• Title/Summary/Keyword: second order effects

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An Analytical Study on Semi-Rigid Connections of 20-Story Braced Steel Structures (20층 가새 철골구조물의 반강접 접합부에 관한 해석적 연구)

  • Kang, Suk-Bong;Kim, Jin-Hyoung
    • Journal of Korean Society of Steel Construction
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    • v.12 no.1 s.44
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    • pp.1-8
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    • 2000
  • In this study, the effect of semi-rigid connections on the structural behavior of 20-story braced steel structure has been investigated utilizing the second-order elastic structural analysis program in which nonlinear behavior of beam-column connections and geometric nonlinearity have been considered. Global effects such as P-delta effect and sway at the top have been studied, as well as distribution of member force and combined stress in structural members as local effects. When the structure subjected to horizontal load and vertical load is equipped with lateral-load resisting system such as braces, replacement of shear connection with semi-rigid connection has not caused any problem in P-delta effect and top lateral displacement. Distribution of member forces resulted in reduction in member size for economic structural design.

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The Effects of Maternal Parenting Behavior, Relationships with Friends, and Relationships with Teachers on the Subjective Well-being of Children in Late Childhood (아동이 지각한 어머니의 양육행동, 또래와의 관계 및 교사와의 관계가 학령 후기 아동의 주관적 안녕감에 미치는 영향)

  • Bea, Ju Yeong;Doh, Hyun-Sim;Rhee, Sun Hee;Shin, Jung Hee
    • Korean Journal of Child Studies
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    • v.36 no.6
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    • pp.59-83
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    • 2015
  • This study examined the effects of maternal parenting behavior, relationships with friends, and relationships with teachers on the subjective well-being of children in late childhood. A total of 299 fifth and sixth grade students at elementary school (141 boys and 158 girls) participated in this study. The subjects completed questionnaires on maternal parenting behavior, relationships with friends, relationships with teachers, and their subjective well-being. The data were analyzed by means of Structural Equation Modeling (SEM). The results are as follows. First, maternal parenting behavior was found to have a direct effect on children's subjective well-being. Second, maternal parenting behavior was seen to have an indirect effect on children's subjective well-being through their relationships with friends. Third, maternal parenting behavior was found to have an indirect effect on children's subjective well-being through their relationships with their teachers. The findings from this study suggest that relationships factors established in both family and school need to be considered together in order to explain children's subjective well-being. In addition, this study emphasizes the relative importance of maternal parenting behavior in improving the subjective well-being of school-aged children, as compared to the relationships with both their friends and their teachers at school.

A moderating effect of empathy between emotional labor and organizational citizenship behavior (감정노동과 조직시민행동간 공감의 조절효과)

  • Han, Jin-Hwan
    • Journal of Digital Convergence
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    • v.12 no.6
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    • pp.161-170
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    • 2014
  • This study was conducted to see the effects of emotional labor as a job attitude on organizational citizenship behavior, and to verify the effects of adjusting empathy as an alleviating mechanism for such relationship in order to provide suggestions on finding ways to relieve hospital workers of emotional labor. Research was conducted on 347 nurses from medical institutions above hospital level in Chungcheongnamdo/bukdo and Daejeon-si. Summary of this research is as follows. First, deep acting of emotional labor was revealed to have a positive (+) effect on organizational citizenship behavior, and surface acting had a negative (-) effect. Second, empathy had a significant effect on organizational citizenship behavior and interaction between deep acting and empathy had a significant positive (+) effect on organizational citizenship behavior, but it was revealed that interaction between surface acting and empathy had no significant effect on organizational citizenship behavior.

ReliabIlity analysis of containment building subjected to earthquake load using response surface method

  • Lee, Seong Lo
    • Computers and Concrete
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    • v.3 no.1
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    • pp.1-15
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    • 2006
  • The seismic safety of reinforced concrete containment building can be evaluated by probabilistic analysis considering randomness of earthquake, which is more rational than deterministic analysis. In the safety assessment of earthquake-resistant structures by the deterministic theory, it is not easy to consider the effects of random variables but the reliability theory and random vibration theory are useful to assess the seismic safety with considering random effects. The reliability assessment of reinforced concrete containment building subjected to earthquake load includes the structural analysis considering random variables such as load, resistance and analysis method, the definition of limit states and the reliability analysis. The reliability analysis procedure requires much time and labor and also needs to get the high confidence in results. In this study, random vibration analysis of containment building is performed with random variables as earthquake load, concrete compressive strength, modal damping ratio. The seismic responses of critical elements of structure are approximated at the most probable failure point by the response surface method. The response surface method helps to figure out the quantitative characteristics of structural response variability. And the limit state is defined as the failure surface of concrete under multi-axial stress, finally the limit state probability of failure can be obtained simply by first-order second moment method. The reliability analysis for the multiaxial strength limit state and the uniaxial strength limit state is performed and the results are compared with each other. This study concludes that the multiaxial failure criterion is a likely limit state to predict concrete failure strength under combined state of stresses and the reliability analysis results are compatible with the fact that the maximum compressive strength of concrete under biaxial compression state increases.

The Effects of e-WOM's Information Characteristics and Reliability of e-WOM's Information on e-WOM's Perceived Usefulness and Acceptance (온라인 구전정보특성과 정보신뢰성이 지각된 정보유용성과 정보수용성에 미치는 영향)

  • Kim, Young Hun
    • Culinary science and hospitality research
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    • v.24 no.1
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    • pp.151-163
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    • 2018
  • Today, the development of internet brings many changes in formation exploration and acceptance. Not only the customers can come into contact much information about the firm and its product by quick and easy search, but also they produce information by themselves or can spread the information via the internet. Nowadays, customers are progressive information explorer and producer on online. In this sense, this study examined the effects of e-word-of-mouth information characteristics on the consumer's perceived usefulness and perceived acceptance of e-word-of-mouth information in the food service industry in order to suggest directions to enhances marketing strategies for marketer. The research model for this study was designed based on the hypothesis that the characteristics of e-word-of-mouth information and credibility of the information influenced both the user's perceived usefulness and acceptance. Based on total 277 customers obtained from the empirical research, this study reviewed validity, reliability and fitness of research model. The analysis results on these factors are as follow. First, the characteristics of e-word-of-mouth information; vividness, consensus, direction had an influence on the customer's perceived usefulness. Second, the characteristics of e-word-of-mouth information; vividness, consensus, direction had an influence on the customer's perceived acceptance. Third, the reliability of information had an influence on the customer's perceived usefulness and the credibility of e-word-of-mouth information perceived acceptance. Fourth, the customer's perceived usefulness had an influence on the customer's perceived acceptance.

Structural Relationship between Adolescent Athletes' Positive Thinking, Coping Flexibility, and Burnout (청소년 운동선수들의 긍정적 사고와 대처유연성 및 소진의 구조적 관계)

  • Song, Ki-Hyun;Kim, Seung-Yong
    • Journal of the Korea Convergence Society
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    • v.11 no.2
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    • pp.281-288
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    • 2020
  • The objective of the study was to identify the structural relationship between adolescent athletes'positive thinking and coping flexibility, burnout. In order to achieve such research goal, male and female athletes'from physical education middle and high schools across the nation were recruited; using a convenience sampling method, a total of 333 samples were selected as the final effective samples. The data went through a goodness-of-fit test for the whole model using SPSS 20.0 and AMOS 20.0 and a hypothesis test. The result is as follows: first, positive thinking was revealed to have significant influence on coping flexibility. second, repertories and flexible a subfactor of coping flexibility, had significant negative (-) effects on burnout, whereas reflective had no significant effects on it. Third, positive thinking was revealed to have no significant influence on burnout. In conclusion, although positive thinking is a variable that is based on internal information, positive thinking did not directly affect psychological burnout, but coping flexibility can be used to prevent burnout.

Users' Experience of Sharing Economy Service and Moderating Effect of Social Interaction: Focused on Bicycle-Sharing Service (공유경제서비스의 이용경험과 사회적 상호작용의 조절효과: 자전거공유서비스를 중심으로)

  • Yoon, Ah-Young;Kim, Sung-Min;Koo, Chul-Mo
    • The Journal of Information Systems
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    • v.26 no.4
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    • pp.87-106
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    • 2017
  • Purpose The main purpose of this study is to examine whether the expectations and outcomes of the bicycle-sharing service significantly influence users' expectation disconfirmation, satisfaction, and continuous intention to use. In addition, we will verify the moderating effect of social interaction in bicycle-sharing service on the relationship between satisfaction and continuous intention to use. Design/methodology/approach Based on previous studies dealing with determinants of bicycle use, users' expectations and outcomes of the bicycle-sharing service were measured by three variables; accessibility, convenience, and safety. To collect the data, we conducted a survey of undergraduates at a university located in Seoul for three weeks, beginning March 6. Participants completed the first questionnaire, which measured expectations of the bicycle-sharing service based on the attributes and social interaction before using the BSS. After a few weeks, the same participants completed the second questionnaire, which measured outcomes of the outcome, disconfirmation, satisfaction, and continuous intention to use the BSS. Only participants who completed both surveys received monetary compensation. In order to test hypothesis, the Smart Partial Least Square (SmartPLS) modeling technique was applied. Findings In terms of main effects, based on the expectation disconfirmation theory, the results indicated that there were significant relationship among expectation, performance, disconfirmation, and satisfaction. In particular, it was verified that disconfirmation completely plays a mediating role between performance and satisfaction. In addition, the moderating effect of social interaction was examined. There was a significant interaction effects of social interaction and satisfaction on the continuous intention to use for leisure purpose. Finally, this study is expected to contribute to the study of resource sharing in the field of tourism and provide baseline information for future research.

The Determinants for Discontinued Use of SNS: Perspectives of Rational Choice Theory and Social Comparison Theory (SNS중단의도의 결정요인: 합리적 선택이론 및 사회적 비교이론을 중심으로)

  • Yoo, Hyung-Wook;Son, Dal-Ho
    • The Journal of Information Systems
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    • v.26 no.4
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    • pp.39-62
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    • 2017
  • Purpose The purpose of this study is to investigate the factors which affect users' fatigue and reluctant intention of using a SNS. In particular, this study focused on the fatigue of SNS users, as the recent excessive use of SNS has led to negative effects such as invasion of privacy, addition and social overload. fatigue This research will explain how producing adverse effects by using SNS caused psychological and mental depression. Previous researches explained that mental fatigue associated with SNS is not simple one and it is complicated with various psychological factors. Considering this fact, this study introduced a behavioral economics concept and a social comparison theory in the research model. Design/methodology/approach For research purposes, this study developed research hypotheses in order to empirically examine the factors that affect SNS users' fatigue and reluctant intention. The empirical research was based on a poll done through 800 research candidates in the SNS fields and the final 451 responses were collected and used in statistical data analysis. The adaptability, trust, and validity to measurement model were verified and the structural relationship in the research model was analyzed through these 451 responses. Findings First of all, maintenance fatigue of SNS had a positive significant effect on coupling and fatigue of SNS and information privacy had a non-significant effect on fatigue. Second, coupling had a negative significant effect on rational inattention, however, perceived cost had a non-significant effect on rational inattention. Third, lateral/upward comparison had a positive significant on user's negative emotions. Meanwhile, user's negative emotions did not have a significant effect on rational inattention.

Study on the effectiveness of english-medium class (영어강의의 효과성에 대한 연구)

  • Cho, Jang Sik
    • Journal of the Korean Data and Information Science Society
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    • v.23 no.6
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    • pp.1137-1144
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    • 2012
  • Many universities stress gradually the importance of english-medium class in order to improve the international competitiveness and the internationalization of the university. In this paper, we compare english-medium class with korean class using course evaluation score. Also we analyze the factors that affect the effectiveness of the course evaluation score of english-medium class. First, logistic regression analysis is used to examine the main effects of subjects and individual characteristics. Also, decision tree analysis is used to examine the interaction effects for subjects and individual characteristics. The results of this paper are as follows. Grade, department category, class size, GPA and screening method affect the effectiveness of english-medium class. The highest effectiveness group of english-medium class is that grade is freshmen and department category is humanity. Also the group of the second highest effectiveness group is that grade is freshmen and department category is nature and art and GPA is high.

The Effects of Experience Factors have on Store Satisfaction and Store Loyalty for Experimental Fashion Stores - Focusing on Virtual Experience by Visual Stimuli - (체험적 패션 매장에서 체험 요인이 점포만족도와 점포충성도에 미치는 영향 연구 - 시각적 자극물을 통한 가상 체험을 중심으로 -)

  • Chae, Heeju;Kim, Minyoung;Ko, Eunju
    • Journal of the Korean Society of Costume
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    • v.66 no.4
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    • pp.1-17
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    • 2016
  • Fashion stores have to change to fit such the taste of individual customers taste and try to give unique experiences to the customers. They need to develop a special space that entertains customers, and entices them to visit and revitalize the off-line stores. This paper aims to analyze the experimental factors of stores, and how each of the factors impact customer experience in order to find out its effect on store satisfaction and store loyalty. Data was analyzed by using SPSS 18.0 and AMOS 18.0. Results of this study are as follows. First, Visual, Tactile, and Gustatory are the main senses that influence the emotional experience of the customers on a store visit. Second, three factors that influenced customer experience in experimental fashion stores are 'Causing Interest', 'Causing Concern', and 'Causing Relationship.' Third, the 'Causing Interest' factor and the 'Causing Concern' factor showed positive correlation with store satisfaction, while the 'Causing Relationship' factor did not impact store satisfaction, which affected store loyalty. Fourth, each experimental fashion stores can have different effect to consumer satisfaction and loyalty. Also, fashion store brands without an experimental store can cause various effects to consumers when a flagship store with an array of product information is formed. The conclusion drawn from this study will provide a guideline for fashion stores attract faithful customers by improving their store environment.