Bong-Han Kim

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In the current national critical infrastructures, SCADA systems and networks are playing very important roles. Unfortunately, most of closed-network SCADA systems have been considered as very secure against cyber-attacks. Because they use their own operating systems and communication/ network protocols, and their private networks are physically isolated(More)
This paper uses a model with time-varying coefficients in order to track changes in Feldstein–Horioka saving-retention coefficients over time. To the extent that such coefficients measure international capital mobility, the main empirical findings are as follows. First, the stability of the saving-retention coefficient is strongly rejected. Second, capital(More)
Continuous growth of construction equipment industry increasingly demands training environment to utilize construction equipment. For this solution, training simulator using virtual reality technology has been studied. In this study, Quest3D was used as for virtual reality development tool. Design of joint module for construction equipment was interactive(More)
The influence of amineptine, an antidepressant currently employed having mainly selective dopaminergic neurochemical activity, on the pressor responses evoked by norepinephrine (NE) and dopamine (DA) was studied in anesthetized whole rats. Amineptine at doses of 0.5, 1.5, and 5.0 mg/kg/30 min infused into the femoral vein of the rat caused a dose-related(More)
This study aims to develop a knowledge navigation framework based on realistic 3D in order to get coaching and advice in real time and recognize multi-relation easily and retrieve on the basis of compound knowledge objects. To do so, it proposed the methods of 3D visualization of compound knowledge, intellectual retrieval, and construction of compound(More)
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