• Journal for History of Mathematics
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• v.18 no.4
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• pp.1-16
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• 2005

Chosun dynasty mathematician Park Yul (1621 - ?) wrote San Hak Won Bon(算學原本) which was posthumously published in 1700 by his son Park Du Se (朴斗世). It is the first mathematics book whose publishing date is known, although we have Muk Sa Jib San Bub (默思集算法) by Gyung Sun Jing (慶善徵, 1616-?). San Hak Won Bon is the first Chosun book which deals with tian yuan shu (天元術) and was quoted by many Chosun authors. We do find it in the library in Korea University. In this paper, we investigate its contents together with its historical significance and influences to the development of Chosun dynasty Mathematics and conclude that Park Yul is one of the most prominent Chosun dynasty mathematicians.

• Proceedings of the KSME Conference
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• 2005.11a
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• pp.17.2-17.2
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• 2005

• Journal of Sasang Constitutional Medicine
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• v.21 no.1
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• pp.263-269
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• 2009

1. Objective This study is about a Soeumin patient who had Yul Gyuk similarity with anorexia, nausea, sialism. In this study, we report the effects of Sasang constitutional treatment to this patient. 2. Methods This patient was treated by Soeumin's constitutional medications and acupunture according to the result of Sasang constitutional diagnosis. 3. Results and Conclusions This patient's chief complaints were anorexia, nausea, and sialism. By using Gyejibanhasaenggang-tang mainly, he showed positive response about his symptom. This study shows that Gyejibanhasaenggang-tang has effect to Yul Gyuk similarity in Soeumin.

• Proceedings of the Mineralogical Society of Korea Conference
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• 2005.05a
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• pp.41-44
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• 2005

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.36 no.3
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• pp.140-149
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• 2023

Objectives : The purpose of this study is to present the effect of subcision, microneedle therapy system and herbal peeling therapy which is treatment of Korean medicine to atrophic acne scar patients. Methods : We administered subcision, microneedle therapy system and herbal peeling therapy to atrophic acne scar patients and tested the results by Qualitative Global Acne Scarring Grading System and Korean Acne Grading System as well. Results : After the treatment, all of the patients showed improvements in Qualitative Global Acne Scarring Grading System and Korean Acne Grading System as well. Qualitative Global Acne Scarring Grading System of patients changed from grade 2.71±0.71 to grade 1.14±0.86 along with the change of Korean Acne Grading System from grade 1.57±0.57 to grade 1.00±0.00. Conclusions : Subcision, microneedle therapy system and herbal peeling therapy may be effective in the treatment of moderate to severe acne scars, and could be applied in clinical practice.

• Proceedings of the KIEE Conference
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• 1979.08a
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• pp.34-36
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• 1979

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2013.11a
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• pp.90-92
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• 2013

• The tire
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• s.114
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• pp.30-36
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• 1984

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2012.03a
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• pp.194-197
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• 2012

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2012.03a
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• pp.101-103
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• 2012