• KSII Transactions on Internet and Information Systems (TIIS)
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• v.5 no.2
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• pp.359-373
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• 2011

Demand for rich media services is rapidly increasing and, as a result, several technologies are competing to deliver rich media services to mobile, resource-constrained devices. In this paper, we explore the existing rich media technologies and analyze their key features. In addition, in order to accommodate the new requirements introduced by emerging service models, such as service convergence, these technologies must evolve from their current status. We examine how the community intends to achieve this.

• The Bulletin of The Korean Astronomical Society
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• v.46 no.2
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• pp.61.4-61.4
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• 2021

Searching for technosignatures is the fundamental tool for finding the evidence of the extraterrestrial life in the Universe along with searching for biosignatures. We summarize the current status of the radio SETI(Search for Extraterrestrial Intelligence) such as the Breakthrough Listen project and suggest a concept of the VLBI SETI with KVN(Korean VLBI Network). In addition, we introduce conceptual studies of the SETI on the surface of Moon's farside and in lunar orbit.

• Proceedings of the KIEE Conference
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• 1997.07b
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• pp.542-544
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• 1997

The analysis of distribution line faults is essential to the proper protections in the power system. A high impedance fault does not make enough current to cause conventional protective devices. In this paper, Fractal dimensions are estimated for distinction between normal status and fault status in the power system. Application of the concepts of the fractal geometry to analyze chaotic properties of high impedance fault current was described. In addition, to analyze variation of fault current and normal current on phase plane, embedding state variables are reconstructed from 1 dimensional time series.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.7
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• pp.3279-3286
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• 2014

Background: Cancer is one of the leading causes of death in Korea. To reduce cancer incidence, the Korean National Cancer Center (KNCC) has been expanding its organized cancer screening program. In addition, there are opportunistic screening programs that can be chosen by individuals or their healthcare providers. The purpose of this study was to investigate factors associated with participation in organized and opportunistic cancer screening programs, with a particular focus on socioeconomic factors. Materials and Methods: We used data from the Korea National Health and Nutrition Examination Survey (KNHANES), a cross-sectional nationwide study conducted by the Korean Ministry of Health and Welfare from 2007 to 2011. The study included information from 9,708 men and 12,739 women aged 19 years or over. Multinomial logistic regression analysis was conducted, adjusting for age, year of data collection, residential region, current smoking status, current alcohol consumption status, exercise, marriage status, job status, perceived health status, stress level, BMI, limitation of activities, cancer history, health insurance type, and private insurance status, to investigate the association between education level, economic status, and cancer screening participation. Results: In terms of education level, disparities in attendance were observed only for the opportunistic screening program. In contrast, there was no association between education level and participation in organized screening. In terms of economic status, disparities in opportunistic screening participation were observed at all income levels, but disparities in organized screening participation were observed only at the highest income level. Conclusions: Our findings reveal that socioeconomic factors, including educational level and economic status, were not significantly associated with participation in organized cancer screening, except at the highest level of income.

• Korean Journal of Health Education and Promotion
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• v.13 no.1
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• pp.28-44
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• 1996

The purpose of this study is to examine the associated risk factors for adolescent cigarette smoking. In February 1995, a total of 1793 students from 17 general high schools in Seoul were assessed with a self-completing questionnaire pertaining current smoking status and school.family.peer environmental factors. The results are as follows; 1. The overall proportion of current smoker among students in the study was 17.3%; 27.7% in males and 6.6% in females. 2. There was significant association between smoking status and all school environmental factors (ranks at school, satisfaction at school, study hours after school, extracurricular activity) examined. 3. Siblings smoking in males and family structure in females were significantly associated with the smoking status of students. 4. Functional aspect of family environmental factors, such as APGAR score, parental supervision, attachment to father or to mother were related to smoking status of students. 5. Association with friends who smoke was significantly associated with smoking status of students. 6. In males, association with friends who smoke, ranks at school, siblings smoking were significant positive predictors and APGAR score, parental supervision, attchment to mother were significant negative predictors. In females, association with friends whosmoke, ranks at school, satisfaction at school were significant positive predictors and parental supervision, attchment to father were significant negative predictors. These findings suggest that strategies that influence smoking behavior need to be directed not only to the individual student but also to their peer group, family and school environment.

• Journal of Nutrition and Health
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• v.35 no.10
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• pp.1070-1080
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• 2002

This study was designed to obtain the information concerning food intake, dietary habits, functional status, health condition and cognitive status of the elderly using public health center in Ulsan area. The subjects of this study consisted 154 elderly persons aged 60~82 years. Interviews were conducted using the health habits and food frequency questionnaires to provide basic information for nutrition education program. We evaluated the current food intake, dietary cholesterol intake (cholesterol index), functional status, cognitive function and blood analysis of the subjects. The results of this study were as follows : Mean age of the subjects was 68.7 $\pm$ 6.7years. The average cognitive status score of the subjects was 7.9 $\pm$ 2.0 (full score was 10.0). Male had a higher cognitive status score than female. There was significant difference between cognitive status score and age, education level, pocket money, physical activity and living condition. The subjects who had a higher cognitive status score ate more fish and meats group and milk and milk products than the subjects had a lower cognitive status score. And hemoglobin level, serum triglyceride, HDL-cholesterol and atherogenic index affected to cognitive status while fasting blood glucose and LDL-cholesterol did not any effect on cognitive status. These results have demonstrated that various socioeconomic variables and food intake pattern and nutritional status affect on cognitive status with aging and suggest that proper nutrition education and adequate nutrient intake in quality and quantity are essential in maintaining cognitive status in later life.

• Nuclear industry
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• v.6 no.3 s.37
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• pp.2-6
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• 1986

• JOURNAL OF ELECTRICAL WORLD
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• no.3 s.99
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• pp.26-30
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• 1985

• 대한핵의학회:학술대회논문집
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• 1981.05a
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• pp.111-111
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• 1981

• Ingenium
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• v.16 no.1
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• pp.23-26
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• 2009