Results 71 to 80 of about 108,139 (315)

Test of A/D Converters [PDF]

open access: yes, 2008
Converter testing is a complex process. Test specifications are application dependent and in most cases require sophisticated stimulus generation and, response analysis equipment. The processing of sampled data to generate specification measurements also
Lechner, Andreas, Richardson, Andrew
core  

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS 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

Digital Twin Approach for Fault Diagnosis in Photovoltaic Plant DC–DC Converters

open access: yesSensors
This article presents a hybrid fault diagnosis framework for DC–DC converters in photovoltaic (PV) systems, combining digital twin (DT) modelling and detection with machine learning anomaly classification.
Pablo José Hueros-Barrios   +6 more
doaj   +1 more source

Família de retificadores PWM unidirecionais três-níveis híbridos a capacitor chaveado com elevado fator de potência [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2015.Esta tese de doutorado tem por objetivo a proposta de uma nova família de conversores ca-cc três níveis ...
Cortez, Daniel Flores
core  

Catalytic converters: Enhancing Green Chemistry and Their Technological Implications

open access: yes, 2023
This study looks into how important catalytic converters are to the development of green chemistry and how that affects the sustainability of the environment.
Mohammad, Farhan
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Optimal Dynamic Analysis of Electrical/Electronic Components in Wind Turbines

open access: yesEnergies, 2017
Electrical and electronic components are very important subcomponents in modern industrial wind turbines. Complex multimegawatt wind turbines are continuously being installed both onshore and offshore, continuously increasing the demand for sophisticated
Fausto Pedro García Márquez   +4 more
doaj   +1 more source

Modeling of multilevel converters

open access: yesIEEE Transactions on Industrial Electronics, 1997
In this paper, the imbricated cells multilevel converters are studied and modeled from a control view point. These converters make use of several switches connected in a series, which allows using switches with reduced voltage ratings; these low voltage switches have lower conduction losses and can switch at higher frequency.
Meynard, Thierry   +2 more
openaire   +2 more sources

Microgrid power electronic converters: state of the art and future challenges

open access: yes, 2009
This paper presents a review of the state of the art of power electric converters used in microgrids. The paper focuses primarily on grid connected converters.
Sharkh, S.M.   +4 more
core  

Modified phase-shifted PWM control for flying capacitor multilevel converters

open access: yes, 2007
The issue of voltage imbalance remains a challenge for the flying capacitor multilevel converter. The phase-shifted pulsewidth modulation (PS-PWM) method has a certain degree of self-balancing properties.
Chunmei Feng   +5 more
core   +1 more source

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