نتایج جستجو برای: porous piezoelectric material

تعداد نتایج: 419928  

Journal: :Malaysian Journal of Science Health & Technology 2021

The consumption of low-power electronic devices has increased rapidly, where almost all applications use power devices. Due to the increase in portable devices’ energy consumption, piezoelectric material is proposed as one alternatives significant alternative harvesters. This study aims create a prototype “Smart Shoes” that can generate electricity using three different designs embedded by mate...

2017
Anne Géraldine Guex Jennifer L. Puetzer Astrid Armgarth Elena Littmann Eleni Stavrinidou Emmanuel P. Giannelis George G. Malliaras Molly M. Stevens

Conjugated polymers have been increasingly considered for the design of conductive materials in the field of regenerative medicine. However, optimal scaffold properties addressing the complexity of the desired tissue still need to be developed. The focus of this study lies in the development and evaluation of a conductive scaffold for bone tissue engineering. In this study PEDOT:PSS scaffolds w...

2016
Wonjun Lee Woojin Kang Asif Khan Zafar Abas Heung Soo Kim Il-Kwon Oh

Piezoelectric thin films offer a number of advantages in various applications, such as high energy density harvesters, a wide dynamic range, and high sensitivity sensors, as well as large displacement and low power consumption actuators. This review covers the available material forms and applications of piezoelectric thin films: lead zirconate titanate (PZT)-based thin films, lead-free piezoel...

2008
Zhenya Zhu

The coupling between seismic and electromagnetic waves in a fluid-saturated porous medium is essentially controlled by the electrokinetic effect. The inverse effect of the seismoelectric conversion, the electroseismic conversion, is investigated experimentally in the laboratory. The electric field induces movement of the ions in a pore fluid relative to the solid matrix. The interaction between...

2005
K. SALOMON G. ANTON K. GRAF J. HÖSSL A. KAPPES T. KARG U. KATZ R. LAHMANN C. NAUMANN

Calibration sources are an indispensable tool for all detectors. In acoustic particle detection the goal of a calibration source is to mimic neutrino signatures as expected from hadronic cascades. A simple and promising method for the emulation of neutrino signals are piezo ceramics. We will present results of measruements and simulations on these piezo ceramics. The active element of a transdu...

2010
D. Farrar M. S. Yu J. E. West W. Moon

258 is one where the piezoactivity and mechanical properties can be altered individually so that the mechanical stiffness of the material can be controlled for particular applications or tuned to match that of the surroundings (e.g., air or water) for increased transduction sensitivity. Here, we present a new piezoelectric material based on a helical biopolymer with an inherently large electric...

2006
Qing-Sheng Yang Qing-Hua Qin Tong Liu

This paper studies interfacial mechanical behavior of laminate beams, consisting of two piezoelectric facial sheets and an elastic core. The study is based on coupled multi-filed finite element formulation. The emphasis is placed on mechanical and electric behavior of interfaces between piezoelectric material and elastic material, including effect of geometrical parameters, stress distribution ...

2016
Amador M. González Álvaro García César Benavente-Peces Lorena Pardo

Electronic devices using the piezoelectric effect contain piezoelectric materials: often crystals, but in many cases poled ferroelectric ceramics (piezoceramics), polymers or composites. On the one hand, these materials exhibit non-negligible losses, not only dielectric, but also mechanical and piezoelectric. In this work, we made simulations of the effect of the three types of losses in piezoe...

2010
Chengliang Sun Jian Shi Xudong Wang

This paper numerically estimates the potential, the output power and the energy conversion efficiency of piezoelectric nanostructures, including rectangular nanowires NWs , hexagonal NWs, and two-dimensional vertical thin films the nanofins . Static analysis studies the maximum piezoelectric potential that can be produced by a BaTiO3 NW, a ZnO NW, and a ZnO nanofin when they are subjected to a ...

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