Results 31 to 40 of about 53,806 (287)

Computational Modeling of Flexoelectricity—A Review

Energies, 2020
Electromechanical coupling devices have been playing an indispensable role in modern engineering. Particularly, flexoelectricity, an electromechanical coupling effect that involves strain gradients, has shown promising potential for future miniaturized ...
Xiaoying Zhuang, Binh Huy Nguyen, Subbiah Srivilliputtur Nanthakumar, Thai Quoc Tran, Naif Alajlan, Timon Rabczuk   +5 more
doaj   +1 more source

Research on Effective Electric-Mechanical Coupling Coefficient of Sandwich Type Piezoelectric Ultrasonic Transducer Using Bending Vibration Mode

Advances in Mechanical Engineering, 2015
An analytical model on electromechanical coupling coefficient and the length optimization of a bending piezoelectric ultrasonic transducer are proposed. The piezoelectric transducer consists of 8 PZT elements sandwiched between four thin electrodes, and ...
Qiang Zhang, Shengjun Shi, Weishan Chen
doaj   +1 more source

Hydroxyl Group and Vasorelaxant Effects of Perillyl Alcohol, Carveol, Limonene on Aorta Smooth Muscle of Rats

Molecules, 2018
The present study used isometric tension recording to investigate the vasorelaxant effect of limonene (LM), carveol (CV), and perillyl alcohol (POH) on contractility parameters of the rat aorta, focusing in particular on the structure-activity ...
Ana Carolina Cardoso-Teixeira, Francisco Walber Ferreira-da-Silva, Dieniffer Peixoto-Neves, Klausen Oliveira-Abreu, Átila Pereira-Gonçalves, Andrelina Noronha Coelho-de-Souza, José Henrique Leal-Cardoso   +6 more
doaj   +1 more source

Dynamic Electromechanical Coupling of Piezoelectric Bending Actuators. [PDF]

Micromachines (Basel), 2016
Electromechanical coupling defines the ratio of electrical and mechanical energy exchanged during a flexure cycle of a piezoelectric actuator. This paper presents an analysis of the dynamic electromechanical coupling factor (dynamic EMCF) for cantilever based piezoelectric actuators and provides for the first time explicit expressions for calculation ...
Nabawy MRA, Crowther WJ.
europepmc   +5 more sources

Superconducting re-entrant cavity transducer for a resonant bar gravitational radiation antenna [PDF]

, 1992
Copyright @ American Institute of PhysicsA 10‐GHz superconducting niobium re‐entrant cavity parametric transducer was developed for use in a cryogenic 1.5‐tonne Nb resonant bar gravitational radiation antenna. The transducer has a very high electrical Q (
Braginsky V. B., D. G. Blair, N. P. Linthorne   +2 more
core   +1 more source

Kinematic-mapping-model-guided analysis and optimization of 2-PSS&1-RR circular-rail parallel mechanism for fully steerable phased array antennas

Defence Technology
This paper presents a systematic methodology for analyzing and optimizing an innovative antenna mount designed for phased array antennas, implemented through a novel 2-PSS&1-RR circular-rail parallel mechanism.
Guodong Tan, Xiangfei Meng, Xuechao Duan, Lulu Cheng, Dingchao Niu, Shuai He, Dan Zhang   +6 more
doaj   +1 more source

Circuit Electromechanics with a Non-Metallized Nanobeam

, 2014
We have realized a nano-electromechanical hybrid system consisting of a silicon nitride beam dielectrically coupled to a superconducting microwave resonator. We characterize the sample by making use of the Duffing nonlinearity of the strongly driven beam.
Faust, Thomas, Gross, Rudolf, Hocke, Fredrik, Huebl, Hans, Kotthaus, Jörg P., Pernpeintner, Matthias, Weig, Eva M.   +6 more
core   +1 more source

THE ROLE OF THE MARKETING COMMUNICATION IN THE ENTERING OF UKRAINIAN ENTERPRISES IN THE WORLD MARKET [PDF]

, 2008
The dielectric, piezoelectric, and acoustic properties of PMN-0.32PT (Pb(Mg(1/3)Nb(2/3)) O(3)-PbTiO(3)) single crystals were investigated as a function of sample thickness ranging from 120 to 30 μm in order to enlighten the origin of property degradation
Alagha, Shima, Chabok, Hamid Reza, Han, Pendi, Shung, K. Kirk, Tian, Jian, Zhou, Qifa   +5 more
core   +1 more source

Circuit cavity electromechanics in the strong-coupling regime [PDF]

Nature, 2011
8 pages, 4 ...
Teufel, J. D., Li, D., Allman, M. S., Cicak, K., Sirois, A. J., Whittaker, J. D., Simmonds, R. W.   +6 more
openaire   +3 more sources

Dual-Band Dual-Beam Shared-Aperture Reflector Antenna Design with FSS Subreflector

Sensors
In this study, a dual-band dual-beam shared-aperture reflector antenna based on a Cassegrain configuration is designed using a frequency-selective surface (FSS) subreflector.
Qunbiao Wang, Peng Li, Guodong Tan, Yiqun Zhang, Yuanxin Yan, Wanye Xu, Paolo Rocca   +6 more
doaj   +1 more source