Results 41 to 50 of about 82,647 (261)

Active-Clamp Dual-Transformer ZVS Flyback Converter

open access: yesEnergies
In order to upgrade the ability of the traditional flyback converter to transfer energy to the load, a dual-flyback converter with two active clamping circuits is added, using the same clamping capacitor to recover the leakage inductance energy ...
Pei-Ching Tseng   +3 more
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Performance comparison and analysis of quasi resonant and active clamp flyback converters

open access: yesDianzi Jishu Yingyong
High frequency, high efficiency, and high power density have become important design indicators for AC-DC converters. Traditional quasi resonant flyback converters, due to their reliance on passive resistive components to release leakage energy in the ...
Liu Zhibin, Pan Yongxiong, Wu Jianhong
doaj   +1 more source

Autism-associated mutations in the CaVβ2 calcium-channel subunit increase Ba2+-currents and lead to differential modulation by the RGK-protein Gem

open access: yesNeurobiology of Disease, 2020
Voltage-gated calcium-channels (VGCCs) are heteromers consisting of several subunits. Mutations in the genes coding for VGCC subunits have been reported to be associated with autism spectrum disorder (ASD).
Patrick Despang   +5 more
doaj   +1 more source

Origin of the Phosphoprotein Phosphatase (PPP) sequence family in Bacteria: Critical ancestral sequence changes, radiation patterns and substrate binding features

open access: yesBBA Advances, 2021
Background: Phosphoprotein phosphatases (PPP) belong to the PPP Sequence family, which in turn belongs to the broader metallophosphoesterase (MPE) superfamily.
David Kerk   +5 more
doaj   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Off-clamp robotic partial nephrectomy: Points of technique

open access: yesUrology Video Journal, 2023
Objective: To present a stepwise approach to off-clamp robotic partial nephrectomy (RPN), focusing on tips and tricks. Patients and surgical procedure: Two emblematic cases are presented to describe the technique.
Riccardo Bertolo   +4 more
doaj   +1 more source

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska   +5 more
wiley   +1 more source

An interleaved high step‐up DC–DC converter with ZVS capability for renewable energy systems applications

open access: yesIET Power Electronics, 2021
In this paper, an interleaved zero voltage switching high step‐up converter based on active clamp, coupled inductor (CI), built‐in transformer (BIT), and switched capacitor (SC) is proposed.
Alireza Bagherian   +3 more
doaj   +1 more source

Key determinants of the dual clamp/activator function of Complexin

open access: yeseLife, 2023
Abstract Complexin determines magnitude and kinetics of synchronized secretion, but the underlying molecular mechanisms remained unclear. Here, we show that the hydrophobic face of the amphipathic helix at the C-terminus of Complexin II (CpxII, amino acids 115- 134) binds to fusion-promoting SNARE proteins, prevents premature secretion ...
Mazen Makke   +6 more
openaire   +3 more sources

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