نتایج جستجو برای: electrical efficiency

تعداد نتایج: 571907  

ژورنال: مجله علمی پژوهان 2015

Introduction: Production and processing of raisin different areas are different based on weather conditions and their technological devices. Thus, generated wastewaters in each area are very different from another one in terms of quality and quantity. The objective of this study was to investigate the efficiency of the electrochemical process, which is an environmentally benign and simple techn...

Background: Highly-concentrated phosphate and nitrate anions from sugarcane wastewater are often discharged into public waters without standardized treatments. This study assessed the effects of electrical coagulation, initial pH and reaction time in the removal of phosphate and nitrate pollutants. Methods: We used aluminum electrodes to remove the pollutants at Hakhim Farabi Agricultural and ...

2010
Hong Zhou

We revisit the classical problem of the efficiency of inhomogeneous thermoelectric generators. The effects of different physical parameters on the efficiency of a generator are studied by solving the Domenicali’s equation numerically. It is found that the efficiency of a thermoelectric generator is insensitive to both the electrical resistivity and thermal conductivity. However, the efficiency ...

2014
Youngsuk Nam Yi Xiang Yeng Andrej Lenert Peter Bermel Ivan Celanovic Marin Soljačić Evelyn N. Wang

Solar thermophotovoltaic (STPV) systems convert solar energy into electricity via thermally radiated photons at tailored wavelengths to increase energy conversion efficiency. In this work, we report the design and analysis of a STPV system with 2D photonic crystals (PhCs) using a high-fidelity thermal-electrical hybrid model that includes the thermal coupling between the absorber/emitter/PV cel...

Journal: :iranian journal of basic medical sciences 0
ameneh sazgarnia research center of medical physics, avicenna research institute, mashhad university of medical sciences, mashhad, iran mohammad hossein bahreyni-toosi research center of medical physics, avicenna research institute, mashhad university of medical sciences, mashhad, iran majid valizadeh zabol university of medical sciences, zabol, iran fatemeh homaei research center of cancer; avicenna research institute; mashhad university of medical science, mashhad, iran habibollah esmaily department of community medicine &public health, mashhad university of medical sciences, mashhad, iran

objective(s) this study was carried out in order to evaluate the effects of electrochemotherapy, electrical pulses and chemotherapeutic drugs on the killing of cancerous cells and their probable synergistic effects. materials and methods electrochemotherapy treatments conducted on mcf-7 cell line derived from human breast adenocarcinoma tumor using four chemotherapeutic drugs including bleomyci...

Journal: :international journal of environmental research 2010
j. nouri a.h. mahvi e. bazrafshan

in this study, the performance of electro-coagulation in combination with aluminum sacrificial anode, in removal of zinc and copper has been investigated. several parameters, such as pollutant concentration, ph, electrical potential, cod, turbidity and contact time were studied to achieve a higher removal capacity. variable concentrations (5-50-500 ppm) of zinc and copper solutions were prepare...

2012
Kathryn M. Barnes

Solar energy has gained more attention in recent years due to increased concerns about the continued use of fossil fuels. Solar energy is a form of renewable energy, and solar energy technology does not release greenhouse gases responsible for climate change. While photovoltaic (PV) cells, which convert sunlight into electrical energy, are becoming more widely used, they are limited in their ab...

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