• Journal of Korean Medical classics
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• v.32 no.1
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• pp.49-59
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• 2019

Objectives : Cho Wonhui published his book "Ounyukgi-Uihakbogam", in which Ungi was used for clinical purposes, but his life is hardly known. Conclusions & Conclusions : Cho Wonhui passed the Jinsa exam in 1894 and entered Seonggyungwan. Gojong recommended him to study medicine, and in 1907, he treated a person (later Taisho Emperor) who visited the Korea Empire and achieved his reputation. He was invited to Japan with this opportunity and received a degree from Meiji Emperor, a philosophical doctor of medicine. He passed the medical intern examination in 1923, and in 1938, he published the book "Ounyukgi-Uihakbogam". After 6 25, the Ceonundang oriental medicine clinic was opened in Busan and patients were treated. In 1963, he died at the age of 90.: This study met Cho Wonhui's descendants and talked about the life of Cho Wonhui and comprehensively summarized the related data.

• Journal of Korean Medical classics
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• v.30 no.4
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• pp.1-17
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• 2017

Objective : Establishment and development of Woongihak on Korea requires detailed study into its contents including each period's Woongihak theory and clinical practices. Method : Woongihak is assumed to have been introduced during the Coreyo Dynasty. Then its development stage is divided into early, middle, later periods in Chosun dynasty, and the category further developed into the Japanese colonial period and then the post-liberation era. These periods were given respect to while medical textx and data related to Woongihak were collected and analyzed. Result & Conclusion : The general consensus is that Woongihak was introduced for the first time during the early period of Coryeo Dynasty, but there was no text around this era regarding Woongihak could have been found. Woongihak was found in Uibang-yuchwi, which entered Chosun Dynastyin early period and was published, where it annotated Sanghanjiggyeog, Saminbang, and eumjeungyaglye. Donguibogam, which was published during the middle period, introduced Woongi by hosting a sentence of Cheonjiungi, and Chochanggyeol was published during the late period and brought the level of Woongihak in Korea a step further. Lectures on Diagram of Woongihakw as published during the Japanese colonial era, but it lacks uniqueness since it was a translation of Suwenrushiyunqilunao. Another book published during this period was OunyukgiUihakbogam by Cho Wonhui. It brought a heavy influence on the generations to come because it drew up prescriptions through the Gaegun and Gaeggi or Date of Birth of Date of impregnation. It was easy to use and highly potent. The author of this paper also collected about 55 types of Woongi texts published after the liberation of Korea, but there are sure to be many that is missing from the collection.

• 제어로봇시스템학회:학술대회논문집
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• 1997.10a
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• pp.1762-1765
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• 1997

Some ill-conditioned processes are very sensitive to small element-wise uncertainties arising in classical element-by-element model identifications. For such processes, accurate identification of simgular values and right singular vectors are more important than theose of the elements themselves. Singular values and right singular vectors can be found by iteraive identification methods which implement the input and output transformations iteratively. Methods based on SVD decomposition, QR decomposition and LU decomposition are proposed and compared with the Kuong and Mac Gregor's method. Convergence proofs are given. These SVD and QR mehtods use normal matrices for the transformations which cannot be calculated analytically in general and so they are hoard to apply to dynamic processes, whereas the LU method used simple analyitc transformations and can be directly applied to dynamic processes.

• Korean Chemical Engineering Research
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• v.52 no.5
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• pp.587-591
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• 2014

Experiments for a control method that enhances the yield to produce high quality red ginsengs have been performed. In the first steaming process of a series of processes to produce red ginsengs from raw ginsengs, there occur several undesirable defects on ginsengs such as cracks of ginseng body, inside cavity and inside white. These defects lead to deterioration in product qualities. Therefore an improved control method that minimizes these undesirable defects is needed in order to increase the yield of high quality red ginsengs. Until these days, the steaming process control methods such as controlling the steaming temperature and/or pressure have been studied. However, such control methods are not adequate enough to minimize the undesirable defects in steamed ginsengs. On the other hand, in this experiment, we suggest a control method that minimizes the undesirable defects through a weight control of steamed ginsengs, keeping the steaming temperature at $96{\sim}99^{\circ}C$ as usual. Experiments with the weight control show that amount of cracks on the steamed ginseng body can be reduced.