmidt Hans, Cordula Petersen, Klaus Pantel, Sabine Riethdorf, Kerstin Borgmann, Harriet Wikman   +10 more
wiley   +1 more source

Geomagnetically Induced Currents, Transformer Harmonics, and Reactive Power Impacts: Observed Response of a Single‐Phase Transformer in New Zealand

Space Weather
Geomagnetic storms represent a space weather hazard to power transmission networks due to the effects of induced geo‐electric fields within the conducting surface of the Earth.
Xinhu Feng, C. J. Rodger, M. A. Clilverd, D. H. Mac Manus, Victor Lo, M. Dalzell, A. Renton, A. Lapthorn, J. B. Brundell, Tanja Petersen   +9 more
doaj   +1 more source

Influência dos canais de instrumentação na exatidão da medição fasorial sincronizada [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2010Neste trabalho, investiga-se a influência exercida pelos Canais de Instrumentação (CIs) na exatidão ...
Lira, Ricardo
core