Results 81 to 90 of about 1,240,387 (295)

Analysis of influence factors of polarization spectrum method on state detection of transformer oil-paper insulatio

Gong-kuang zidonghua, 2014
Application principle of polarization spectrum method based on recovery voltage method was introduced which was used in state detection of transformer oil-paper insulation, and a viewpoint was pointed out that main time constant of polarization spectrum ...
TAO Fengyuan, ZHANG Dong, DONG Xinsheng, WANG Shirong   +3 more
doaj   +1 more source

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter, Jens‐Peter Schenk, Jenny Wegert, Manfred Gessler, Leo Kager, Stefan Wagenpfeil, Marina Müller, Jean‐Michel Wolff, Joerg Fuchs, Steven W. Warmann, Clemens‐Magnus Meier, Jochen Hubertus, Christian Rübe, Christian Vokuhl, Patrick Melchior, Lena Tschirner, Norbert Graf, Rhoikos Furtwängler   +17 more
wiley   +1 more source

Monitoring of SiC MOSFET junction temperature with on-state voltage at high currents

Chinese Journal of Electrical Engineering, 2020
A junction temperature monitoring method has been presented based on the on-state voltage at high currents. With a simplified physical model, this method mapped the relationship between junction temperature and on-state voltage. The tough calibration and signal sensing issues are solved.
Dan Zheng, Yuhui Kang, Han Cao, Xiaoguang Chai, Tao Fan, Puqi Ning   +5 more
openaire   +1 more source

Nonlinear stochastic discrete drift-diffusion theory of charge fluctuations and domain relocation times in semiconductor superlattices

, 2002
A stochastic discrete drift-diffusion model is proposed to account for the effects of shot noise in weakly coupled, highly doped semiconductor superlattices.
A. Amann, D. Sánchez, H.T. Grahn, J. Kastrup, J. Kastrup, J. Soler, K.J. Luo, L. L. Bonilla, L.L. Bonilla, M. Rogozia, M. Rogozia, O. Sánchez, R. Aguado, Y. Shimada, Ya.M. Blanter   +14 more
core   +1 more source

Improving QC Relaxations of OPF Problems via Voltage Magnitude Difference Constraints and Envelopes for Trilinear Monomials

, 2018
AC optimal power flow (AC~OPF) is a challenging non-convex optimization problem that plays a crucial role in power system operation and control. Recently developed convex relaxation techniques provide new insights regarding the global optimality of AC ...
Crow, Mariesa L., Molzahn, Daniel K., Narimani, Mohammad Rasoul   +2 more
core   +1 more source

Feasibility and Safety of High‐Dose Proton Re‐Irradiation in Recurrent Pediatric Central Nervous System Tumors: A Single‐Institution Retrospective Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Pediatric central nervous system (CNS) tumors often recur despite multimodality therapy. Although re‐irradiation (re‐RT) has historically been limited by concerns for severe late toxicities, modern techniques have renewed interest in this approach. Proton therapy provides dosimetric advantages that may enable curative re‐treatment with
Jin‐Ho Song, Jonathan Baron, Carlos Chavez Perez, Sidharth Ramesh, Jane Minturn, Kavita A. Desai, Amish C. Shah, Jean M. Belasco, Kristina A. Cole, Michael J. Fisher, Phillip B. Storm, Peter M. Madsen, Goldie Kurtz, Robert A. Lustig, Christine Hill‐Kayser, Michael J. LaRiviere   +15 more
wiley   +1 more source

Key Techniques of SiC MOSFET Chip Design and its Development Trend

Kongzhi Yu Xinxi Jishu, 2017
It introduced the application advantages of SiC MOSFET and determined an optimized design of drift layer structure based on the theory of ideal blocking characteristics and on-state resistance.
GAO Yunbin, LI Chengzhan, JIANG Huaping
doaj  

A selection principle of submodule switching state vectors for switching frequency reduction in voltage self‐balancing half‐bridge modular multilevel converters

IET Power Electronics
The problem of submodule switching frequency reduction in half‐bridge modular multilevel converters (HB‐MMCs) with capacitor voltage self‐balancing control is considered and explored in this paper.
Yiyuan Zhou, Liang Qin, Shiqi Yang, Qing Wang, Kaipei Liu   +4 more
doaj   +1 more source

An Novel Thin Layer SOI Carrier-Stored Trench LIGBT With Enhanced Emitter Injection

IEEE Journal of the Electron Devices Society, 2019
An novel thin layer SOI carrier-stored (CS) trench lateral insulated gate bipolar transistor (TLIGBT) with diode-clamped P-shield layer is proposed. The potential of the P-shield layer is clamped by two series-connected diodes.
Bo Yi, Jia Lin, Jiayu Wu, Moufu Kong, Xingbi Chen   +4 more
doaj   +1 more source

The role of conformational diffusion in ion channel gating

, 2003
We consider an exactly tractable model of the Kramers type for the voltage-dependent gating dynamics of single ion channels. It is assumed that the gating dynamics is caused by the thermally activated transitions in a bistable potential.
Bezanilla, Blatz, Bässler, Colquhoun, Condat, de Gennes, Dobson, Frauenfelder, Frauenfelder, Goychuk, Hille, Hodgkin, Hänggi, Igor Goychuk, Jiang, Liebovitch, Läuger, Mainen, Mercik, Metzler, Millhauser, Moore, Peter Hänggi, Ring, Rodriguez, Salman, Sansom, Sigg, Yellen   +28 more
core   +1 more source