Results 41 to 50 of about 440,289 (298)
Emerging experimental and computational methods for studying redox‐regulated structural transitions
FEBS Letters, EarlyView.Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass +2 more
wiley +1 more source
900 V GaN-based sine-wave inverters for three-phase industrial applications
The Journal of Engineering, 2019 GaN devices are gradually getting attention within the industry along with SiC as a potential wide bandgap device. At present, there are almost no high-voltage GaN devices with voltage >650 V, which makes an inverter design difficult for a three-phase ...
Nilanjan Mukherjee +3 more
doaj +1 more source
Comprehensive review of nonisolated bridgeless power factor converter topologies
IET Circuits, Devices and Systems, 2021 The intention of this study is to provide a critical review of single‐phase nonisolated bridgeless power factor converter topologies, which will be useful for novice researchers in the power electronics field.
Ankit Kumar Singh +3 more
doaj +1 more source
A Four-Quadrant Switched Capacitor DC-DC Convertor Enabling Power-Efficient Lab-Grade Potentiostats [PDF]
2020 IEEE 20th Mediterranean Electrotechnical Conference ( MELECON), 2020 This paper presents a low-power potentiostat based on a four-quadrant switched capacitor DC-DC convertor for use in lab applications. The gearbox convertor achieves a compliance voltage of ±2.5V. Through the use of frequency scaling, the convertor features output currents in the range of 1µA to 1mA, outclassing other state-of-the-art power efficient ...
Swiggers, Matthias +4 more
openaire +2 more sources
Formulation of the energy-storage factor for isolated power convertors using integrated magnetics
, 2005 The energy storage in energy-storage components is examined for isolated power convertors. In addition to the basic convertors such as the flyback and forward, the paper also develops the analysis for the various isolated versions of power convertors as ...
Cheng, KWE, Lu, Y, K.W.E. Cheng, Y. Lu
core +1 more source
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
Generic spice compatible model of current feedback in switch mode convertors
Electronics Letters, 1992 The mechanism of duty cycle generation in current mode (CM) and average current mode (ACM) PWM convertors is examined and found to be identical except for the functional relationship of the controlling parameters. This result is used to develop a SPICE compatible and topology independent generic current mode (GCM) model.
S. Ben-Yaakov, Z. Gaaton
openaire +1 more source
FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Novel capacitance-ratio-independent switched-capacitor digital-analogue convertor
Electronics Letters, 1989 A novel switched-capacitor (SC digital-to-analogue (D/A) convertor is presented which exhibits high linearity owing to a capacitance-ratio-independent conversion algorithm. The core of the convertor consists of an SC circuit which processes the digital word, bit-by-bit, by integrating the reference voltage for a number of time slots corresponding to ...
J.C. Vital, J.E. Franca
openaire +1 more source