Results 81 to 90 of about 378,207 (280)

Design and Implementation of Multilevel Inverters for Fuel Cell Energy Conversion System

open access: yesIEEE Access, 2020
Power converter plays a significant role in Proton Exchange Membrane Fuel Cell (PEMFC) energy generation systems, which is an alternative of distributed energy generation systems.
C. Dhanamjayulu   +5 more
doaj   +1 more source

Thickness‐Defined Transport Regime Toward Near‐Ideal Area‐Type Switching

open access: yesAdvanced Materials, EarlyView.
By thinning the oxide layer, memristors pass from diode‐like and battery‐effect‐dominated behavior toward eventual short‐circuit failure. Within the intermediate 5–6 nm window, they reach a near‐ideal analog area‐type switching regime, featuring symmetric hysteresis, area‐dependent conductance, and continuous linear programming of HRS and LRS with ...
Cuo Wu   +12 more
wiley   +1 more source

Monolithically 3D‐Printed Spectral‐Spatial Meta‐Authenticators

open access: yesAdvanced Materials, EarlyView.
A single height map printed in a low‐index resin by two‐photon lithography encodes multiple visible wavelengths in one metasurface without any polarization optics. A fabrication‐aware optimization folds the printable height levels into the design, so the device is printed as optimized.
Cherry Park   +3 more
wiley   +1 more source

Conversor CC-CC buck+boost multinível bidirecional [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Elétrica, Florianópolis, 2013Este trabalho apresenta uma nova topologia de conversor cc-cc Buck+Boost bidirecional multinível ...
Costa, Levy Ferreira
core  

Universal multilevel power converter

open access: yes, 2021
In this report, we will introduce a new multilevel converter topology with reduced switches and multiple outputs, such as DC to AC and DC to DC. IGBT and MOSFET are commonly applying in building Modular Multilevel Converter(MMC), which effectively ...
Zhuang, Zhentao
core  

Toward Perception‐Native Electronic Skin: Bio‐Inspired In‐/Near‐Sensor and Neuromorphic Computing for Humanoid Robots

open access: yesAdvanced Materials Technologies, EarlyView.
Dense tactile streams from across the humanoid body converge on collide in a central wiring and data bottleneck. By relocating computation closer to and then into the skin itself, near‐ and in‐sensor architectures, together with neuromorphic computing, chart a path toward perception‐native electronic skin, in which the conversion of stimulus into ...
Mijin Kim   +6 more
wiley   +1 more source

Single DC-Sourced 9-level DC/AC Topology as Transformerless Power Interface for Renewable Sources

open access: yesEnergies, 2015
This paper introduces an advanced transformerless multilevel hybrid-conversion topology intended for the interconnection of renewable DC sources at small-scale. The most important contribution presented in this paper is the generation of two isolated DC
Juan R. Rodriguez-Rodríguez   +2 more
doaj   +1 more source

Moisture‐Adaptive Triboelectric Materials and Platforms: Design Strategies, Performance Enhancement, and Applications in Energy Harvesting and Wearable Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes moisture‐adaptive strategies that enable triboelectric nanogenerators (TENGs) to operate across diverse moisture conditions. It examines moisture‐management methods, including exclusion, directional transport, removal, and utilization, with charge‐regulation approaches based on interfacial, dielectric, and structural engineering.
Junzhe Gan   +4 more
wiley   +1 more source

Research on cascaded multilevel converters for dual motor drive systems based on a nine‐switch converter

open access: yesIET Electric Power Applications
In order to address the issues of complexity, high cost, large volume, and low reliability associated with traditional H‐bridge cascaded converters when operating under high voltage, high capacity, and dual electric motor loads, the authors propose the ...
Pan Wang, Hu Xu, Lei Yuan
doaj   +1 more source

Transparent Single‐Dye NIR Photonic Platform for Multimodal Optical Authentication

open access: yesAdvanced Optical Materials, EarlyView.
A single‐component DHP‐SQ dye integrates visible transparency, near‐infrared (NIR) fluorescence, and photothermal functionality into one molecular platform. NIR‐selective visualization transforms visually imperceptible printed patterns into readily authenticated information, while screen‐printing compatibility enables well‐defined patterning on diverse
Su Jeong Choi   +14 more
wiley   +1 more source

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