Results 51 to 60 of about 57,713 (310)

Application of electro-optic modulation technique for PD monitoring of power transformers [PDF]

open access: yes
Partial discharge (PD) detection is an important technique for assessing the health of high voltage power transformers. A partial discharge signal within an oil-filled power transformer may reach a winding first, then travel along the winding to the ...
Sutton, Simon   +5 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

A Study on the Enhanced Extraction of Ultra-High-Frequency Signals Induced by Transformer Core Coupling

open access: yesEnergies
Partial discharge, as an important indicator of insulation degradation in transformers, is a crucial means of assessing the insulation performance of transformers.
Zhiqin Ma   +6 more
doaj   +1 more source

Study of medium frequency transformer by using ultra‐thin silicon steel sheet in DC‐DC converter

open access: yesIET Power Electronics, 2022
In order to solve the problems of poor thermal stability and high frequency noise of transformer in traditional DC‐DC converter, the medium frequency transformer in isolated DC‐DC converter is designed and studied, which adopts 0.15 mm ultra‐thin silicon
Dezhi Chen   +5 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Application of High Frequency Rotary Transformer for Separately Excited Synchronous Generator in Offshore Wind Turbine [PDF]

open access: yes
This paper proposes a novel high frequency rotary transformer (HFRT) for a separately excited synchronous generator (SESG) used in offshore wind turbines.
Lu, J, Cole, Frank, Li, Xiaokun
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Features of the high frequency power transformer calculation

open access: yesNauka ta progres transportu, 2013
Purpose. The windings of power transformers have low resistance value and a most inductance, which reduces the rate of rise of current in the windings.
D.A. Zabarilo
doaj  

Wide-Band Characteristic Analysis and Compensation Research of Electromagnetic Current Transformer

open access: yesEnergies
In order to realize the wide frequency applicability of the electromagnetic current transformer in a ‘double high’ power system, the equivalent circuit model of the electromagnetic current transformer under wide frequency is established.
Xingyan Wu   +4 more
doaj   +1 more source

Analysis of Unidirectional Secondary Resonant Single Active Bridge DC–DC Converter

open access: yesEnergies, 2021
A compact and highly efficient unidirectional DC–DC converter is required as a battery charger for electrical vehicles, which will rapidly become widespread in the near future.
Cao Anh Tuan, Takaharu Takeshita
doaj   +1 more source

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