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We report a portable polymerase chain reaction(PCR) device conducting multiple PCR reactions in less than 5 minutes. We designed a novel loop-shaped microchannel in order to circulate PCR reactants fast through it. Temperature differences among three zones in the microchannel continuously generate a buoyant convection along the microchannel. The microchannel is molded in a disposable polymer chip...
This paper presents a vision-based off-road terrain classification method that is robust despite large environmental variations caused by seasonal or weather changes. In order to account for an overall image feature variation, we adopted environmental sensors, and to train a neural network based classifier, constructed a database according to environmental conditions. Robust classification could be...
This paper reports on optical activation of Si nanowires and Si nanoribbons by coupling Er. Single crystalline Si nanowires with diameters 100 nm and with length exceeding mum, and Si nanoribbons with thickness of 5-10 nm and with length of a few hundred of mum were grown by vapor-liquid-solid (VLS) growth mechanism using metal catalysts. Such Er-activated Si nanowires display strong Er3+ luminescence,...
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