Youhei Kawamura

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Corrosion can cause section loss or cracks in the steel members which is one of the most important causes of deterioration of steel bridges. For some critical components of a steel bridge, it is fatal and could even cause the collapse of the whole bridge. Nowadays the most common approach to steel bridge inspection is visual inspection by inspectors with(More)
After massive earthquakes and other large-scale disasters, existing communication infrastructure may become unavailable and, therefore, it can be quite difficult for relief organizations to fully grasp the impact of the disaster on the affected region. Consequently, this will be the cause of delays to offer the strategic assistance, and to provide water and(More)
A novel tone quality improvement method for a bone conduction voice is presented. In the present method, the tone quality of the bone conduction voice is converted to the similar quality of the air conduction voice. For the voice conversion, the present method uses a codebook, which consists of various paired code vectors of the bone and air conduction(More)
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