Results 21 to 30 of about 562,453 (297)

Persistent and radiation-induced currents in distorted quantum rings [PDF]

open access: yes, 2005
Persistent and radiation-induced currents in distorted narrow quantum rings are theoretically investigated. We show that ring distorsions can be described using a geometrical potential term.
Carlo Piermarocchi   +8 more
core   +3 more sources

Electric current generation in distorted graphene [PDF]

open access: yesInternational Journal of Modern Physics B, 2016
Graphene-like materials can be effectively described by quantum electrodynamics in (2+1) dimensions, QED3. In a pristine state, these systems exhibit a symmetry between the nonequivalent Dirac points in the honeycomb lattice. Realistic samples which include distortions and crystalline anisotropies are considered through mass gaps of topological and ...
Julia Mizher, Ana   +2 more
openaire   +4 more sources

Robust predictive current control of PWM rectifier under unbalanced and distorted network

open access: yesIET Power Electronics, 2021
Model predictive current control has been proposed for the control of a pulse width modulation (PWM) rectifier due to its simple principle, and quick response.
Yongchang Zhang   +3 more
doaj   +1 more source

A High-Precision Error Calibration Technique for Current Transformers under the Influence of DC Bias

open access: yesEnergies, 2023
A bias current in the power system will cause saturation of the measuring current transformer (CT), leading to an increase in measurement error. Therefore, in this paper, we first conducted measurements of the direct current component in a 10 kV ...
Sanlei Dang   +8 more
doaj   +1 more source

Finite control set MPC of LCL-filtered grid-connected power converter operating under grid distortions [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
Most of the basic control methods of the grid-connected converter (GCC) are defined to work with a sine wave grid voltage. In that case if the grid voltage is distorted by higher harmonics, the grid current may be distorted too, which, in consequence ...
P. Falkowski, A. Godlewska
doaj   +1 more source

Why Current Publication Practices May Distort Science

open access: yesPLoS Medicine, 2008
John Ioannidis and colleagues argue that the current system of publication in biomedical research provides a distorted view of the reality of scientific data.
Young, N. S.   +2 more
openaire   +5 more sources

An Artificial Neural Network Developed in MATLAB-Simulink for Reconstruction a Distorted Secondary Current Waveform. Part 2

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022
Recently, there has been an increased interest in the use of artificial neural networks in various branches of the electric power industry including relay protection.
Yu. V. Rumiantsev, F. A. Romaniuk
doaj   +1 more source

Pattern-Dependent Charging in Plasmas: Electron Temperature Effects [PDF]

open access: yes, 1997
The differential charging of high-aspect-ratio dense structures during plasma etching is studied by two-dimensional Monte Carlo simulations. Enhanced electron shadowing at large electron temperatures is found to reduce the electron current density to the
Giapis, Konstantinos P.   +1 more
core   +1 more source

Current PTSD symptomatology distorts memory for past symptoms [PDF]

open access: yesPsychiatry Research, 2019
Clinicians often rely on clients' retrospective reports of past symptoms to diagnose and treat Posttraumatic Stress Disorder (PTSD). However, there is limited research investigating memory for past PTSD symptoms. We asked sexual assault survivors to report their PTSD symptoms and then recall them 6 months later.
Nahleen, Sasha   +2 more
openaire   +3 more sources

Repetitive Predictive Control for Current Control of Grid-Connected Inverter Under Distorted Voltage Conditions

open access: yesIEEE Access, 2022
A repetitive predictive control for grid-connected inverter current control scheme is presented in this paper under voltage harmonic distortion in the stationary reference frame.
Angelo Lunardi   +5 more
doaj   +1 more source

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