Results 101 to 110 of about 1,987,184 (244)

Moment analysis of bio-inspired stochastic energy harvesters under wind conditions

open access: yes四川大学学报. 自然科学版
To further understand the performance of the energy harvesters under the influence of the wind force and the random excitation, this paper investigates the stochastic response of the bio-inspired energy harvesters subjected to Gaussian white noise and ...
WANG Kang-Ning   +2 more
doaj  

A High‐Resolution Self‐Powered Angular Displacement Sensor Based on Triboelectric Nanogenerator With Time‐Grating

open access: yesAdvanced Science, EarlyView.
A self‐powered phase‐encoding sensing paradigm enables direct motion‐to‐time information conversion, providing a compact and autonomous strategy for high resolution angular displacement measurement. ABSTRACT In modern manufacturing and engineering, angular displacement sensors are crucial for motion control and feedback systems in Electromechanical ...
Shuxian Wang   +3 more
wiley   +1 more source

Piezoelectric Transducers: Complete Electromechanical Model with Parameter Extraction

open access: yesSensors
This paper presents a complete electromechanical (EM) model of piezoelectric transducers (PTs) independent of high or low coupling assumptions, vibration conditions, and geometry.
Michael L. Isaf, Gabriel A. Rincón-Mora
doaj   +1 more source

Unlocking Low‐Melting‐Point and High‐Conductivity Molten Salts via High‐Entropy Strategy with Demonstration in Thermal Batteries

open access: yesAdvanced Science, EarlyView.
A high‐entropy strategy is developed to break the trade‐off between low melting point and high ionic conductivity in molten salt electrolytes. By incorporating CsBr and LiF into the LiCl‐LiBr‐KBr system, the quinary LiF‐LiCl‐LiBr‐KBr‐CsBr electrolyte achieves a record‐low melting point of 229.5°C while maintaining a high conductivity of 1.19 S cm−1 at ...
Binchao Shi   +6 more
wiley   +1 more source

Performance comparison of 2-1-3, 1-3 and 1-3-2 piezoelectric composite transducers by finite element method

open access: yesCondensed Matter Physics, 2018
1-3 type, 1-3-2 type and 2-1-3 type piezoelectric composites are three proper smart materials for the design and manufacture of ultrasonic transducers. They have been proposed in different stages but possess similar properties.
Y. Sun, B. Hua
doaj   +1 more source

Magnetoelectric Nanoparticles Enable Modulation of Cortical Networks by Low‐Intensity Static Magnetic Fields In Vitro

open access: yesAdvanced Science, EarlyView.
Neuromodulation strategies are increasingly needed to stimulate, restore, or replace altered neuronal activity in disease. Cobalt ferrite‐barium titanate (CFO–BTO) magnetoelectric nanoparticles convert low‐intensity static magnetic fields into local electrical modulation of cortical networks.
Nathalia Cancino‐Fuentes   +13 more
wiley   +1 more source

Data‐Driven Design of Self‐Adhesive Epidermal Electrodes and Sensors

open access: yesAdvanced Science, EarlyView.
This work presents self‐adhesive, stretchable epidermal electrodes and sensors developed through a data‐driven design framework that integrates artificial neural networks with genetic algorithms. By tailoring optimization objectives, either maximizing electrical conductivity and adhesion or enhancing piezoresistive sensitivity, the study enables the ...
Xuan Li   +10 more
wiley   +1 more source

Equivalent electromechanical coefficient for IPMC actuator design based on equivalent bimorph beam theory

open access: yes, 2009
This paper addresses an “equivalent” electromechanical coupling coefficient that may be used in designing Ionic Polymer Metal Composite (IPMC) actuators. The coefficient is not a material constant and derived from equivalent bimorph beam model.
Papila, Melih, Çilingir, Halime Didem
core   +2 more sources

Tetragonal-pseudocubic boundary engineering unlocks high electromechanical activity in PNN-PZT ceramics

open access: yesJournal of Materiomics
High-performance piezoelectric ceramics are essential for actuators functioning under extreme conditions, ranging from specific electronic components in the aerospace sector to those in the energy exploration industry that operate under moderate thermal ...
Zhuo Xing   +9 more
doaj   +1 more source

Self‐Powered All‐in‐One Wearable Bioelectronics Driven by Pneumatic Energy Buffering of Daily Footsteps

open access: yesAdvanced Science, EarlyView.
A pneumatic energy‐buffering strategy transforms transient and intermittent footsteps into quasi‐continuous electrical energy for a self‐powered wearable biosensing platform. The footwear‐integrated air‐pumping harvester, combined with the rationally designed power‐management system, powers a wearable ankle PPG device with reduced motion artifacts ...
Ji‐Seok Kim   +8 more
wiley   +1 more source

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