In Japan, many local mixed enterprises owned and operated jointly by local governments and private sectors had been established from the late 1980's to the early 1990's in order to provide public services more efficiently. At present, in Japan, many local mixed enterprises are confronted with a...

The main purpose of this paper is to evaluate how the form and urban policies of ga compact city h affect its economic activities. In general, bigger cities have more advantages such as agglomeration economies, but too-big cities have the disadvantages of external diseconomies such as...

A rigid lattice gas model of solid-liquid, liquid-gas, and solid-gas transformations is proposed. The total free energy is separated into a lattice part and a vibrational correction part. It is reported that the vibrational part plays an important role in obtaining the gas, liquid and solid...

In this paper, a control method with which it is possible to extract wind energy effectively, even when the system characteristic is unknown, is suggested. With this control method, it is possible to follow the quasi-maximum output only by measurements of the load terminal voltage and current,...

The two-dimensional thermal analysis code TAC-NC is modified from the analytical code TAC-2D in order to calculate temperature transients in the case of loss of forced cooling accidents of the HTTR (High Temperature engineering Test Reactor) such as a depressurization accident. The TAC-NC code...