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석상은,강신우,이슬,박지은,윤영주,이정윤,Seok, Sangeun,Kang, Shinwoo,Lee, Seul,Park, Jieun,Yun, Young Ju,Lee, Jeongyun 사상체질의학회 2020 사상체질의학회지 Vol.32 No.2
Objectives The aim of this study was to review the current Sasang Constitutions studies on children and adolescents and to provide basic data for developing in a better direction of research. Methods Research articles on children and adolescents of the Sasang Constitutions studies were extracted from six databases. Published year, published journals, types of studies were classified. Subjects of research and clinical methods for the Sasang type classification were summarized, especially in clinical studies. Results A total of 26 selected research articles were published from 1990 to 2013 and 14 articles (54%) have been published in Journal of Sasang Constitutional Medicine and Journal of Pediatrics of Korean Medicine. 96% of the total researches were based on clinical studies. Psychological and physical characteristics by Sasang Constitutional type accounted for most of the clinical research studies subjects. But these studies were not performed with diagnostic tools only for children and adolescents. Discussion In this study, the necessity of developing methods of Sasang constitutional type classification for children and adolescents was confirmed. If accompanied by additional research based on this study, it is expected to be used in diverse fields with active collaboration or education.
TiO<sub>2</sub> 졸을 이용한 수중 Humic Acid의 광산화-화학적 산화법에 의한 부식산의 분해처리 기술에 관한 연구(I)-
석상일,안복엽,김미선,서태수,이동석,Seok, Sang Il,Ahn, Bok Yeop,Kim, Mi Sun,Suh, Tae Soo,Rhee, Dong Seok 대한환경공학회 2000 대한환경공학회지 Vol.22 No.6
가시광 영역에서 투명한 $TiO_2$ 졸을 이용하여 수중 humic acid의 광분해 특성을 고찰하였다. $TiO_2$ 졸은 $TiCl_4$ 용액의 가수분해 침전물인 $TiO(OH)_2$를 $H_2O_2$와 반응시켜 titanium peroxo solution (TPS)을 제조한 후, 이 용액을 온도와 시간의 함수로 열처리하여 제조하였다. Humic acid의 광분해를 위하여 사용된 졸의 적정 농도는 100ppm 전 후이었으며, photoluminescence(PL)를 이용하여 결정되었다. $TiO_2$ 졸의 humic acid에 대한 광촉매 효능은 TPS를 $100^{\circ}C$에서 12시간 이상 열처리한 졸을 이용할 때 가장 높았으며, 상용되고 있는 Degussa P25 보다 우수한 것으로 나타났다. 또한 상용의 분말로부터 유도된 현탁 반응은 처리수가 $TiO_2$로 인해 높은 탁도를 나타내는 반면, TPS로부터 유래한 졸은 거의 탁도를 나타내지 않고 높은 투명성을 보였다. The photo-oxidation of an aqueous humic acid solution using $TiO_2$ sols. which is transparent in visible range, was studied. The $TiO_2$ sols were prepared by a process wherein hydrogen peroxide was added to a gel of $TiO(OH)_2$ originated from hydrolysis of $TiCl_4$, and the resulting titanium peroxo solution(TPS) was heated. The concentration of $TiO_2$ used for photo-oxidation was about 100ppm, determined by comparing the photoluminescence(PL) intensity measured as a function of $TiO_2$ concentration. $TiO_2$ sols aged at $100^{\circ}C$ for more than 12h were found to exhibit a maximum rate in photocatalytic decomposition of humic acid. and the efficiency was better than that of Degussa P25. In addition, the resulting aqueous humic acid after photocatalytic decomposition with sols had an excellent transmittance of visible light, while that treated with Degussa P25 was still turbid. caused by $TiO_2$ particles.
휴리스틱 클러스터링(Heuristic Clustering)을 이용한 하이퍼텍스트 데이타베이스에서의 내부 클래스 표현
석상기,이강우 서울産業大學校 1993 논문집 Vol.37 No.1
Hypertext is a document that represents and manages the related informations similar to human associations by the nodes associated with links. In case of organizing so much data as a hypertext, it is hard to represent that data due to the lacking of conceptual and structural model. This paper presents the representation of internal class in hypertext database using the heuristic problems such as a disoriented problem. For this, we presents 8 heuristics and enhances the role of guidance through user's queries with 3 dynamic weight ranking.
石尙基 서울産業大學校 1985 논문집 Vol.21 No.1
There exist some problem in current IBM HANGUL subroutine. Those problems are the lower speed in data processing and the harder linkage between subroutines. So the overall system performances are degraded. In this thesis the subroutines are designed and implemented to solve those problems.
Lexical Analyzer의 Design을 위한 Algorithm의 실행에 관한 연구
石尙基 서울産業大學校 1983 논문집 Vol.19 No.1
The complier is composed of 5 main phase and 2 subphases-Lexical Analyzer, Syntax Analyzer, Intermediate Code Generator, Code Optimizer, Code Generator, Table Management and Error Handler. In these Lexical Analyzer, the first phase of compiler, is carving the source program into a sequence of atomic units called token. This paper implements the algorithm that converts the Regular Expression to NFA, NFA to DFA and minimize of DFA states for the design of a Lexical Analyzer.
석상묵 ( Sangmuk Seok ),이지영 ( Jiyeong Lee ) 한국환경영향평가학회 2015 환경영향평가 Vol.24 No.3
도로의 개발 등과 같은 선형적인 개발로 인해 생태계 파편화 현상이 발생함에 따라 야생동물 로드킬이 지속적으로 발생하고 있다. 이에 정부는 로드킬 저감대책의 일환으로 생태통로 및 유도펜스, 경고표지판 등 다양한 구조물의 설치를 통해 로드킬 저감방안을 마련하고 있다. 그러나 그간 국내에 설치되어 온많은 구조물들은 입지선정 및 목표종 선정, 관리 등의 미흡으로 인해 그 실효성에 대하여 많은 문제점이제기되어 왔다. 이러한 정책의 효과를 높이기 위해서는 로드킬 저감을 위한 구조물 설치구역 선정 시 실제 이용 대상이 되는 목표종의 선정 및 분석이 매우 중요하다. 이에 본 연구에서는 로드킬 지점과 야생동물 서식지 패치 간의 관계성을 파악하여 야생동물 서식지 패치의 공간적 위치가 로드킬 저감을 위한 정책마련 시 중요한 요소 중 하나로 활용될 수 있음을 제시하고자 하였다. 본 연구의 목표종은 선행연구를 통해 오대산 국립공원의 다람쥐로 선정하였으며, 다람쥐의 서식지 선호도 분석을 통해 서식변수를 선정, 중첩하여 다람쥐 서식지 패치를 도출하였다. 이후 로드킬 발생지점 정보와 Getis-Ord Gi 분석을 활용하여 로드킬 핫스팟을 도출하고, 서식지 패치-도로 간의 거리와 Gi Z-score 간의 상관분석을 통해 두 변수간의 상관관계를 파악하였다. 그 결과 두 변수 사이의 부적 상관관계가 나타남에 따라 서식지 패치와 도로가 인접할수록 Gi Z-score가 높아지는 경향을 보이는 것으로 나타났다. The ecosystem fragmentation due to transportation infrastructure causes road-kill phenomenon. When making policy for reducing road-kill it is important to select target-species in order to enhance its efficiency. However, many corridors installed in Korea have been raised issues about their effectiveness due to lack of considerations such as target-species selection, site selection, and management, etc. In this study, we are to grasp relationship between road-kill area and habitat patches and suggest that spatial location of habitat patches should be considered as one of the important factors when making policy for reducing road-kill. Habitat patches were presumed from overlying suitability index that chosen by literature review and road-kill hotspot was determined by Getis-Ord Gi analysis. Afterwards, we performed a correlation analysis between Gi Z-score and the distance from habitat patches to the roads. As a result, there is a negative correlation between two variables, It affects the Gi Z-score going up if the habitat patches and the roads become closer.