• Journal of Digital Convergence
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• v.18 no.10
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• pp.443-452
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• 2020

Education using smart mobile devices has become part of current children's art education activities. Today's release of pen-equipped mobile devices and smart tablet PC's allows users to painting and coloring with digital devices. Today, art content for children is downloaded and can be educated at any time as an application. However, coloring games that give children the effect of art education are extremely rare, and the content elements in the games are similar to all games and lack the ability to express themselves. The study recognizes the importance of developing coloring game content for children's art education that can help children's coloring activities and improve creativity and imagination, and focuses on the direction and elements of developing children's coloring game content using smart mobile devices that fit digital coloring functions.

• Journal of Digital Convergence
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• v.12 no.11
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• pp.515-530
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• 2014

The purpose of this research is to examine the empirical effect of participating motives for lifelong education on the releasing of controlled inferiority, the gratification of retained desire, and voluntary resocialization. The motives for lifelong education were divided into an external viewpoint focusing on consumers' behaviors and an internal viewpoint based on activity of the ego. External motives were divided into pragmatic, entertaining, and relational motives, while internal motives were divided into self-realization, self-existence, and self-participation motives. The results show that the pragmatic motive and the self-realization motive, the entertaining motive and the self-existence motive, and the relational motive and the self-participation motive are highly related to each other. It was found that the pragmatic motive and the self-realization motive affected the lifelong education participants' release of controlled inferiority relatively stronger, the entertaining motive and the self-existence motive affected participants' gratification of retained desire relatively stronger, the relational motive and the self-participation motive affected participants' voluntary resocialization relatively stronger.

• Journal of Digital Convergence
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• v.16 no.1
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• pp.343-350
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• 2018

The purpose of this paper is to explore the characteristics of a digital culture, its negative effects, especially automatism of perception, a poetic strategy against automatism of perception and the utility of poetry including the therapeutic function of poetry. The new technologies offer us various experience, great opportunities and rosy future by freeing us from boring and laborious tasks, and difficult decisions. Through the excessive and habitual use of new technologies, we may become too dependent on machines, losing our thinking abilities, sensibility, perception and creativity. Therefore, we need poetry to recover the sensation of life and make us feel things. Reading poetry allows us to look into someone else's soul and cultivate the ability to empathize. As a healing fountain, poetry leads us to a way for a change of heart, a recovery of psychic health and universal love through perfect communion in ourselves and in society. Furthermore we need a systematic and in-depth study of digital poetry as well as traditional poetry.

• Journal of Digital Convergence
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• v.8 no.1
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• pp.93-107
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• 2010

Performance of software development is measured by two major criteria - roductivity and quality. Although the criteria is empirically tested in software engineering research, they often present with a limited way under consideration of a few factors or contexts for developers to focus on the either productivity facets or quality facets. Analyzing data on software development performance collected over a 13-year period from 20 countries, we investigated how major software development factors - development type, development platform, development technique, language type, DBMS, methodology, methodology acquisition, CASE,, summary of work effort, resource level, max team size, affect the performance of software development. The results suggest that productivity and quality of software development are affected by different factors and context: function points, line of code, extreme defects, major defects, or minor defects. This research provides the empirical evidence that the two performance criteria require for software developer to have careful attention to find the optimal balance between the two performance criteria.

• Journal of Digital Convergence
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• v.16 no.10
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• pp.545-555
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• 2018

The current study uses photovoice, a participatory and quantitative method of research, to understand the stress in the youth through the experiences of university students. The study was conducted in the order of education, data collection, data analysis for six session college students in J city. The results was largely categorized into three themes as follows. Firstly, as sub-themes of meaning of stress, there were 'Spider web that clogs the head', 'Seemingly endless passage', 'Anxiety that keeps hands fidgeting', Secondly, factors of stress, there were 'Life does not depend on the class rank', Financial hardships,' Frustrated with getting a job', 'Difficulty in time management', Thirdly, how to cope with stress, there were 'A friend you can freely talk to and laugh with', 'Grab some food and release some stress', 'Get away from daily life', Positive thinking relaxes body and spirit'. Based 0n the analyzed results, we can understand the causes and coping strategies of college students in depth, suggested the practical suggestions and limitation of college society about stress and the educational implication of utilizing photovoice.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.725-731
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• 2013

The Jews has been cited as the most influential nations in the world of politics, economy, and culture in many areas. For these reasons, the study of Jewish economic life such as child-rearing, family life, and religious life is getting expanded to various areas. In this paper, we deal with the Jews's play for the various areas. Play is the best way to see the consciousness of a certain age on learning the structure and lifestyle. Therefore, the research is described to produce serious games based on by study of Jewish play using information in the internet, researched paper. Then, the investigated play's role of technology for production of functional game plans are discussed. As a result, the Jews play: 1) the history, traditions of wisdom, tools, 2) a medium for delivering educational messages, 3) the formation of community tools emotions 4) promise to play a role as a tool for learning. The development and Release of serious games based on Jews play can lead to a positive social learning effect.

• Culinary science and hospitality research
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• v.7 no.2
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• pp.157-179
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• 2001

Today the number or Chinese tourist visiting Korea is expected by 60% more than the number of them in the last year trunks to Chinese government's new policy on opening international trip. Overriding the striking perception of the new Chinese tourism market, the pre-research on this matter is not remarkable so far. It is expected that the theoretical base on the subject should be concrete. the purpose of the article is to provide the out-and-out information including the chinese market, the change of circumstance in China. Futhermore the study is proposed to offer valuable factor evaluating Chinese tourist to choose Korean restaurant and the relational consideration of the menu between estimation and satisfaction at the restaurant during their stay in Korea. In order to achieve the purpose of this paper, it is gore ahead of the literature review including the previous research on the menu of Hotel & Restaurant The major field research is to build a frame of the paper and present the model to release my humble theory. The 1imitation of the study was to make much of the literature basis due to insufficient previous research on the issue, The study would be framed into 6parts 1ike introduction, literature review, analysis of present coalition in China, major study including exploitative research, suggestion and dissuasions & conclusion. After the exploitative research, the study was approached to make findings through the questionnaires designed to find the relationship factor between chinese tourist's evaluation and satisfaction in the Hotel and Restaurant. According to the finding, chinese tourist tend to prefer the group ranging resonable-price and Japanese dishes to other group. They also interested the certain recipe including fish and vegetable. The evaluation menu is directly related to the satisfaction of Chinese tourist and we need a substantial managerial insight on it when the menu is already designed.

• Journal of Korea Water Resources Association
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• v.35 no.1
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• pp.51-64
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• 2002

In this study, the formulation of the developed mixed-integer programming model for a multi-reservoir system including hydro-electric power generation (park et al., 2001) has been improved for multiple reservoir system operation using risk evaluation criteria. Sequential linear programming(SLP) was applied for the linearization of the hydro-electric energy term in the model. In order to allocate monthly reservoir release reasonably the value of weight for hydro-electric energy was assigned by level of power generation hour. The improved model was applied to the five reservoirs system in the Han river. And could be confirmed the availibility of new formulation appling risk evaluation criteria.

• Journal of Korean Society on Water Environment
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• v.20 no.3
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• pp.290-295
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• 2004

In this study, ozone was adopted for the reduction and stabilization of waste sludge from the municipal sewage treatment plant. The waste sludge used in the experiments was primary sludge, excess sludge and a mixture of the two. The sludge cells and flocs were disrupted by ozonation resulting in the reduction of TSS and VSS concentrations. In the case of the primary sludge with a concentration of 20 gTS/L, the TSS and VSS concentrations were reduced 28%, 33% and the TCOD concentration was reduced 20% respectively. The consumption of ozone was $0.18gO_3/gSS$. In the case of the excess sludge with a concentration of 7.5 gTS/L, the TSS and VSS concentrations were reduced 37%, 41%, and the TCOD concentration was reduced 19% respectively. The consumption of ozone was $0.33gO_3/gSS$. In the case of the mixed sludge of 9.3 gTS/L, the TSS and VSS concentrations were reduced by 45%, 53%, and the TCOD was reduced 26% respectively. The desirable consumption of ozone was $0.27gO_3/gSS$. As ozonation proceeded, the level of SCOD increased due to the release of intracellular materials. However TCOD was reduced due to mineralization resulting from the transformation of organic materials to inorganic materials.

• Journal of Digital Convergence
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• v.19 no.1
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• pp.67-75
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• 2021

Despite the increase in sales of imported vehicles in Korea, research on the sales forecast of parts logistics centers is very limited. This study aims to perform a sales prediction on bestselling goods in the automobile part logistics center. System dynamics was adopted as a methodology for the prediction method, which considered causal relationship of variables that affected the dynamic characteristics and feedback loops. The analysis results showed that the consumable sales amount of oil increased over time. As a result of conducting the MAPE, the model was assessed to be a reasonable predictive model of 31.3%. In addition, the sales of battery products increased from every October in both of actual and predicted data followed by the peak sales in December and then decrease from next February. This study has academic implications that it secured actual data of specific imported automobile part logistics center, which has not done before in previous studies and quantitatively analyzed the prediction of the quantity of released goods of future sales through system dynamics.