نتایج جستجو برای: nonlinear energy harvesting

تعداد نتایج: 886258  

Journal: :Machines 2022

Nonlinear multi-stable piezoelectric energy harvesters show broadband frequency spectra and excellent harvesting performance, owing to their high output power related inter-well transitions. However, existing quad-stable contain too many structural parameters, which makes the systems clumsy, increases difficulties of dynamic analysis optimization. Herein, a nonlinear harvester, with only one ex...

2016
Young-Su Cha Jin Hong Jaemin Lee Jung-Min Park Keehoon Kim

In this paper, we study energy harvesting from the mouse click motions of a robot finger and a human index finger using a piezoelectric material. The feasibility of energy harvesting from mouse click motions is experimentally and theoretically assessed. The fingers wear a glove with a pocket for including the piezoelectric material. We model the energy harvesting system through the inverse kinemat...

2010
Pius Lee Mingding Han Hwee-Pink Tan Alvin Valera

In sustainable wireless sensor networks powered by ambient energy harvesting, node operation highly depends on the energy availability and harvesting rate. For them to support existing wireless sensor network applications, duty-cycling schemes need to adapt the nodes’ sleep-wake schedules according to energy harvesting and consumption rates. In this paper, we propose a harvesting-aware duty-cyc...

2017
Taeho Oh Syed K. Islam Mohamad Mahfouz

Piezoelectric vibration based energy harvesting systems have been widely utilized and researched as powering modules for various types of sensor systems due to their ease of integration and relatively high energy density compared to RF, thermal, and electrostatic based energy harvesting systems. In this paper, a low-power CMOS full-bridge rectifier is presented as a potential solution for an ef...

2008
S. P. Beeby R. N. Torah M. J. Tudor

This paper reviews kinetic energy harvesting as a potential localised power supply for wireless applications. Harvesting devices are typically implemented as resonant devices of which the power output depends upon the size of the inertial mass, the frequency and amplitude of the driving vibrations, the maximum available mass displacement and the damping. Three transduction mechanisms are curren...

2009
R.J.M. Vullers R. van Schaijk I. Doms C. Van Hoof R. Mertens

More than a decade of research in the field of thermal, motion, vibration and electromagnetic radiation energy harvesting has yielded increasing power output and smaller embodiments. Power management circuits for rectification and DC–DC conversion are becoming able to efficiently convert the power from these energy harvesters. This paper summarizes recent energy harvesting results and their pow...

Journal: :journal of agricultural science and technology 2013
a. zenouzi b. ghobadian m. a. hejazi p. rahnemoon

one of the important bottle-necks in production of microalgae based biodiesel is thelack of an efficient method for harvesting of microalgae from the culture medium. in thisstudy, the electroflocculation method was developed for harvesting of microalgaedunaliella cells from culture medium. the effect of several parameters such as thecurrent density, electrical conductivity of culture medium, ti...

2016
Min-Gyu Kang Woo-Suk Jung Chong-Yun Kang Seok-Jin Yoon Kenji Uchino

Energy harvesting is the most effective way to respond to the energy shortage and to produce sustainable power sources from the surrounding environment. The energy harvesting technology enables scavenging electrical energy from wasted energy sources, which always exist everywhere, such as in heat, fluids, vibrations, etc. In particular, piezoelectric energy harvesting, which uses a direct energ...

2017
Yu Min Hwang Ji Ho Park Yoan Shin Jin Young Kim

The optimum transmission strategy for maximizing energy efficiency (EE) of a multi-user massive multiple-input multiple-output (MIMO) system in radio frequency energy harvesting networks is investigated. We focus on dynamic time-switching (TS) antennas, to avoid the practical problems of power-splitting antennas, such as complex architectures, power loss and signal distortion when splitting the...

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