Results 51 to 60 of about 22,401,602 (289)
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
core
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
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Analysis and design of SOI MEMS step up voltage converters
, 2013 Energy harvesting systems are becoming an increasingly popular area for research as they present themselves as a clean, renewable source of energy. There are currently some key design issues facing the development of these energy harvesting systems.
Gleeson, Rachel
core +1 more source
Design and Implementation of Nonisolated High Step-Up DC-DC Converter
International Transactions on Electrical Energy Systems, 2023 This article presents a novel structure for a high step-up DC-DC converter. The proposed converter offers several advantages, including a simple structure, high voltage gain, high efficiency, reduced voltage stress on the semiconductors, and fewer ...
Mehdi Zamani +5 more
doaj +1 more source
High step-up converter with capacity of multiple input
IET Power Electronics, 2012 In this paper, a multiple-input high step-up boost converter is presented for grid-connected photovoltaic power generation system. Firstly, the derivation of the converter with dual input is presented and its operation principle and steady state performance arc analyzed in detail.
L.-W. Zhou, B.-X. Zhu, Q.-M. Luo
openaire +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
Coupled‐inductor‐inverse high step‐up converter
IET Power Electronics, 2018 This study presents a novel high conversion gain converter with a tightly coupled‐inductor‐inverse for distributed generation system, where high conversion gain is regularly required. The new converter utilises coupled‐inductor‐inverse network for high conversion gain applications that is not presently comparable with the existing coupled inductor ...
Fei Li, Yu Yao, Zhi Wang, Hongchen Liu
openaire +1 more source
High‐step‐up enhanced super‐lift converter
IET Power Electronics, 2020 This study proposes a new high step‐up DC–DC converter based on a novel super‐lift structure and coupled inductor. The energy stored in the leakage inductance of the coupled inductor is recovered to the converter output, which leads to a snubber‐less operation and consequently a fewer‐component, lower‐cost and more‐efficient converter.
Mahdi Shirzadi +2 more
openaire +1 more source
Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry
FEBS Letters, EarlyView.EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri +5 more
wiley +1 more source