Results 71 to 80 of about 153,808 (271)

Comparison between unipolar and bipolar single phase grid-connected inverters for PV applications [PDF]

open access: yes, 2007
An inverter is essential for the interfacing of photovoltaic panels with the AC network. There are many possible inverter topologies and inverter switching schemes and each one will have its own relative advantages and disadvantages.
Ahfock, Tony, Bowtell, Les
core   +5 more sources

An Experimental Investigation and Feasibility Analysis of a Novel Modified Vienna Rectifier for Harmonic Mitigation in an Induction Heating System

open access: yesMachines, 2023
This paper presents a novel single-phase modified Vienna rectifier (MVR) for the harmonic mitigation and power factor improvement of an induction heating (IH) system.
Rahul Raman   +7 more
doaj   +1 more source

A Density Functional Theory based study of Electron Transport Through Ferrocene Compounds with Different Anchor Groups in Different Adsorption Configurations of A STM-setup

open access: yes, 2018
In our theoretical study where we combine a nonequilibrium Green's function (NEGF) approach with density functional theory (DFT) we investigate compounds containing a ferrocene moiety which is connected to i) thiol anchor groups on both sides in a para ...
Stadler, Robert, Zhao, Xin
core   +1 more source

Opening closed inward rectifier potassium channel doors

open access: yesBritish Journal of Pharmacology, EarlyView.
Inwardly rectifying potassium (KIR) channels are essential regulators of membrane potential in excitable and non‐excitable tissues. Although KIR channels exhibit a biophysical preference for potassium influx due to voltage‐dependent block of outward current by polyamines and Mg2+, under physiological conditions, they predominantly mediate K+ efflux ...
Anna Stary‐Weinzinger   +3 more
wiley   +1 more source

Comparison of Current Balancing Configurations for Primary Parallel Isolated Boost Converter [PDF]

open access: yes, 2011
Different current balancing configurations have been investigated for Primary Parallel Isolated Boost Converter (PPIBC). It has been shown that parallel branch current balancing is possible with several configurations of coupled/uncoupled inductors ...
Andersen, Michael A. E.   +4 more
core   +2 more sources

World Beliefs Moderate the Effects of Trauma and Severe Illness on Emotional Distress

open access: yesJournal of Personality, EarlyView.
ABSTRACT Objective Severe illness and trauma can cause significant psychological distress, but individuals differ in their responses. This research tested whether world beliefs—fundamental assumptions about the nature of the world—moderate the relationship between negative life experiences and emotional distress.
Nicholas Kerry   +7 more
wiley   +1 more source

A Space Vector Switching Pattern Hysteresis Control Strategy in VIENNA Rectifier

open access: yesIEEE Access, 2020
The conventional hysteresis current control (C-HCC) in VIENNA rectifier is one of the simplest and economic strategies. However, current harmonics content and switching number are high, and the coupling among the three-phase cannot be eliminated.
Yan Li, Hongyan Zhao
doaj   +1 more source

Model predictive duty cycle control for three‐phase Vienna rectifiers

open access: yesIET Power Electronics, 2022
The Vienna rectifiers are widely used in industrial applications. The computationally efficient optimal switching sequence model predictive control directly optimizes the switching sequences.
Bo Xu   +3 more
doaj   +1 more source

Whose knowledge, whose cure? traditional medicine and the boundaries of WIPO's 2024 genetic resources treaty

open access: yesThe Journal of World Intellectual Property, EarlyView.
Abstract Traditional medicine—including complementary, integrative, Indigenous, and ancestral practices—remains a vital source of healthcare for billions worldwide, particularly in the Global South. Despite its widespread use and biomedical relevance, traditional medicinal knowledge has long been excluded from dominant intellectual property systems ...
Tolulope Anthony Adekola
wiley   +1 more source

New Boost-Type PFC MF-Vienna PWM Rectifiers with Multiplied Switching Frequency

open access: yesAdvances in Electrical and Computer Engineering, 2015
In this paper new three-level boost-type PFC PWM rectifiers with Multiplied-switching-Frequency (MF) are presented. They can work both at high and low switching frequency for single- and for three-phase unity-power-factor applications.
FLORICAU, D.   +2 more
doaj   +1 more source

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