Results 101 to 110 of about 58,986 (277)
Research on Switching Characteristics of 3 300 V Full SiC MOSFET Power Module
机车电传动, 2020 Depending on the advantages of SiC MOSFET with faster switching and lower on-state losses, the switching characteristics of a 3 300 V full SiC MOSFET device were studied to make better use of the device. Firstly, the switching processes of the SiC device
Kangkang SUN +5 more
doaj
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Design of a Tri-linked Symmetry IGCT Phase Module with Compact Structure
Kongzhi Yu Xinxi Jishu, 2015 It designed a tri-linked structural symmetry IGCT phase module based on NPC three-level circuit with high density and high reliability. Its electrical design, press mounting design and water-cooling design are highly integrated within one unit.
LI Yanyong, HU Jiaxi, SUN Baotao
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‘Guide and Prejudice’— How Argonautes recognize targets across domains of life
FEBS Letters, EarlyView.Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
High Frequency Snubber Circuit for SiC MOSFET Module
Kongzhi Yu Xinxi Jishu, 2016 During high frequency switching condition, overvoltage caused by the coupling oscillation between distributed parameters(inductance, capacitor) on Silicon Cabide(SiC) device will easily lead to breakdown damage of devices and the generated ...
LUO Jianbo, FAN Wei, PENG Kai
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FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
Application of Low Stray Inductance Bus-bar Technology in IGBT Converter
Kongzhi Yu Xinxi Jishu, 2012 It studied laminated busbars which were widely used in IGBT converters, analyzed the generation of overvoltage on switching devices and the way to limit them. The basic model of laminated busbar was established.
CHEN Mingyi +3 more
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The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source