Results 41 to 50 of about 8,306,367 (352)
IEEE Open Journal of Power ElectronicsThe fault clearance time in the power system can vary from a few milliseconds to a few hundred milliseconds. Power electronics converters should be able to provide the increased current during faults without failing due to thermal limits. Hence, the heat
Shubhangi Bhadoria +2 more
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Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module
Energies, 2018 A high-power charging station for electric vehicles usually adopts a parallel structure of multiple power modules. However, due to the parameter differences among power modules, a parallel system always has circulating current issues.
Yixin Zhu +4 more
doaj +1 more source
Power Efficient Subcarrier Modulation for Intensity Modulated Channels
Optics Express, 2010 We compare formats for optical intensity modulation limited by thermal noise with the assumption of having ideal devices. At the same bitrate and bandwidth, a hitherto unknown format turns out to be more power efficient than known formats. This new modulation, which is a hybrid between on-off keying and phase-shift keying, belongs to the subcarrier ...
Johnny, Karout +2 more
openaire +2 more sources
Circuit for automatic load sharing in parallel converter modules [PDF]
, 1979 A nondissipative circuit for automatic load sharing in parallel converter modules having push-pull power transistors is presented. Each transistor has a separate current-sensing transformer and an impedance-adjusting transformer in series with its ...
Nagano, S.
core +1 more source
(\phi,\Gamma)-modules over noncommutative overconvergent and Robba rings [PDF]
, 2013 We construct noncommutative multidimensional versions of overconvergent power series rings and Robba rings. We show that the category of \'etale $(\varphi,\Gamma)$-modules over certain completions of these rings are equivalent to the category of \'etale $
Colmez +7 more
core +2 more sources
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
Non-destructive orientation mapping of die-attach lead-free solder
Applied Physics ExpressThermo-mechanical fatigue poses a serious challenge to the electrical operation of power semiconductor modules, manifested by the degradation of die-attach lead-free solder.
Yujiro Hayashi, Hidehiko Kimura
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Young module multiplicities and classifying the indecomposable Young permutation modules [PDF]
, 2015 We study the multiplicities of Young modules as direct summands of permutation modules on cosets of Young subgroups. Such multiplicities have become known as the p-Kostka numbers.
Gill, Christopher C.
core
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Research on on-Site Test Method for Flexible HVDC Converter Valve Power Module
南方能源建设, 2019 [Introduction] In flexible HVDC transmission systems, HVDC converter valve power modules and their spares are tested and maintained at regular intervals.
CAI Ming +4 more
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