도로터널의 환기(IV)

조용철,유지오,남창호,Cho, Y.C.,Yu, J.O.,Nam, C.H. 대한설비공학회 1998 설비저널 Vol.27 No.3

도로터널의 환기

조용철,유지오,남창호,Cho, Y.C.,Yoo, J.O.,Nam, C.H. 대한설비공학회 1997 설비저널 Vol.26 No.6

도로터널의 환기(II)

조용철,유지오,남창호,Cho, Y.C.,Yu, J.O.,Nam, C.H. 대한설비공학회 1998 설비저널 Vol.27 No.1

도로터널의 환기(III)

조용철,유지오,남창호,Cho, Y.C.,Yu, J.O.,Nam, C.H. 대한설비공학회 1998 설비저널 Vol.27 No.2

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.

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.

SRF 제조․활용 시설 확대의 경제적 파급효과 분석

조용철(Yongcheol Cho),박소연(Soyeon Park),유승훈(Seunghoon Yoo) 한국에너지학회 2016 에너지공학 Vol.25 No.3

女子柔道選手들의 訓練狀態에 對한 調査硏究

趙容撤(Cho, Young-Chul) 용인대학교 무도연구소 1991 武道硏究所誌 Vol.3 No.1

유기성 폐기물 에너지화 시설 확대의경제적 파급효과 분석

조용철(Yong-Cheol Cho),박소연(So-Yeon Park),유승훈(Seung-Hoon Yoo) 한국혁신학회 2015 한국혁신학회지 Vol.10 No.2

정부는 폐기물 매립량을 획기적으로 줄이면서 보다 안정적인 자원순환사회를 구축하기 위해 유기성 폐기물 에너지화 시설을 확대하고자 한다. 이에 본 연구에서는 한국은행에서 가장 최근에 발표한 2013년 산업연관표를 이용하여 유기성 폐기물 에너지화 시설 확대가가져올 경제적 파급효과를 분석하고자 한다. 특히 유기성 폐기물 에너지화 부문을 외생화하여 분석함으로써 자기부문과 타 부문에 대한 효과를 구분한다. 유기성 폐기물 에너지화 시설확대의 경제적 파급효과를 정량화하기 위해 수요유도형 모형을 적용하여 생산유발효과, 부가가치 유발효과, 취업유발효과를 분석한다. 분석결과, 유기성 폐기물 에너지화 시설 확대를위한 1원 투자의 생산유발효과 및 부가가치 유발효과는 각각 1.0798원 및 0.1739원이었다. 또한 유기성 폐기물 에너지화 시설 확대를 위한 10억원 투자의 취업유발효과는 0.8820명으로 분석되었다. 이러한 정보는 유기성 폐기물 에너지화와 관련된 정책 입안에 유용하게 활용될 수 있다. The government is trying to expand the organic waste-to-energy(OWE) facilities in order to reducing landfill waste and establish a stable resource recycling society. In this regard, this study attempts to look into the economic effects of expanding the OWE facilities by applying an inter-industry analysis using a 2013 input-output table. In particular, the OWE sector is specified as exogenous to identify the economic effects of the OWE sector on other sectors. The production-inducing effect, value-added creation effect, and employment-inducing effect are quantified based on demand-driven model. The results show that production-inducing effect and value-added creation effect of expanding OWE facilities for the investment of 1.0 won are estimated to be 1.0798 and 0.1739, respectively. The employment-inducing effect of one billion of investment in the expanding OWE facilities is computed to be 0.8820 persons. This information can be utilized in predicting the economic effects of the OWE related activities or policy-making.

조선 초기 여진 관계의 변화와 동북면 지역 진출 과정

조용철(Cho, Yongcheol) 역사학회 2017 역사학보 Vol.0 No.233

Since its foundation, the Joseon Dynasty maintained friendly relations with some of Jurchen due to their support of the Joseon founder, King Taejo. For this reason, the Joseon could expand the territory in northeast area. However, when King Taejo laid down the scepter and his son King Taejong ascended the throne, some of the Jurchen became agitated and participated in Josaui’s rebellion(1402). Meanwhile, the Ming Dynasty actively promoted a policy of assimilation for the Jurchen. In response to this phenomenon, some of Jurchen intented to resist influence of the Joseon. In the 10th year of King Taejong’s reign(1410), the Udike invaded to the northeast of the Joseon territory. This meant that the influence of the founder King Taejo, who died in the 8th year of King Taejong’s reign(1408), had worn off. In response, King Taejong chose to attack the Jurchen to make new relations. But, the territory in the northeast suffered. Eventually, the Joseon had to retreat back behind the northeast border. However, by the reign of Sejong who succeeded Taejong, all negative attitudes of the incident had disappeared internally and positive aspects were emphasized. In result, the Joseon started to assert their right to northeast area again. It’s one of the Sejong’s policy to make holy their ancestors.