• Proceedings of the Korean Professional Engineer Association Conference
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• 1992.12a
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• pp.129-132
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• 1992

Economic development is the common problem for Northeast Asian Countries, even if their political regimes are defferent. What we based on the economic development are infrastructure and regional development. As a matter of course, they have to be accompanied with science and technology. In the Japan Sea(the Eastern Sea) Rim, it is expected that a regional development zone based on the idea of a “borderless world” will be established. Moreover science and technology as well as capital are also expected to be invested in that 3one. That is to say, the regional development Bone needs Japanese and Korea capital, science and technology.

• Journal of Digital Convergence
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• v.17 no.5
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• pp.319-326
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• 2019

This study was examined the influences of life stress on the aggression of college students. For this purpose 262 college students in Daegu completed the related study. Data were collected from September 5 to September 7, 2017. Collected data were analyzed using IBM SPSS 25.0. The major findings were as follow; 1) The life stress of the subject was the highest in study problem. 2) There were significant differences in aggression according to gender(t=4.43, p<.001) and major(F=13.66, p<.001). 3) The aggression was positively correlated with interpersonal problem(r=.49, p<.001), study problem(r=.34, p<.001), economic problem(r=.34, p<.001), future problem(r=.35, p<.001) and value problem(r=.31, p<.001). 4) The factors affecting to aggression were interpersonal problem, science and engineering, and study problem, and these factors accounted for 30% of aggression. Through this study, it was possible to grasp the degree of life stress and the influencing factors of aggression of college students. And the significance of this study is to suggest the direction of program for the management of aggression of college students.

• Child Health Nursing Research
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• v.6 no.3
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• pp.362-371
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• 2000

The purpose of this study was to examine the stressors, coping styles, communication with mother, school adaptation and predictors for school adaptation. The subjects of this study consisted of 354 children. They were 6th grade of elementary school in Taegu city. The periods of study was from march 10, to march 18, 2000. Data were analyzed by SAS computer programme. The results of this study were as follows: 1. The mean score for stressor was 39.91 in children(range 24-72). The higher stressor among three subgroups of stressor was mass media stressor. The degree of stressor revealed to be influenced significantly economic status. 2. The most frequently used coping style was problem-oriented coping style(M=18.94) in children. The degree of emotion-oriented coping style revealed to be influenced significantly family's atmosphere 3. The mean score for communication with mother was 72,44 in children(range 20- 100). The degree of communication with mother revealed to be influenced significantly sex, economic status, family' atmosphere. 4. The mean score for school adaptation was 62.48 in children(range 25-100). The higher school adaptation among five subgroup was rule dimension. The degree of school adaptation revealed to be influenced significantly sex, birth, mother's job, economic status, family's atmosphere. 5. School adaptation were positively correlated with communication with mother, problem- oriented coping style(r=0.40 p<0.001) (r=0.30 p<0.001). 6. School adaptation were negatively correlated with emotion-oriented coping style, stressor (r=-0.16 p<0.01)(r=-0.13 p<0.01). 7. Forward multiple regression analysis revealed that the most powerful predictor was the variable communication with mother accounted for 15.25% in school adaptation. All variables accounted for 25.55% in school adaptation. From the above results, it can be concluded that teaching mother about importance of communication, encouraging to use problem-oriented coping style is necessary to improve school adaptation in 6th grade elementary school children

• Proceedings of the KIEE Conference
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• 1995.11a
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• pp.113-116
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• 1995

In this study, we formulate production costing problem with environmental and operational constraints into an optimization problem of LP form. In the process of formulation, auxiliary constraints on which reflect unit loading order are constructed to reduce the size of optimization problem by economic operation rules. As a solution of the optimization problem in LP form, we use Karmarkar's method which performs much faster than simplex method in solving large scale LP problem. The proposed production costing algorithm is applied to IEEE Reliability Test System, and performs production simulation under environmental and operational constraints. Test and computer results are given to show the accuracy and usefulness of the proposed algorithm in the field of power system planning.

• Hwankyungkyoyuk
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• v.19 no.1 s.29
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• pp.116-127
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• 2006

An environmental problem is the important issue of mankind. It should be treated main discourse in our period. There are many assertions related to environment but they are not to be clearly classified because of miscellaneous paradigm. It is possible to classify into two category on the basis of human attitude toward nature and environmental problem. One of them is technocentrism and the other is ecocentrism. This classification is helpful to understand various environmental discourses. Owing to different paradigm approach, technocentrism and ecocentrism have different concept for environmental problem. Environmental problem has relation to logic behind economics. Technocentrism is powerful to the real life in behalf of economic rationalism. So they have a striking contrast. This study made clear the differences between technoentrism and ecocentrism. But ecocentrism is important for the only settlement of environmental problem in ecocentric perspectives.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.54 no.12
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• pp.597-602
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• 2005

The introduction of competition in electricity market emphasizes the importance of sufficient transmission capacities to guarantee various electricity transactions. Therefore, when dispatch scheduling, transmission security constraints should be considered for the economic and stable electric power system operation. In this paper, we propose an optimal dispatch scheduling algorithm incorporating transmission security constraints. For solving these constraints, the dispatch scheduling problem is decomposed into a master problem to calculate a general optimal power flow (OPF) without transmission security constraints and several subproblems to inspect the feasibility of OPF solution under various transmission line contingencies. If a dispatch schedule given by the master problem violates transmission security constraints, then an additional constraint is imposed to the master problem. Through these iteration processes between the master problem and subproblems, an optimal dispatch schedule reflecting the post-contingency rescheduling is derived. Moreover, since interruptible loads can positively participate as generators in the competitive electricity market, we consider these interruptible loads active control variables. Numerical example demonstrates efficiency of the proposed algorithm.

• Journal of Korean Institute of Industrial Engineers
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• v.37 no.3
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• pp.171-179
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• 2011

In this paper, we deal with the vehicle routing problem that could establish operational plan of military engineer for survivability support of artillery position construction. We propose VRPTW(vehicle routing problem with time-window) model of special form that considered service level to reflect the characteristics of military operations rather than the logic of economic efficiencies in the objective function. Furthermore we suggest modified particle swarm optimization algorithm for service based vehicle routing problem solution that can be possible to search in complicated and uncertain area and control relation softly between global and local search.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.11
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• pp.1077-1085
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• 2020

This research is a literacy study regarding the implementation and management of the economic role of haria as a new strategy in overcoming the problem of the global financial crisis that has hit the middle of the COVID-19 pandemic. The research method comes from previous studies to compare the capitalist, socialist, and sharia economic systems. In response to various economic uncertainties, both internal and external, the ability to seize opportunities and transform has become the key to economic resilience. Islamic economics can be an alternative in responding to the dynamics of the global and national economy. Several things need to be taken into consideration in fulfilling the sharia economy and the primary strategy chosen must come from the inputs given by the stakeholders, including business actors, associations, regulators as well as experts, and academicians. The primary strategy in implementing the sharia economy also requires the support of various parties in order to develop sustainability. Strengthening regulation and governance is one of the fundamental factors. Optimization of the sharia economy based social sector such as Zakat, Infaq, Sadaqah, and Waqaf can be optimized both for collection and distribution so that the concept of sharing can certainly support the development and the economy both nationally and globally.

• Analyses & Alternatives
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• v.7 no.3
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• pp.145-179
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• 2023

This study empirically examines the relationship between the education and competence, age and competence, and the returns to skills in the labor market in different countries using PIAAC data. The main focus is notable characteristics of Korea compared to other PIAAC participant countries. Contrary to young students who have highest scores in international tests, Korean adults made mediocre performances in all three areas, numeracy, literacy, and problem solving. It turns out that the correlation between educational level and competence is weak in Korea compared to other countries, whereas the depreciation of competence from aging is strongest. In terms of labor market returns, literacy skills get highest returns while problem-solving skills get lowest in Korea. In contrast, the numeracy skills get highest returns, and the problem-solving skills have high returns than those of Korea in many other countries When we include three skills in the Mincer wage equation, the returns to problem solving skills have negative effect in Korea, which is rarely found in other countries. These results implies that problem-solving skills are not much appreciated in the Korean labor market and Korean adults have few opportunities of accumulating human capital after finishing formal education. Korean need to rethink the ways to accumulate human capital and enhance economic performances to overcome high deprecation in human capital after formal education and to make the labor market more efficient in a sense that adults' competence results in the due economic returns.

• Korean Journal of Social Welfare
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• v.57 no.3
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• pp.133-164
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• 2005

This study examined the effects of children's perceived stress of economic strain, resulting family conflict, and stress coping strategies on their adjustment. Dimensions of children's adjustment studied in this research were problem behaviors (aggression, delinquency, withdrawal and anxiety depression) and school adjustment. Interaction effects between children's stress variables and coping strategies on the adjustment were also explored. 1,115 fifth to eighth graders from Chungbuk regions participated in self-administered structured questionnaires. Data were processed with SPSS PC 10.0 statistical package. Results were: First, the level of children's problem behaviors and school adjustment indicated differences according to their academic achievement, gender, and their age. Middle schoolers with rather low grade average reported higher level of aggression, delinquency, withdrawal and that of depression/anxiety. Boys tended to be more prone to external problems while girls to internal problems. Second, stresses originated from children's perceived economic strain and family conflicts showed consistent meaningful explanatory power on adjustment. Boys' adjustment was influenced by stress from economic strain and family conflict while girls by family conflict and academic achievements. The support seeking coping strategy among others was the most popularly employed coping strategy of children followed by aggressive coping strategy. In boys' cases, interaction effects of stress and coping strategies were significant in all of the adjustment variables, the more frequent the use of support seeking coping strategies, the lower the problem behavior, while interaction effect of family conflict stress and support seeking coping strategies played the opposite significant role in girls' cases. Further research efforts are required. Research results suggest; when developing a program facilitating children's adjustment, training on stress coping strategies should be considered as a potent new arena of interest.