• The Journal of Korean Society for School & Community Health Education
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• v.23 no.2
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• pp.25-38
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• 2022

목적: 본 연구의 목적은 대사증후군 주의군 대비 대사증후군의 위험요소를 식별하여 예방을 위한 중재방안을 마련하기 위한 것이다. 방법: 한국의료패널 2015년도 데이터를 활용하여 당뇨만 앓고 있는 사람을 주의군으로 당뇨, 고혈압, 이상지질혈증을 모두 앓고 있는 사람을 대사증후군으로 구분하여 추출한 다음 가중치를 부여하여 총 1,559,884명을 대상으로 하였다. 주의군 대비 개인적 특성, 건강생활습관 특성, 삶의 질 특성, 의료이용 특성에 대한 대사증후군의 영향요인을 분석하였다. 결과: 개인적 특성에서는 40대미만 연령대에 비해 연령에 비례하여 대사증후군 위험이 증가하다 70대에 40대미만과 유사한 수준으로 떨어졌다. 남성보다는 여성, 고졸이하보다는 대졸이상, 중소지역에 비해 서울시 거주자, 장애가 없는 군보다는 있는 군, 의료급여가입자보다는 건강보험 가입자, 경제활동을 안하는 군보다는 경제활동 군의 대사증후군 위험이 높았다. 건강생활 습관 특성에서는 비흡연자보다는 흡연자, 술을 안마시는 군보다는 주 2-3회 이상 음주자, 운동을 하는 군보다 안하는 군, BMI가 정상인 군보다는 30 이상인 군에서 대사증후군 위험이 높았다. 삶의 질 특성에서는 일상 활동에 지장이 없는 군보다 있는 군, 통증이나 불편이 없는 군보다 있는 군, 주관적 건강상태가 보통이상보다는 나쁜 군, 섭식문제가 없는 군보다 있었던 군에서 대사증후군 위험이 높았다. 의료이용 특성에서는 미충족 의료이용 경험이 없는 군보다 있었던 군, 약제비가 부담이 안되는 군보다 부담이 되는 군에서 대사증후군 위험이 높았다. 결론: 당뇨를 앓고 있는 그룹 중 본 연구를 통해 확인된 대사증후군 위험 요소가 많은 이들에 대해 우선적으로 대사증후군 예방 보건교육을 집중하는 방안을 제언한다.

• Journal of Nutrition and Health
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• v.55 no.3
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• pp.359-375
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• 2022

Purpose: Adult Korean men belonging to the main economically active population are known to have long sedentary hours. This study was undertaken to determine the difference and relevance of sedentary hours on the nutrition, diet, and health status of adult men, and to suggest how to prevent health risk factors. Methods: Subjects (n = 1,068) were classified into 4 groups based on their sedentary hours, ranging from the first quartile (Q1) having the least hours spent sitting, to the fourth quartile (Q4) spending the longest hours. Results: Subjects belonging to Q4 had the lowest average age, the largest waist circumference, and the highest level of education. Among those engaged in economic activities, the ratio of white-collar workers was significantly higher in Q4. Accordingly, the rate of not doing high-intensity or moderate-intensity physical activity while working was also the highest in Q4. A significant difference was obtained in the drinking frequency between groups, but this was found to be associated with the average working hours rather than sedentary hours. The proportion of not doing aerobic exercise was higher with longer sitting hours. The highest diagnosis of diabetes (8.8%) was obtained in the Q4 group. Among the factors related to cardiovascular disease, only low density lipoprotein-cholesterol showed a significant difference, with Q4 being significantly higher than Q1. Considering energy and nutrient intake, vitamin B₁ and calcium intake were the lowest in the group with the longest sitting hours, as well as the least consumption of vitamin C than the recommended estimated average requirement. Conclusion: The results of this study suggest that the health and nutritional status of Korean adult men are affected by sedentary hours. This should be recognized as a health risk factor and guidelines need to be developed for sedentary lifestyle management.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.1
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• pp.79-86
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• 2021

In order to increase the probability of success in big data projects, quantified techniques are required to analyze the root cause of risks from complex causes and establish optimal countermeasures. To this end, this study measures risk factors and relationships through SNA analysis and presents a way to respond to risks based on them. In other words, it derives a dependency network matrix by utilizing the results of correlation analysis between risk groups in the big data projects presented in the preliminary study and performs SNA analysis. In order to derive the dependency network matrix, partial correlation is obtained from the correlation between the risk nodes, and activity dependencies are derived by node by calculating the correlation influence and correlation dependency, thereby producing the causal relationship between the risk nodes and the degree of influence between all nodes in correlation. Recognizing the root cause of risks from networks between risk factors derived through SNA between risk factors enables more optimized and efficient risk management. This study is the first to apply SNA analysis techniques in relation to risk management response, and the results of this study are significant in that it not only optimizes the sequence of risk management for major risks in relation to risk management in IT projects but also presents a new risk analysis technique for risk control.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.2
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• pp.238-247
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• 2023

Liquefied petroleum gas (LPG) is an attractive fuel for ships considering its current technology and economic viability. However, safety guidelines for LPG-fueled ships are still under development, and there have been no cases of applying LPG propulsion systems to small and medium-sized ships in Korea. The purpose of this study was to perform an objective risk assessment for the first marine LPG engine system and propose safe operational standards. First, hazard and operability (HAZOP) analysis was used to divide the engine system into five nodes, and 58 hazards were identified. To compensate for the subjectivity of qualitative evaluation using HAZOP analysis, fuzzy set theory was used, and additional risk factors, such as detectability and sensitivity, were included to compare the relative weights of the risk factors using a fuzzy analytical hierarchy process. As a result, among the five risk factors, those with a major impact on risk were determined to be the frequency and severity. Finally, the fuzzy technique for order of preference by similarity to ideal solution (TOPSIS) was applied to select the risk rank more precisely by considering the weights of the risk factors. The risk level was divided into 47 groups, and the major hazard during the operation of the engine system was found through the analysis to be gas leakage during maintenance of the LPG supply line. The technique proposed can be applied to various facilities, such as LPG supply systems, and can be utilized as a standard procedure for risk assessment in developing safety standards for LPG-powered ships.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.11
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• pp.1481-1488
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• 2018

As female gamers are rapidly increasing, the misogyny and the misandry in game playing situation are also increasing. Recent #Gamergate and GodGunbae incident exhibit that such discriminative/hate behaviour in game playing can be developed into real physical threat or crime. In this paper, we investigate and analyze young Korean game players on how the attackers group, victims group, and gender-issue-indifferent group behave differently in game playing through survey. We found that male gamers had high hostile sexism against female gamers especially on females' game attitude and streotyped hatred with respect to the gender ${\times}$ group interaction. In big-5 personality test, however, it is not clear if attackers and victims had a noticeable different personality patterns. In result, we verify that there exist gender stereotype and high hostile sexism among young Korean gamers. Active gender-equality education on their adolescent period is necessary to avoid such destructive hatred in game playing.

• Annual Conference of KIPS
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• 2017.04a
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• pp.771-772
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• 2017

내부 정보 유출 사고의 빈도가 높아지게 되면서 이러한 내부 정보 유출을 막기 위해 DLP(Data Loss Prevention), DRM(Digital Rights Management), DB 접근 통제 솔루션, 인터넷 접근 차단 솔루션과 같은 여러 가지 보안 솔루션을 적용하고 있으나, 내부 정보 유출을 시도하는 개인의 행동을 기반으로 개인을 탐지한다는 문제점을 가지고 있다. 본 논문에서는 개인이 아닌 조직으로 이루어진 내부 정보 유출의 행위를 탐지하고 대응하기 위해 보안로그를 위험 사용자들끼리 그룹화 하여 내부 정보 유출 여부를 판단하는 시스템을 제안한다.

• Review of KIISC
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• v.30 no.4
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• pp.39-47
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• 2020

우리나라에서 2020년 1월 데이터 3법이 개정되면서 개인정보의 보호와 활용의 기반이 마련되었다. 가명처리 개념이 도입되었고, 국제 표준에 근거한 가명 처리의 이행이 요구되는 시점이다. 개인정보보호 요구사항은 일반적으로 법제도, 위험평가, 조직간 계약에서 나온다. 국제표준은 이러한 개인정보보호와 활용과 보호에 대한 글로벌 표준을 제공하여 국경을 넘는 호환성있는 개인정보의 처리를 가능케 한다. 개인정보보호 국제표준화를 주도적으로 추진하는 표준화 그룹은 국제표준화위원회/전기위원회 합동위원회 1/서브위원회 27/작업반 5 (ISO/IEC JTC 1/SC 27/WG 5)이다. 2019년 10월 프랑스 파리 회의 이후에는 개인정보보호 분야 4건의 신규워크아이템 제안과 2건의 연구회기가 진행되었다. 2020년 4월 회의는 당초 러시아 상트페테르부르크에서 열릴 예정이었으나 코로나19의 확산으로 인해 전자회의로 개최되었다. 본고에서는 이 그룹에서 2019년 10월 이후 추진되고 있는 개인정보보호 관련 국제표준화 동향을 제시하고자 한다. 또한 지난 4월 SC27 WG5 전자 회의에서 논의된 개인정보보호 관련 주요 표준화 이슈와 대응 방안을 제시한다.

• Annual Conference of KIPS
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• 2010.11a
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• pp.1335-1338
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• 2010

현재 제공되는 문서 DRM은 권한 그룹 또는 사용자에 따른 접근 제어를 제공하고 있다. 단순히 권한 그룹 또는 사용자 기반으로 문서를 제어 한다는 것은 문서를 보호하기 위해서는 많은 위험이 따른다. 오브젝트를 과하게 보호한다면 유연성이 떨어지고, 유연성을 높이고자 하면 보안강도가 떨어지게 되므로 보안강도와 유연성은 트레이드오프 관계에 있다. 따라서 본 논문에서는 유연성을 높이면서 문서의 보안강도 또한 높일 수 있는 방법에 대해 제시하고자 한다. 본 논문에서는 각 문서의 security level에 따라 문서 열기 권한을 다르게 적용함으로써 비밀문서의 보안강도와 유연성을 높일 수 있는 방법에 대해 제안한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.379-380
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• 2022

In this paper, we propose the model of sensor network group to implement mission of several hazard area. Especially it should be considered that the wireless system take the next mission method not to single mission but to sequence mission implement in group mission conduction. That is, not the completion by a node system, the implement property should be presented during transferring mission of next node.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.9
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• pp.424-431
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• 2020

The purpose of this study was to investigate the effects of the Otago exercise program on physical function and risk of falling in elderly who have experienced falls. Thirty-six elderly people who had experienced falls more than once were randomly classified into an experimental group and control group. Each group exercised 30 minutes three times per week for a total of 8 weeks. Measurements were made using Tetrax to assess risk of falls. In addition, to measure physical function, static balance was measured using Biorescue, dynamic balance was measured using TUG, walking ability was measured using 10 MWT, and lower extremity strength was measured using FTSST. A paired t-test was conducted to verify the difference between before and after exercise in each group, and an independent t-test was performed for comparison between the groups. Regarding the experimental and control groups, static balance ability and dynamic balance ability increased significantly after exercise, and risk of falls decreased (p<.05). Lower extremity strength and gait ability increased significantly after exercise only in the experimental group (p<.05). Based on these results, the Otago exercise program is effective in improving physical function and reducing risk of falls in elderly people who have experienced falls.