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방조제(防潮堤)의 침투류(浸透流) 해석(解析)에 관한 연구(硏究)
김관진 ( Kim Kwan Jin ),조병진 ( Cho Byung Jin ),윤충섭 ( Yoon Choong Sup ) 한국농공학회 1992 韓國農工學會誌 : 전원과 자원 Vol.34 No.1
A mathematical model, UNSATR which predicts the seepage flow through the body of dike especially under the tidal fluctuation has been developed. This model has been revised from UNSAT2 model which was developed on the basis of the saturated-unsaturated theory by Neuman. UNSATR has been verified and applied to the hydraulic model in order to estimated the seepage quantity, the formation of free water surface etc. The results lead to the following conclusions : 1. Seepage rates between the mathematical model and hydraulic model experiment are very similar to each other both in constant and transient water level conditions. 2. The lapsed time to be steady state of the free water surface becomes late as the tidal levels are relatively low mainly due to the seepage flow from the unsaturated zone of the body of dike. 3. Under the transient state of water levels, owing to the flow from the unsaturated domain, streamlines crossing to the free water surface are found and time lag during a falling tide may allow the free water surface inside the body of dike to stand at a high level than the outside water level. 4. The utility and validity of UNSATR model are convinced when the analyses on seepage problems through the porous embankment of the soil structures on the conditions of the steady and unsteady states are carried out.
김관진(Kwan-Jin Kim) 한국산학기술학회 2017 한국산학기술학회논문지 Vol.18 No.5
본 연구는 이용자들에게 많은 편의를 제공해주는 반면 정신적, 신체적 장애는 물론 학습능력 저하, 사회 부적응, 충동적 행동 등을 유발하는 스마트 폰 사용에 의한 병리현상과 그 예방에 대해 연구하고자 하였다. 스마트 폰 중독 요인을 살펴보고 요인간의 분석을 통해 신체적, 언어적 공격성과의 상관관계를 분석하고자 하였다. 고등학생을 대상으로 자료를 수집하였으며 자료의 분석을 위해 SPSSWIN 22.0 통계프로그램의 사용으로 연구 대상자들에 대하여 빈도분석, 주성분분석, Ttest, 상관관계분석, 희귀분석을 사용하였다. 연구 분석 결과 스마트 폰 사용 시간에 따라 ‘가상지향’, ‘일상장애’, ‘내성’, ‘금단’ 증상으로 판별 요인이 요약되었으며, ‘적대감’, ‘언어적 공격성’, ‘신체적 공격성’과의 상관관계 분석을 실시한 결과 신체적공격성 r=.668, 언어적공격성 r=.704, 적대감 r=.481로 유의한 정적인 상관관계를 보였다(P<.001). 본 연구는 스마트폰 과다 사용에 대한 공격성과의 상관관계를 분석하고자 함 이였으며 청소년들의 정서함양에 음악이 긍정적 효과가 있음을 근거로 제공하는데 의의를 두었다. 향후 스마트 폰 과다 사용에 따르는 병리현상에 대한 연구가 지속적으로 이루어져야 할 것이며 예방 할 수 있는 다양한 프로그램과 청소년들의 안정적인 정서에 도움이 되는 연구의 기초적 이론을 제공하기 위함 이다. This study examined the pathological phenomenon of smartphone addiction and prevention. The smartphone provides many conveniences but it also brings psychological and physical problems, such as failure of learning capacity, maladjustment, and impulsive actions. To provide actual proof, this material included correlation analysis among physical, verbal aggression and smartphone addiction factors through high school students. Using SPSSWIN 22.0, frequency analysis, mail factor analysis, T-test, correlation analysis, regression analysis were also included. The main factors of smartphone addiction discrimination were divided into ’aim for imaginary’, ’daily obstacles’, ’tolerance’, ‘withdrawal symptom’. Smartphone addicted group members show the result of r=0.668 (physical aggression), r=0.704 (verbal aggression), r=0.481 (hostility). (p< 0.001). This study focused on the aggression from smartphone overuse and the positive effect of music for adolescent’s mind stability. Moreover, suggestions for constant research on the pathological phenomena from smartphone addiction and prevention programs are made.
여가스포츠 프로그램 참가자의 조직동일시가 감정, 고객만족 및 재참여의도에 미치는 영향
김관진(Kwan Jin Kim),이광수(Kwang Soo Lee) 한국여가레크리에이션학회 2008 한국여가레크리에이션학회지 Vol.32 No.4
The purpose of this study was to examine the relationship among organizational identification, affect, customer satisfaction, and repurchasing intention of participant of leisure sport program. The subjects were regular members for five sports centers, and 365 data were collected and 354 of them were chosen as for final data analysis. Data processing was done for exploratory factor analysis using SPSSWIN Ver. 15.0 and confirmatory factor analysis and structural equation model analysis using AMOS 7.0. Based on the above study method and procedures, the result of the study are summarized as follows. First, personal identification and social identification had significant influence on affect. Second, social identification had significant influence on customer satisfaction. Third, affect had significant influence on customer satisfaction. Fourth, affect had significant influence on repurchasing intention. Fifth, customer satisfaction had significant influence on repurchasing intention.
대학생의 여가스포츠 참여 동기와 라이프스타일이 여가만족, 여가몰입 및 자아존중감에 미치는 영향
이광수(Kwang Soo Lee),김관진(Kwan Jin Kim) 한국여가레크리에이션학회 2010 한국여가레크리에이션학회지 Vol.34 No.2
The purpose of this study was to examine the relationship among participation motivation, life styles, leisure satisfaction, leisure flow and self-esteem of college student. The subject were college student for ten college, and 700 data were collected and 662 of them were chosen as for final data analysis. Data processing was done for exploratory factor analysis, regression analysis, confirmatory factory analysis and structural equation model analysis. Based on the research method and procedures, the result of the study are as follows. First, participation motivation had significant influence on leisure satisfaction. Second, life style had significant influence on leisure satisfaction. Third, leisure satisfaction had significant influence on leisure flow. Forth, leisure satisfaction had significant influence on self-esteem. fifth leisure flow had significant influence on self-esteem repurchasing intention.