• 한국의류산업학회지
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• 제21권1호
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• pp.36-45
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• 2019

In 2000s, the rapid growth of domestic and foreign fast fashion brands led to an increase in the frequency of shopping for consumers and a significant reduction in the average life span of fashion products. As the kinds and quantity of fashion products owned by individuals increase, the problem of rational clothing management becomes a new concern. The purpose of this study was to investigate the demographic, socio-psychological and purchase behavior factors influencing the frequency of closet cleanup behavior. A total of 278 questionnaires were analyzed. Frequency, exploratory factor analysis, reliability, t-test and regression analysis were used for data analysis using SPSS 22.0. This study results were as follows. First, the frequency of women's closet cleanup behavior was higher than that of men's closet cleanup behavior. Second, the number of brothers and sisters significantly affected the frequency of closet cleanup behavior. Third, the stronger the attachment to fashion products, the higher the frequency of closet cleanup behavior. Fourth, the lower the fashion product retention tendency, the higher the frequency of closet cleanup behavior. Fifth, the higher the frequency of purchasing fashion products, the higher the frequency of closet cleanup behavior. The results of current study provide various implications for educators and marketers who are interested in reasonable management behavior of fashion goods.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2002년도 가을 학술발표회 논문집
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• pp.795-798
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• 2002

Recently. the properties of early-age concrete are increasingly important because these properties directly influence the behavior of early-age concrete structures including stress and cracking behavior. Nevertheless, the studies on early-age concrete are limited to strength and temperature development. The purpose of present study is to propose a simple and rational method which can predict the stress and strain behavior of young age concrete. A series of test have been done to measure the temperature development, strains and stresses in concrete members. The concept of equivalent age was used to define the degree of hydration and this degree of hydration was used to calculate the strength and elastic modulus. The present study indicates that the calculated stresses correlate fairly well with measured stresses. The consideration of critical degree of hydration in calculating stresses gives more accurate results. The present study provides useful method and data in evaluating early-age behavior of concrete structure.

• 대한가정학회지
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• 제45권9호
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• pp.1-13
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• 2007

By targeting 113 gifted underachievers and 128 gifted achievers from 17 elementary schools, this study examines the home variables that affect gifted children's underachievement. In an effort to determine home variables of gifted achievers and underachievers, their homes' socio-economic status was analyzed and their parental child-rearing behavior was examined. First, the home environments of the gifted achievers and underachievers were compared, with the finding that their homes' socio-economic status, parental child-rearing behavior and other home factors differed. Parents of gifted achievers raised their children in a rational and democratic manner, while those of gifted underachievers tended to raise their children in an irrational and authoritarian manner. Second, discrimination analysis was conducted using home variables that showed a statistically significant difference, indicating that their homes' socio-economic status showed a low discrimination compared with their parental child-rearing behavior. Likewise, among the family factors, active involvement had the greatest effect on the underachievement of gifted children.

• Structural Engineering and Mechanics
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• 제24권3호
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• pp.291-306
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• 2006

In order to improve the constructability and meanwhile ensure excellent seismic behavior, several innovative composite connection details were conceived and studied by the authors. This paper reports experimental results and observations on seismic behavior of steel beam bolted to reinforced concrete column connections (bolted RCS or BRCS). The proposed composite connection details involve post tensioning the end plates of the steel beams to the reinforced concrete or precast concrete columns using high-strength steel rods. A rational design procedure was proposed to assure a ductile behavior of the composite structure. Strut-and-tie model analysis indicates that a bolted composite connection has a favorable stress transfer mechanism. The excellent capacity and behavior were then validated through five full-scale beam to column connection model tests.

• Structural Engineering and Mechanics
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• 제57권2호
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• pp.265-280
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• 2016

A NLFE model was proposed to investigate the mechanical behavior of short columns, cast using plain or fibrous lightweight aggregate concrete (LWAC), and subjected to elevated temperatures of up to $700^{\circ}C$. The model was validated, before its predictions were extended to study the effect of other variables, not studied experimentally. The three-dimensional NLFE model was developed using ANSYS software and involved rational simulation of thermal mechanical behavior of plain and fibrous LWAC as well as longitudinal and lateral steel reinforcement. The prediction from the NLFE model of columns' mechanical behavior, as represented by the stress-strain diagram and its characteristics, compared well with the experimental results. The predictions of the proposed models, considering wide range of lateral reinforcement ratios, confirmed the behaviors observed experimentally and stipulated the importance of steel confinement in preserving post-heating mechanical properties of plain and fibrous LWAC columns, being subjected to high temperature.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1474-1478
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• 2009

The cooperation and trust among the project participants play a critical role in the success or failure of any delivery system in construction industry. But it is very difficult to establish trust between an owner and a contractor when rational people only pursue only their own material self-interest. Based on the principal-agent theory, this paper will introduce the altruistic behavior into the traditional principal-agent model, and model the reciprocal behavior between the owner and contractor. We will show that both the owner and the contractor benefit from their reciprocal behavior, and hence trust establishing between them is possible. More importantly, we will proof that the higher the project uncertainty is, the more important trust establishing is.

• 대한가정학회지
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• 제42권9호
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• pp.85-97
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• 2004

The effect of consumers' environmental conservation behavior on the purchase of pro-environmental and used products. This study utilized a representative, large data sample to determine consumers' environmental conservation behavior, and purchase of pro-environmental and used products. Differences in these behavioral traits were investigated by socio-demographic variables. In addition, this study investigated the effect of consumers' environmental conservation behavior on the purchase of pro-environmental and used product. The major result were as follows. First, the level of consumers' environmental conservation behavior was low, and consumers did not buy pro-environmental and used products frequently. Second, unemployed married women, consumers with very low or high level of education and high income, consumers older than 40's, and consumers living in apartments showed lower levels of environmental conservation behavior. Third, consumers who were married, dissatisfied with their environmental living conditions, or irrational were more likely to buy pro-environmental products. Men, young, and rational consumers were more likely to buy used products. On the other hand, the level of environmental behavior did not influence the purchase of pro-environmental and used products. The high level of behavior for environmental conservation did not result the purchase of pro-environmental and used products.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2001년도 춘계 학술대회논문집
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• pp.72-77
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• 2001

The computational efficiency of an shape optimization procedure is highly dependent upon the proper selection of shape representation methods and design variables. In this study, shape functions, Bezier and NURBS(non-uniform rational B-splines) curves are selected as configuration generation methods and their efficiencies on the nose shape design of high-speed air vehicles, are compared. The effects of the number of control points, weighting factors and the optimization methods when utilizing the NURBS curves, are investigated. By implementing Bezier and NURBS curves, shapes having lower drag than the optimization case utilizing the shape functions, were obtained, hence it was demonstrated that these curves have better capability in representing the configuration. Efforts will be given to improve the convergence behavior when utilizing the NURBS, hence to reduce the number of Navier-Stokes analysis calculations.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 춘계학술대회
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• pp.309-320
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• 2009

Today, Advertisement affects the daily consumption life of consumers because of the features and advantages of advertisement. In particular, and so does the TV advertisement. Therefore, customer education is required for the consumers so that they can lead a rational consumption through TV advertisement quality. In addition, with the introduction of the many new-born distribution channels, the recent market environment in apparel industry is changing, and the service and image of store types consumers can choose are increasing. The purpose of this research is to offer basic data which can help consumers to acquire necessary information and conduct rational consumption through TV advertisement. Also purchasing behavior of consumers communicate, feels of consumers about store image, TV advertisement quality of what is the attitude of the relative influence presents.

• 한국조리학회지
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• 제10권4호
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• pp.50-66
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• 2004

We defined life style as something that every members of society have in common. These social and cultural environments build up not only society group or every individual's expectation but also its own life style. In that way, these social and cultural environments leads to particular consumer behavior pattern in this food-service industry. So we regard next generation's trend which consists of rational consumers as important indicator when we make future's plan in foodservice industry. We consider smart map which needs rational and continuous consume pattern as the construction of next generation's main consumer class. Therefore, this study tried to develop of color and image marketing strategies to attract LOHAS and nomadic consumer.