Results 91 to 100 of about 28,492 (307)
On computation of high frequency Hankel transforms
Alexandria Engineering Journal, 2019 In this paper, we consider to compute high frequency Hankel transforms numerically. An asymptotic quadrature rule is derived based on the variable upper bound integrals. The scheme is verified to be effective by testing some numerical examples.
Jizhong Gao, Ruyun Chen
openaire +2 more sources
COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells
Molecular Oncology, EarlyView.This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos +6 more
wiley +1 more source
Noise characteristics and prediction methods of operating converter transformers
电力工程技术Due to the presence of harmonics, the noise characteristics of converter transformers differ significantly from those of ordinary transformers. Currently, the mechanism through which harmonics affect noise is not clearly understood, necessitating ...
Guoyang HE +5 more
doaj +1 more source
Molecular Oncology, EarlyView.Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen +11 more
wiley +1 more source
High Frequency Transformer Modelling
, 2016 The aim of this poster is to describe the “Grey box" transformer model based on the basic geometry of the transformer which is suitable for calculation of transmitted overvoltages through the transformer in the time domain.
Jurišić, Bruno +3 more
openaire +2 more sources
Core loss behavior in high frequency high power transformers—I: Effect of core topology [PDF]
, 2012 This two-part paper presents an overview of core loss computations performed in both time and frequency domains in order to evaluate their behavior in single phase transformers with different core topologies.
Bahmani, Mohammad Amin +9 more
core +3 more sources
Applied SciencesMining frequency converters are the primary means for achieving variable frequency speed regulation of electromechanical equipment in coal mines, offering energy-saving benefits for coal mining enterprises.
Yiying Wang +5 more
doaj +1 more source
Quantitative Analysis Ageing Status of Natural Ester-paper Insulation and Mineral Oil-paper Insulation by Polarization/Depolarization Current [PDF]
, 2012 Polarization and Depolarization Current (PDC) technique is an effective tool to assess the condition of oil-paper insulation system in power transformers. So far the PDC behaviors of mineral oil-paper insulation have been widely investigated.
Yang, Lijun +4 more
core
Molecular Oncology, EarlyView.Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau +36 more
wiley +1 more source
SensorsThis paper presents the development and characterization of a reference high-voltage sensing chain for the calibration and conformity assessment of instrument transformers with Class 0.1-WB3, in the extended frequency range up to 150 kHz, according to ...
Mohamed Agazar +2 more
doaj +1 more source