منابع مشابه
Energy Harvesting from Vibrating Piezo-Electric Structures
The process of capturing the energy from a system’s environment or surrounding and converting it into usable electrical energy is termed as energy harvesting. One form of energy harvesting is to employ piezoelectric materials to harvest energy from vibrating structures. These materials have the ability to absorb the mechanical energy and transform it into electrical energy that can be used to p...
متن کاملEstimation of Electric Charge output for Piezoelectric Energy Harvesting
Piezoelectric materials (PZT) can be used as mechanisms to transfer mechanical energy, usually ambient vibration, into electrical energy that can be stored and used to power other devices. With the recent advances in wireless and micro-electro-mechanical-systems (MEMS) technology, sensors can be placed in exotic and remote locations. As these devices are wireless it becomes necessary that they ...
متن کاملShears from shapelets
Aims. Accurate measurement of gravitational shear from images of distant galaxies is one of the most direct ways of studying the distribution of mass in the universe. We describe an implementation of a technique that is based on the shapelets formalism. Methods. The shapelets technique describes PSF and observed images in terms of Gauss-Hermite expansions (Gaussians times polynomials). It allow...
متن کاملElectric Field Energy Harvesting Powered Wireless Sensors for Smart Grid
In this paper, a new energy harvesting technology using stray electric field of an electric power line is presented. It is found that energy can be harvested and stored in the storage capacitor that is connected to a cylindrical aluminum foil wrapped around a commercial insulated 220 V power line. The average current flowing into 47 μF storage capacitor is about 4.53 μA with 60 cm long cylindri...
متن کاملSpontaneous shears in smectic elastomers.
We model the spontaneous elastic shear deformations of smectic elastomers as they make the thermal transition between the A and C phases. Tilt of the director is accompanied by shear. Unlike nematic elastomers where spontaneous elongation is associated with changes in the magnitude of order, spontaneous distortion in smectics is instead shear and is associated with rotation of the director of t...
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ژورنال
عنوان ژورنال: Journal of Range Management
سال: 1972
ISSN: 0022-409X
DOI: 10.2307/3896559