Results 41 to 50 of about 41,316 (141)
Design and Analysis of Three-Phase Three-Level PWM Inverter [PDF]
, 2010 Design of three-phase three level PWM inverter and analysis of the output current harmonics are presented in this paper. The three-level inverter is designed to supply three-phase load and it is controlled by FPGA under several modulation techniques ...
Dahono, Pekik Argo
core
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
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
Measurement of PD in Operating Motors Fed by Voltage Source PWM Drives
, 2017 On-line partial discharge (PD)measurement is now widely applied to motors rated 6 kV and above that are fed from the 50/60 Hz power system. However, many motors are being powered from invertors which facilitate variable speed motors to improve process ...
Howard G. Sedding +2 more
core +1 more source
Energy Science &Engineering, EarlyView.Small‐scale biogas upgrading can improve methane quality but remains financially unattractive to individual rural households. Community‐scale implementation substantially lowers energy costs, demonstrating that economies of scale are critical to making purified biogas a viable clean‐cooking option in Tanzania.
Emmanuel Nsekela +5 more
wiley +1 more source
Análise modelagem e controle de retificadores PWM trifásicos [PDF]
, 2005 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho apresenta uma análise, proposição de novos modelos, e estratégias de controle das correntes de entrada, sem a ...
Borgonovo, Deivis
core
Digitally-implemented naturally sampled PWM suitable for multilevel converter control [PDF]
, 2003 For dynamic closed loop control of a multilevel converter with a low pulse number (ratio of switching frequency to synthesized fundamental), natural sampled pulse-width modulation (PWM) is the best form of modulation.
Walker, Geoffrey R.
core +1 more source
Sub-assembly experiments to determine PWM supply-induced losses in electric machines
The Journal of Engineering, 2019 This paper presents a low-cost approach to experimentally characterise the effect of the inverter supply on the losses in an electrical machine. The set-up comprises of representative subassemblies of the stator and winding, referred to as ‘motorettes ...
Jonathan Godbehere +4 more
doaj +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Transmit (B1+) and receive (B1−) sensitivities of parallel‐transmit/receive RF array are a prerequisite for modern ultra‐high‐field MRI. Their accurate mapping remains challenging for coils with high transmit dynamic range, particularly in regions with low combined‐mode B1+ magnitude, where standard reconstruction is impaired by noise.
Natalia Dudysheva +5 more
wiley +1 more source