Results 71 to 80 of about 53,830 (313)

Effect of Temperature and Pressure Variations on the Resonant Frequency of Piezoelectric Material

Measurement + Control, 2016
Ultrasound transducers are used in a multitude of applications. A typical ultrasound transducer assembly consists of a piezoelectric layer, one or more matching layers and a backing layer.
Vaishali Upadhye, Sudhir Agashe
doaj   +1 more source

Performance of periodic piezoelectric composite arrays incorporating a passive phase exhibiting anisotropic properties

, 2006
This paper explores the minimisation of interelement cross talk in 1-D and 2-D periodic composite array structures through the incorporation of a passive phase exhibiting anisotropic elastic properties.
R.L. O'Leary, A.C.S. Parr, Hayward, G., G. Hayward, Troge, A., R.A. Pethrick, A. Troge, O'Leary, R.L., Parr, A.C.S., Pethrick, R.A.   +9 more
core   +1 more source

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

Advanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu, Hanyang Zhang, Wenbo Yang, Hao Chen, Jincheng Wang, Fei Chang   +5 more
wiley   +1 more source

Preparation and piezoelectric properties of thermoplastic polyurethane elastomer/methylamine lead iodine composite film

Hecheng xiangjiao gongye
"Methylamine lead iodine was synthesized by low-temperature liquid phase method, and thermoplastic polyurethane elastomer/methylamine lead iodine composite films were prepared by tap casting method.
"SHU Ben-qin1, SUN Xiao-kai2, LI Xiao-qiang1, FU Yu-heng2, YI Juan2, HU Guo-hua2, XIONG Chuan-xi2"
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Micro-arranged ZnO particles and conductive fillers in PCL composites for enhanced piezoelectric and dielectric properties in bone tissue engineering applications

Materials & Design
Piezoelectric polymers are promising for replicating bone tissue’s piezoelectric properties. Typically, non-piezoelectric biopolymers are combined with piezoelectric particles, but this yields low piezoelectric output.
Francisco Fernández-Gil, Felipe Olate-Moya, José Ricardo Aguilar-Cosme, Javier García-Molleja, Juan Pedro Fernández-Blázquez, Sarah Cartmell, Humberto Palza   +6 more
doaj   +1 more source

Fabrication and Characterization of Aligned Flexible Lead-Free Piezoelectric Nanofibers for Wearable Device Applications

Nanomaterials, 2018
Flexible lead-free piezoelectric nanofibers, based on BNT-ST (0.78Bi0.5Na0.5TiO3-0.22SrTiO3) ceramic and poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) copolymers, were fabricated by an electrospinning method and the effects of the degree of ...
Sang Hyun Ji, Ji Sun Yun
doaj   +1 more source

Investigating the thermal stability of 1-3 piezoelectric composite transducers by varying the thermal conductivity and glass transition temperature of the polymeric filler material

, 2002
The thermal behaviour of a number of 1-3 piezoelectric composite transducers is discussed. In particular, devices manufactured from a polymer filler with a relatively high glass to rubber transition temperature (T-g), and from polymer systems with ...
Hayward, G., Ewing, H.C., O'Leary, R.L., Smillie, G., MacKintosh, A.R., Parr, A.C.S., Benny, C.G.   +6 more
core   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Towards a piezoelectric vibration-powered microgenerator

, 2001
As MEMS and Smart Material technologies advance, embedded and remote applications are becoming more widespread. Powering these systems can be a significant engineering problem, as traditional solutions such as batteries are not always appropriate.
Glynne-Jones, P., White, N.M., Beeby, S.P.   +2 more
core   +1 more source