Results 121 to 130 of about 7,058,682 (242)
Família de retificadores PWM unidirecionais três-níveis híbridos a capacitor chaveado com elevado fator de potência [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2015.Esta tese de doutorado tem por objetivo a proposta de uma nova família de conversores ca-cc três níveis ...
Cortez, Daniel Flores
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Advanced Functional Materials, EarlyView.Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang +9 more
wiley +1 more source
2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots
Advanced Functional Materials, EarlyView.2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll +17 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley +1 more source
Switched Regulator for Laboratory Power Supplies
Tato práce se zabývá návrhem a realizací spínaného zdroje s nastavitelným výstupním napětím. Jsou analyzovány základní topologie spínaných zdrojů, jejich vlastnosti a způsoby řízení.
Štěpán Syrovátka
core
High effective switched power supply
, 2015 This bachelor’s thesis analyses theoretical basis of switched mode power supplies. Selections of right topology for implementation, design of power and control circuits are discussed.
Rástočný, Martin
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Compact Switched-Inductor Power Supplies: Design Optimization with Second-Order Core Loss Model
Expressing switched-inductor converter losses simply as a function of design variables is key for designers. Power losses in switched-inductor power supplies are varied in nature, and optimization schemes in the literature fail to account for all of them.
Gabriel A. Rincón-Mora +1 more
core +1 more source
Micro-Power Harvesting from Electromagnetic Interferences in Power Systems. [PDF]
Micromachines (Basel)d'Ambrosio M +5 more
europepmc +1 more source