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만성신부전으로 의심되는 환자에서 주증에 따른 한의학적 변증치료의 예(例)
이경환,김용성,곽정진,류형천,김행진,Lee Kyung-Hwan,Kim Yong-Seung,Kwark Jung-Jin,Ryu Hyung-Chun,Kim Haeng-Jin 대한한방내과학회 2003 大韓韓方內科學會誌 Vol.24 No.4
Renal Failure is called a disorder of kidney excretion induced by glomerulus filtration rate(GFR) decrease. GFR is measured by Blood Urea Nitrogen(BUN) and Cretinine in blood. This study is about Oriental diagnosis and treatment of Chronic renal failure(CRF) patients. We treated five cases which were diagnosed as CRF by using methods used in oriental medicine, the application of Youkmijihwang-tang(六味地黃湯加減). In most such cases, we concluded that the results turns better as the symptoms like fatigue and digestive disorder decreases and the decrease of BUN and Creatinine in blood as well.
모의실험을 통한 남해 멸치(Engraulis japonicus)의 어획조건에 따른 가입당 생산 분석
이경환,고성길,정석근,Lee, Kyunghwan,Go, Seonggil,Jung, Sukgeun 한국수산과학회 2017 한국수산과학회지 Vol.50 No.4
To evaluate the consequences of possible fisheries regulations of anchovy Engraulis japonicus in the Korea Strait, we developed and applied a simulation-based yield-per-recruit (Y/R) model that considered temperature-dependent growth and size-dependent mortality, covering the egg to adult stages. We projected changes in commercial yield and egg production of anchovy with respect to varying biological reference points of 1) the instantaneous fishing mortality, 2) the minimum fork length of anchovy allowed to catch for protecting smaller anchovy ($L_{c,min}$), and 3) the maximum fork length allowed to catch for protecting bigger anchovy ($L_{c,max}$). Our Y/R model showed that the anchovy yield will be maximized at ca. $1.4{\times}10^6tons$ when $L_{c,min}$ ranges between 42-60 mm or at ca. $0.8{\times}10^6tons$ when $L_{c,max}$ ranges from 88-160 mm. At $L_{c,min}=30mm$, the present minimum length of catch, our simulations indicated that the anchovy yield can reach a maximum of $1.2{\times}10^6tons$ in the long-term when the present fishing effort, which annually yields ca. $0.2{\times}10^6tons$ of anchovy, can be increased by a factor of 28. We expect that our simulation-based Y/R model can be applied to other commercially-important small pelagic species in which the traditional Beverton-Holt Y/R model is difficult to apply.
학회순례 - 73년 창립, 매년 논문 1천여편 발표 "한국정보과학회"
이경환,Lee, Gyeong-Hwan 한국과학기술단체총연합회 1999 과학과 기술 Vol.32 No.5
1973년 설립된 한국정보과학회는 5천8백여명의 회원과 2백9개의 기관으로 구성되어 있으며 봄과 가을에 학술논문 발표회를 개최하고 있다. 작년에는 55개의 학술행사를 개최하면서 1천7백여편의 논문이 발표된 이 학회는 전산교육연구회 등 16개의 분과연구회로 나뉘어 심도있는 학술활동을 계속하고 있다. 그리고 매년 개최되는 정보올림피아드를 통해 정보통신분야의 영재 청소년을 배출하고 있다.