Results 51 to 60 of about 3,249 (197)

Ageing Behaviours and Mechanisms of SiC MOSFET and Si IGBT in DC Solid‐State Circuit Breaker

IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
We propose that this distributed thermal profile in IGBT mitigates localised stress. Conversely, the high concentration of thermal stress in SiC MOSFET's gate region leads to its severe ageing. ABSTRACT The rapid development of DC power systems in applications such as electric aircraft and microgrids has highlighted the need for high‐performance DC ...
Jiajia Song, Bo Zhang, Yanfeng Song
wiley   +1 more source

KIRGIZ BELGESEL SİNEMASINDA PROPAGANDA [PDF]

, 2013
In this thesisthe research is made about the Kyrgyz documentary film development which belongs to Soviet Unionfrom the historical point of view. The research is based on the introduction of propaganda concept and use of it by different states and mass ...
Regina CAMANKULOVA
core   +1 more source

An Overview of VSC‐HVDC Systems and Challenges to Harvest Wind Energy Potential Considering South Asian Region as a Case Study

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
The voltage source converter‐based high voltage direct current transmission (VSC‐HVDC) is considered the most appropriate option to harness the maximum potential of renewable energy, particularly offshore wind. With improved reliability and functionality of the network, reduced conversion losses, and reduced cost, the VSC‐based multiterminal direct ...
Muhammad Ahmad, Md Shafiullah, Muhammed Y. Worku, Md Shafiul Alam, Muhammad Khalid, Paul Adedeji   +5 more
wiley   +1 more source

Nikita Hruşov Döneminde SSCB ve Afrika Arasındaki İlişkiler

Ankara Üniversitesi SBF Dergisi, 2020
Hruşov yönetimindeki Sovyet Sosyalist Cumhuriyet Birliği, geçmiş liderlerle kıyasla Afrika siyasetinde değişikliğe gitmiş ve dolayısıyla olağandışı bir durum yaşanmıştır. Kıtanın özellikleri ve uluslararası konjonktürdeki değişiklikler, Moskova’nın bu olağandışı tutumunu ise olağan kılmıştır.
openaire   +4 more sources

Protection system considerations for DC distributed electrical propulsion systems [PDF]

, 2015
Distributed electrical propulsion for aircraft, also known as turbo-electric distributed propulsion (TeDP), will require a complex electrical power system which can deliver power to multiple propulsor motors from gas turbine driven generators.
Armstrong, M., Bollman, A., Burt, G., Davies, K., Galloway, S., Jones, C. E., Norman, P.   +6 more
core   +1 more source

A novel thyristor‐based hybrid DC circuit breaker with short arcing capability

High Voltage, Volume 9, Issue 6, Page 1288-1301, December 2024.
Abstract Multi‐terminal flexible high‐voltage direct current (HVDC) transmission and DC grid technology are developing rapidly. The hybrid DC circuit breaker (HCB) has broad application prospects in the field of HVDC transmission and DC power grid. Nevertheless, existing HCBs have one or more following blemishes: arc suppression scheme of mechanical ...
Guanlong Jia, Yuchen Yuan, Hongjiang Guo, Xiaoxue Wang, Feng Niu   +4 more
wiley   +1 more source

Investigation into the design of ultra-wideband (UWB) and multi-band antennas [PDF]

, 2006
University of Technology, Sydney. Faculty of Engineering.The rapid development of high speed wireless communications as well as other applications such as microwave imaging place extraordinary demands on spectrums for which ultra-wideband (UWB) and multi-
Qiu, X
core  

Hybrid cord blood banking in a private‐public‐partnership: Women's perspectives

Transfusion, Volume 64, Issue 7, Page 1270-1278, July 2024.
Abstract Background The increasing demand for umbilical cord blood (UCB) used in stem cell transplantation led to the establishment of cord blood (CB) banks worldwide. These include public foreign donor banks and private family‐directed donor banks. Recently, our department has introduced a third banking model within a private‐public‐partnership.
Jessica Laue, Johanna Ambühl, Daniel Surbek   +2 more
wiley   +1 more source

A Solid-State Circuit Breaker Based on Coupled-Inductor for Battery Energy Storage System

IEEE Access
In a battery energy storage system (BESS), short-current protection is critical and need to be designed carefully to enhance the system’s safety and reliability.
Kuo-Yuan Lo, Ting-Wei Huang, Kuo-Hsiang Liu   +2 more
doaj   +1 more source

Soliton Magnetization Dynamics in Spin-Orbit Coupled Bose-Einstein Condensates

, 2012
Ring-trapped Bose-Einstein condensates subject to spin-orbit coupling support localized dark soliton excitations that show periodic density dynamics in real space.
E. I. Rashba, E. I. Rashba, J. Brand, L. Pitaevskii, O. Fialko, S. V. Manakov, S. V. Manakov, U. Zülicke   +7 more
core   +1 more source