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The large-scale penetration of photovoltaic power generation systems (PVSs) may cause both the positive and negative impact on the existing electric power system. For the detail impact assessment, the prediction of the future electricity load pattern as well as the power output pattern of PVSs is very important, while it would be very challenging issue. As a first step of the impact assessment, this...
In this research, we propose the service management system design of robot technology (RT) service for interactive human-space design and intelligence to make robot provide appropriate services according to situations. For this, we propose to define that "service" as an order that the end user requests and "task" as elements that compose "service". We focus on the development...
A compact Raman lidar system for hydrogen gas leak detection was constructed. Laser-induced fluorescence at a distance of 70 m and Raman scattering light from N2 gas at short range could be detected.
In order to clarify the mechanism of electrical-tree inception which often determines the remaining life of power cables, we have been investigating electrical tree inception and propagation from water-tree degradation in polyethylene. Some of the results suggested that at 363 K, the continuous permissible temperature of XLPE cables, the extent of water-tree degradation was much higher than that of...
This paper proposes a black box approach which synthesizes lumped circuit model of the Foster type for a frequency-dependent characteristic element by the least squares method systematically. However there are two numerical difficulties to model them. One is the numerical stability problem which comes from limitation of effective numerical digits of data especially for wide frequency band ranges....
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