ICT 환경에서 오피스텔개발사업 의사결정요인에 관한 연구

조용철(Yong Chul Cho) 한국전자통신학회 2014 한국전자통신학회 학회지 Vol.7 No.1

본 연구의 목적은 ICT 환경에서 오피스텔 개발사업의 의사결정에 영향을 미치는 주요 요인들을 도출하기 위한 것이다. 오피스텔 개발 사업에는 각 요인의 계층별로 다양한 의사결정 변수가 존재한다. 이러한 변수 요인들을 계층의 특성 요인별로 집단화하여 의사결정 요인간의 상관관계를 분석해 이에 대한 상대적 중요도와 복합가중치에 의한 요인별 우선순위를 도출해 공급자 입장에서 각 전문 직군별로 오피스텔 개발사업 시 합리적인 의사결정 기준을 제시하는 데 있다. 복합가중치 분석결과 현금흐름의 적절성이 가장 높게 나타났으며, 전체 순공사비의 적정성, 입지지역 및 미래가치의 적합성, 분양가와 임대가격 및 분양조건의 적정성, 대중교통 빛 보행자의 접근성 등이 중요한 요인으로 분석되었다.

垂直衝突噴流에 關한 硏究

趙鏞喆(Yong-Chul Cho),金光龍(Kwang-Yong Kim),朴相圭(Sang-Kyoo Park) 한국항공우주학회 1989 韓國航空宇宙學會誌 Vol.17 No.4

임진강 유역 오염물질 총량관리를 위한 유량-수질 자료의 통계분석

조용철 ( Yong-chul Cho ),최현미 ( Hyeon-mi Choi ),이영준 ( Young Joon Lee ),류인구 ( Ingu Ryu ),이명구 ( Myung-gu Lee ),구동회 ( Donghoi Gu ),최경완 ( Kyungwan Choi ),유순주 ( Soonju Yu ) 한국환경영향평가학회 2018 환경영향평가 Vol.27 No.4

본 연구의 목적은 임진강 수질오염총량관리제도를 위한 단위유역의 2012년 1월부터 2016년 12월까지 유량과 수질자료를 통계분석기법에 이용하여 수질특성을 평가하는 것이다. 유량과 수질은 평균 8일 간격으로 측정하였으며 11개 항목을 상관분석, 주성분 분석, 요인분석, 군집분석에 사용하였다. 군집분석의 결과 공간변화에 따라 자연형 하천, 도시형 하천, 점오염원 영향이 큰 지점 등으로 3개의 그룹으로 분류되었으며, 오염원의 종류와 수질 유사성이 군집 분류에 영향을 미치는 것으로 나타났다. 일원 분산분석과 사후검정을 이용하여 군집간의 평균사이에는 통계적으로 유의한 수준의 차이가 있는 것으로 나타났다. 상관분석에서 COD_Mn와 TOC의 상관계수가 0.951(p<0.01)로 상관성이 통계적으로 유의하게 높게 나타났다. 주성분 분석 결과 3개의 주성분으로 전체 수질특성의 72%를 설명할 수 있으며 요인분석에서 주요 요인은 EC, BOD₅, COD_Mn, TN, TP, TOC 항목으로 나타나 유기물과 영양염류 간접지표가 수질에 영향을 미치는 것으로 나타났다. 본 연구에서 요인점수를 다중 선형회귀분석에 적용하여 회귀 방정식을 제시하고 임진강 유역 수질관리에 유기물 및 영양염류 간접지표 항목의 관리가 중요하다고 판단된다. The purpose of this study was assessment the quality of water by using the statistical analysis technique of the Water flow and water quality from January 2012 to December 2016 at the unit basin for total pollutant load management system (TPLMS) in the Imjin River. Water flow and water quality were monitored at an average of 8 day intervals, 11 parameters were used for correlation analysis, principal component analysis (PCA), factor analysis (FA), and cluster analysis (CA). The Hierarchical CA was classified into three according to the change of space, such as natural rivers, urban rivers, point with large influence of point pollution source, it was found that the type of contamination source the similarity of water quality affected the classification of cluster. Using one-way analysis of variance (ANOVA) and post-hoc Analysis, there were statistically significant differences between mean values among the clusters. Correlation analysis showed the correlation coefficient between COD_Mn and TOC was 0.951 (p<0.01) and the correlation was statistically significantly higher. According to the result PCA and FA, 3 principal components can explaining 72% of the total variations in water quality characteristics and main factor was EC, BOD₅, COD_Mn, TN, TP and TOC indirect indicators of organic matter and nutrients were influenced. This study presented the regression equation obtained by applying the factor scores to the multiple linear regression analysis and concluded that the management Indirect indicators of organic matter and nutrients is important for water quality management in the Imjin River basin.

용인대학교 60년사에 따른 무도체육박물관 기대효과

조용철(Cho, Yong-Chul),김도준(Kim, Do-Jun),송일훈(Song Il-Hun) 용인대학교 무도연구소 2013 武道硏究所誌 Vol.24 No.1

본 대학의 「용인대학교 60년사에 따른 무도체육박물관 전시실 보완 및 60년 역사연구」작업은 각 학과의 경기 종목 영역별에 내재된 의의와 가치를 도출하여 그 역사성과 정체성을 정립하고자 한다. 이와 같은 주체의식을 정립하기 위해 다음과 같은 기대효과를 도출할 수 있는데 이는 다음과 같다. 첫째, 학문적, 사회적 기여도이다. 이 전시실 보완 및 역사자료집 연구 작업을 통하여 각 학과의 경기 종목 영역별에 관한 「역사 정통성과 전통성 이념적 체제」를 학문적으로 재정립하는 연구가 진행되어야 한다. 둘째, 학문적 활용방안이다. 이 전시실 보완 및 역사자료집 연구 작업을 통하여 각 학과의 경기 종목 영역별에 관한 「철학 사상적 이념의 사유적 사고」를 학문적으로 재정립 하여야 한다. 셋째, 학문적 파급효과이다. 이 전시실 보완 및 역사자료집 연구 작업을 통하여 각 학과의 경기 종목 영역별에 관한 「무도체육학적 근본 개념 체계적 원리」를 밝혀, 이에 따른 의의와 가치를 명확히 제시할 수 있을 것이다. 이로 인해 교육 프로그램의 소중한 일환으로서 본 대학의 학문적 문화유산을 보습할 수 있을 것이다. The University`s “Yongin University 60 years history and the Martial Arts and sports museum exhibition 60 years history of complementary studies” majors in the work of each department to derive the intrinsic meaning and value that you want to establish a history and identity. In order to establish subject matter, such as the following potential benefits can be derived. First, the academic and social contribution is Historical data and complements the exhibition of work by each department majors through the “historical authenticity and traditional ideology system” to re-establish the academic research must be carried out. Second, take advantage of the academic approach. The historical data showrooms complements majors in each department through work “philosophy and ideological grounds thinking of ideas” should be reestablished and academically. Third, the impact of an academic. The historical data and showrooms complements majors in each department through job “systematic martial arts, physical education concepts and principles underlying biological” significance and value accordingly revealed will be able to clearly present. As a result of this training program as part of the University`s academic precious cultural heritage will be able to spread. <br/>

무도수련이 청소년의 학교생활적응 및 사회성발달에 미치는 영향

조용철(Cho, Yong-Chul),김미정(Kim, Mi-Jeong) 용인대학교 무도연구소 2007 武道硏究所誌 Vol.18 No.1

The purpose of this study was to examine how martial-art training affected the school adjustment and sociability of teenagers in an effort to prove the effectiveness of martial-art training as part of ideal education. The subjects in this study were high school boys and girls in Gyeonggi province. After a survey was conducted, the answer sheets from 411 students were selected and analyzed by SPSS Ver. 12.0 program in a way to serve the purpose of the study. The findings of the study were as follows: First, concerning the school adjustment of the students by demographic characteristics, the boys and girls were different from each other according to their gender in relationship with teachers, learning attitude, rule abiding and school-event participation. Their gender made a significant difference to their rule abiding(P<.05), and their relationship with teacher and school-event participation varied with their gender as well. Martial-art training made a difference to their relations with peers and teachers, and they were significantly different from one another in rule abiding and school-event participation according to the type of martial art they learned(P<.01). Second, in terms of the development of sociability by demographic characteristics, their stability and autonomy differed with their gender, and their age made a difference to their stability, dominance and sociality. Their activity level, stability and dominance varied with martial-art training experience, and the type of martial art they learned made a difference to their activity level. All the differences among them were significant(P<.01). Third, as for correlation between the subvariables of martial-art training and those of school adjustment, there was a positive correlation between them. Concerning the influence of martial-art training and school adjustment, their relationship with teachers was affected by two factors that included training term and intensity. One factor, training frequency, had an impact on their peer relations, and their rule abiding was influenced by a factor, which was training term. Their school-event participation was under the influence of an element that was training term. All the impact of martial-art training was significant at the 5% level of significance. Fourth, regarding correlation between the subvariables of martial-art training and those of sociability development, a very strong positive correlation existed between them. As to the influence of martial-art training on sociability development, their activity level was affected by one factor, training frequency, and their stability was influenced by two factors that involved training intensity and frequency. A factor, training frequency, exerted an influence on their dominance, and their sociability was impacted by a factor, training intensity. A factor, training intensity, had an impact on their autonomy, and all the influence of martial-art training was significant at the 5% level of significance.

오피스텔개발사업 의사결정요인에 관한 연구

조용철(Yong Chul Cho),민규식(Guy Sik Min) 한국부동산학회 2014 不動産學報 Vol.59 No.-

본 연구의 목적은 오피스텔 개발사업의 공급주체로서 참여하는 각 전문가그룹별로 의사결정에 영향을 미치는 주요 요인들을 도출하여 합리적 의사결정기준을 제시하기 위한 것이다. 분석결과 전체 평가항목에 대한 최상위계층의 중요도는 사업성 및 재원조달이 가장 높게 나타났으며, 입지지역 및 시장여건, 개발 및 분양계획의 순으로 나타났다. 전체 평가항목에 대한 복합가중치 분석결과 현금흐름의 적절성, 전체 순공사비의 적정성, 입지지역 및 미래가치의 적합성 등이 중요하게 제시되었다. 직군별 복합가중치 분석결과 시공사는 투자수익률의 적절성, 입지지역 및 미래가치의 적합성이 높게 나타났고, 분양대행사는 분양가, 임대가격 및 분양조건의 적정성, 입지지역 및 미래가치의 적합성이 높게 나타났으며, 금융기관은 현금흐름의 적절성, 전체 순공사비의 적정성이 높게 분석되었다. 본 연구는 오피스텔 개발사업 의사결정을 위한 변수들을 각 계층의 특성 요인별로 집단화하여 의사결정 요인간의 상관관계를 분석해 이에 대한 상대적 중요도와 복합가중치에 의한 우선순위를 도출해 공급자 입장에서 의사결정기준을 제시하였다. 1. CONTENTS (1) RESEARCH OBJECTIVES The purpose of this research is to generate major factors to influence the decision making process of officetel development project. The importance and the prioritized order of each factor generated by the complex weighting have been deduced through the comparative analysis of correlation between the decision making process factors by collectivizing the characteristics factors of hierarchy with these variable factors. (2) RESEARCH METHOD The research has been conducted on the document & data. Also, the AHP analysis has been conducted with an in-depth survey for experts in order to generate the relative importance of decision making factor. (3) RESEARCH FINDINGS As a result of complex weighting analysis, the adequacy of cash flow has been shown as the most important factor, and followed by the propriety of total construction cost, the suitability of location & future value, the propriety of sale price/condition & lease price as important factors. 2. RESULTS Based on the analysis of result significance, the importance of finance & business feasibility have been shown relatively to be the highest. The propriety of return of investment ratio has been shown as the highest item in case of the constructor, and sale price/condition & lease price in case of the sales agency, and the adequacy of cash flow in case of the financial institution.

통계분석 및 수질지수를 이용한 남한강 하류 유역의 수질 평가

조용철 ( Yong-chul Cho ),최현미 ( Hyeon-mi Choi ),류인구 ( In-gu Ryu ),김상훈 ( Sang-hun Kim ),신동석 ( Dongseok Shin ),유순주 ( Soonju Yu ) 한국물환경학회(구 한국수질보전학회) 2021 한국물환경학회지 Vol.37 No.2

Water pollution in the lower reaches of the Namhan River is getting worse due to drought and a decrease in water quantity due to climatic changes and hence is affecting the water quality of Paldang Lake. Accordingly, we have used a water quality index (WQI) and statistical analysis in this study to identify the characteristics of the water quality in the lower reaches of the Namhan River, the main causes of water pollution, and tributaries that need priority management. Typically, 10 items (WT, pH, EC, DO, BOD, COD, SS, T-N, T-P, and TOC) were used as the water quality factors for the statistical analysis, and the matrix of data was set as 324 × 10·1. The correlation analysis demonstrated a strong correlation between Chemical Oxygen Demand (COD) and T-P with a high statistical significance (r=0.700, p<0.01). Furthermore, the result of principal component analysis (PCA) revealed that the main factors affecting the change in water quality were T-P and organic substances introduced into the water by rainfall. Based on the Mann-Kendall test, a statistically significant increase in pH was observed in SH-1, DL, SH-2, CM, and BH, along with an increase in WQI in SH-2 and SM. BH was identified as a tributary that needs priority management in the lower r eaches o f t he N amhan R iver, with a “ Somewhat p oor” ( IV) g rade i n T -P, “Fair” g rade i n WQI, and “Marginal” grade in summer.

유도지도자의 지도행동유형이 집단응집력 및 성원만족에 미치는 영향

조용철(Cho, Yong-Chul),최숙이(Choi, Sook-Ie) 용인대학교 무도연구소 2007 武道硏究所誌 Vol.18 No.1

The purpose of this study was to make a quantitative investigation into the impact of the leadership behavior style of Judo instructors on group cohesion and the satisfaction of group members in a bid to help determine what type of leadership style and profile Judo instructors should have. The subjects in this study were 278 players who were selected from a population that consisted of Judo players in Seoul and Gyeonggi province who joined Korea Judo Association. After a survey was conducted, the players who gave completed answer sheets were selected. The collected data were analyzed with SPSS PC+ Ver. 10.0 program in a way to serve the purpose of the study, and the findings of the study were as follows: First, there was a positive correlation between the leadership behavior style of Judo instructors and group cohesion. Regarding the impact of leadership behavior style on group cohesion, leadership behavior style exerted a positive influence at the 1% level of significance on social cohesion at a personal(training, social support and reward) and collective(authority, training, social support and reward) level, and on task cohesion at a personal(democracy, social support and reward) and collective(democracy and social support) level. Second, in terms of correlational relationship between the leadership behavior style of Judo instructors and the satisfaction of the group members, there was correlation among leadership behavior style, task reception and social interaction. The leadership behavior style had a positive impact at the 1% level of significance on their satisfaction with task reception (training and authority), social interaction(training and reward) and coach behaviors (training, democracy and reward). Third, as for the correlation of the extent of the workout of the Judo players to group cohesion and satisfaction, there was a positive correlation among their extent of exercise, satisfaction and coach behaviors. In regard to the influence of the extent of exercise on group cohesion, social cohesion at a personal level was under the influence of exercise hours and career at the 1% level of significance, and workout hours and career had a positive impact at the 1% level of significance on personal and group cohesion. Concerning the impact of the extent of workout on satisfaction, satisfaction with task reception was positively affected by workout hours at the 1% level of significance, and satisfaction with social interaction was positively influenced at the 1% level of significance by workout career and hours. Their satisfaction with coach behaviors was under the positive influence of workout hours at the 1% level of significance.

수중운동체의 극점 배치를 갖는 혼합 H²/H°° 제어기 설계

조용철(Yong Chul Cho),김종해(Jong Hae Kim),박홍배(Hong Bae Park) 대한전자공학회 1998 대한전자공학회 학술대회 Vol.1998 No.6

댐 방류량에 따른 통계학적 수질 평가

조용철 ( Yong-chul Cho ),구동회 ( Donghoi Gu ),최현미 ( Hyeon-mi Choi ),박주혜 ( Ju Hye Park ),박민지 ( Min-ji Park ),이영준 ( Young Joon Lee ),유순주 ( Soon Ju Yu ) 한국물환경학회(구 한국수질보전학회) 2018 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2018 No.-