• Journal of Korean Medical classics
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• v.28 no.1
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• pp.173-194
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• 2015

Objectives : It is told that Hyungbangsabaeksan is important to treat the Soyangin(少陽人) disease in Dongyisusebowon. Though Hyungbangsabaeksan is widely applied in Soyangin(少陽人) disease, it is difficult to understand the meaning of Hyungbangsabaeksan and also hard to use clinically. In this study, We tried to reveal the fundamental meaning of the Hyungbangsabaeksan and the indication of Hyungbangsabaeksan. Methods : We mainly studied diseases in Dongyisusebowon. The use of drug in Soyang disease(少陽病) is relatively difficult. So we firstly reviewed Mang-um disease(亡陰證) that is almost close to the Interior syndrome(裏病) and an Analogous Hak(似瘧) that is one of the interior syndrome. Based on the understanding of interior syndrome, We tried to understand Hyungbangsabaeksan in the usage of the drug in Soyang disease(少陽病). Results : We found the key point of indication of Hyungbangsabaeksan in Mang-um disease(亡陰證) of Exterior cold syndrome(表寒病) and an Analogous Hak of Interior syndrome. Also based on that, We identified characteristics of Soyang disease(少陽病). Therefore, we inferred that there are significant symptoms in Soyang disease(少陽病) that Hyungbangsabeaksan could be applied. Conclusions : Reviewing the usage of Hyungbangsabeaksan in Mang-um disease(亡陰證) and an Analogous Hak, we found that Interior syndrome is important in indication of Hyungbangsabeaksan. Also we found that Hyungbangsabeaksan is especially applied when irreversible transition of the disease can be predicted. Based on this, We concluded Hyungbangsabeaksan is preventively used in specific Soyang disease(少陽病), of which the machanism of the disease is similar.

• Bulletin of the Korean Mathematical Society
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• v.50 no.5
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• pp.1683-1691
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• 2013

In this paper, we obtain the criteria that the Riemannian manifold B is Einstein or a gradient Ricci soliton from the information of the second derivative of $f$ in the warped product space $R{\times}_fB$ with gradient Ricci solitons. Moreover, we construct new examples of non-Einstein gradient Ricci soliton spaces with an Einstein or non-Einstein gradient Ricci soliton leaf using our main theorems. Finally we also get analogous criteria for the Lorentzian version.

• Journal of Ocean Engineering and Technology
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• v.23 no.5
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• pp.15-24
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• 2009

The results of a simulation study of variable liquid column oscillations in U-tanks with a novel control scheme are presented. The configuration under investigation is analogous to that of the tuned liquid-column damper used to suppress oscillatory motion in large structures like tall buildings and cargo ships. However, by virtue of an adequate controller, the response of amplitude of the U-tanks becomes larger in a desired frequency range. The motion of wave energy conversion system equipped with a variable liquid column oscillator is described by a series of nonlinear differential equations. The equations describe the motion of body under ocean wave excitation, and the motion of liquid with an air-spring effect caused by the compression and expansion of air in vertical liquid columns and air chambers. It is shown that the effect of the air-spring has a vital role to maintain the natural frequency of oscillation in the system to synchronize with the frequency of the ocean wave, thus the system provides the most effective mode for energy extraction from the ocean.