Generally, It is introduced to well-known other models without considering tidal current of the field. The paper presents field measurements and numerical model solving velocity field of Cheonsu Bay by two-dimensional tidal model. It was proved that this scheme is easy to handle complex topography. Computed results is represented characteristics of tidal current for Cheonsu Bay. The results of the study can be summarized as follows ; 1. Tide form number has 0.21 value. Tidal range estimated 630.3 ㎝ on spring, 454.1 ㎝ on mean and 277.9 ㎝ on neap, respectively. 2. Tidal current has semi-diurnal form. Distance of traveling observed 16.6 ㎞ on flood and 15.5 ㎞ on ebb. 3. Tidal velocity showed reversing current. It was found that tidal velocity above 100 ㎝/sec is about 20 %. 4. Computed results are in good agreement with the observed data. Applying the algorithm to Cheonssu Bay, velocity fields and dry bank phenomena are simulated well in spite of complex topography. 5. An advanced study on the effects of open boundary conditions should be continuously performed.

The environmental regulation violation of the Korean firms is causing severe environmental pollution lately. Nevertheless, there are few studies on the firm`s pattern of environmental regulation violation. In this paper, for the pattern of environmental regulation violation of the Korean firms, we give a type of statistical data analysis using the correspondence analysis. Therefore, with more effective control and inspection based on this, we have an effective and enforceable system decreasing the violative firms.