• Journal of Yeungnam Medical Science
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• v.11 no.2
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• pp.323-331
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• 1994

1,050 patients who visited orthodontic dental department from 1983 to 1994, were surveyed on the yearly tendency of orthodontic patient distribution and state by means of Angle's classification. The results were as follows: 1. There was increased visiting rate of patient per year and higher visiting rate in female than in male. 2. 8-15 age group was 61.4% in total visiting patients and over 20 age group was 18.5%, under 7 age group was 8.1% 3. Class I malocclusion was 42.2%, class II div 1 was 22.5%, class II-2 was 3.9%, class III was 29.1% and cleft lip & palate was 2.0% in total visiting patient. 4. As showed the living distribution, Namgu and Susunggu's patients were 43.7% of the total patients. 5. There was increased tendency for the number of the patient to be recieved orthognathic surgery.

• Journal of Advanced Navigation Technology
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• v.20 no.6
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• pp.511-518
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• 2016

RAPCON non only controls landing/take-off procedures but also approaching air traffics within 60-70 NM range of air force base. This paper, first of all, tries to research the failure rate per operation hours, mean time between failure (MTBF) of RAPCON according to six blocks such as interrogator, receiver, power unit, display unit, data process unit and antenna. In addition, this paper estimates the maintenance cost over next 10 months based on 50 monthly maintenance cost data. Considering the maintenance cost data from RAPCON which has been used over designed service life span, it is no doubt the forecasted data proved the monthly cost would go up incrementally during the rest of economic life of the facility. Such research result is also proven to be the same with the result of bathtub curve data during operating life.

• Journal of Information Technology and Architecture
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• v.11 no.1
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• pp.99-111
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• 2014

Today, through developing country's Official Development Assistance (ODA) project, Republic of Korea is giving help in establishing communication networks, furnishing PCs and etc, as a help of information base expansion. And to resolve digital divide between countries, Republic of Korea's IT service group dispatch business has also significantly contributed to enhance information application level of developing countries. The conclusion and suggestion of this study is as follow. It is obvious that utilization of information can be affected by capability improvement of developing country's informatization level. However, developing informatization strategy level and environment in long term wise will cause greater influence than to raise immediate informatization base level. Overall, settlement of long term digital divide seems possible when we elevate developing countries' informatization strategy level and environment.

• Journal of Digital Convergence
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• v.16 no.3
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• pp.13-25
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• 2018

Using data from the 2014 Survey on Internet Addiction performed by the National Information Society Agency, this study aimed to examine the influences of closeness with parents and awareness of Internet policies on Internet Addiction among adolescents in multicultural families in South Korea. Descriptive analyses showed that multicultural adolescents had on average 2.09 points on the whole scale of 15 items, but had on average 2.20 points on the sub-scale of withdrawal symptoms and on average 2.18 points on the sub-scale of tolerance symptoms. Multiple regression analyses revealed that multicultural adolescents' closeness with parents was significantly associated with lower levels of Internet addiction. Also, multicultural adolescents' awareness of Internet policies was also significantly associated with lower levels of Internet addiction. Based on the findings, this study suggested the necessity of providing parent education programs and enhancing awareness of Internet policies to reduce Internet addiction among adolescents in multicultural families.

• Journal of Digital Convergence
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• v.18 no.11
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• pp.87-97
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• 2020

This study summarized longevity factors of enterprises and presented longevity mechanism. By analogy of human aging and corporate longevity, the company's decline and longevity phenomenon were analyzed to derive corporate longevity mechanism, presented domestic and foreign longevity enterprises' cases study using above mechanism. The longevity mechanism first, as the human body restricts free radicals by dietary restrictions, companies also need continuous input efficiency. Second, as cognitive reserve by high thinking activities helps heath lifespan, companies can strengthen their profitability by continuous R&D. Third, as humans improve antioxidant functions by exercise, companies should develop risk management capabilities for environmental changes. This study can contribute to sustainable strategies for corporate managers, ultimately plan to suggest model of evaluation or diagnosis of corporate longevity.

• Tuberculosis and Respiratory Diseases
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• v.42 no.1
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• pp.99-104
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• 1995

Most cases of eosinophilic pneumonia reported previously have followed a chronic course. The case presented here was acute in onset, suggesting a acute eosinophilic pneumonia. A model of criteria for acute and chronic eosinophilic pneumonia was made by Umeki in 1992. A previously healthy young man presented with cough, sputum, fever, and multiple small nodules on the chest radiograph. We confirmed eosinophilic pneumonia with bronchoalveolar lavage analysis and transbronchial lung biopsy. This case examplifies the recently descrived acute eosinophilic pneumonia.

• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.273-279
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• 2017

Purpose: This study was conducted to identify factors associated with cataract and age-related macular degeneration in elders. Methods: In total, 341,588 men(44.18%,) and women(61.887%), aged over 60, were recruited from Korean National Health Insurance Service-Senior(2002-2013). We also analysed the factors which determine the prevalence of contract (ICD-10: H25) and age-related macular degeneration(ICD-10: H353) using Cox proportional hazard regression model Results: The subjects who were women, in older age, the group of higher income level, with hypertension, with heart disease, and with diabetes, the prevalence of both contract and age-related macular were increased(p<0.0001). Conclusion: The prevalence of contract and age-related macular degeneration were higher in old age of Korean who has chronic diseases such as hypertension, heart disease, and diabetes. The management of chronic diseases are essentially required in elderly for more healthy eye in aged society.

• The Journal of Korean Association of Computer Education
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• v.7 no.1
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• pp.107-118
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• 2004

This study aims to design and implement individual complete learning system based on IPI(Individually Prescribed Instruction) model. Most of current web based learning systems do not consider individual students' ability and just follow the sequence of instructing contents $\rightarrow$ providing problems $\rightarrow$ presenting the result of evaluating. However, this system focuses on individual ability prior to studying subjects. In individual complete learning system, it is acknowledged that a period and a pace to complete each task will differ from students to students, therefore until they complete the whole unit, they are not allowed to move onto the next unit. After completing each unit, there will be a process of evaluating students' performance. It is necessary to show the correct completion of 80% of the evaluation to move onto next step; for those who are evaluated as inadequate to move on, an individual supplementary instruction will be provided. Therefore, this study intends to supplement the deficit of prior learning and provide feedback dependent on individual's learning ability so that the goal of Individual Whole Complete Learning could be accomplished.

• Korean Journal of Social Welfare
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• v.36
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• pp.259-283
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• 1998

This research is based on the assumption that Korea's social consensus among two sides of industry and government on Feb. 2 '98 was not just temporary response to the economic crisis caused by International Monetary Fund financial fund. Some arguments on the applicability of social democracy and corporatism and D. Donnison's perspective on Democratic Socialism are employed in search of an appropriate social consensus model for Korean situation. In the process of analyzing Korean situation in historical context it becomes apparent that there is embryo of stable social consensus beyond the level of tentative social cooperation to overcome the economic crisis. The next step applying the social consensus model to the employment policy for people with disability levels up empirical and theoretical validity of this research. It casts some implications for disability labour market which demands another kind of social consensus among people with disability, employers and the government. These implications include a desirable solution for hard lives of unemployed people with disability in economic difficulties and current policy issues facing Korean government.

• Journal of the Korea Society of Computer and Information
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• v.24 no.12
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• pp.191-199
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• 2019

In this paper, we propose to develop a diagnosis tool for measuring digital competence for university student. To this end, 223 students participated for the survey research. Based on the survey by 6 domain and 40 questions, 6 factors and 18 questions for digital competence measurement were drawn throughout the factors analysis. The results of the confirmatory factor analysis showed the fact that 6 factors and 18 questions that satisfied the model-fit indexes statistically were finally confirmed. And the developed tool demonstrated good results in reliability and validity verification, which were suitable for measuring digital competence for university students. The developed measurement tool of digital competence for university students consisted of 6 sub-components such digital device operation, communication and collaboration, information searching, processing, and management, problem solving and learning, security, digital ethics. The digital competence measuring tool developed in this study is expected to be used to identify the current level of competences for university student, and to enhance their own digital competences through educational supports.