• 제목/요약/키워드: cohesion

검색결과 1,111건 처리시간 0.024초

S.I.G 공법으로 선단보강된 강관말뚝의 지지거동 (The Behavior of Bearing Capacity of Steel Pipe Piles Reinforced by Super Injection Grouting at Pile Tip)

  • 박영호;김낙영;육정훈;최진오
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2004년도 춘계학술발표회
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    • pp.20-27
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    • 2004
  • Reinforced twice than width of foundation with SIC under steel piles drived in cohesion soil and in the coal-limestone which heavily fractured. To analyze behaviour characteristic of steel piles, load transfer test was performed to steel piles attached with strain gauges to axial direction. After it passed 49days, dynamic load test was performed to set-up effect of steel piles bearing capacity. The results of test were compared to each other. According to the results, as the skin friction of steel pile was on the same condition, end bearing capacity of steel piles established on SIC solid of cemented milk in cohesion soil was three times than steel piles established on SIG solid of cemented milk in heavily fractured coal- limestone. After piles were driven and passes 49days, in case of piles on SIG solid of comented milk in cohesion soil the increaes of allowable bearing capacity was 442.9% and allowable bearing capacity of piles on SIG solid of cemented milk in heavily fractured coal-limestone increased 22.4%.

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개인과 집단의 특성이 지식창출에 미치는 영향 (The Effect of Individual and Team Characteristics on Knowledge Creation : An Analysis by Hierarchical Linear Model (HLM))

  • 강소라;김민선
    • Journal of Information Technology Applications and Management
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    • 제17권4호
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    • pp.19-38
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    • 2010
  • This paper investigates the effect of stress on knowledge creation. The goal stress of resource inadequacy and job stress had negative influences on knowledge creation. However, the cohesion and mastery climate of team had positive influence on knowledge creation. Therefore this paper verifies the moderate role of the cohesion and mastery climate of team on the relationship between stress and knowledge creation. The model developed was tested using data collected from knowledge based industry with 375 members in 69 teams in 12 different firms. A Hierarchical Linear Model (HLM) was used to test the hypotheses generated from the model. Results show that job stress had a negative influence on knowledge creation as we expected but the goal stress didn't. The mastery climate of team affected knowledge creation positively and moderated the relationship between the goal stress and knowledge creation. Furthermore, the team cohesion had a positive influence on knowledge creation. The study provided some implications that practitioners should consider the stress when they design jobs for team members and suggest them the way to manage their job stress when they work.

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일부 지역 청소년의 삶의 만족에 영향을 미치는 요인 (Levels of and Predictors of Satisfaction with Life in Korean Adolescent)

  • 구현영;박현숙
    • Child Health Nursing Research
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    • 제11권3호
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    • pp.322-329
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    • 2005
  • Purpose: This study was done to investigate satisfaction with life in adolescents, and to identify factors affecting satisfaction with lift for adolescents. Method: The participants were 540 adolescents. Data were collected through self-report questionnaires which were constructed to include satisfaction with life, mental health, family adaptability and cohesion, and school adjustment. The data were analyzed using the SPSS program. Results: Satisfaction with life in adolescents correlated with mental health, family adaptability and cohesion, and school adjustment. Satisfaction with lift in adolescents was significantly different according to scholastic achievement, parents being alive, economic level of family, and types of family cohesion and adaptability. Significant predictors influencing satisfaction with life in adolescents were school adjustment, family cohesion, mental health, and economic level of family, and these predictors accounted for $28.3\%$ of the variance in satisfaction with lift. Conclusion: The above findings indicate that satisfaction with life in adolescents is influenced by mental health, family function, and school adjustment. Therefore when nursing interventions are developed to improve satisfaction with life in adolescents, these factors need to be considered.

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청소년기 자녀가 인지한 아버지와의 의사소통 만족에 관한 연구 - 가족의 응집성과 적응성을 중심으로- (A Study on the Communication Satisfaction with Father Perceived by Adolescents - Focused on the Family Cohesion and Adaptability -)

  • 박옥임;이경주
    • 한국농촌생활과학회지
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    • 제4권2호
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    • pp.99-114
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    • 1993
  • This study is conducted to find out what differences are made on among home-environmental variables, family cohesion, adaption and communication, and to define what variables influence to communication satisfaction of adolescent children. Questionaire survey method was used. The subjects of this study were 578 male and female middle school students living in Kwangiu from July 6, 1992 to July 15, 1992. For the statistical analysis of data, frequency distribution, percentage, average, standard deviation, T-test, F-test, Pearson's correlation and regression analysis were performed. The main findings were as follows : 1) Family cohesion and adaptability variables showed significant difference according to adolescent's sea age, father's education level, income level, occupation and father's religion. 2) Communication showed significant difference according to adolescent's sex, age, father's age, education level, income level, occupation and father's religion. 3) Communication satisfaction showed significant difference about adolescent's age, father's income level. 4) Communication satisfaction showed significant difference by high level in reference to family cohesion and adaptability. 5) Communication satisfaction in reference to communication showed significant difference. 6) The most influential variable on communication satisfaction between fathers and their adolescents children was active response and marked positive influence in order family adaptability, friendly nonverbalism.

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도시주부의 가족응집력과 적응력에 따른 경제복지감 (A Study on the Urban Housewives Economic Well-Being According to Family Cohesion and Adaptability)

  • 계선자;한정화
    • 가족자원경영과 정책
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    • 제1권2호
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    • pp.59-77
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    • 1997
  • The purpose of this study is to investigate some related factors which influence subjective economic well-being of the urban housewives, based on family cohesion and adaptability. Questionnaires were distributed to the 1,800 housewives residing in Seoul. The 1261 data obtained were analyzed by Frequency, Percentage, Mean and Multiple Regression. The major findings of this study were summarized as follows. (1) There were significant differences on the economic well-being of the urban housewives according to the social demographic variables, the objective variables, the perceptions of the subjective variables, the conjugal variables, the perceptions of the subjective economics well-being by the urban housewives were in the rank of the perceptions of the subjective(R²=.37), the objective variable(R²=.33) and the family cohesion and adaptability(R²=.28). Based on the above findings, this study concludes that the intermediary variables. such as family cohesion and adaptability are essential elements for comprehending the urban housewives’economic well-being. Accordingly in has been found that the value of family remains important factors to guide in despite the radical changes. If greater attentions should be directed to the social welfare, the quality of family life could be improved and stabilized.

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센서 네트워크에서 클러스터 응집도를 이용한 에너지 절약 방안 (An Energy Saying Method using Cluster Cohesion in Sensor Networks)

  • 김진수
    • 한국산학기술학회논문지
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    • 제8권3호
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    • pp.569-575
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    • 2007
  • 본 논문에서는 에너지 소비를 줄여 네트워크의 수명을 길게 하는 연구에 주안점을 두고 있고, 센서 네트워크의 수명을 길게 하기 위해 각 센서 및 클러스터 헤드에서의 데이터 전송량을 줄이기 위한 방법을 제안한다. 센서의 에너지 소모를 줄이는 가장 중요한 요소는 전송되는 메시지 수를 줄이는 것이다. 본 연구에서는 그러한 목적을 달성하기 위해 클러스터 응집도를 제안한다. 그 방법은 네트워크 토폴로지 측면에서 클러스터 응집도를 이용하여 클러스터 수를 적응적으로 조정하여 메시지 전송량을 줄이는 것이다. 이 기법은 네트워크 소통량을 크게 줄이고 네트워크의 수명을 연장시키는데 있어서 더 효율적이고 또한 효과적인 방법이다.

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사용자 인터페이스 품질 향상을 위한 다중 객체 기반 설계 모델 (Multiple Object-Based Design Model for Quality Improvement of User Interface)

  • 김정옥;이상영
    • 정보처리학회논문지D
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    • 제12D권7호
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    • pp.957-964
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    • 2005
  • 웹 환경이 급변함에 따라 인간과 컴퓨터간의 복잡한 상호작용을 지원하기 위한 인터페이스에 대한 설계가 필요하게 되었다. 본 논문에서는 사용자 인터페이스의 품질 향상을 위하여 객체 모델링 기법을 제시한다. 사용자 인터페이스의 가시적 응집도 향상을 위하여 비즈니스 이벤트객체 모델링, 태스크 객체 모델링, 트랜잭션 객체 모델링, 폼 객체 모델링과 같은 4 가지의 비즈니스 이벤트 객체를 제안한다. 본 논문에서 제시하는 4단계 설계를 통하여 사용자 인터페이스 프로토타입의 가시적 응집도를 향상시킬 수 있다. 이것은 비즈니스 이벤트의 가시적 응집도를 향상시킬 수 있도록 하고, 비숙련된 설계자도 향상된 사용자 인터페이스 프로토타입을 개발할 수 있도록 한다 또한 비즈니스 태스크의 이해도를 증진시키고 프로토타입 시스템 개발 회수를 줄일 수 있다.

The Changes in the Physical Properties of Soil with Tillage Methods (I)

  • Park, Jun-Gul;Lee, Gu-Seung;Cho, Sung-Chan;Chang, Young-Chang;Noh, Kwang-Mo;Chung, Sun-Ok
    • Agricultural and Biosystems Engineering
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    • 제6권2호
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    • pp.59-64
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    • 2005
  • In the study, the cone index, the cohesion and the internal resistant angle of soil were measured before and after tillage in order to suggest relative improvement in soil properties. The tillage methods tested in the study were five combinations of plow and rotary tillage operation and the experiments were performed on five selected test fields. The maximum tillage depth was 20 cm under the ground. The CIs for all the tillage operations were improved in comparison with those before tillage. The best combination of tillage operations for improving the CIs of soil was one plow operation followed by one rotary. After applying the tillage operations, the internal resistance angle reduced by 7-8 degree and the cohesion decreased up to about $1N/cm^2$ in comparison with those before tillage. We concluded that the cone index, the cohesion and the internal resistant angle of soil could be used as measures for representing the relative degree of tillage for a specific tillage operation. In addition, the study was useful as a basic research tool for developing an decision making system that determines an optimal tillage method with soil properties.

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학습관리시스템을 위한 사례 기반 응집도를 이용한 학습객체 자동 분류 (Automatic Classification of Learning Objects Using Case-based Cohesion for Learning Management System)

  • 김형일;윤현님
    • 한국정보통신학회논문지
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    • 제16권12호
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    • pp.2785-2791
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    • 2012
  • 본 논문에서는 학습 콘텐츠의 효과적인 관리와 재사용을 위한 학습객체 자동 분류 기법을 제안한다. 제안한 기법은 학습객체들의 발생 사례를 이용하여 학습객체들의 응집도를 생성하고, 응집도를 기반으로 학습객체들의 연관성을 측정하여 학습객체들의 자동 분류를 수행한다. 제안한 기법을 학습관리시스템에 적용하면 학습 콘텐츠의 개발 비용을 절감시킬 수 있는 장점이 있다. 시뮬레이션에서 확률 기반 기법의 평균 정확도는 28.20%로 나타났고, 응집도 기반 기법의 평균 정확도는 56.38%로 나타났다. 시뮬레이션을 통해 본 논문에서 제안한 기법이 학습객체 자동 분류에 효과적이라는 것을 확인하였다.

가족식사 및 가족기능이 초기 청소년의 학교적응에 미치는 영향 (Influence of Family Mealtime and Family Functioning on Early Adolescents' School Adaptation)

  • 이현아;최인숙
    • 가정과삶의질연구
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    • 제31권3호
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    • pp.1-13
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    • 2013
  • The purpose of this study was to examine the influence of family mealtime and family functioning (family cohesion, family adaptability, and communication with father and mother) on early adolescent school adaptation. Data of 3,145 middle school students from the Survey on the Family Values and Lives among Adolescents(2010) conducted by National Youth Policy Institute(NYPI) were used. The findings are as follows. First, there were significant differences in the frequency of having breakfast and dinner with father and having breakfast with mother, family cohesion, and communication with father according to gender. Second, hierarchical linear regression analyses revealed that household economic status, mother's employment status and adolescents' gender among demographic characteristics, having breakfast with father and having dinner with mother in family mealtime frequency, and all the variables of family functioning predicted adolescents' school adaptation. Finally, economic status, having dinner with mother, family cohesion, and communication with father and mother were associated with adolescents' school adaptation for both boys and girls. Mother's education and having breakfast with father were found to be significant for only boys, while mother's employment status and family adaptability were found to be significant for only girls. These findings could provide grounds for making family and education policy.