Masaya Harakawa

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To clarify the mechanism of species difference in the induction of testicular interstitial cell tumor (ICT, Leydig cell tumor) between rats and mice, male Sprague-Dawley rats and ICR mice were fed procymidone at dietary concentrations of 700, 2000 or 6000 ppm and 1000, 5000, or 10,000 ppm, respectively, for 3 months. The Leydig cell functions were evaluated(More)
This paper presents real-time simulation results of a Permanent Magnet Synchronous Machine (PMSM) Drive in faulty and non-standard modes and validates these against an actual industrial PMSM drive system. The paper will put emphasis on the test of special and faulty modes in PMSM drives. Results of real-time simulation of a PMSM drive with an open phase and(More)
This paper presents a real-time electro-thermal simulation system which is a novel method of estimating the junction temperatures of power semiconductors. It calculates the junction temperatures of the power semiconductors in real time. The load current and the output voltage of an actual power conversion system are detected to calculate the instantaneous(More)
We concluded that a neutral subfraction of mannan from bakers' yeast (Saccharomyces cerevisiae wild type strain), abbreviated as WNM, was able to induce the release of leukotrienes from mouse peritoneal macrophages (M phi). The culture supernatant fluid of M phi from normal mice cultured with WNM caused a marked contraction of guinea pig ileum. This(More)
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