Yuka Akizuki

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The purpose of this study was to compare the technical quality of commercial American and Japanese ranitidine tablets. Five brands of 150-mg USP tablets and six brands of 150-mg JP tablets were compared on hardness, friability, average weight, average content, content uniformity, and dissolution. The difference in hardness between American and Japanese(More)
In this paper, the planar spiral antennas for the ground penetrating radar (GPR) were calculated by using FDTD method. The frequency characteristics of the impedance ware discussed by changing the expansion angle of the planar element and the winding angle of the spiral. It was observed that a wide-band characteristics can be realized by a careful design of(More)
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