Results 1 to 10 of about 327,250 (120)

A Compact Stacked RF Energy Harvester with Multi-Condition Adaptive Energy Management Circuits

open access: yesMicromachines, 2023
This paper presents a compact stacked RF energy harvester operating in the WiFi band with multi-condition adaptive energy management circuits (MCA-EMCs). The harvester is divided into antennas, impedance matching networks, rectifiers, and MCA-EMCs.
Xiaoqiang Liu   +5 more
doaj   +1 more source

Improvement on the Use of Se@C in Batteries by Synergistic Effect of Nano-Confinement and C-Se Bond

open access: yesBatteries, 2023
In order to alleviate the cyclic attenuation caused by the dissolution of poly-selenides in lithium/sodium storage devices, quantitative selenium was slowly evaporated on the surface of sodium citrate derived carbon (SCDC) at low temperature, and ...
Lijun Wu   +15 more
doaj   +1 more source

Carbon Dots-Based Fluorescence Assay for the Facile and Reliable Detection of Ag+ in Natural Water and Serum Samples

open access: yesMolecules, 2023
In this report, red-emissive carbon dots (C-dots) were facilely prepared from o-phenylenediamine via microwave-assisted hydrothermal treatment. The C-dots demonstrated excitation wavelength-independent emission with maximums at 621 nm that could be ...
Yuanping Luo   +6 more
doaj   +1 more source

A Cantilever Beam-Based Triboelectric Nanogenerator as a Drill Pipe Transverse Vibration Energy Harvester Powering Intelligent Exploitation System

open access: yesSensors, 2022
Measurement While Drilling (MWD) is the most commonly used real-time information acquisition technique in offshore intelligent drilling, its power supply has always been a concern.
Zhenhui Lian   +14 more
doaj   +1 more source

Research on an Optimized Quarter-Wavelength Resonator-Based Triboelectric Nanogenerator for Efficient Low-Frequency Acoustic Energy Harvesting

open access: yesNanomaterials, 2023
Sound wave is an extensively existing mechanical wave, especially in marine and industrial plants where low-frequency acoustic waves are ubiquitous. The effective collection and utilization of sound waves provide a fresh new approach to supply power for ...
Xiu Xiao   +8 more
doaj   +1 more source

A Robust Silicone Rubber Strip-Based Triboelectric Nanogenerator for Vibration Energy Harvesting and Multi-Functional Self-Powered Sensing

open access: yesNanomaterials, 2022
Vibration is a common phenomenon in various fields which can not only indicate the working condition of the installation, but also serve as an energy source if it is efficiently harvested.
Taili Du   +8 more
doaj   +1 more source

One-Step Gas–Solid-Phase Diffusion-Induced Elemental Reaction for Bandgap-Tunable CuaAgm1Bim2In/CuI Thin Film Solar Cells

open access: yesNano-Micro Letters, 2023
Highlights The CuaAgm1Bim2In/CuI bilayer films are prepared simultaneously in situ by a one-step low-temperature gas-solid phase diffusion induced elemental reaction without spin coating.
Erchuang Fan   +11 more
doaj   +1 more source

A bio-inspired and self-powered triboelectric tactile sensor for underwater vehicle perception

open access: yesnpj Flexible Electronics, 2022
Marine mammals relying on tactile perception for hunting are able to achieve a remarkably high prey capture rate without visual or acoustic perception.
Peng Xu   +12 more
doaj   +1 more source

Effect of hydrogen passivation on the decoupling of graphene on SiC(0001) substrate: First-principles calculations

open access: yesScientific Reports, 2017
Intercalation of hydrogen is important for understanding the decoupling of graphene from SiC(0001) substrate. Employing first-principles calculations, we have systematically studied the decoupling of graphene from SiC surface by H atoms intercalation ...
Kang Liu   +7 more
doaj   +1 more source

An accurate power control strategy for electromagnetic rotary power controllers

open access: yesIET Generation, Transmission & Distribution, 2023
With the rapid development of active distribution networks, the “petal”‐type distribution network has become the mainstream power supply structure. Power control methods for active distribution networks should be further studied to ensure the safe and ...
Xiangwu Yan   +5 more
doaj   +1 more source

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