• Proceedings of the Korea Information Processing Society Conference
• /
• 2005.11a
• /
• pp.945-948
• /
• 2005

현재 침입탐지시스템(IDS:Intrusion Detection System)은 다양한 평가요소들 - 탐지율, 오탐율, 새로운 공격탐지능력, 안정성 등을 기준으로 평가되고 있고, 이러한 결과는 제품의 보호수준을 결정하거나 한 조직의 정보보호장치로 적합한지를 평가하는 벤치마킹테스트의 방법으로 활용된다. 그러나, 이러한 평가의 결과는 조직의 침입탐지시스템을 구축하고자 하는 네트워크 환경하에서 각각의 침입탐지시스템이 갖는 특성에 따라 상대적인 평가는 가능하나 해당 조직의 네트워크 인프라와 위협요소, 취약점을 고려했을 때 보다 최적의 것이 무엇인지를 평가하는 방법으로는 한계가 있다. 그러므로, 본 연구논문에서는 이러한 한계를 극복하기 위한 방법으로서 조직의 정보보호 위험분석에서 도출된 해당 네트워크 환경의 자산, 위협, 취약성의 결과인 위험과 위험수준을 IDS 평가에 반영하여 조직의 환경하에 보다 적합한 침입탐지시스템 선정이 가능한 평가방법을 제안한다.

• Journal of Korean Society of Transportation
• /
• v.16 no.2
• /
• pp.91-98
• /
• 1998

본 논문에서 교통 상해사고 위험요인들을 정량화하고, 위험요인들 중 교통 상해사고 원인에 가장 근접한 것이 무엇인가를 밝히려고 했다. 사례-조사 연구방법으로는 의학분야에서 많이 사용되는 환자-대조군 방법론을 채택하였다. 서울, 양평, 천안지역을 대상으로 1007년 중 입원환자를 중심으로 채혈조사와 설문조사를 통해 환자국 총 117건과 도로상에서의 일반운전자를 중심으로 호기 알콜테스트와 설문조사를 통한 대조군 총 483건을 수집하여 분석하였다. 승용차의 경우, 교통 상해사고 발생 위험요인으로 27개 항목들이 추출되고, 그 중 '도로의 부적합' 항목(RRR 값:4.057)을 포함 14개 항목이 교통 상해사고 원인에 가장 근접한 것으로 나타났다. 오토바이의 경우, 마찬가지 방법으로 최종적으로 '면허 보유기간' 항목(RRR값:3.733)을 선두로 하여 총 11개 항목이 교통 상해사고를 일으키는 원인에 가깝다는 결과를 얻었다. 또한, 두 경우 모두 인적 요인에 의한 결과피가 크기 때문에 이에 대한 경찰의 지속적인 단속이 필요함을 알 수 있었고, 상대위험도가 높게 나타난 순서대로 교통안전투자 우선순위에 정하면, 효율적인 교통 상해사고 감소를 기할 수 있으리라는 결론에 도달했다.

• Journal of the Korean Society of Radiology
• /
• v.11 no.4
• /
• pp.289-295
• /
• 2017

In general, a number of studies have been conducted on factors affecting breast cancer development, but systematic investigations of risk factors are rare. The purpose of this study was to investigate the factors involved in breast cancer screening before breast ultrasound diagnosis and the risk factors associated with breast cancer screening by ultrasound. Self-administered questionnaire was performed on 417 patients who underwent breast ultrasonography and classified as benign and malignant. Breast cancer was associated with age, BMI, and type of medication(p<0.05). Multivariate analysis showed that the odds ratio was 4.93 times higher in the 50s compared to the less than 50s, 2.43 times higher in the obese group than in the normal group, 0.14 times and 0.16 times lower in hormonal replacement therapy(p<0.05). Therefore, as age increases, periodical examination of health and appropriate weight management are needed. So this study is expected to provide basic data for identification of risk factors affecting breast cancer development.

• Journal of the Society of Disaster Information
• /
• v.17 no.1
• /
• pp.81-96
• /
• 2021

Purpose: Based on the preceding studies in supply chain management, factors were analyzed to verify the effect of risk assessment and risk management factors of the business continuity management system (BCMS) on management performance. The purpose of this study is to establish a systematic risk management plan by deriving the risk factors of BCMS and evaluating unpredictable risks, and at the same time, contributing to a company's competitive advantage without interruption of work. Method: The structural relationship between risk assessment, risk management and management performance of BCMS was derived. To this end, a questionnaire survey was conducted of 124 managers and managers in Korean companies. Frequency analysis, validity analysis, reliability analysis, correlation analysis, and simple regression analysis were performed. Result: First, risk assessment had a positive (+) effect on risk management. Second, risk management had a positive (+) effect on management performance. Finally, risk assessment had a positive (+) effect on management performance. Conclusion: BCMS's risk assessment and risk management capabilities should be managed through financial performance, and risk management activities should be managed through non-financial performance.

• Journal of Radiation Protection and Research
• /
• v.17 no.1
• /
• pp.57-70
• /
• 1992

An excess risk of lung cancer mortality among Koreans, attributable to indoor $^{222}Rn$ daughters exposure, were quantitatively evaluated by applying a stochastic health risk projection model on the radiation exposure. The lung cancer rate in Korean males and females, based on the 1989 demographic data, were estimated to be $22.4/10^5-y\;and\;9.5/10^5-y$, respectively The lifetime baseline lung cancer risks, deduced from these rates, appeared to be 0.047 and 0.019 for males and females, respectively, and were lower than the corresponding 1984 values of 0.067 and 0.025 in the U.S.A. The excess risk coefficients, derived by modified relative risk projection model of the BEIR-IV Committee under the US National Academy of Science, per annual 1.0 WLM of exposure to indoor radon daughters were estimated to be 0.022/WLM for males, 0.009/WLM for females, and 0.017/WLM for both sexes. The resulting annual frequency of excess lung cancer mortality for the life expectancy in the Korean population appeared to be 230/10^6-WLM, which was an approximate median of $120{\sim}450/10^6-WLM$ reported so far in the world.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.18 no.4
• /
• pp.209-215
• /
• 2017

Ground Penetrating Radar (GPR) was applied to an evaluation of the concrete condition of bridge decks with asphalt concrete. Deterioration was considered to have occurred when the relative permittivity of a concrete-faced asphalt concrete overlay showed more than 12. The relative permittivity of concrete varied considerably with the levels of porosity and water. In this study, GPR tests were carried out to determine the influence of weather and concrete condition on the relative permittivity for the research subject of an overlaid concrete bridge deck in public service. According to the test results, if bridge decks are in good condition, the relative permittivity of the top concrete of a bridge deck exhibited a normal distribution. After the deck concrete deteriorated, the relative permittivity varied with the amount of penetrated water according to the weather condition and deteriorated status of deck concrete.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.19 no.3
• /
• pp.623-628
• /
• 2015

The paper produced an application that used Doppler radar sensor to prevent bicycle related accidents. Doppler radar sensor detects any approaching object and gives warning to the user through the danger detection algorithm of the application. The danger detection algorithm determines danger by comparing relative speed using the sensed approaching object and Doppler frequency. It also sends SMS to the preset contact to let him/her be informed of the critical situation in which the user lies when an accident happens. The experiment result showed that the algorithm judged danger by detecting the approach status and speed as well as sent out SMS to the set contact under the assumption that there was an accident.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.30 no.1D
• /
• pp.1-10
• /
• 2010

Safety improvement has been a continuous challenge, especially at toll gate of express highway where traffic conflict often occurs due to frequent lane change by drivers of "Hi-pass" lane and regular "TCS" lane. As a part of research on safety at toll gate, this study videotaped traffic conflict data between vehicles using centrally located "Hi-pass" lane and regular "TCS" lane and analyzed accident risk. According to the correlation analysis of vehicle speed, relative vehicle speed, and sudden vehicle deceleration rate due to traffic conflict, when the relative vehicle speed between centrally located "Hi-pass" lane and regular "TCS" lane increases, sudden vehicle deceleration rate also increases. One of the findings is that centrally located "Hi-pass" lane at toll gate shows different location for traffic conflict, and frequency of traffic conflict and the relative vehicle speed was also different based on vehicle lane use. TA (Time to Accident) analysis shows that accident rate is high at toll gate where Hipass lane is installed in center lane, when the occurrence of sudden vehicle deceleration and deceleration time of vehicles rise for vehicles on "Hi-pass" lane. Furthermore, if the expressway entrance/exit point is closely located to toll gate, TA showed a low value. Thus, it is necessary to reduce the relative vehicle speed in order to improve safety. The Study presents reduction of the relevant vehicular speed and prevention of accidents at the centrally installed "Hi-pass" lane as an important strategy for safety improvement at toll gate.

• Fire Science and Engineering
• /
• v.14 no.3
• /
• pp.27-32
• /
• 2000

The assessment of wildland fire hazard is the first priority to be considered in the prevention, extinction and control of wildland fire. For the standard to measure wildland fire hazard, the wildland fire Warning System is currently being used in Korea which computes the wildland fire occurrence hazard index through a stick weight to moisture conversion formula. It shows the risk of fuel substance being exposed to fire by meteorological factors. For a comprehensive assessment of wildland fire hazards by area, the major factors'hazards need to be measured and the assessment of wildland fire needs to be conducted through historical statistic examination. Therefore, the wildland (ire outbreak frequency and its seriousness of damage are analyzed through historical statistic examination to conduct the assessment of a wildland fire hazard, and then the calorific value of a forest is analyzed through differential scanning calorimeter measurement which assesses the comparative calorific hazard according to the geographical distribution of vegetation.

• Korea Trade Review
• /
• v.48 no.2
• /
• pp.197-216
• /
• 2023

This research aims to examine and reevaluate the risk management procedures required for facilitating E-Commerce exports by Small and Medium-sized Enterprises(SMEs) in the context of customs risk management procedures. Based on risk management studies, this research focuses on three research questions. First, what courses comprise the export risk management structure? Second, what are the key issues in risk management in facilitating E-Commerce export clearance? Third, based on the research results, what are the implications and improvements for export customs risk management in boosting SMEs' E-Commerce exports? The research concluded that risk control for SMEs' E-Comerce exports should be further strengthened based on a compliance management approach. To achieve this, the customs authorities should develop a new method of reasoning about the difficulties SMEs face in exporting and the risks of failure to comply with the regulations at the foreign markets.