Results 51 to 60 of about 197,878 (297)

Controllable reactive compensation

International Journal of Electrical Power & Energy Systems, 1982
Abstract Equipment currently available for the control of reactive power is reviewed. Topics discussed include the basic principles of, and the problems associated with, reactive power control and static reactive power control systems. The techniques of modelling and simulation are also considered.
openaire   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Research on Reactive Power Coordination Control Scheme of Energy Feedback Device in Urban Rail Transit Power Supply System

Chengshi guidao jiaotong yanjiu
Objective Currently, the urban rail transit power supply system mainly relies on the main substation SVG (static var compensator) for reactive power compensation.
ZHAO Jiawei, WANG Li, ZOU Dayun, CHEN Genjun, XIE Kai   +4 more
doaj   +1 more source

Дискретное управление конденсаторным компенсатором реактивной мощности в пусковых режимах мощных асинхронных двигателей [PDF]

, 2013
The expediency consideration capacitor bank reactive power compensation, consisting of several sections, switched on to the network- phase thyristor as a digital automatic control system of reactive power. A comparison of standard linear impulse control
Муха, Николай Иосифович, Павленко, Сергей Сергеевич   +1 more
core  

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

Harmonic Current Detection And Control Of Active Power Filter Based On Signal Processing

Journal of Applied Science and Engineering, 2023
With the advance of social science and technology, the wide use of power equipment and devices has brought a lot of harmonic interference to the power system.
Xuetang Lei, Yaya Xie, Jinkai Lei
doaj   +1 more source

Impedance-compensated grid synchronisation for extending the stability range of weak grids with voltage source converters [PDF]

, 2016
This paper demonstrates how the range of stable power transfer in weak grids with voltage source converters (VSCs) can be extended by modifying the grid synchronisation mechanism of a conventional synchronous reference frame phase locked loop (PLL).
D'Arco, Salvatore, Molinas Cabrera, Marta, Rodríguez Cortés, Pedro, Suul, Jon Are   +3 more
core   +2 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Analysis on Influence Factors of Temporary Overvoltage of Load Rejection Fault of Offshore Wind Power Transmission System of Permanent Magnet Synchronous Generator

发电技术, 2022
In order to evaluate the temporary overvoltage level of the wind power transmission system based on permanent magnet synchronous generator (PMSG) in case of load rejection, it is necessary to clarify the temporary overvoltage characteristics and its ...
YANG Daye, XIANG Zutao, LUO Xuzhi, SONG Ruihua, CHEN Qiyu, SHEN Lin, WANG Xiaotong   +6 more
doaj   +1 more source

Very long distance connection of gigawatt size offshore wind farms: extra high-voltage ac versus high-voltage dc cost comparison [PDF]

, 2016
This study presents a cost comparison between commercially available high-voltage DC (HVDC) and extra high-voltage AC shore connection (±320 kV voltage source converter and 420 kV-50 Hz single-core and three-core cables), for a 1 GW offshore wind farm ...
LAURIA, Stefano, MACCIONI, Marco, Palone, Francesco, Schembari, Maddalena   +3 more
core   +1 more source