Results 81 to 90 of about 16,913 (288)

Bio‐Based Wax Interfaces for Droplet Energy Harvesting at Fluoropolymer‐Like Output Levels

open access: yesAdvanced Science, EarlyView.
Replacing unsustainable fluorinated polymers in droplet‐based energy harvesters is usually limited by low power outputs, but carefully selected bio‐based polymers are capable of creating fluoropolymer‐like voltage outputs. Abstract Droplet impact and rebound on solid surfaces has emerged as a promising method for energy harvesting, typically ...
Behnam Kamare   +4 more
wiley   +1 more source

Optimal Isolation Control of Three-Port Active Converters as a Combined Charger for Electric Vehicles

open access: yesEnergies, 2016
The three-port converter has three H-bridge ports that can interface with three different energy sources and offers the advantages of flexible power transmission, galvanic isolation ability and high power density. The three-port full-bridge converter can
Zhixiang Ling   +3 more
doaj   +1 more source

Multi-cell three phase ac-dc driver for HB-LED lighting applications [PDF]

open access: yes, 2017
High Brightness Light-Emitting Diodes (HB-LEDs) are becoming omnipresent across all aspects of illumination products, due to their incredible characteristics: efficiency, reliability, long lifetime, controllability, etc.
Arias Pérez de Azpeitia, Manuel   +4 more
core   +2 more sources

Precision‐Engineered Silver Single‐Atom Carbon Dot Nanozymes for Theranostic Management of Acute Kidney Injury

open access: yesAdvanced Science, EarlyView.
Mitochondria‐targeted silver single‐atom carbon dot (T‐AgSA‐CDs) nanozymes enable dual SOD/GPx‐like ROS scavenging, real‐time imaging, and therapeutic effects for acute kidney injury (AKI). Atomically dispersed Ag sites synergize with carbon dots to restore renal redox hemostasis, protect mitochondrial function, mitigate inflammation, facilitate post ...
Tianle Tang   +10 more
wiley   +1 more source

Observations of Isolated Mobile Au–Br and Au–S Surface Complexes on Au(100) Electrodes

open access: yesAngewandte Chemie, EarlyView.
Fast scanning tunneling microscopy measurements reveal the formation of Au–Br and Au–S surface complexes on Au(100) electrodes in aqueous electrolytes. These complexes are stable and diffuse as molecular entities over the Au surface, demonstrating that surface transport via complexes has to be considered in wet‐chemical growth and dissolution processes.
Chaolong Yang, Olaf M. Magnussen
wiley   +2 more sources

67.5% Efficient InP-Based Laser Power Converters at 1470 nm at 77 K

open access: yesPhotonics
Recent developments in long wavelength and cryogenic laser power converters have unlocked record performances in both areas. Here, devices for an optical input at ~1470 nm are studied for cryogenic applications, combining these cryogenic and long ...
Simon Fafard, Denis Masson
doaj   +1 more source

Reactive power minimization of dual active bridge DC/DC converter with triple phase shift control using neural network [PDF]

open access: yes, 2014
Reactive power flow increases dual active bridge (DAB) converter RMS current leading to an increase in conduction losses especially in high power applications.
Aboushady, Ahmed   +2 more
core   +2 more sources

Decoding Proton‐Coupled Electron Transfer Mechanism of Nicotine for Multi‐Scenario Portable Electrochemical Sensing

open access: yesAdvanced Science, EarlyView.
A key challenge in nicotine electroanalysis is the unresolved complexity of its interface process, which directly determines sensor metrics. Herein, the proton‐coupled electron transfer mechanism of nicotine is decoded for multi‐scenario portable electrochemical sensing.
Yi Peng   +9 more
wiley   +1 more source

Generic closed loop controller for power regulation in dual active bridge DC-DC converter with current stress minimization [PDF]

open access: yes, 2018
This paper presents a comprehensive and generalized analysis of the bidirectional dual active bridge (DAB) DC/DC converter using triple phase shift (TPS) control to enable closed loop power regulation while minimizing current stress.
Abdelsalam, Ibrahim   +3 more
core   +3 more sources

Chemical Doping Engineering of Polarization and Topological Textures in van der Waals Ferroelectric CuInP2S6

open access: yesAdvanced Science, EarlyView.
Our work reports that Li⁺ doping in CuInP2S₆ induces coexistence of high‐ and low‐polarization states, which fosters a rich spectrum of topological polar textures, such as bubbles and labyrinth domains. An unconventional flexoelectric effect is also discovered, where strain gradients can mechanically manipulate these polarization states and their ...
Lei Gao   +12 more
wiley   +1 more source

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