Results 101 to 110 of about 7,264,350 (237)

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

Real‐Time Ferroelectric Domain Wall Dynamics During Electric Poling and Depoling

Advanced Science, EarlyView.
Real‐time visualization of domain wall dynamics during alternating‐current poling, direct‐current poling, and electrical depoling in relaxor‐PT ferroelectric single crystals reveals distinct field‐dependent pathways and strong path dependence. Instant polarized light microscopy uncovers reversible domain wall nucleation, motion, and reconfiguration ...
Ziqi Wang, Zhengze Xu, Anastasia Timofeeva, Hossam Elnaggar, Sipan Liu, Yusen Pei, Reece Henry, Brendan O'Connor, Eunkyoung Shim, Franky So, Kara Peters, Xiaoning Jiang, Jun Liu   +12 more
wiley   +1 more source

Study of Electromechanical Coupling Efficiency of Piezoelectricity

, 2010
本篇論文在於整理關於機電耦合係數的國際期刊論文，共整理了八篇。以動機、目標、方法、重要結果為整理重點，以方便其他研究學者進行對機電耦合係數的研究。本文亦把相關基礎理論，如壓電理論、機電耦合係數之計算、電彈理論、表面彈性波理論做簡要說明，讓一般研究者也可以輕易入門。壓電材料的機電轉換能力一般而言多由機電耦合係數(Electromechanical coupling coefficient，EMCC)所決定。其定義為在輸入能量全為介電能(機械能)的情況下，機電耦合係數的平方等於儲存在壓電材料內可由輸入介電能(
鍾昇達, Chung, Sheng Ta
core  

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

Advanced 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, Donghang An, Shiyou Liu, Zhiyi Wu   +3 more
wiley   +1 more source

Beyond-Classical Ferroelectric Metamaterials: 3D-Printed Planar Lattices With Programmable Electro-Thermo-Mechanical Coupling. [PDF]

Adv Sci (Weinh)
Planar ferroelectric lattices with rationally‐tailored topology and polarization achieve programmable piezoelectric and pyroelectric properties. Analytical modeling, homogenization, and experiments collectively demonstrate enhanced and tunable longitudinal, transverse, and shear piezoelectric responses, together with substantially improved ...
Shi J, Ju K, Chen H, Orsat V, Sasmito AP, Ahmadi A, Akbarzadeh A.   +6 more
europepmc   +2 more sources

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

Advanced 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, Ting Sun, Fushan Yu, Yi Zhang, Gaowu Wang, Ting Quan, Yan‐li Zhu   +6 more
wiley   +1 more source

Breaking the strain–symmetry trade-off via electrostriction-mediated reversible phase transition in B-site-engineered BNKT-based ceramics

Journal of Advanced Ceramics
Achieving large electrostrain together with a symmetric bipolar response remains challenging in lead-free piezoceramics, as mechanisms that generate large strain often involve irreversible polarization processes that limit strain reversibility.
Pichitchai Butnoi, Supalak Manotham, Kamonporn Saenkam, Waraporn Boontakam, Chatchai Kruea-In, Thapanee Srichumpong, Kamonpan Pengpat, Chamnan Randorn, Thanatep Phatungthane, Gobwute Rujijanagul   +9 more
doaj   +1 more source

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

Advanced 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, Alejandro Suarez‐Perez, Elric Zhang, Hao Ye, Marta Bonato, Joana Covelo, Vitaly Pustovalov, Anton Guimera‐Brunet, Xavi Illa, Valentin Gantenbein, Cagatay M. Oral, Marta Parazzini, Salvador Pané, Maria V. Sanchez‐Vives   +13 more
wiley   +1 more source

5.5 GHz film bulk acoustic wave filters using thin film transfer process for WLAN applications

Microsystems & Nanoengineering
Wireless local area network (WLAN) has gained widespread application as a convenient network access method, demanding higher network efficiency, stability, and responsiveness. High-performance filters are crucial components to meet these needs. Film bulk
Tingting Yang, Chao Gao, Yaxin Wang, Binghui Lin, Yupeng Zheng, Yan Liu, Cheng Lei, Chengliang Sun, Yao Cai   +8 more
doaj   +1 more source

Pb(Mg1/3Nb2/3)O3-induced oxygen octahedral distortions and domain growth for concurrent enhancement of multiple parameters in PNN–PZT

Journal of Advanced Ceramics
Enhancing key parameters such as the piezoelectric coefficient (d33), Curie temperature (TC), electromechanical coupling coefficient (kp), and dielectric loss (tanδ) is crucial for improving the overall performance of piezoelectric ceramics. However, the
Zi’ao Xing, Wei Peng, Chenming Gu, Zhengran Chen, Dongxu Cheng, Xiaorong Lu, Ruihong Liang   +6 more
doaj   +1 more source