Results 31 to 40 of about 26,491 (264)

Design Guidelines for High-Power and High-Frequency Transformers

2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019
In power electronics, the tendency to increase power and frequency (in the range of several MHz) has become an actual concern and leads to challenging design of the magnetic components. The traditional design methods need to be adapted to this demand, since high frequency effects in the core behavior need to be considered, and parasitic elements play a
Salinas López, Guillermo, Giménez Bravo, Álvaro, Oliver Ramírez, Jesús Angel, Prieto López, Roberto   +3 more
openaire   +2 more sources

Improving Vision Transformers by Revisiting High-Frequency Components

, 2022
The transformer models have shown promising effectiveness in dealing with various vision tasks. However, compared with training Convolutional Neural Network (CNN) models, training Vision Transformer (ViT) models is more difficult and relies on the large-scale training set.
Jiawang Bai, Li Yuan 0007, Shu-Tao Xia, Shuicheng Yan, Zhifeng Li 0001, Wei Liu 0005   +5 more
openaire   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

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

Energies
Partial discharge, as an important indicator of insulation degradation in transformers, is a crucial means of assessing the insulation performance of transformers.
Zhiqin Ma, Linglong Cai, Dan Zhou, Aihui Wen, Shuo Jiang, Chunyao Lin, Yuan Wang   +6 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Features of the high frequency power transformer calculation

Nauka 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

Energies
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, Zhenhua Li, Zhenxing Li, Lei Zhang, Chenyi Yang   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

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

FEBS 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, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source