Toshiya Ishikawa

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The goal of this paper is to theoretically account for business cycle asymmetries of deepness and steepness. The former means that recessions are deeper than expansions are tall, and the latter that recessions are steeper than expansions. In this paper I introduce the process of technology diffusion and learning like general purpose technology in the(More)
Recently, improvements in robots with human affinity have become necessary. Such robots need artificial muscles that are similar to human muscles. This improvement can be achieved by designing a telescopic actuator comparable to that of a human muscle cell. We studied a shape memory alloy actuator protected by a rolled film tube. In this study, the actuator(More)
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