Results 81 to 90 of about 314,315 (341)

Inverter-converter automatic paralleling and protection [PDF]

open access: yes
Electric control and protection circuits for parallel operation of inverter ...
Doughman, C. L.   +2 more
core   +1 more source

A double-dot quantum ratchet driven by an independently biased quantum point contact

open access: yes, 2006
We study a double quantum dot (DQD) coupled to a strongly biased quantum point contact (QPC), each embedded in independent electric circuits. For weak interdot tunnelling we observe a finite current flowing through the unbiased Coulomb blockaded DQD in ...
Khrapai, V. S.   +4 more
core   +1 more source

Analysis of the converter with twelve zoned voltage regulation

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ
The article focuses on electromagnetic processes in the electr ic circuits with semiconductor switches. The mathematical model of the converter with twelve zoned regulation of output voltage has been developed to analyse electromagnetic processes in ...
В. Михайленко   +3 more
doaj   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

Piezoelectric Phononic Plates: Retrieving the Frequency Band Structure via All-electric Experiments

open access: yes, 2019
We propose an experimental technique based on all-electric measurements to retrieve the frequency response of a one-dimensional piezoelectric phononic crystal plate, structured periodically with millimeter-scaled metallic strips on its two surfaces.
Chikh-Bled, F. H.   +4 more
core   +3 more sources

Unassisted Photoelectrochemical Hydrogen Production Coupled with Selective Glucose Oxidation Using Metal Halide Perovskite Photoanodes

open access: yesAdvanced Functional Materials, EarlyView.
A metal halide perovskite‐based photoanode integrated with a CoNiFe layered double hydroxide (LDH) cocatalyst is reported for selective glucose oxidation reaction (GOR), achieving simultaneous and unassisted photoelectrochemical hydrogen production. This system delivers high photocurrent density, excellent Faradaic efficiency of GOR, and strong techno ...
Shujie Zhou   +12 more
wiley   +1 more source

Temperature Dependence of a Sub-wavelength Compact Graphene Plasmon-Slot Modulator

open access: yes, 2017
We investigate a plasmonic electro-optic modulator with an extinction ratio exceeding 1 dB/um by engineering the optical mode to be in-plane with the graphene layer, and show how lowering the operating temperature enables steeper switching.
Amin, Rubab   +4 more
core   +1 more source

Estudio de fenómenos transitorios en circuitos eléctricos de primer orden; Study of transient phenomena in first order circuits

open access: yesRevista Científica de Ingeniería Energética, 2015
Este trabajo expone una metodología para estudiar procesos transitorios de corriente alterna y directa, en circuitos eléctricos lineales con un solo elemento almacenador de energía, empleando un sistema de instrumentación con una computadora y una ...
Bertha María Soriano González   +2 more
doaj  

Temperature dependence of refractive index and of electrical impedance of grape seed (Vitis vinifera, Vitis labrusca) oils extracted by Soxhlet and mechanical pressing

open access: yesGrasas y Aceites, 2015
In this report, the temperature dependence of the refractive index and electric impedance of vegetable oil grape seeds extracted from Vitis vinifera (v. Cabernet) and Vitis labrusca (v. Bordo) are investigated by means of experimental techniques.
D. S. Vieira   +6 more
doaj   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro   +4 more
wiley   +1 more source

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