Results 71 to 80 of about 557,453 (348)
A new modulation method for multilevel converters [PDF]
, 2016 This paper presents a simple method for modulation in multilevel converters, which is hardly affected with the number of levels. The method is based on a simple graph, whose x-axis is directly related to the extra degree of freedom associated with ...
Gordillo Álvarez, Francisco
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Glioma recurrence severely impacts patient prognosis, with current treatments showing limited efficacy. Traditional methods struggle to analyze recurrence mechanisms due to challenges in assessing tumor heterogeneity, spatial dynamics, and gene networks.
Lei Qiu +10 more
wiley +1 more source
Polynomials in modules. I. Vector spaces
Journal of Algebra, 1988 On the set of functions \(f: V\to W\), between R-modules, R an arbitrary commutative ring, one defines the operator \(A_ m\), \((A_ mf: V^ m\to W,\) \((A_ mf)(x)=\sum_{S\subset \{1,2,...,m\}}(-1)^{m-| S|}f(\sum_{i\in S}x_ i),\) \((\forall)\) \(x\in V^ m\), \(x=(x_ 1,x_ 2,...,x_ m)\), \(x_ i\in V\) [\textit{M.
openaire +1 more source
3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response
Advanced Engineering Materials, EarlyView.A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley +1 more source
DIRECT TORQUE CONTROL OF MULTI-PHASE INDUCTION MOTOR WITH FUZZY LOGIC SPEED CONTROLLER
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2017 The paper presents the Direct Torque Control with Space Vector Modulation (DTC-SVM) of seven-phase induction motor with Fuzzy Logic Speed Controller.
Jacek Listwan
doaj +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Nonlinear Control of an Open-Loop Open-Winding Motor System with Modulated Converters [PDF]
Problems of the Regional Energetics, 2017 Purpose of this work - to provide wider control opportunities for multiphase open-end winding motor drive by modification of basic scheme of space-vector pulse-width modulation (PWM).
Oleschuk V.I.
doaj
New space vector modulation algorithms applied to multilevel converters with balanced DC-link voltage [PDF]
, 2005 This work presents a survey of new space vector modulation algorithms for high power voltage source multilevel converters. These techniques provide the nearest switching vectors sequence to the reference vector and calculates the on-state durations of ...
Carrasco Solís, Juan Manuel +2 more
core
Advanced Functional Materials, EarlyView.A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian +6 more
wiley +1 more source
Four-level SVPWM Strategy of Dual Three-phase Open-winding PMSM Drive
CES Transactions on Electrical Machines and SystemsTo achieve high power rating and low current harmonics of motor drive, this paper develops a dual three-phase open-winding permanent magnet synchronous motor (DTP-OW-PMSM) drive with the DC-link voltage ratio of 2:1:1.
Haowen Jiang +5 more
doaj +1 more source