• Title/Summary/Keyword: COHESION

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

  • Park, Young-Ho;Kim, Nag-Young;Yook, Jeong-Hoon;Choi, Jin-O
    • Proceedings of the Korean Geotechical Society Conference
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    • 2004.03b
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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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The Effect of Individual and Team Characteristics on Knowledge Creation : An Analysis by Hierarchical Linear Model (HLM) (개인과 집단의 특성이 지식창출에 미치는 영향)

  • Kang, So-Ra;Kim, Min-Sun
    • Journal of Information Technology Applications and Management
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    • v.17 no.4
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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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Levels of and Predictors of Satisfaction with Life in Korean Adolescent (일부 지역 청소년의 삶의 만족에 영향을 미치는 요인)

  • Koo, Hyun-Young;Park, Hyun-Sook
    • Child Health Nursing Research
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    • v.11 no.3
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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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A Study on the Communication Satisfaction with Father Perceived by Adolescents - Focused on the Family Cohesion and Adaptability - (청소년기 자녀가 인지한 아버지와의 의사소통 만족에 관한 연구 - 가족의 응집성과 적응성을 중심으로-)

  • 박옥임;이경주
    • Korean Journal of Rural Living Science
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    • v.4 no.2
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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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A Study on the Urban Housewives Economic Well-Being According to Family Cohesion and Adaptability (도시주부의 가족응집력과 적응력에 따른 경제복지감)

  • 계선자;한정화
    • Journal of Family Resource Management and Policy Review
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    • v.1 no.2
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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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An Energy Saying Method using Cluster Cohesion in Sensor Networks (센서 네트워크에서 클러스터 응집도를 이용한 에너지 절약 방안)

  • Kim, Jin-Su
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.3
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    • pp.569-575
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    • 2007
  • The main issue of this study is to find ways to lengthen the lifetime of network mainly by reducing energy consumption. This paper proposes how to reduce the amount of data transmitted in each sensor and cluster head in order to lengthen the lifetime of sensor network. The most important factor of reducing the sensor's energy dissipation is to reduce the amount of messages transmitted. This study proposes cluster cohesion for the purposes. The method is to use the cluster cohesion and manage the number of clusters adaptively and reduce the amount of message transmitted in network topology. This method should be much more efficient and effective as it reduces the network traffic significantly and increases the network's lifetime.

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

  • Kim Jeong-Ok;Lee Sang-Young
    • The KIPS Transactions:PartD
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    • v.12D no.7 s.103
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    • pp.957-964
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    • 2005
  • According to rapid growth of web environment, user interface design needs to support the complex interactions between human and computer. In the paper we suggest the object modeling method for Qualify Improvement of User Interface. We propose the 4 business event's object modeling phases such as business event object modeling, task object modeling, transaction object modeling, and form object modeling to enhance visual cohesion of UI. As a result, this 4 phases in this paper allows us to enhance visual cohesion of User Interface prototype. We have found that the visual cohesion of business events become strong and unskilled designer can develope the qualified user interface prototype. And it also improves understanding of business task and reduces prototype system development iteration.

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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    • v.6 no.2
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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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Automatic Classification of Learning Objects Using Case-based Cohesion for Learning Management System (학습관리시스템을 위한 사례 기반 응집도를 이용한 학습객체 자동 분류)

  • Kim, Hyung-Il;Yoon, Hyun-Nim
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.12
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    • pp.2785-2791
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    • 2012
  • In this paper, a method for automatic classification of learning objects is proposed for effective management and reuse of learning contents. Proposed method will create cohesion of learning objects using cases of learning objects and perform automatic classification of learning objects by measuring their relationship based on cohesion. Application of proposed method to learning management system has the advantage of reducing the costs for developing learning contents. Simulation has shown the average accuracy of 28.20% with probability-based method and 56.38% with cohesion-based method. Simulation has proved that the method proposed in this paper is effective in automatic classification of learning objects.

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

  • Lee, Hyun-Ah;Choi, In-Suk
    • Journal of Families and Better Life
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    • v.31 no.3
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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.