Masaaki Takagi

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A waterborne outbreak of cryptosporidiosis occurred among visitors at a hotel with a swimming pool, gymnasium, and other sports facilities, in northern Nagano Prefecture. The outbreak began in late August, peaked on August 27 and 28, and tapered off at the beginning of September 2004. On August 30, 288 clinical cases with digestive symptoms, including(More)
— For fuel economy of power system, Plug-in Hybrid Electric Vehicle (PHEV) should be charged late at night to level a load curve. This paper proposes an electricity pricing algorithm for load leveling, using variation method. Variation method is a mathematical technique that can bring a value of integral functional to the extreme value. We formulate a cost(More)
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