Shoichiro Yamada

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This paper proposes a fast heuristic method for the scheduling problem ,minimizing hardware costs of functional units, registers, and busses on the basis of an integer linear programming (ILP) model. In our method, the total computation time can be much reduced compared to the general ILP method, since we re -duce the number of the integer variables which(More)
This paper deals with the problem of automated placement of electronic components in a circuit layout by using a graph-space approach. In this approach, the relationships of connections among modules in a given electronic circuit are represented by a hypergraph. Then by using a graph-space approach, the vertices (representing the modules) are mapped into(More)
Air-liquid interface (ALI) is a microenvironment of aerodigestive tract. In our previous study, ALI promoted invasive growth of laryngeal squamous cell carcinoma (SCC); but its mechanism was unclear. Hypoxia is also related to cancer spread. Here we show that ALI with or without hypoxia accelerated invasive growth of laryngeal SCC cells, using collagen gel(More)
Carcinoma-stromal cell interaction and air-liquid interface (ALI) constitute a specific microenvironment that modulates the biological behavior of carcinoma cells of the upper aerodigestive tract. Although radiotherapy is a useful tool for treating carcinomas of this organ, effects of irradiation on carcinoma cells under carcinoma-stromal cell interaction(More)
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