• 한국실내디자인학회논문집
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• 제22권1호
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• pp.256-264
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• 2013

A bathroom in house has been stressed not only as a space for physiology and hygiene but also leisure and healthcare. However, the bathroom is the most likely space where an elderly person can have an accident and it is uncomfortable space for them because of their deteriorating physical ability. So the purpose of this study is to help the elderly use their bathroom conveniently by providing smart service. Therefore, we carry out 18 smart service patterns that contain assistive devices and sensors for bathroom. Considering applicability and frequency, from among these service patterns, we suggest 4 service patterns. First is a fall prevention service. This service helps elderly use the bathroom safely at night. Second is a getting ready to go out service. This service helps the situation that elderly use the bathroom after getting up in the morning. Third is a security service in daily life especially before or after meals. And final is a service regarding personal hygiene service after returning home. This service helps to shower or bathe after return home. These services have positive influence in medical expense reductions, good health care and self-reliance of elderly.

• 보건의료산업학회지
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• 제14권1호
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• pp.67-78
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• 2020

Objectives: Using data from the 1styear of the 7th National Health and Nutrition Survey, this study administered a questionnaire to patients with oral damage and examined the type of medical care used based on the nature of the injury, further characterized by age group and sex. Methods: Of the 8,150 respondents, this study selected those who participated in the health survey and oral exam survey, excluding surveys with missing values, and set 7,681 people as the research participants. This study used SPSS Windows version 23.0(SPSS Inc. IL, USA) as the statistics program and applied the chi-square test (p) based on a complex sample and logistic regression analysis. Results: In the analysis of the type of tooth damage, there was a significant difference (p<.001) in the number of male patients who were injured due to exercise, violence, and safety accidents compared to females. However, there was no significant difference in their type of medical security and whether or not they visited a dental clinic. The patients with private insurance showed relatively high use for tooth extraction and oral surgery (p<.001). Conclusions: The best way to prevent tooth damage is to prevent the accident. For sports or exercises which may cause tooth damage, protective gear, such as a mouthpiece, should be used to prevent tooth damage.

• 디지털산업정보학회논문지
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• 제7권3호
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• pp.63-74
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• 2011

Credit cards are more convenient than cash of heavy. Therefore, credit cards are used widely in on_line (internet) and off_line in nowadays. To use credit cards on internet is commonly secure because client identification based security card and authentication certificate. However, to use in off_line as like shop, store, department, restaurant is unsecure because of irregular accident. As client identification is not used in off_line use of credit cards, the irregular use of counterfeit, stolen and lost card have been increasing in number recently. Therefore, client identification is urgently necessary for secure card using in off_line. And the method of client identification must be simple, don't take long time, convenient for client, card affiliate and card company. In this paper, we study a reform measure of the structure and transaction process for the safety improvement of a credit cards. And we propose several authentication method of short-and long-term for client identification. In the proposal, the client authentication method by OTP application of smart-phone is efficient nowadays.

• 디지털산업정보학회논문지
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• 제15권4호
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• pp.51-62
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• 2019

Recently, as the number of Smart Phone users increase, the simple payment system has been able to make payments using only card information such as a registered password without extra authorized certificate authentication or input of card information. In this paper, it will examine and analyze simple payment system provided by IT companies and financial institutions and the simple payment system that operates global online payment system by case view of operational direction. Then with this examination, it will study ways to improve the problems with terms of convenience and stability in terms of users. In this paper, it will analyze the inconvenient problem in using the QR code system that recently introduced and will propose solutions. Also, it will propose suggestions to solve inconvenience that caused by system that supports NFC simple payment terminal in Korea is not universalize by analyze case study on the overseas simple payment system. It will also propose opinions on the matters that customer having responsible for event of a small financial accident related to loss or theft when using the simple payment system. Then it will suggest expected requirements to prepare new security technical countermeasures and solve the conditions of meeting expectation satisfaction of users.

• 문화기술의 융합
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• 제2권2호
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• pp.37-44
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• 2016

대학 기숙사생들의 안전의식 수준을 평가하여 사고예방을 위한 문제점 도출 및 개선방안을 제시하기 위하여 본 연구를 수행하였다. 사생들 150명을 대상으로 안전교육 실시의 내용, 효과, 요구도 등을 조사하였으며, 개인별 안전의식 수준을 평가하기 위하여 위험요소의 파악, 위험한 행동, 재난 대응 요령 등을 설문하였다. 연구결과, 안전교육의 만족도와 효과는 높았던 것으로 조사되었으며, 사고요인에 대한 인지도는 높으나 구체적인 대응방법에 대한 이해도가 부족한 것으로 나타나 재난발생 시 대응방법에 대한 안전교육을 강화하여야 할 것으로 생각된다.

• 한국전자통신학회논문지
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• 제15권4호
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• pp.747-752
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• 2020

철강 코일 또는 강판과 같은 특수물류는 경험이 많은 인력에 의존하여 물류가 선적되어 배치되고 있다. 따라서 인간의 실수나 경험의 부재로 인한 미숙함으로 인한 사고 발생 가능성이 매우 크다. 이러한 사고 발생 가능성을 사전에 방지하고, 특수물류에 요구되는 보안 적용사항과 화물의 안정성 여부, 그리고 정확한 적하목록 체크를 위한 운영 시스템에 대한 요구가 발생하고 있다. 또한, 선박의 균형을 맞추기 위한 정확한 선적 검수가 필요한 상황이다. 본 논문은 현재 시행하고 있는 선적 검수의 문제점들을 분석하고, 이를 개선하기 위한 WEB 기반 항만 특수물류 선적 검수 및 밸런싱 운영 시스템을 제안하였다.

• 정보처리학회논문지C
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• 제17C권2호
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• pp.159-164
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• 2010

완전삭제 기술은 저장장치 내 데이터를 복구가 불가능하도록 흔적 없이 완벽하게 삭제하는 기술이다. 최근 개인정보 유출 사고가 급증함에 따라 저장된 데이터의 관리가 중요해지고 있다. 특히 개인정보가 포함된 데이터를 폐기해야 하는 경우, 데이터를 영구적으로 삭제하는 완전삭제 도구를 사용함으로써 개인정보에 대한 불필요한 유출을 막을 수 있다. 또한 완전삭제 기술은 데이터 보안 및 프라이버시 보호 측면으로 활용 가능하다. 그러나 완전삭제 기술은 의도적으로 사건과 관련된 증거를 인멸하기 위해 사용될 수도 있다. 이러한 의도적인 증거 인멸은 사건 수사에 있어서 중요한 실마리가 될 수 있다. 본 논문에서는 디지털 포렌식 수사 과정에서 완전삭제 도구의 사용 흔적을 확인할 수 있는 방안을 제시한다.

• 보건행정학회지
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• 제31권4호
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• pp.423-436
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• 2021

This article summarizes the structure of China's current social health insurance system and reviews the development status of China's private health insurance (PHI). China's medical security system is mainly composed of two parts: basic medical insurance (BMI) and PHI. Among them, the BMI provides reimbursement of basic medical expenses for the insured persons according to different proportions. PHI is a necessary supplement to the BMI and provides assistance to the insured persons in the event of illness or accident. By having PHI, people can obtain medical protection outside the coverage of BMI. In the development of PHI in China, the total medical cost is high and the insurance market size is large, but the proportion of PHI expenditure is low and the personal burden is high. Through this Chinese case, it will be helpful for mutual development between Korean PHI and national health insurance, for Korean insurance companies to enter the Chinese market, and for removing the medical burden on the people.

• Journal of Information Processing Systems
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• 제15권3호
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• pp.632-644
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• 2019

The remote monitoring and warning system for dangerous chemicals is designed with the concept of the Cyber-Physical System (CPS) in this paper. The real-time perception, dynamic control, and information service of major hazards chemicals are realized in this CPS system. The CPS system architecture, the physical layer and the applacation layer, are designed in this paper. The terminal node is mainly composed of the field collectors which complete the data acquisition of sensors and video in the physical layers, and the use of application layer makes CPS system safer and more reliable to monitor the hazardous chemicals. The cloud application layer completes the risk identification and the prediction of the major hazard sources. The early intelligent warning of the major dangerous chemicals is realized and the security risk images are given in the cloud application layer. With the CPS technology, the remote network of hazardous chemicals has been completed, and a major hazard monitoring and accident warning online system is formed. Through the experiment of the terminal node, it can be proved that the terminal node can complete the mass data collection and classify. With this experiment it can be obtained the CPS system is safe and effective. In order to verify feasible, the multi-risk warning based on CPS is simulated, and results show that the system solves the problem of hazardous chemicals enterprises safety management.

• Nuclear Engineering and Technology
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• 제51권7호
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• pp.1758-1764
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• 2019

As the safety level of nuclear power plants (NPPs) relates to the safety of individuals, society, and the environment, it is important to establish NPP safety goals. In Korea, two quantitative health objectives and one large release frequency (LRF) criterion were formally set as quantitative safety goals for NPPs by the Nuclear Safety and Security Commission in 2016. The risks of prompt and cancer fatalities from NPPs should be less than 0.1% of the overall risk, and the frequency of nuclear accidents releasing more than 100 TBq of Cs-137 should not exceed 1E-06 per reactor year. This paper reviews the hierarchical structure of safety goals in Korea, its relationship with those of other countries, and the relationships among safety goals and subsidiary criteria like core damage frequency and large early release frequency. By analyzing the effect of the release of 100 TBq of Cs-137 via consequence analysis codes in eight different accident scenarios, it was shown that meeting the LRF criterion results in negligible prompt fatalities in the surrounding area. Hence, the LRF criterion dominates the safety goals for Korean NPPs. Safety goals must be consistent with national policy, international standards, and the goals of other counties.