• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.7
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• pp.1065-1074
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• 2013

The study examined how the risk perception of cellular phone electromagnetic waves' possibility to harm human bodies would be psychologically different by gender and age. The study measured the risk perception targeting a total of 1,001 men and women in their twenties and more living in six major cities in Korea. According to the results, for the risk perception by gender, the women would recognize the risk of cellular phone electromagnetic waves more than the men. Among the women, those in their fifties appeared to have the greatest risk perception. In particular, the risk perception difference by age and gender was observed to be affected by psychological factors and, the study should be regarded academically significant for having verified the importance. For general people, they would perceive the risk via those psychological factors as experiences in daily life. Therefore, in order to relieve social conflicts caused by the risk, basic risk communication based on proper understanding of how the general people would recognize the risk should be provided. Hence, the study is expected to be a chance for intervention strategy research on how our community would proceed with communication and how the community, again, apprehends the cellular phone electromagnetic waves as well.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1262-1264
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• 2015

최근 국내 재난발생의 빈도가 잦고 이를 해결하기 위한 재난대응 담당자들의 역량에 대한 관심이 높아지면서 재난역량을 강화하기 위한 교육 및 훈련에 대한 체계 정립이 강화되고 있다. 본 연구는 실제 재난발생사례 및 추이 분석을 통한 대규모 국가재난으로 전개 가능한 시나리오를 개발하고, 시나리오 전개에 따른 현대비수준과의 갭을 분석하여 재난관리책임기관의 대응역량 강화 방안을 마련하는 것을 연구 목표로 하고 있다. 이를 위해 여러 가지 재난 유형 중 최근 위험성이 커지고 있는 "화학유해물질 유출사고"에 관한 재난 상황 시나리오를 개발하여 시나리오의 재난요인 변수 데이터가 재난책임 담당자의 대응에 어떤 영향을 미치는지 살펴보고, 재난요인 변수 DB를 활용하여 재난대응역량 강화에 대한 방안을 제공한다.

• Journal of the Korea Safety Management & Science
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• v.16 no.2
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• pp.81-90
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• 2014

Flexible production system has been expanded to all sectors of economy with the change of labor market and diversification of employment. The unstable employment with irregular work has replaced stable employment with regular work. This study has investigate the impact pathway of the type of employment on health status especially ill-health symptoms experiences. Among the first Korean Working Conditions Survey data, the employee's response data was used to analyze the path way with multiple regression analysis. The result has shown the direct effect of the type of employment on ill-health symptoms experience. Indirect effect of the type of employment was found the pathway via the exposure to noise, high temperature, low temperature, dust, skin contact to chemicals, painful posture, heavy material handling, standing position, repetitive movement of hands. However the exposure to the other hazardous factors such as organic solvent, wholebody vibration, radiation, lifting people, infectious materials were not influenced by the type of employment.

• Journal of the Korean Institute of Gas
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• v.27 no.4
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• pp.1-11
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• 2023

The size of the OLED material market is expected to grow from $1.1 billion in 2019 to $2.3 billion in 2023, with an average annual sustainable growth of more than 19%. Among the facilities mainly used by OLED material manufacturers, accidents such as fire, explosion, and leakage frequently occur when using filtration equipment, so it is necessary to improve the risk when using filtration equipment. In this study, it was divided into four main processes, namely, assembly and disassembly process, filtration process, wet cake recovery process, and washing process in order to derive the risks associated with the use of filtration equipment. Hazard factors were derived by conducting accident case investigations, preliminary interviews, and surveys. For the analysis of questionnaire results, statistical analysis such as frequency analysis and Pearson chi-square test analysis was performed using SPSS 21, and risk improvement measures were suggested using the analyzed results. It is expected that this study will serve as a basis for dealing with safety and risk factors that may occur as the size of the OLED market expands.

• Environmental and Resource Economics Review
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• v.15 no.2
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• pp.147-175
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• 2006

This paper attempts to incorporate three important factors-perceptions, behavior and valuation-in analysing consumers' responses to health risks from environmental pollutants. Using a survey sample of 500 consumers in the Chonbuk province area, this paper empirically investigated determinants of risk perceptions from using tap water as drinking water. Most consumers were considerably concerned about health risks from drinking tap water. Moreover, those subjective concerns were not random, but were systematically related to individuals' demographic variables such as age, gender, and family size. Those subjective beliefs also influenced respondents' purchase intentions on safer water bottles, in response to a contingent behavior question of presenting two types of water bottles. The technical risk information provided in the survey had significant effects on purchase intentions only when it was interacted with respondents' actual averting practice. In addition, the sample selection effects were present by eliminating respondents who decided not to purchase either of two types of water bottles. The potential selection bias had impacts on the coefficients of the price difference variable, and subsequently the estimates of the price increments for health risk reductions.

• Journal of Navigation and Port Research
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• v.46 no.1
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• pp.57-72
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• 2022

The recent increase in international trade volume and explosive increase in cargo volume due to the non-face-to-face society are leading to an increase in risk exposure and safety accidents in the port logistics industry. Consequently, as the atmosphere and consensus on safety are spreading throughout the society, various safety laws are being enacted by the industry. Nevertheless, according to the industrial accidents status analysis by the Ministry of Employment and Labor, the average annual number of injured persons increased by 11.1% and the number of deaths by 4.0% from 2015 to 2019. This means that special attention should be paid to possible future risks and preventive measures for major causes of accidents should be established. Therefore, in this study, risk assessment was conducted based on 5,028 accident cases that were reported by the Korea Occupational Safety and Health Agency for 5 years, from 2016 to 2020, and major risk factors for each industry were derived, and then bow-tie analysis was conducted to perform the risk assessment; Further, the study aimed to derive the causes and preventive measures from the risk factors.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.402-404
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• 2022

본 논문은 재난 시 데이터 보호를 위한 제도화 방안을 데이터센터(저장시설)라는 공간적 측면을 중심으로 연구하고 있다. 국내 데이터산업 및 센터의 현황에 대한 분석을 토대로 데이터의 보호 및 관리에 미칠 수 있는 영향 및 위험성을 분석하였다. 또한 데이터 저장시설로의 데이터 집중화·거대화와 일상생활부터 국방, 안보의 영역에 이르기까지 기간산업에 가까운 영향력에도 불구하고 데이터센터(저장시설)에 대한 재난 예방·대응 및 데이터 보호와 관련하여 제도화 및 세부규정 없이 민간에 운용을 거의 일임하고 있는 상황에서 관련 내용의 제도화를 통해 재난발생 시 유해·위험요인으로부터 데이터 보호 및 피해를 최소화하고 리질리언스을 확보하는 데 그 목적이 있다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.420-425
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• 2010

In the process of warm forging, billet is heated up to $800^{\circ}C$ and located in the upper part of die block impression. The scattered oxidized scale may cause workers burn and shortening of die life sticking to the die block impression. The separating materials sprayed in die block cause harmful dust, harmful mist, fume, and bad odor which contaminate workshop environment. The process is classified as one of the avoided jobs and make the planned output achievement difficult. Development of an elimination device to clear out the contaminating materials in the workshop and improvement of the unsatisfactory maintenance method to fix the abrasion of die block impression which delays the dead line, cost increases needs to be developed. In this research, I tried to solve the problems caused in warm forging of bronze pipe joint such as the billet heating process, die maintenance, and manufacturing cost through improvement of warming forging manufacturing method and die maintenance method and eliminating harmful gas which will make the workshop more environment friendly.

• 학교보건
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• s.2
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• pp.14-17
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• 1976

도시와 공업지대의 각급 학교 주변에는 교육에 장해가 되는 각종 공해요인이 증가해 가고 있다. 학교에 접근한 차도,기차선로,공장,극장,시장 등에서 배출되는 소음.진동,악취,분진,유독개스 등의 공해현상을 비롯해서 학교 우물의 오염을 가져오는 지하수 오염,학생들의 등교길을 위협하는 교통기관의 위험요소,유해식품을 판매하는 상점,불량오락 시설등은 학교 환경을 악화하고 교육에 육체적,정신적 장해를 초래하는 예가 많다. 이러한 학교 주변의 공해를 방지하기 위해서 학교보건법에는 도시에서는 학교 주변 200m, 농촌에서는 300m 이내의 공해요인을 지방행정청이 금지하거나 철거시킬 수 있는 권한을 부여하고 있지만, 사실상 그것을 발동시키기에는 너무나 많은 문제가 있어 거의 방치상태에 놓여 있다고 해도 과언이 아니다. 학생들의 생활의 거의 전부를 차지하고 있는 학교와 그 주변의 물리적 정신적 영향은 곧 학생들의 교육효과로 나타난다. 각종 공해가 방치되고 불법행위가 교문앞에서 감행되는 것이 허용되는 사회는 바로 학교 주변의 이러한 공해의 현실에서부터 시작된다. 이러한 공해현상이 어떠한 장해를 가져오는가를 알아 보기로 한다.

• Journal of Internet of Things and Convergence
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• v.5 no.2
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• pp.73-79
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• 2019

Research is underway on services and systems that provide real-time alerts for suffocating gases and potentially explosive materials, but currently smart bend type services are lacking. This study supports real-time identification of explosion hazards due to static electricity in the workplace and immediate elimination of accident occurrence factors, real-time monitoring of worker status and workplace hazards (oxygen, hazardous chemical concentration), and immediate warning and data in case of danger. We propose a method of establishing an accident prevention system through analysis. In this way, various accidents that may occur in industrial sites are monitored using IoT-based intelligent sensor nodes, wireless network technology, data processing middleware, and integrated control system, and real-time risk information at the industrial sites is prevented and accidents are prevented. By supporting a safe working environment, the company can significantly reduce costs compared to post-procurement costs.