Results 61 to 70 of about 766,223 (354)
A three-phase multilevel converter with multi-winding medium-frequency transformer
Gong-kuang zidonghua, 2014 In view of problems of unbalanced capacitor voltage, or big volume and high cost of phase-shifting transformer which provides DC power existed in traditional multilevel converter, the paper proposed a three-phase multilevel converter based on cascaded H ...
ZHANG Yulei, ZHANG Yuxiang, GUO Mi
doaj +1 more source
IET Science, Measurement & Technology, 2022 The main insulation structure of the valve‐side winding of converter transformer bears the effect of AC and DC superimposed voltage during operation.
Lijun Yang +3 more
doaj +1 more source
Elimination of current spikes in buck power converters [PDF]
, 1981 Current spikes in a buck power converter due to commutating diode turn-off time are eliminated by using a tapped inductor in the converter with the tap connected to the switching transistor. The commutating diode is not in the usual place, but is instead
Mclyman, W. T.
core +1 more source
A Single-Stage LED Driver Based on ZCDS Class-E Current-Driven Rectifier as a PFC for Street-Lighting Applications [PDF]
, 2018 This paper presents a light-emitting diode (LED) driver for street-lighting applications that uses a resonant rectifier as a power-factor corrector (PFC).
Chainarin Ekkaravarodome +5 more
core +2 more sources
Molecular Oncology, EarlyView.This study indicates that Merkel cell carcinoma (MCC) does not originate from Merkel cells, and identifies gene, protein & cellular expression of immune‐linked and neuroendocrine markers in primary and metastatic Merkel cell carcinoma (MCC) tumor samples, linked to Merkel cell polyomavirus (MCPyV) status, with enrichment of B‐cell and other immune cell
Richie Jeremian +10 more
wiley +1 more source
Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids
Molecular Oncology, EarlyView.This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici +8 more
wiley +1 more source
A New Efficient Step-Up Boost Converter with CLD Cell for Electric Vehicle and New Energy Systems
Energies, 2020 An increase in demand for renewable energy resources, energy storage technologies, and electric vehicles requires high-power level DC-DC converters. The DC-DC converter that is suitable for high-power conversion applications (i.e., resonant, full-bridge ...
Muhammad Zeeshan Malik +6 more
doaj +1 more source
Research on Transformer Noise Suppression Based on Redundant Convolutional Encoder Decoder
Zhongguo dianli, 2023 The acoustic signal generated during the operation of the transformer is an important basis for evaluating the operation status of the transformer and the noise level of the substation.
Quanjin XIN +4 more
doaj +1 more source
Energies, 2019 This paper presents analysis, diagnosis and disposal with a typical internal breakdown failure of the resin impregnated paper (RIP) valve side bushing in high voltage direct current (HVDC) converter transformer.
Hao Tang +4 more
semanticscholar +1 more source
Molecular Oncology, EarlyView.This study investigated how PYCR1 inhibition in bone marrow stromal cells (BMSCs) indirectly affects multiple myeloma (MM) cell metabolism and viability. Culturing MM cells in conditioned medium from PYCR1‐silenced BMSCs impaired oxidative phosphorylation and increased sensitivity to bortezomib.
Inge Oudaert +13 more
wiley +1 more source