Yoshie Echizen

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We manufactured a new fermented tea by tea-rolling processing of third-crop green tea (Camellia sinensis) leaves and loquat (Eriobotrya japonica) leaves. The mixed fermented tea extract inhibited pancreatic lipase activity in vitro, and effectively suppressed postprandial hypertriacylglycerolemia in rats. Rats fed a diet containing 1% freeze-dried fermented(More)
Magnetic, transport, thermal, and crystallographic properties are reported for single crystals of CeRhSn crystallizing in the hexagonal ZrNiAl-type structure. We found high anisotropy in both electrical resistivity (ra'5rc at 70 K! and magnetic susceptibility (xc'10xa at 0.4 K!, which is atypical for a valence-fluctuating Ce compound. At low temperatures,(More)
This paper presents a class D series resonant inverter with a series capacitor and an auxiliary switch. A capacitor and a switch connected in parallel are added to the series resonant circuit in series, which regulates the output power without frequency modulation. The entire impedance is changed by the difference between the switching frequency and the two(More)
Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub y/ (Bi-2212) superconducting single crystals were prepared by a modified vertical Bridgman method using large alumina crucibles of a 26 mm bore diameter with cone-shaped bottom. In order to obtain large and high quality single crystals, we optimized growth conditions using the large crucibles. We obtained a large(More)
We present a detailed study of the field ~B! temperature ~T! phase diagram of the heavy-fermion antiferromagnet Ce7Ni3 that crystallizes in the hexagonal Th7Fe3-type structure with three nonequivalent Ce sites (Ce I , Ce II , and Ce III). This compound undergoes two magnetic transitions at TN151.9 K and TN250.7 K in zero field. Below TN1, an incommensurate(More)
We report the observation of an unexpected magnetic transition in the Kondo semimetal CeNiSn under uniaxial pressures. For Pia , both the specific heat C and magnetic susceptibility x decrease steadily with increasing P. By contrast, once Pib and Pic exceed 0.13 GPa, C(T) exhibits a distinct jump at 4 K followed by a peak at 3 K. The concomitant peaking in(More)
The effect of doping in CeNiSn has been studied by the measurements of electrical resistivity, Hall coefficient and magnetic susceptibility for single crystals of CeNi12xTxSn (T5Co, Cu, and Pt! and Ce12yLayNiSn (x ,y50.01 and 0.05!. All these impurities are found to increase the residual resistivity by several times up to 1 mV cm for x or y50.01, while for(More)
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