• Korean journal of communication and information
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• v.67
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• pp.7-34
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• 2014

This study analyzes the characteristics, implications, and problems of Social Network of Press Organizations from the Kim Dae-jung administration to the Lee Myung-bak administration in Korea. For analyzing these issues, this study attempts to investigate the traits of social network structure based on the density analysis, distribution character analysis and correspondence analysis in each and among regimes. To answer these questions, this study utilizes human relationship data which related to personal network aspects (place of birth, affiliated college) and expertise aspects (types of major field), and which data has been gathered from the biographical web-site of Press Organizations in Korea. The results showed that the membership format of each Press Organizations depends on the connection with political environment directly and indirectly. Especially, the network traits of Broadcasting Press Organizations stands out a place of birth aspect. This findings indicate that the broadcasting policy reality that the path of decision making is connected with the political environment is more effective.

• Journal of the Economic Geographical Society of Korea
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• v.19 no.3
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• pp.566-582
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• 2016

This study aims to analyze knowledge extension and diffusion trend among industries through technological convergence in non-Capital rural areas. A case of Sunchang, Korea examines knowledge extension trend of fermented soy product manufacturing industry. Patent application data are used to make technology convergence analysis and knowledge network analysis. Patent analysis results show that there are differences of knowledge extension trend between the whole country and Sunchang. Technologies of fermented soy product manufacturing in Sunchang is inclined to extend toward technologies related to fermented microorganism. Contrary to the whole country, knowledge extension in rural area like Sunchang is converged to technologies suitable for specialized but limited regional assets and human resources. Core actors of knowledge network of fermented soy product manufacturing in Sunchang are mainly public organizations such as local government, universities, and agencies or institutes. Recently technology sharing and extension is likely to occur through the cooperation between associative corporations and public organizations.

• Knowledge Management Research
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• v.21 no.1
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• pp.175-195
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• 2020

The development of platform service based on the information and communication technology has revolutionized patterns of commercial transactions, driving the growth of global economy. Furthermore, the radical advancement of artificial intelligence(AI) presents the huge potential to innovate almost all the industrial and economic activities. Given these technological developments, the goal of this paper is to investigate AI's impact on the platform service innovation as well as its influence on the business performance. For the goal, this paper presents the review of the types of service innovation, the nature of platform services, and technological characteristics of leading AI technologies, such as chatbot and recommendation system. As an empirical study, this paper performs a multiple case study of Kakao Group which is the leading mobile platform service with the most advanced AI in Korea. To understand the role and effect of AI on Kakao platform service, this study investigated three cases, including chatbot agent of Kakao Bank, Smart Call service of Kakao Taxi, and music recommendation system of Kakao Mellon. The analysis results of the case study show that AI initiated innovations in platform service concepts, service delivery, and customer interface, all of which lead to a significant decrease in the transaction costs and the personalization of services. Finally, for the successful development of AI, this research emphasizes the significance of the accumulation of customer and operational data, the AI human capital, and the design of R&D organization.

• Journal of radiological science and technology
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• v.41 no.4
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• pp.339-344
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• 2018

Humans received an exposure dose of 2.4 mSv of natural radiation per year, of which the contribution of spacecraft accounts for about 75%. The crew of the aircraft has increased radiation exposure doses based on cosmic radiation safety management regulations There is no reference to air passengers. Therefore, in this study, we measured the radiation exposure dose received in the sky at high altitude during flight, and tried to compare the radiation exposure dose received by ordinary people during flight. We selected 20 sample specimens, including major tourist spots and the capital by continent with direct flights from Incheon International Airport. Using the CARI-6/6M model and the NAIRAS model, which are cosmic radiation prediction models provided at the National Radio Research Institute, we measured the cosmic radiation exposure dose by the selected flight and departure/arrival place. In the case of exposure dose, Beijing was the lowest at $2.87{\mu}Sv$ (NAIRAS) and $2.05{\mu}Sv$ (CARI - 6/6M), New York had the highest at $146.45{\mu}Sv$ (NAIRAS) and $79.42{\mu}Sv$ (CARI - 6/6M). We found that the route using Arctic routes at the same time and distance will receive more exposure dose than other paths. While the dose of cosmic radiation to be received during flight does not have a decisive influence on the human body, because of the greater risk of stochastic effects in the case of frequent flights and in children with high radiation sensitivity Institutional regulation should be prepared for this.

• Journal of Labour Economics
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• v.29 no.1
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• pp.75-98
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• 2006

This study shows a theoretical model, based on transaction cost theory, for the choice of alternative work arrangement, Suppose that standard labor contract (permanent and full-time) is a typical labor contract of within-organization transaction and alternative labor contracts of variety are in the spectrum between market and within-organization transaction, the type and size of the market transaction cost for a specific labor would determine the appropriate labor contract. Firm-specificity and level of skill, scope and uncertainty of tasks, and duration of contract are the major determinants of transaction cost which, in turn, determines the type of labor contract. This theoretical model implies that there will be occupational segregation between standard and alternative work arrangements and that the legal regulations for protecting employment and wage of non-standard workers might not be so effective as expected.

• Journal of Chest Surgery
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• v.49 no.sup1
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• pp.1-13
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• 2016

Background: The purpose of this study was to investigate longitudinal changes of the utilization of operational and surgical medical care inside and outside a metropolitan area over 10 years, analyzing the residential areas of patients and the locations of medical facilities for major cardiovascular surgery. Methods: Data analysis was conducted by classifying the addresses of patients and the locations of medical care facilities of metropolitan cities and provinces, using data from the National Health Insurance Corporation from January 2003 to December 2013. Results: There is serious concentration of major heart surgery to medical facilities in Seoul; this problem has not improved over time. There were differences in percentages of surgical procedures performed in the metropolitan areas according to major diseases. In the case of Busan and Daegu provinces, at least 50% of the patients underwent surgery in medical facilities in the city, but there are other regions where the percentage is less than 50%. In the case of provinces, the percentage of surgical procedures performed in medical facilities in Seoul or nearby metropolitan cities is very high. Conclusion: Policies to strengthen the regional capabilities of heart surgery and to secure human resources are required to mitigate the concentration of patients in the capital area. Many regional multi-centers must be designated to minimize unnecessary competition among regional university hospitals and activate a win-win partnership model for medical services.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.974-985
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• 2013

This research aimed to propose policy alternatives on acquisition and retention of SME's R&D personnel through the analysis of the status and problems of SME's R&D personnel. As research methods, literature review, survey analysis, domestic and foreign R&D personnel support system and practices benchmarking, human capital corporate panel (HCCP) and integrated survey DB material analysis, and case investigation by interview were used. The occupational status and problems of SME R&D personnel concerned on the corporate size, HRM practices on satisfaction and HRD problems, talent personnel management and training system status, the core talent management system and R&D personnel management system, and its complaints were organized. As conclusion, we have proposed alternatives on acquisition and retention of R&D personnel focused on the talent management. Suggestions were such as supports on R&D personnel management system and its dissemination, systematic career development programs, and excellency promotion on SME's and R&D talent personnel.

• The Journal of the Korea Contents Association
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• v.17 no.4
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• pp.83-94
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• 2017

This study aimed to provide important information on vocational education and employment policy for the disabled by analyzing the relationship between disabled wage workers' occupational ability and job quality. For this purpose, the relationship between job competence and employment quality was theoretically examined and empirically analyzed based on human capital theory, screening theory, and job competition theory. The empirical analysis used data on 975 disabled wage workers with the use of the data of the 8th Panel Survey of Employment for the Disabled(2015). As a result of the empirical study, it was found that the occupational ability of the disabled workers is an important factor in determining Wage, job status, job satisfaction, which constitute the quality of employment. This result indicates that job quality can be improved by ameliorating disabled people's occupational ability. Accordingly, this study proposed that there might be a need to extend customized education and educational facilities for improving disabled people's occupational ability.

• Journal of Labour Economics
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• v.27 no.3
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• pp.75-111
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• 2004

On the basis of data from the National Longitudinal Survey of Youth (NLSY), this paper investigates wage consequences of cumulative experience of job displacement. Unlike previous studies, we consider two measures of cumulative unemployment experience simultaneously: the total frequency and the cumulative duration of unemployment induced by job displacement. When frequency and cumulative duration compete in a wage equation, only cumulative duration remains significant for men, while only frequency matters for women. For men, a one-month increase in the cumulative duration of displacement-initiated unemployment leads to a fall in wages by 0.4 percent. This finding is quite robust with respect to various sample restrictions and/or estimation methods. For women, approximately a 2.5 percent wage reduction is associated with an additional event of displacement.

• The Journal of the Korea Contents Association
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• v.13 no.6
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• pp.227-235
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• 2013

This study aimed to establishing a support policy for enhancing corporate's competitiveness by analysing the resources linkage status of social enterprise. 67 Social enterprises In Chung-nam area were surveyed. The results are as follows. Social enterprise didn't link with community agencies in area of the capital, product and services outlets, technology development, human resources, infrastructure and education. And social enterprises is linking external resources with public agencies actively in the area of management, PR and marketing. But most social enterprises are operating without the linkage of community organizations. In the future, social enterprises need the network of public, corporate, and private organizations in the community by strengthening the role of the intermediate support organizations.