منابع مشابه
The internal resistance of supercapacitors
In this paper we study the transient behaviour of RC circuits with supercapacitors, varying R between 1 and 100 . We demonstrate that supercapacitors behave as ideal capacitors in series with an internal resistance (r ∼ 8 for C = 0.2 F, 5.5 V). This result is important to optimize the demonstration of RC circuits using a supercapacitor in series with a light bulb, because the r value is compara...
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AIM The aim of this study was to evaluate the fracture resistance of teeth submitted to several internal bleaching protocols using 35% hydrogen peroxide (35HP), 37% carbamide peroxide (37CP), 15% hydrogen peroxide with titanium dioxide nanoparticles (15HPTiO2) photoactivated by LED-laser or sodium perborate (SP). MATERIALS AND METHODS After endodontic treatment, fifty bovine extracted teeth w...
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متن کاملThe Effect of Internal Resistance on an Energy Harvester with Cubic Resistance Load
The objective of this paper is to study the effect of the internal transducer resistance on the dynamic behaviour and the output power of an energy harvester when it is attached to a cubic load resistance. It is seen that by considering the internal resistance, the dynamic equation of a conventional nonlinear energy harvester changes so that it is not easy to separate the linear damping from th...
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ژورنال
عنوان ژورنال: Nature
سال: 1995
ISSN: 0028-0836,1476-4687
DOI: 10.1038/375540a0