Results 41 to 50 of about 1,922,635 (306)
Conversores CC-CC bidirecionais isolados simétricos com baixa ondulação de corrente [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2015Neste trabalho e apresentado o estudo de uma família de conversores CC-CC bidirecionais baseada na ...
Souza, Eduardo Valmir de
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Electrica: This article presents the performance evaluation of an isolated dual active half-bridge (DAHB) converter with discrete SiC MOSFET devices. The impact of a resonant network on the SiC MOSFET DAHB under two different modes is investigated.
Veera Venkata Subrahmanya Kumar Bhajana +3 more
doaj +1 more source
FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +1 more source
Step-Up DC-DC Switching Converter With Single Switch and Multi-Outputs Based on Luo Topology
IEEE Access, 2022 In this paper, a step-up DC-DC multi-output converter is introduced by integrating a super-lift Luo converter, flyback topology, and coupled inductor concept.
Fereshteh Ghasemi +2 more
doaj +1 more source
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
Impedance Shaping of Isolated Two-Stage AC-DC-DC Converter for Stability Improvement
IEEE Access, 2019 The isolated two-stage ac-dc-dc converter containing an isolated dual-active-bridge (DAB) dc-dc converter and an ac-dc rectifier has been widely used for connecting the dc sources to the ac utility grid. However, the impedance interaction between the DAB
Fan Feng, Fengjiang Wu, Hoay Beng Gooi
doaj +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
Conversores Push-Pull PWM CC-CC trifásicos alimentados em corrente [PDF]
, 2010 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2010In this thesis, a three-phase current-fed Push-Pull DC-DC converter and its version with active clamping ...
Andersen, Romero Leandro
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Energies, 2020 This paper presents a tightly regulated multi-output isolated converter that employs only an independently regulated synchronous Single-Switched Post-Regulator (SSPR). The proposed converter is a highly accurate single-ended secondary side post-regulator
Sang Gab Park +2 more
doaj +1 more source
Ain Shams Engineering Journal, 2021 The Electric vehicle supplied by the Polymer Electrolyte Membrane Fuel Cell is characterized by its efficiency as well as by lower air pollution in comparison with the classical vehicles.
Slah Farhani +2 more
doaj +1 more source