Results 121 to 130 of about 4,765,916 (306)

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced 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

Dual-Active-Bridge LC Resonant DC–DC Converter With an Auxiliary Boost Arm for Battery Energy Storage Systems

open access: yesIET Electrical Systems in Transportation
This study presents a dual-active-bridge (DAB) LC resonant DC–DC converter for battery energy storage systems. The proposed converter adds an auxiliary bridge arm to the traditional full-bridge (FB) LC resonant converter as a boost arm.
Yisheng Yuan, Wei Liu
doaj   +1 more source

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

open access: yesAdvanced 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

Dual active bridge dc-dc converter with extended operation range

open access: yes, 2019
The present disclosure relates to a dual active bridge DC-DC converter comprising a low voltage port; a high voltage port; a set of n transformers, each transformer comprising a primary and a secondary winding magnetically coupled to each other; a single
Manez, Kevin Tomas, Zhang, Zhe
core  

Improving the efficiency of an isolated bidirectional dual active bridge DC-DC converter using variable frequency [PDF]

open access: yes
This article presents a control method for an isolated bidirectional dual active bridge DC-DC converter (IBDC) where single phase shift (SPS) and variable frequency (VF) modulations are combined simultaneously with the purpose of improving the efficiency
Bellido, Juan L.   +7 more
core   +1 more source

Strategy for Dual-Active-Bridge Isolated Bidirectional DC-DC Converter [PDF]

open access: yesInformacije MIDEM, 2021
X. Xu, G. Bao, M. Ma, Y. Wang
doaj   +1 more source

Design optimization of dual active bridge converter

open access: yes
(English) The proliferation of batteries for local storage and electric vehicles (EVs) is rising steadily. The EV market’s prospects point to exponential growth in the coming years. This trend has also contributed to the promotion of local storage using second-life batteries. The emerging electrical landscape aims for an environmentally friendly energy
openaire   +4 more sources

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow   +6 more
wiley   +1 more source

Analysis of Conducted EMI for Dual Active Bridge DC-DC Converter

open access: yesKongzhi Yu Xinxi Jishu, 2017
Electromagnetic interference phenomenon in dual active bridge (DAB) DC/DC converter which is widely used in power electronic transformer is complicated, and there has been lack of the relevant research on its internal mechanism.
LIU Hongbin, KANG Jinsong
doaj  

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced 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

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