Results 41 to 50 of about 11,309 (257)

Available Technologies and Commercial Devices to Harvest Energy by Human Trampling in Smart Flooring Systems: A Review

open access: yesEnergies, 2022
Technological innovation has increased the global demand for electrical power and energy. Accordingly, energy harvesting has become a research area of primary interest for the scientific community and companies because it constitutes a sustainable way to
Paolo Visconti   +4 more
doaj   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

open access: yesAdvanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee   +10 more
wiley   +1 more source

DC–DC converter with a high step-down ratio for water desalination applications

open access: yesThe Journal of Engineering, 2019
A single-stage 600 : 1 ratio voltage step-down dc–dc converter designed to produce a voltage of between 1 and 1.5 V from a rectified single/three-phase AC supply, for application in a desalination process, is presented. A coupled-inductor design is used,
Richard C. Pollock   +3 more
doaj   +1 more source

Maximal rectification ratios for idealized bi-segment thermal rectifiers [PDF]

open access: yes, 2015
Thermal rectifiers whose forward heat fluxes are greater than reverse counterparts have been extensively studied. Here we have discovered, idealized and derived the ultimate limit of such rectification ratios, which are partially validated by numerical ...
Merlitz, Holger   +5 more
core   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam   +10 more
wiley   +1 more source

Numerical calculation of the lightning transient voltage distribution on converter transformer winding based a dual winding model

open access: yesThe Journal of Engineering, 2019
The insulation co-ordination of converter transformer winding has a great influence on power system security. An equivalent circuit of a 500 kV converter transformer winding structure, including a LC equivalent network circuit and an ideal transformer in
Hongrui Jia   +4 more
doaj   +1 more source

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

open access: yesAdvanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin   +7 more
wiley   +1 more source

Dynamic Switching Characteristics of 1 A Forward Current $\boldsymbol{\beta}$ -Ga2O3 Rectifiers

open access: yesIEEE Journal of the Electron Devices Society, 2019
An inductive load test circuit was used to measure the switching performance of fieldplated edge-terminated Schottky rectifiers with a reverse breakdown voltage of 760 V (0.1 cm diameter, 7.85 × 10-3cm2 area) and an absolute forward current of 1 A
Jiancheng Yang   +8 more
doaj   +1 more source

Analysis of rectifiers properties

open access: yes, 2020
Předkládaná diplomová práce je zaměřena na analýzu vlastností usměrňovačů. Hlavními problémy usměrňovačů jsou negativními vlivy usměrňovačů, jako jsou neharmonické proudy zkreslující harmonický vstupní proud a zvlnění výstupního proudu a napětí na ...
Vogl, Tomáš
core  

Active rectifiers and their control

open access: yes, 2018
This chapter investigates the control design of active rectifiers and their applications in power electronics-based power system. The harmonic emission and measures are firstly addressed as a basis of evaluating the active rectifier’s effectiveness ...
Firuz Zare   +5 more
core   +1 more source

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