Results 101 to 110 of about 57,287 (288)
Controle de um conversor CA-CC trifásico PWM de três níveis com fator de potência unitário utilizando DSP [PDF]
, 2003 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia Elétrica.O presente trabalho aborda o desenvolvimento e a implementação do controle de um retificador pré-regulador trifásico PWM de ...
Mussa, Samir Ahmad
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Association Between Genetic Ancestry and Multiple Sclerosis Severity
Annals of Neurology, EarlyView.Objective The objective of this study was to determine whether genetic ancestry is associated with differences in the clinical course of multiple sclerosis (MS). Methods Participants with MS living in the United Kingdom >18 years old were recruited from 2021 to 2025 and genotyped from saliva using a commercial array. Genetic ancestry was inferred using
Benjamin M. Jacobs +32 more
wiley +1 more source
A New Symmetrical Cascaded Single Phase H Bridge Inverter With Reduced Switch Count [PDF]
E3S Web of ConferencesAn imaginative multilevel inverter topology is presented with the intent of deploy few series connected switches, ameliorate modularity and derogatory voltage stress collate to unremarkable topologies which is published in literature [1] and [2].
Kumar Dinesh +3 more
doaj +1 more source
Annals of Neurology, EarlyView.Objective The objective of this study was to explore the association between 18 kDa translocator protein (TSPO)‐positron emission tomography (PET)–measurable glial activation and serum chitotriosidase (CHIT1) in people with multiple sclerosis (pwMS), and its expression in postmortem MS brain tissue.
Venla Ahola +14 more
wiley +1 more source
Concepção e análise de retificadores híbridos trifásicos unidirecionais [PDF]
, 2008 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Neste trabalho aborda-se o estudo de retificadores híbridos trifásicos unidirecionais para aplicações em potências elevadas. O
Alves, Ricardo Luiz
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Generalized formulation of multilevel selective harmonic elimination PWM: Case I-Non-Equal DC Sources [PDF]
, 2006 The paper presents optimal solutions for eliminating harmonics from the output waveform of a multilevel staircase pulse-width modulation (PWM) method with non-equal dc sources.
Dahidah, M.S.A., Agelidis, V.G.
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HCM-PWM) for Grid-Connected Converters
, 2020 Multilevel converters become more and more interesting for renewable energies and energy storage systems. Various modulation techniques such as high-frequency modulation approaches (e.g., space vector modulation and phase shift-PWM) and low-frequency ...
Jonathan W. Kimball +5 more
core +1 more source
Epileptic Disorders, EarlyView.Abstract Objectives This study evaluates immunotherapy in drug‐resistant epilepsy (DRE) patients with concern for autoimmune encephalitis‐associated epilepsy (AEAE) but negative neural antibody testing (−Ab). Methods A retrospective cohort study, focusing on patients treated at our Epilepsy Monitoring Unit (EMU) from January 2018 to May 2022.
Norah A. ALKhaldi +5 more
wiley +1 more source
Energy Science &Engineering, EarlyView.Deployment of an aging‐based controller during designing of optimal lithium‐ion battery—supercapacitor (LB‐Sc) hybrid energy storage system (HESS) capacity, in off‐grid IREMGs, improves performance of the LB and reduces its aging rate. Also, annualised cost of the LB‐Sc HESS improves by 33.15% in relation to optimal LB SESS.
Isaac Gwayi +2 more
wiley +1 more source
, 2021 Arduinoマイコンなどにおけるディジタル出力端子を利用して、アナログ出力を達成する方法の一つとしてPWM（Pulse Width Modulator）の紹介をしたいと思います。 オンとオフを高速で切り替える前提の下で、オン時間とオフ時間をうまく設定することで、疑似的に一定のアナログ値を出していることと同じ動作を実現できます。オンオフの切り替えのスピードは対象とするデバイスの時定数などに依存し、十分な速さでの切り替えが前提の手法となっています。 以上がPWMの説明でした。https://www ...
岡島, 寛 +4 more
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