Results 121 to 130 of about 439 (222)

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source

Finite Element Modeling of a Donut Flextensional Transducer

, 2007
A new flextensional transducer based on the cymbal device was designed and fabricated. the endcap shape of this device, called the donut, was developed through finite element modeling using the commercially available software code ATILA®.
Schwartz, Robert W., Narayanan, Manoj
core   +1 more source

Multi‐Stimuli Responsive Viologen‐Crosslinked Eutectogels Derived From Natural Deep Eutectic Solvents for Information Security and Motion Detection

Advanced Science, EarlyView.
Described herein is the development of an organic eutectic gel based on a deep eutectic mixture of naturally derived betaine and lactic acid. The eutectic gels exhibit reversible color‐switching in response to multiple stimuli including strain, UV light, and temperature, enabling advanced applications in information security, intelligent wearable ...
Zhiang Bai, Wai Lean Koay, Xin Yi Oh, Vinh Xuan Truong   +3 more
wiley   +1 more source

A Versatile‐Designable Framework for Active and Programmable Shape‐Morphing Soft Matter Systems: From Inverse Design to Closed‐Loop Control

Advanced Science, EarlyView.
A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu, Peiling Xie, Ruitong Song, Banghan Liu, Rui Guo, Jiu‐an Lv   +5 more
wiley   +1 more source

Enhanced electromechanical coupling in piezoelectric MEMS vibration energy harvesters via strain-induced phase transition in Mn-doped bismuth ferrite epitaxial films

Microsystems & Nanoengineering
Mn-doped BiFeO3 (BFMO) epitaxial films grown on (100) Si wafers delivered enhanced electrical and piezoelectric properties under systematically optimized growth conditions, realized through a biaxial combinatorial sputtering method.
Sengsavang Aphayvong, Meika Takagi, Kira Fujihara, Yohane Fujibayashi, Norifumi Fujimura, Hidemasa Yamane, Shuichi Murakami, Takeshi Yoshimura   +7 more
doaj   +1 more source

Temperature Stability of Lead-Free Niobate Piezoceramics with Engineered Morphotropic Phase Boundary

, 2015
The temperature dependence of piezoelectric properties (direct piezoelectric coefficient d(33), converse piezoelectric coefficient d(33)(E=0), strain S and electromechanical coupling coefficient k(p)) for two niobate-based lead-free piezoceramics have ...
Jo, Wook, Roedel, Juergen, Florian H. Schader, Wook Jo, Wang, Ke, Webber, Kyle G., Ke Wang, Wang, Ruiping, Li, Jing-Feng, Jing‐Feng Li, Kyle G. Webber, Schader, Florian H., Rödel, Jürgen, Fangzhou Yao, Jürgen Rödel, Yao, Fangzhou, Ruiping Wang   +16 more
core   +1 more source

Fully Programmable Slow Light Based on a Spinor Representation of Generalized Coupled‐Resonator‐Induced Transparency

Advanced Science, EarlyView.
A programmable coupled‐resonator‐induced transparency (CRIT) platform is proposed, generalizing classical electromagnetically induced transparency (EIT) via a spinor representation. By utilizing dual‐channel gauge fields and universal unitary operations, this architecture enables dynamically engineered, reconfigurable slow‐light bands on a silicon ...
Seungkyun Park, Beomjoon Chae, Hyungchul Park, Sunkyu Yu, Xianji Piao, Namkyoo Park   +5 more
wiley   +1 more source

Modeling and Simulation Research of Hoisting System of Crane

Gong-kuang zidonghua, 2012
At present, research on crane hoisting system are generally done in way of electrical system and in way of mechanical system, or done in way of simple link of electrical system and mechanical system, so it's difficult to establish an effective and ...
YAO Yu-mei, NIU Chao, KONG Xian-hua
doaj  

Design of AlN-Based PMUT with High Electromechanical Coupling Efficiency for Breast Cancer Diagnosis

The study aims to develop a piezoelectric micromachined ultrasonic transducer (PMUT) with high transmission capability to achieve greater detection depth.
Chang Liu, Chenyang Xue, Yijun Cheng
core  

Hybrid BAW/SAW AlN and AlScN Thin Film Resonator First Experimental data

, 2016
A novel type of hybrid resonator based on BAW transformation into SAW in a ridged layered structure was fabricated and characterized. Bulk waves are excited by micromachined piezoelectric AlScN pillars located on the non-piezoelectric Si and sapphire ...
Fazel Parsapourkolour, Sylvain Ballandras, Vladimir Pashchenko, Paul Muralt, Pashchenko, Vladimir, Matloub, Ramin, Ramin Matloub, Muralt, Paul, Ken Haffner, Parsapourkolour, Fazel, Ballandras, Sylvain, Haffner, Ken   +11 more
core   +1 more source