Results 71 to 80 of about 16,886,684 (287)

Overvoltage Protection for High Frequency High Voltage Power Transformers

Eletrônica de Potência, 2019
Transformers with high-voltage operation may have undesired behavior due to the effects of their parasitic elements. In power electronics applications, if the primary voltage has harmonics, transformer resonances may be excited, causing high primary ...
Diego Teruo Mendes de Souza, Bruno Valverde, José Antenor Pomilio   +2 more
doaj   +1 more source

Prospecting the protein design landscape

FEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona, Katharina T. Stonig, Jens Meiler, Clara T. Schoeder, Monica L. Fernández‐Quintero   +4 more
wiley   +1 more source

HETMCL: High-Frequency Enhancement Transformer and Multi-Layer Context Learning Network for Remote Sensing Scene Classification

Sensors
Remote Sensing Scene Classification (RSSC) is an important and challenging research topic. Transformer-based methods have shown encouraging performance in capturing global dependencies.
Haiyan Xu, Yanni Song, Gang Xu, Ke Wu, Jianguang Wen   +4 more
doaj   +1 more source

Design optimization of high frequency transformer with controlled leakage inductance for current fed dual active bridge converter

AIP Advances, 2018
Current fed dual active bridge converters for photovoltaic generation may typically require a given leakage or extra inductance in order to provide proper control of the currents. Therefore, the many researches have been focused on the leakage inductance
Tae-Uk Jung, Myung-Hwan Kim, Jin-Hyung Yoo   +2 more
doaj   +1 more source

Transforming characteristics of the Rogowski coil current transformer with a digital integrator for high-frequency signals

The Journal of Engineering, 2019
The Rogowski coil current transformer is widely used in intelligent substations for its rapid response, wide bandwidth measurement, and non-magnetic saturation.
Fubin Pang, Yu Liu, Jianfei Ji, Chi Zhang   +3 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

FEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos, Antonia Petropoulou, Alexandra Anastogianni, Angelina Bania, Vassilis Stamatakis, Argyris Alexiou, Chi‐Ping Day, Glenn Merlino, Katerina Grafanaki, Constantinos Stathopoulos   +9 more
wiley   +1 more source

Modeling Simulation of Variable Frequency Transformer and Its Analysis

Gong-kuang zidonghua, 2012
Connecting two asynchronous power networks by use of high voltage DC method has problems of harmonic interference, commutation failure, difficult implement of smooth power regulation and so on at present.
YANG Wen-gang, HE Cheng, WANG Fu-liang
doaj  

Optimized coil arrangement for integrating leakage inductance in high-frequency transformers of dual active bridge converters

Scientific Reports
Dual Active Bridge (DAB) converters offer bidirectional power flow and soft-switching capabilities, making them attractive for high-frequency power conversion applications.
Kianoush Yadollahi, Adel Zakipour
doaj   +1 more source

Design of LLC Magnetically Integrated Transformer Based on Nanocrystalline Soft Magnetic Composite Leakage Core

CES Transactions on Electrical Machines and Systems
Magnetic integration technology can reduce the printed circuit board (PCB) size of inductor-inductor-capacitor (LLC) converters. However, conventional methods for adjusting leakage inductance by modifying the transformer's air gap exhibit low sensitivity
Kaimeng Shi, Dianhai Zhang, Xuanzhe Zhao, Ziyan Ren   +3 more
doaj   +1 more source