Results 51 to 60 of about 37,767 (204)

Improved performance of d31-mode needle-actuating transducer with PMN-PT piezocrystal [PDF]

, 2018
Prototypes of a PZT-based ultrasound needle-actuating device have shown the ability to reduce needle penetration force and enhance needle visibility with color Doppler imaging during needle insertion for tissue biopsy and regional anesthesia. However, the demand for smaller, lighter devices and the need for high performance transducers have motivated ...
Jiang, Tingyi, Xia, Chunming, Cochran, Sandy, Huang, Zhihong   +3 more
openaire   +2 more sources

Characterization of AlN thin film piezoelectric coefficient d31 using Piezoelectric Micromachined Ultrasonic Transducers (PMUTs)

Journal of Physics: Conference Series, 2023
Abstract The transverse piezoelectric coefficients d 31 of piezoelectric membranes is fundamental to the design, simulation, optimization, and applications of piezoelectric devices using Aluminum Nitride (AlN). In this work, a method based on the inverse piezoelectric effect is proposed to characterize d
Zhenghu Zhang, Linwei Zhang, Zhipeng Wu, Mingze Gao, Liang Lou   +4 more
openaire   +1 more source

Direct evidence for electrostriction‐enhanced piezoelectricity in poly(vinylidene fluoride‐co‐trifluoroethylene) random copolymers

Responsive Materials, EarlyView.
Direct experimental evidence for electrostriction‐enhanced piezoelectricity is obtained for a quenched‐stretched‐annealed‐poled P(VDF‐TrFE) 52/48 mol.% random copolymer using time‐resolved small‐angle X‐ray scattering and wide‐angle X‐ray diffraction. Upon stretching up to 6% strain, the crystallinity (xc) increases 10% at the expense of the contents ...
Zhiwen Zhu, Guanchun Rui, Siyu Wu, Honghu Zhang, Ruipeng Li, Lei Zhu   +5 more
wiley   +1 more source

Comparison of Changes in Living Standards of Poland’S Population Across Different Classes of Location Over The Years 2000–2011

Folia Oeconomica Stetinensia, 2014
The goal of this article is to verify the hypothesis that from 2000 to 2011 the discrepancies between material living standards in the countryside and cities of different sizes blurred in Poland year by year. On the basis of the research conducted it has
Zwiech Patrycja, Turczak Anna
doaj   +1 more source

Weak Decays of Doubly Heavy Baryons: Multi-body Decay Channels

, 2017
The newly-discovered $\Xi_{cc}^{++}$ decays into the $ \Lambda_{c}^+ K^-\pi^+\pi^+$, but the experimental data has indicated that this decay is not saturated by any two-body intermediate state.
Shi, Yu-Ji, Wang, Wei, Xing, Ye, Xu, Ji
core   +1 more source

A flexible arched artificial photoreceptor constructed by photodeformable liquid crystal polymers and its application in vision restoration

Smart Molecules, EarlyView.
A flexible arched artificial photoreceptor with high stability and biocompatibility was fabricated by integrating liquid crystal polymers with polyvinylidene fluoride‐trifluoroethylene. This device exhibits robust photoelectric responses under low‐intensity illumination and demonstrates efficacy in restoring visual responses in blind rats following ...
Yumeng Jiang, Bo Peng, Jinyu Ma, Feng Pan, Jia Wei, Lang Qin, Cheng Sun, Yanlei Yu   +7 more
wiley   +1 more source

Is the temporomandibular joint affected by rheumatoid arthritis? A comparative investigation with knee arthritis in an experimental rat model

Journal of Anatomy, EarlyView.
Animals were sensitized with mBSA emulsified in CFA/IFA and subsequently received three intra‐articular injections of mBSA into either the TMJ or the knee (once per week). Mechanical hyperalgesia was assessed using electronic von Frey testing after arthritis establishment at 24 h or 7 days following the third intra‐articular injection.
Ana Carolina de Figueiredo Costa, Luane Macedo de Sousa, Delane Viana Gondim   +2 more
wiley   +1 more source

QuickCSG: Fast Arbitrary Boolean Combinations of N Solids [PDF]

, 2017
QuickCSG computes the result for general N-polyhedron boolean expressions without an intermediate tree of solids. We propose a vertex-centric view of the problem, which simplifies the identification of final geometric contributions, and facilitates its ...
Douze, Matthijs, Franco, Jean-Sébastien, Raffin, Bruno   +2 more
core   +2 more sources

Operating LISA as a Sagnac interferometer

, 2003
A phase-locking configuration for LISA is proposed that provides a significantly simpler mode of operation. The scheme provides one Sagnac signal readout inherently insensitive to laser frequency noise and optical bench motion for a non-rotating LISA ...
Shaddock, Daniel A.
core   +1 more source

Polyvinylidene Fluoride: A Growing Specialty Polymer with Many Facets

Chinese Journal of Chemistry, Volume 44, Issue 10, Page 1697-1710, 15 May 2026.
Comprehensive Summary Polyvinylidene fluoride (PVDF), the second largest produced fluoropolymer, exhibits outstanding chemical, physical, electroactive and electrochemical properties and is involved in many High‐Tech applications. This review reports recent novelties in synthesis, characterization, processes and applications. Recent preparation studies
Bruno Améduri
wiley   +1 more source