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17 results for “energy harvesting”
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Research ArticleOpen accessPhrase in the titleTask Scheduling in Real Time Systems with Energy Harvesting and Energy MinimizationArvind Kumar, Bashir AlamEnergy is a major concern in battery operated real time devices (e.g. sensor nodes situated in remote areas) as battery life is solely responsible for the functioning of such devices. For such systems to work continuously and successively a regular source of energy is required. The lifetime of such systems can be increased by reducing the energy consumption and increasing … …Journal of Computer Science, Vol. 14, Issue 8 · 15 Aug 2018 · 8,287 accessesView PDFCite
Review ArticleOpen accessPhrase in the titleReview of Charge Pump Topologies for Micro Energy Harvesting SystemsMichelle Lim Sern Mi, Md. Shabiul Islam, Jahariah Sampe, Sawal Hamid Md. AliThis paper reviews CMOS based charge pump topologies used within autonomous embedded micro-systems. These charge pump structures have evolved from its simplistic diode-tied, single-branches with major threshold drops to exponential type, dual-branches with sophisticated gate and substrate control for lower voltage operation. Published charge pumps are grouped based on architecture, operation principles and pump optimization techniques with their pros and … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 26 May 2016 · 7,627 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleFluid-Structure Interaction Analysis of a Piezoelectric Cantilever for Energy HarvestingBader AlshuraiaanA numerical investigation was conducted to study the impact of varying the velocity magnitude and the elasticity of the cantilever on the performance of the piezoelectric beam such as tip deflection and voltage, tip electric field and maximum electric field. COMSOL software was used to solve for the governing equations taking into account fluid-structure interaction. The results of this investigation … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 3 · 18 Jul 2020 · 6,619 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleA DC-DC Circuit Using Boost Converter for Low Voltage Energy Harvesting ApplicationNurul Arfah Che Mustapha, A.H.M. Zahirul Alam, Sheroz Khan, Amelia Wong AzmanA DC-DC step-up voltage converter is designed to convert a very low voltage supply, 35 mV such as from the thermal energy source from body heat. The converter can generate an output voltage up to 210 mV, approximately six imes its initial input voltage over a frequency of 36 GHz. The effect of switching transistors, inductor current, rise and fall … …American Journal of Applied Sciences, Vol. 12, Issue 4 · 9 Jun 2015 · 6,980 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBi-Stable Vibration Power Generation System Using Electromagnetic Motor and Efficiency Improvement by Stochastic ResonanceWei Zhao, Yoshiro Fujiwara, Jingchao Guan et al.Research on vibration energy harvesting using stochastic resonance has become an important research topic. A vibration energy harvesting system was developed using electromagnetic motors based on an obliquely supported bistable motion model consisting of a spring mass. After formulating the motion-governing equations of the proposed vibrating system and analyzing its potential energy performance, it was demonstrated that the system exhibits … …American Journal of Engineering and Applied Sciences, Vol. 16, Issue 3 · 2 Aug 2023 · 5,734 accessesView PDFCite
Review ArticleOpen accessIn the keywordsArchitecture of an Ultra-Low-Power Fully Autonomous Universal Power Conditioner of Energy Harvester for Wireless Sensor Networks: A ReviewYeo Kim Heng, Md. Shabiul Islam, Susthitha Menon et al.A fully autonomous Universal Power Conditioner (UPC) that can accept energy from any micro-energy harvester (e.g., photovoltaic, thermoelectric, electromagnetic, piezoelectric etc.) is proposed. Generally, UPC removes the need of multiple optimized source specific converters. But, the proposed UPC architecture will be Ultra-Low-Power (ULP) with maximized efficiency to support the low energy levels generated by harvesting sources. This UPC uses a … …American Journal of Applied Sciences, Vol. 13, Issue 3 · 28 Mar 2016 · 7,782 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Wireless Sensor Node Supporting Various Powers Supply and Communication MethodsStefan Gruber, Hannes Reinisch, Hartwig Unterassinger et al.Problem statement: This study presents a wireless sensor node dedicated for in-tire pressure and temperature monitoring. Additional features set it apart from the many different systems available on the highly competitive market. State-of-the-art implementations are mounted on the rim of a tire. Here the sensor node will be mounted on the inner liner of the tire. By moving the sensor … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 4 · 12 Jan 2012 · 8,032 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDevelopment of Wireless Electric Concept Powering Electrical AppliancesHanita Daud, Noorhana Yahya, Azizuddin A. Aziz, Mohd Fadzzrul JusohThis study presents a concept of harvesting and transferring energy to a low power electrical appliances using wireless technology where interconnecting wires are not available. This study was a ground work for the future alternative energy supply especially to the areas where supplying direct energy is a challenge such as in deep sea exploration as well as to the area … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2008 · 7,340 accessesView PDFCite
Research ArticleOpen accessIn the abstractExploring the Synergistic Effects of Agitation on the Interaction Between Nanoparticles of Polyethylene and Benzophenone in Microalgae Tetraselmis sp.Rafaela Luiza Dias Da Cunha, Camyla Lais Costa Leal, Lycia Brito-GitiranaAebi, H. (1984). Catalase in Vitro. In Methods in Enzymology (1st ed., Vol. 105, pp. 121–126). Academic Press. https://doi.org/10.1016/s0076-6879(84)05016-3 Bannister, J. V., & Calabrese, L. (1987). Assays for Superoxide Dismutase. Methods of Biochemical Analysis, 32, 279–312. https://doi.org/10.1002/9780470110539.ch5 Camacho, F. G., Gómez, A. C., Sobczuk, T. M., & Grima, E. M. (2000). Effects of Mechanical and Hydrodynamic Stress in Agitated, Sparged … …American Journal of Environmental Sciences, Vol. 19, Issue 5 · 28 May 2024 · 4,816 accessesView PDFCite