• The Korean Journal of Community Living Science
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• v.25 no.3
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• pp.289-301
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• 2014

Recent years have witnessed an increasing number of alternative school students in Korea. However, few studies have empirically examined these students' school adjustment and peer relationship skills. To address this gap in the literature, this study examines the effects of individual characteristics, family characteristics and peer relationship skills on these students' school adjustment. Four aspects of school adjustment were measured as dependent variables. These four aspects included peer relationship adjustment, relationships with teachers, school environment adjustment, and schoolwork attitude adjustment. The peer relationship skills included three components, namely initiative, mutual closeness, and order awareness. Data were collected from 323 alternative middle and high school students through a structured questionnaire. The statistical analysis methods included descriptive statistics and a hierarchical regression analysis using SPSS WIN 19.0. According to the results, peer relationship skills as well as family background characteristics, including the age of the father, the education level of the father, the family economic level, and the number of close family members, had significant effects on school adjustment. The results highlight the importance of peer relationship skills for these students' successful school adjustment and have important policy and theoretical implications.

• Korean Journal of Childcare and Education
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• v.12 no.3
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• pp.79-97
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• 2016

The purpose of this study was to investigate the effects of children's multiple intelligences and temperaments on their play behaviors. In order to achieve this, 155 mothers and 21 teachers of children aged 4 to 6 years old were invited to participate in an observe-reported survey. The data were analyzed using descriptive statistics, Cronbach's ${\alpha}$, Pearson's correlation, and hierarchical regression analysis using SPSS version 18.0. It was found that both multiple intelligences and temperament types have partial influences on play behaviors of young children; it was confirmed that among multiple intelligences of children, logical-mathematical intelligence influences onlooker behaviors in a positive way, body-kinesthetic intelligence has a positive effect on rough-and-tumble play, and musical intelligence positively affects social play during free-choice play. Also, children with a difficult temperament were more likely to participate in solitary play than children with a slow temperament. These results imply that teachers' guidance and involvement of children's play should differ by types of temperament and levels of multiple intelligence in children.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.36C no.11
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• pp.84-91
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• 1999

In this paper, we could analyze the comparison with applied WFM to the quantization triangularity fuzzy function and triangularity Fuzzy function. In order to improve on a fault which not remove completely noise included image according to a peculiarity of noise, we got to realize FDNN of the high speed weight eliminating noise included image, minimizing the lost of information, obtaining information of suitability owing to applied Fuzzy Algorithm to DBNN of a hierarchical structure. We could analyze the comparison with a power of WFM and FDNN using simulation We could find to superiority the proposed FDNN )n a result which was the comparison of MSE for the boats image.

• Journal of the Korea Safety Management & Science
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• v.16 no.3
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• pp.219-229
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• 2014

Employees used computer significantly(IT employee) is increased by technological development in workplace. This study tried to find the magnitude of IT employees and the profile of their working conditions and ill health experiences in South Korea. Korean Working Conditions Survey was used with descriptive and mean difference test in order to find the difference working conditions and ill health status among the groups classified by the degree of using computer during work. Some of working conditions was positively correlated with the density of computer use such as work autonomy, the exposure of repetitive movement of hand and arms. The pain of upper extreme was also more frequently found in the highest user group of computer than lower user groups. Based on the result of hierarchical regression analysis, the effect of computer using on the experience of work-related symptoms after controlling other factors was shown as U shape. This study as heuristic one suggest that some of depth analysis with hypothesis will be done to identify the causes and pathway of impact of computer use.

• Journal of the Korea Safety Management & Science
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• v.16 no.1
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• pp.239-250
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• 2014

The purpose of this research is to implement and develop the Economic Cost Driver Size(ECDS) extended model to determine the optimal cash driver size with measurement complexity cost and allocation fail cost. ECDS model can be used to seek both measurement accuracy and time efficiency of the Activity-Base Costing (ABC). The study also develops Activity Priority Number (APN) to evaluate the importance of nonvalue-added activities improvement and to determine the representative cost driver of value-added activities when applying ECDS model. APN consists of Severity Priority Number (SPN), Undetectablitiy Priority Number (UPN) and Occurrence Priority Number (OPN). APN can be obtained from lower-stream activity, current activity, upper-stream activity in terms of hierarchical dependency of SIPOC (Supplier, Input, Process, Output, and Customer). In order to seek both efficiency of invested capital and reduction of overhead cost, the paper proposes the integrated ABC and Economic Value Added (EVA) model using redesigned ABC-based statement of comprehensive income and EVA-based statement of financial position. For a better understanding of the proposed ABC-EVA integrated model, numerical examples are demonstrated in this paper. Cost drivers of ABC and capital drivers of EVA in the proposed model can be used to reduce activity overhead cost from ABC-based statement of comprehensive income and to lessen activity capital charge from EVA-based statement of financial position.

• East Asian Journal of Business Economics (EAJBE)
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• v.7 no.1
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• pp.39-49
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• 2019

Purpose - The major aim of this article is to advance understanding of the relationship between market orientation and speed-to-market. Specifically, this study examines the different impacts of component of market orientation on commitment to R&D and speed-to-market and explores whether market uncertainty plays a role of moderating in speed-to-market for market-oriented firms. Research design, data, and methodology - This study collected a survey data from Korean exporting firms. The Final sample size was 196. The measure of market orientation was conceptualized with second order constructs. All items were measured on five-point scale. To confirm hypotheses, this study conducted a hierarchical regression. Results - As sub-constructs of market orientation, customer orientation, competitor orientation and interfunctional coordination foster speed-to-market, and the relationship between only customer orientation and speed-to-market might be weakened when the extent of market uncertainty is high. Conclusions - This study confirmed the relationship between market orientation and speed-to-market, with three components of market orientation respectively, and whether market uncertainty plays a role of moderating which weaken the link between market orientation and speed-to-market. It could be useful to take a component approach to the market orientation construct, because the roles of different market orientation components might vary, contingent on uncertainty in the environment.

• Proceedings of the Korea Society for Simulation Conference
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• 2002.11a
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• pp.101-105
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• 2002

In a traditional hierarchical inventory system, direct orders are the only information for inventory management that is exchanged between the firms involved. But due to the rapid development of modern information technology, it becomes possible for the firms to share more information in real time, e.g. demand and inventory status data. And so the term Supply Chain has emerged because it is seen as an important source of competitive advantage. Now it is possible to challenge traditional approaches to inventory management. In the past, one of the de-facto assumptions for inventory management was that the demand pattern follows a specific distribution function. However, it is undesirable to apply this assumption in real situations because the demand information in the supply chain tends to be distorted due to the bullwhip effect in a supply chain. To overcome this weakness, we propose a new solution method using NN (Neural Network). Our method proceeds in three steps. First, we find the patterns of optimal reorder points by analyzing past data. Second. train the NN using these pattern data and finally decide the reorder point. Using simulation experiment, we show that the proposed solution method gives better result than that of traditional research.

• The Korean Journal of Applied Statistics
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• v.18 no.3
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• pp.555-565
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• 2005

To Know customers is very important for the company to survive in its cut-throat competition among coimpetitors. Companies need to manage the relationship with each ana every customer, ant make each of customers as profitable as possible. CRM (Customer relationship management) has emerged as a key solution for managing the profitable relationship. In order to achieve successful CRM customer segmentation is a essential component. Clustering as a data mining technique is very useful to build data-driven segmentation. This paper is concerned with building proper customer segmentation with introducing a credit card company case. Customer segmentation was built based only on transaction data which cattle from customer's activities. Two-step clustering approach which consists of k-means clustering and agglomerative clustering was applied for building a customer segmentation.

• Korean Journal of Social Welfare
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• v.48
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• pp.271-301
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• 2002

This paper is to provide the legitimacy of the recruit system of professional social welfare workers in public sector with government by analyzing the evaluation results of the supervisors. In order to evaluate the public welfare workers recruit system, 500 supervisors are selected randomly from the universe of 2,880 supervisors working in the public welfare field. They are not a professional social worker, but an administrative supervisor in hierarchical structure. Among them 302 supervisors give their views on the recruit system, social welfare workers' job achievement, job attitude, ability, and professional values. They assess the workers' job achievement very positively, which are affected by job attitude, ability, and professional values. They agree that it is very valuable to exist the recruit system of professional social welfare workers in public sector, because it has contributed to increasing the workers' job achievement level in the public welfare field. This study concludes that it is successful to adopt the recruit system of social welfare workers in public sector, and suggests that the system be developed further in public welfare field. Besides, this paper insists that professional public welfare workers recognize that they are one of the members of the organization and they work together with administrative staffs.

• Korean Journal of Social Welfare
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• v.46
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• pp.118-144
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• 2001

To examine association between psychological characteristics of Adult-Children of Alcoholics and psychosocial Problems was a purpose of this study. The data were collected on a written questionaire completed 765 adolescents who were consisted of children of alcoholic and nonalcoholic parents. Parental alcoholism was established using CAST and psychosocial problems were assessed by Youth Self Report. Psychological characteristics of ACOA were identified by Adult Children of Alcoholics Screening Test. This study showed that children of alcoholics possess distinct psychological characteristics and they have experienced a variety of psychosocial problems. Hierarchical regression analysis was conducted in order to determine the extent to which characteristics of ACOA affected on psychosocial problems. As a results, psychological characteristics of ACOA were significantly associated with them after controlling for the correlates of family structure, level of family functioning, and parental alcoholism. In addition, two group of ACOA were created on the basis of scores of ACAST. High-risk group had significantly higher YSR scores than low-risk group and it revealed that clinical intervention was needed for many adolescents in high-risk group. The results underscored the importance of ACOA syndrome in adaptation of children with alcoholic parents and suggested the need of future research focusing on development process of subtypes of ACOA.