Results 11 to 20 of about 1,807,813 (283)
Piezoelectric Energy Harvesting: Enhancing Power Output by Device Optimisation and Circuit Techniques [PDF]
Energy harvesting; that is, harvesting small amounts of energy from environmental sources such as solar, air flow or vibrations using small-scale (≈1cm 3 ) devices, offers the prospect of powering portable electronic devices such as GPS receivers and
Worthington, Emma
core +7 more sources
Polymer-based dielectric capacitors with excellent elevated-temperature capacitive performances are highly demanded in next-generation electronic power systems.
Zhenhao Fan +5 more
doaj +1 more source
The Development of a PiezoelectricI Fan System for the Flapping Wing Micro-Air-Vehicle Application [PDF]
A micro air vehicle (MAV) is a semiautonomous airborne vehicle which measures less than 15 cm in any dimension. It can be used to access situations too dangerous for direct human intervention, e.g., explosive devices planted in buildings and video ...
Chung, Hsien-Chun
core +7 more sources
The need for ferroelectric materials with both narrow bandgaps (Eg) and large remanent polarization (Pr) remains a key challenge to the development of high-efficiency ferroelectric photovoltaic (FPV) devices.
Jian Chen +8 more
doaj +1 more source
The influence of Bi content on dielectric properties of Bi4–xTi3O12–1.5x ceramics [PDF]
A kind of lead-free dielectric materials, such as the bismuth layered perovskite-type structure of Bi4–xTi3O12–1.5x (x=0.04,0.02,0,–0.02,–0.04), was prepared by the conventional solid-state method at 800∘C and sintered at 1100∘C.
Hui Gong +10 more
doaj +1 more source
Recently, semiconductor-ionic materials (SIMs) have emerged as new functional materials, which possessed high ionic conductivity with successful applications as the electrolyte in advanced low-temperature solid oxide fuel cells (LT-SOFCs).
Xiyu Nie +8 more
doaj +1 more source
Coupled piezoelectric-circuit FEA to study influence of a resistive load on power output of piezoelectric energy devices [PDF]
This paper presents, for the first time, a coupled piezoelectric-circuit finite element model (CPC-FEM) to analyze the power output of vibration-based piezoelectric energy harvesting devices (EHDs) when connected to a resistive load.
Zhu, Meiling +5 more
core +1 more source
Characterization of a rotary piezoelectric energy harvester based on plucking excitation for knee-joint wearable applications [PDF]
Wearable medical and electronic devices demand a similarly wearable electrical power supply. Human-based piezoelectric energy harvesters may be the solution, but the mismatch between the typical frequencies of human activities and the optimal operating ...
Pozzi, Michele, Zhu, Meiling
core +1 more source
Plucked piezoelectric bimorphs for knee-joint energy harvesting: modelling and experimental validation [PDF]
The modern drive towards mobility and wireless devices is motivating intensive research in energy harvesting technologies. To reduce the battery burden on people, we propose the adoption of a frequency up-conversion strategy for a new piezoelectric ...
Michele Pozzi +3 more
core +1 more source
The all-solid-state flexible supercapacitor (AFSC), one of the most flourishing energy storage devices for portable and wearable electronics, attracts substantial attentions due to their high flexibility, compact size, improved safety, and environmental ...
Shensong Wang +9 more
doaj +1 more source

