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The photovoltaic (PV) is widely spread now. However, the cost per watt should be still high and it should be low. In this paper we examined to maximize the PV output generation by improving the voltage control. We propose the new Maximum power point tracking (MPPT) control which is named initialization and repulsion PSO (TR-PSO). This MPPT control method has two features. One is when two or more local...
We have developed a positioning system that uses a phased array sensor to measure the distance and direction of multiple landmarks relative to the position of a mobile robot so that the robot can self-localize. The positioning system can control the strength and the width of the beam from the phased array sensor and observe the multiple landmarks at the same time. By using the distance and direction...
We demonstrate a highly functional Si-nanodot-array device that has three input gates and two output terminals. The device was fabricated on an SOI wafer using Si MOS processes. We confirmed that a single device can operate as both a half adder and a full adder when we carefully select the operation voltages.
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