نتایج جستجو برای: electrostriction

تعداد نتایج: 212  

Journal: :APL photonics 2021

Optomechanical systems combine extreme sensitivity and bandwidth in the control of mechanical motion, interest for various applications. Integrated on a chip, actuated detected all-optically by single laser, they could disrupt sensing technologies. We introduce here multiphysics model that describes their operation oscillating mode, under sinusoidal modulation when both photothermal forces radi...

Journal: :Physical review 2021

Statistical mechanics is an important tool for understanding polymer electroelasticity because the elasticity of polymers primarily due to entropy. However, a common approach statistical chains, Gaussian chain approximation, misses key physics. By considering nonlinearities problem, we show strong coupling between deformation and its dielectric response, that is, net dipole. When chains with th...

2018
Satoshi Yamashita Yasuhiro Nakazawa Shusuke Yamanaka Mitsutaka Okumura Tatsuhiro Kojima Nobuto Yoshinari Takumi Konno

In natural ionic solids, cationic and anionic species are alternately arranged to minimize electrostatic energy. Aggregation of identical ionic species is commonly prohibited due to the repulsive, long-range nature of Coulombic interactions. Recently, we synthesized unique ionic solids, [AuI4CoIII2(dppe)2(D-pen)4]X2·nH2O (dppe = 1,2-bis(diphenylphosphino)ethane, D-pen = D-penicillaminate), in w...

2017
Victor Lefèvre Oscar Lopez-Pamies

This paper presents an analytical framework to construct approximate homogenization solutions for the macroscopic elastic dielectric response — under finite deformations and finite electric fields — of dielectric elastomer composites with two-phase isotropic particulate microstructures. The central idea consists in employing the homogenization solution derived in Part I of this work for ideal e...

Journal: :Applied and environmental microbiology 2013
Elisa Gayán Santiago Condón Ignacio Álvarez Maria Nabakabaya Bernard Mackey

Survival rates of Escherichia coli and Staphylococcus aureus after high-pressure treatment in buffers that had large or small reaction volumes (ΔV°), and which therefore underwent large or small changes in pH under pressure, were compared. At a low buffer concentration of 0.005 M, survival was, as expected, better in MOPS (morpholinepropanesulfonic acid), HEPES, and Tris, whose ΔV° values are a...

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