Kenya Konishi

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To reduce the iron loss of a reactor stacked with non-oriented steel plates, we have proposed the method of loss reduction improving the iron core configuration using the magnetic field analysis taking account of the laminated structure by the homogenization technique. In this paper, the iron loss reduction method is expanded to a reactor stacked with(More)
We present observations of SCP 06F6, an unusual optical transient discovered during the Hubble Space Telescope Cluster Supernova Survey. The transient brightened over a period of ∼100 days, reached a peak magnitude of ∼21.0 in both i775 and z850, and then declined over a similar timescale. There is no host galaxy or progenitor star detected at the location(More)
We present observations of SCP 06F6, an unusual optical transient discovered during the Hubble Space Telescope Cluster Supernova Survey. The transient brightened over a period of ∼100 days, reached a peak magnitude of ∼21.0 in both i775 and z850, and then declined over a similar timescale. There is no host galaxy or progenitor star detected at the location(More)
In this paper, a simple structure of L and T shaped butt joints composed of anisotropic and isotropic block cores is proposed. The iron loss of a three-phase reactor having the proposed joints is compared with that having ordinary joints composed of anisotropic block cores only. It is shown that the iron loss can be reduced by applying the proposed joints(More)
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