Results 31 to 40 of about 2,619 (224)

Research on adaptability of fastening force for 6-inch IGCTs

机车电传动, 2023
As a high-power fully controlled press-pack device, IGCT's design of fastening force is crucial for its characteristics with the expansion of device diameter and the increase of cascade devices. Taking the 6-inch 6 000 A/4 500 V reverse blocking IGCT as
CAO Qiang, CHEN Fanglin, CHEN Yongmin, LIU Yalan, SUN Yongwei   +4 more
doaj  

Design of Converter Stations of Zhuhai“Internet +”Flexible DC Distribution Network

南方能源建设, 2020
[Introduction] The“Internet plus”Project between urban and industrial park in support of the revolution of power consumption (abbr.“Internet +”project) successfully pilots multi-voltage multi-terminal flexible DC distribution network technology. [Method]
ZHANG Minghan, JIAN Xianghao, LU Zikai
doaj   +1 more source

The Stripe Fortified GCT:A new GCT design for maximizing the controllable current [PDF]

, 2014
In this paper we introduce a new GCT design, namely the Stripe Fortified GCT, for the purpose of maximizing the controllable current by optimizing the current flow path in the device during turn-off.
Antoniou, M., Arnold, M., Lophitis, N., Nistor, I., Rahimo, M., Udrea, F., Vobecky, J., Wikstrom, T.   +7 more
core   +1 more source

Phi_0 - Periodic Aharonov-Bohm Oscillations Survive Ensemble Averaging

, 1993
We have demonstrated that Phi_0 periodic Aharonov--Bohm oscillations measured in a ensemble of rings may survive after ensemble averaging procedure. The central point is the difference between the preparation stage of the ensemble and the subsequent ...
A. Altland, A. D. Stone, A. Kamenev, A. Schmid, Alex Kamenev, B. L. Altshuler, D. Mailly, E. Akkermans, F. von Oppen, H. Bouchiat, H. F. Cheung, M. Murat, Y. Imry, Y. Imry, Yuval Gefen   +14 more
core   +1 more source

Semiconductor devices in solid-state/hybrid circuit breakers: current status and future trends [PDF]

, 2017
Circuit breakers (CBs) are the main protection devices for both alternating current (AC) and direct current (DC) power systems, ranging from tens of watts up to megawatts.
Alan J. Watson, Alberto Castellazzi, Bin, Carlson, Chunyang Gu, Francis Effah, Huaren, Min Cheol, Pat Wheeler   +8 more
core   +1 more source

Noise Simulations For an Inverse-Geometry Volumetric CT System [PDF]

, 2004
This paper examines the noise performance of an inverse-geometry volumetric CT (IGCT) scanner through simulations. The IGCT system uses a large area scanned source and a smaller array of detectors to rapidly acquire volumetric data with negligible cone ...
Fahrig, Rebecca, Pelc, Norbert J., Schmidt, Taly Gilat   +2 more
core   +1 more source

Control strategy of novel hybrid commutated converter based on reverse blocking integrated gate commutated thyristor for commutation failure mitigation

High Voltage, Volume 10, Issue 3, Page 546-554, June 2025.
Abstract Commutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on reverse blocking integrated gate commutated thyristor, which can utilise two methods for ...
Zongze Wang, Zhanqing Yu, Lu Qu, Zhichang Yuan, Kangsheng Cui, Jian Shi, Biao Zhao, Rong Zeng   +7 more
wiley   +1 more source

Dynamic analysis of immune status in patients with intracranial germ cell tumor and establishment of an immune risk prognostic model

Frontiers in Immunology, 2022
IntroductionImmune status was evaluated by means of lymphocyte subset counts and immune factors in cancer. This study analyzed the peripheral blood immune index and survival outcomes in intracranial germ cell tumor (iGCT) patients.MethodsPeripheral blood
Hairong Wang, He Huang, Xiaoping Lin, Peidong Chi, Hongyu Chen, Jiangen Chen, Yonggao Mou, Zhongping Chen, Qunying Yang, Chengcheng Guo   +9 more
doaj   +1 more source

Preliminary Feasibility of Dedicated Breast CT With an Inverse Geometry [PDF]

, 2009
In this study we theoretically investigated the minimum scan time of an inverse-geometry dedicated breast CT system that provides sufficient sampling and dose equivalent to mammography without exceeding the limits of source power or detector count rate ...
Gilat-Schmidt, Taly
core   +1 more source

Geometry Analysis of an Inverse-Geometry Volumetric CT System With Multiple Detector Arrays [PDF]

, 2004
An inverse-geometry volumetric CT (IGCT) system for imaging in a single fast rotation without cone-beam artifacts is being developed. It employs a large scanned source array and a smaller detector array. For a single-source/single-detector implementation,
Fahrig, Rebecca, Mazin, Samuel R., Pelc, Norbert J., Schmidt, Taly Gilat, Solomon, Edward G.   +4 more
core   +1 more source