• The KIPS Transactions:PartB
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• v.14B no.6
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• pp.431-436
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• 2007

Magnetic Resonance Imaging(MRI) has chemical shift phenomenon between fat and water, and the phenomenon has influence on structure enclosed by fat. Strong signals emitted from fat often generate false artefact, which reflects the importance of fat suppression techniques. There have been a number of researches on fat suppression techniques, but using fat suppression method alone in MRI can cause difficultproblems in diagnosis. This paper aims to study a fat suppression method by Chemical Shift Selective saturation(CHESS). This research describes the theoretical background and the experiment on water and fat phantom with MR instruments. In the experiment, CHESS pulse was designed by utilising Matlap program, and the pulse diagram was generated for the Pre-saturation process. The experiment using water and fat phantom was applied to C-spine, L-spine and Breast, and produced successful fat suppression results. This experiment has proved that the CHESSpulse fat suppression is a very helpful technique in diagnosing medical imaging. This method is a robust and useful technique for both clinical and basic investigators..(Experiment with Chungnam national university hospital G.E 1.5T MR)

• Korean Security Journal
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• no.16
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• pp.189-208
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• 2008

The purpose of this study is to examine the relation between job-related attitudes and intention to leave. To achieve this purpose of study, it set a frame of analysis based on theoretical background about intention to leave, and examined empirically about rank and file police officers. By setting job-related attitudes(organizational commitment, job satisfaction) regarded as the antecedents of the intention to leave, this study examines the relation with intention to leave. The major results of this study are as follows: First, in the relation between job satisfaction and organizational commitment, job satisfaction(+) significantly influence on affective commitment, continuance commitment and normative commitment. Second, in the relation between job satisfaction and intention to leave, job satisfaction(-) significantly influence on intention to leave. Third, in the relation between organizational commitment and intention to leave, affective commitment(-) and continuance commitment(-) significantly influence on intention to leave. but normative commitment did not. Forth, as the result of research about if organizational commitment works as a mediating effect between job satisfaction and intention to leave or not, it works as a mediating effect between job satisfaction and intention to leave in case of affective commitment, continuance commitment and normative commitment. Based on these results, to raise the level of job-related attitudes that influences on intention to leave, and to form the positive job-related attitudes are demanded to prevent and reduce intention to leave.

• Journal of Distribution Science
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• v.13 no.1
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• pp.57-70
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• 2015

Purpose - Open source software has high utilization in most of the server market. The utilization of open source software is a global trend. Particularly, Internet infrastructure and platform software open source software development has increased rapidly. Since 2003, the Korean government has published open source software promotion policies and a supply promotion policy. The dynamism of the open source software market, the lack of relevant expertise, and the market transformation due to reasons such as changes in the relevant technology occur slowly in relation to adoption. Therefore, this study proposes an assessment model of services provided in an open source software service company. In this study, the service level of open source software companies is classified into an enterprise-level assessment area, the service level assessment area, and service area. The assessment model is developed from an on-site driven evaluation index and proposed evaluation framework; the evaluation procedures and evaluation methods are used to achieve the research objective, involving an impartial evaluation model implemented after pilot testing and validation. Research Design, data, and methodology - This study adopted an iteration development model to accommodate various requirements, and presented and validated the assessment model to address the situation of the open source software service company. Phase 1 - Theoretical background and literature review Phase 2 - Research on an evaluation index based on the open source software service company Phase 3 - Index improvement through expert validation Phase 4 - Finalizing an evaluation model reflecting additional requirements Based on the open source software adoption case study and latest technology trends, we developed an open source software service concept definition and classification of public service activities for open source software service companies. We also presented open source software service company service level measures by developing a service level factor analysis assessment. The Behavior-Structure-Evolution Evaluation Model (BSEM) proposed in this study consisted of a rating methodology for calculating the level that can be granted through the assessment and evaluation of an enterprise-level data model. An open source software service company's service comprises the service area and service domain, while the technology acceptance model comprises the service area, technical domain, technical sub-domain, and open source software name. Finally, the evaluation index comprises the evaluation group, category, and items. Results - Utilization of an open source software service level evaluation model For the development of an open source software service level evaluation model, common service providers need to standardize the quality of the service, so that surveys and expert workshops performed in open source software service companies can establish the evaluation criteria according to their qualitative differences. Conclusion - Based on this evaluation model's systematic evaluation process and monitoring, an open source software service adoption company can acquire reliable information for open source software adoption. Inducing the growth of open source software service companies will facilitate the development of the open source software industry.

• Journal of Distribution Science
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• v.8 no.2
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• pp.33-44
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• 2010

This paper is to give Korean small and medium enterprises the direction for strengthening the competitiveness through looking the problems and improvements about the government policy that domestic small and medium enterprises is essential for the growth anc development. To derive these results, the theoretical background was established through considering the existing research literature. This paper has drawn the final policy alternatives through collecting field data and analysing the practical support after meeting with executives that are operating a small business related to research purposes. In this paper in order to strengthen the competitiveness of small and medium enterprises of the government's support policy, it is critical for the financial support policy and the tax support policiest policy. The conclusions in this study are following. SMEs in Korean economic growth contribute greatly to advance industrial structure, regional balanced development, employment opportunities and to alleviate the concentration of economic power. However, there are these positive, and the negative such as the absence of entrepreneurial spirit and passive participation in society. Therefore, SMEs now should have your own a lot of effort to improve their competitiveness. In addition, government believe that SMEs directly impact on the national economy, especially the people, but they still need systematic and aggressive policy support in the future because of the lack of the result. Finally, if they try strategic approach for several issues and improvement of government's support policy that this study suggested for SMEs, the entrance toward developed countries can be through jumping of Korean economy.

• The Journal of Industrial Distribution & Business
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• v.10 no.10
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• pp.67-79
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• 2019

Purpose - The purpose of this study was to explore the model that supports the recipient country by using the ODA (Official Development Assistance) project and at the same time fits the global start-up/employment support of donor country with CSV business model. Specifically, we wanted to examine the feasibility of the project based on the existing ODA projects. Research design, data, and methodology - As the methodology, case studies and interview were conducted as well as literature studies. The case analysis is based on a press release of the entire KOICA's ODA project, which has been implemented for one year, based on 2017. After consideration, the actual results and future feasibility were analyzed. The interviews were conducted on senior Korean officials and Indian officials involved in Vietnam's ODA project. Results - As a result, some of the project cases applied and analyzed according to the model of this study were judged to be highly potential. Based on the results of this analysis, as the model derived from this study pursues, the global business model is developed under the CSV (Creating Shared Value) strategy through ODA projects to support recipient countries and global start-up/employment support of donor country. The possibility of simultaneously pursuing this model based on CSV business model was also confirmed. Conclusions - In the past, free aid agencies like KOICA focused solely on supporting recipient countries, but in terms of sustainability, they could discover the potential of supporting the global start-up/employment of the donor country using CSV business model in ODA project. In this study, we tried to find the theoretical background and potential possibilities in some ODA projects based on CSV business model. As a result of the analysis of KOICA ODA projects in 2017 and interviews, some ODA projects could be used to improve the economic development of the recipient country as well as the global start-up/employment of the donor country. Therefore, it is necessary for the ministries of the government to promote ODA projects to understand the framework that achieves these two objectives simultaneously and to promote ODA projects based on various strategic considerations.

• Journal of Korean language education
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• v.28 no.1
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• pp.79-111
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• 2017

This study is a trend analysis study that discusses the current status and directions of research methods of KAP research. The existing trend ana lysis studies dealing with research methods have problems in that the classification criteria of the studies used are rough and different from each other, rendering comparison between studies being difficult, and do not comprehensively cover research methods of diversified KAP research. Therefore, this study examined the research methods of KAP research from a critical point of view and suggested a set of classification criteria and an analysis framework that can be used consistently in classification and analysis of future KAP research methods. Based on the theoretical background of second language studies and applied linguistics, this study revised and supplemented Brown (2015)'s research method types and selected 289 journals and theses/dissertations from 2012 to 2016 and classified them into a new analysis framework. The primary and secondary studies, which are the major categories, were 219 and 70, respectively, so it was confirmed that there were much more primary studies. The primary studies then were subdivided into 128 qualitative research studies, 142 survey research studies, and 23 quantitative research studies, pointing to the trend that survey and qualitative research methods were preferred. In the qualitative research approaches, there were 21 action research studies, which were used the most. In addition, such qualitative research approaches as case studies and narrative inquiries which were difficult to find in the past, have gradually increased, confirming that the diversification of research methods is becoming common. However, there were still many studies that did not explicitly put forward research questions and there were many studies that did not report reliability and effect sizes in quantitative research. Of the 23 quantitative studies, only 50% reported reliability, and only three reported effect sizes. In order to enable systematic reviews (meta-analysis) of quantitative research and expect quality improvement of research in future KAP research, reporting of quantitative research should be done more systematically. This study is meaningful in that a systematic and detailed analysis framework was proposed to classify various research methods in the future and that the problems and directions for improvement of the KAP research methods were discussed through the analysis of the research trend of the KAP studies for the last 5 years.

• Korean Journal of Social Welfare Studies
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• v.44 no.3
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• pp.57-83
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• 2013

There has neither been enough research on how to approach the concept of active aging through an integrated view nor an examination to verify the relationship between preparation for old age and active aging in later life. Therefore, this research aims to verify that the elderly, who have prepared for their later life, affected their active aged life. In addition, by setting up self-efficacy and social support as mediator in the research model, this paper looks into the psycho-social resource mechanism of the relationship in depth. In order to verify the correlation of two variables, the Seoul welfare panel data, a mediating model structured by psycho-social resources created by Seoul welfare foundation in 2010, was used. The total sample size was a group of 1,492 elders aged over 65. When it came to our research methods, structured equation analysis was applied to verify the mediating effect and theoretical background. The results revealed that physical preparation, financial preparation, social preparation and leisure preparation directly affected their active aging level positively, thus, psycho-social resources showed a partial mediating effect between preparation for old age of the past and active aging level. The research implications are as follows. First, this research makes an effort to approach the concept of preparation for old age with an integrated perspective through making a construct by entire preparation types. Second, it will attempt to verify the relationship between preparation for old age in the past and active aging in terms of multi-dimension is meaningful. Third, this research reveals the function of psycho-social resource, self-efficacy and social support within the relationship. As far as the partial mediating effect is concerned, preparation for old age education for the middle-aged class should be modified as a decent field to enhance of the elderly.

• Korean Journal of Social Welfare Studies
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• no.37
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• pp.117-144
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• 2008

This is a timeseries study on the riving forces behind the changes of Korean welfare state. There are a few previous studies on the determinants of korean welfare state. These previous studies have some limitations in terms of reliability of the data source and validity of the statistical method used. Using the Comparative Social Policy Data-set(CSPD), we try to overcome the limitation of these previous studies. And adapting the time series regression, we examine the hypotheses about the changes of korean welfare state. In this study, four dependent variables are examined: the ratio of public social welfare expenditure to the GDP(WELGDP), the ratio of public social welfare expenditure to the government budget(WELGOV), the ratio of social expenditure to the GDP(SOCX), social welfare expenditure per capita. And independent variables were selected based on the theoretical background on the changes of welfare state. The results of this study as follows: First, the variables based on structural functionalism (industrialization) are the major driving forces behind the changes of korean welfare state since 1960s. Second, the effect of unemployment variable may be reasonably interpreted as reflecting the residual characteristics of korean welfare state. Third, the politics of the left based on power resource theory should be restrictedly interpreted. Ultimately, korean welfare state is still at rudimentary stage where the theory of industrialization is well applied as a driving forces behind the changes of welfare state.

• Journal of Korea Port Economic Association
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• v.32 no.1
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• pp.151-163
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• 2016

This research analyzes the effect of the competitive edge in Information Communication Technology (ICT) on supply chain integration in business processes through a comparative analysis by industry that suggests a way of achieving competitive edge in ICT for effective supply chain integration. Based on the theoretical background, there are two research hypotheses. The first hypothesis is about the effect of a competitive edge in ICT on the supply chain. The second is that the effect of the competitive edge on supply chain integration varies from industry to industry. ICT infrastructure must be acquired in advance in order to attain a competitive edge in ICT to secure corporate competitiveness. Building a competitive edge in ICT itself by methods such as introduction, integration, and application, can directly improve company results. Therefore, it must be utilized strategically for improvement in standards of supply chain integration like information integration, organization integration, and strategy integration. If supply chain integration is accomplished effectively by gaining competitive edge in ICT, company results can be improved. By analyzing the effect of a company's competitive edge in ICT on supply chain integration, and comparing differences in features of each category of businesses, measures for developing a competitive edge in ICT and therefore supply chain integration are presented.

• Journal of Digital Convergence
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• v.19 no.10
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• pp.175-188
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• 2021

In this study, we are going to study the OTT service platform, which is growing rapidly in recent years. Through this study, the characteristics of the platform preferred by consumers and the relationship between psychological benefits and loyalty were investigated. In addition, the relationship between the type of family and the characteristics of the platform and psychological benefits was investigated. In this study, a total of 255 surveys were conducted targeting consumers who have used OTT services, and 206 cases were analyzed with SPSS 18 and AMOS 21, excluding 49 cases that were insincere or inconsistent internally. According to the results of the study, all factors of convenience, AI recommendation service, and content, which are factors characteristic of OTT platform, had a significant effect on psychological benefits. In addition, psychological benefits were found to have a significant effect on brand loyalty. It was found that there was no difference between the characteristics of the OTT platform and the type of family according to the family type, which is a control variable. This study is significant in providing a theoretical background according to the type of family. Future studies are expected to consider various members or add factors to the study.