• Journal of Radiation Protection and Research
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• 제30권4호
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• pp.167-174
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• 2005

The concentrations of natural and artificial radionuclides in soil and gamma ray dose rate in air at 233 locations in Korea have been determined. The national mean concentrations of $^{232}Th,\;^{226}Ra,\;^{40}K,\;^{137}Cs\;and\;^{90}Sr$ in soil were $60{\pm}31,\;33{\pm}14,\;673{\pm}238,\;35{\pm}9.3\;and\;5.0{\pm}3.4\;Bq\;kg^{-1}$, respectively. The mean gamma-ray dose rate at 1 m above the ground was $7918\;nGy\;h^{-1}$. $^{137}Cs$ concentration had highly significant correlation with organic matter content and cation exchange capacity. $^{90}Sr$ concentration had slightly coherent with pH. The results have been compared with other global radioactivity and radiation measurements.

• 대한안전경영과학회지
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• 제6권1호
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• pp.173-185
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• 2004

The production using U-shaped line is studied. This research presents the relationship among machining time, cycle time and production rate in a U-shaped line. The U-shaped line produces shafts by automated machines. In this paper when any production rate is given the U-shaped line always satisfies the production rate. An algorithm is developed for the determination of cycle time, the number of machines and workers of the U-shaped line in order to minimize the total machine capacity and the number of workers for any given production rate. The U-shaped line was successfully designed by applying the proposed algorithm.

• 대한안전경영과학회지
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• 제16권3호
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• pp.89-100
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• 2014

Construction victims have increased year by year. Disaster proportion is also increasing continuously. Looking over the causes of disasters by each type of work, fall from working platform indicate the highest rate above all so that it is urgently required to set up safety measures. This study is to grasp the present status of construction accidents, to identify areal characteristics of the top 20% accidents on the basis of working platforms with the highest accident rate, to grasp the causes of accidents after their analyses, and to present methods to reduce casualties related to working platforms. As measures to reduce construction disasters, this study proposes to improve safety management and training on working platforms, to complement safety regulations, and to better performance including the development and expansion of certified products suitable for safety regulations.

• 대한안전경영과학회지
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• 제18권2호
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• pp.19-27
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• 2016

Safety accident rate of small-medium construction site is high. because of lack of safety management system, lack of safety management capacity, lack of investment for safety, Owner's insufficient awareness about safety. In order to improve this, Currently in Occupational Safety and Health Act, Construction site of amounts more than 300 million won less than 120 billion (architectural),150 billion won(civil) mandatory subject to the technical guidance on construction accident prevention. Context of construction accident causes with construction accident rate relationship analysis and case analysis of technical guidance, through a survey of stakeholders in the technical guidance drawn the problems of the construction accident prevention technical guidance system and ways to improve on this.

• 대한안전경영과학회지
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• 제19권1호
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• pp.87-94
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• 2017

In construction work, safety accidents often occur in combination with unstable physical and human conditions during preparation and execution of work. In Korea, the accident rate is higher to that of any country in the world. Therefore, it is necessary to take measures by fundamental prescription. In this paper, in the case of construction safety management, we tried to find a reasonable alternative through a questionnaire survey to apply to subcontracting and small-scale construction. In conclusion, workers who are well aware of the task could be able to reduce the accident rate by deploying them as safety management officers after receiving the training.

• 드라이브 ㆍ 컨트롤
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• 제20권2호
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• pp.7-14
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• 2023

Negative perceptions of the construction industry are prevalent due to the high accident rate at construction sites. Recently, with the gradual change of the perception in industrial safety, the demand for improving the safety level of construction sites has increased. Accordingly, the government is preparing various safety-level measures such as the Serious Disaster Punishment Act and support for industrial safety management costs. In addition, private industries are incorporating various safety equipment in the sites. This paper introduced the current status of safety sensors and solutions currently applied to construction equipment and industrial vehicles. The technology development direction suitable for construction equipment was introduced by comparing the operating environment of automobiles and construction equipment. and the need to develop performance standards to protect and revitalize the market for safety devices for construction equipment was suggested.

• Safety and Health at Work
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• 제7권3호
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• pp.213-217
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• 2016

Background: The objective of this study is to identify high-risk groups for industrial accidents by setting up 2003 as the base year and conducting an in-depth analysis of the trends of major industrial accident indexes the index of industrial accident rate, the index of occupational injury rate, the index of occupational illness and disease rate per 10,000 people, and the index of occupational injury fatality rate per 10,000 people for the past 10 years. Methods: This study selected industrial accident victims, who died or received more than 4 days of medical care benefits, due to occupational accidents and diseases occurring at workplaces, subject to the Industrial Accident Compensation Insurance Act, as the study population. Results: According to the trends of four major indexes by workplace characteristics, the whole industry has shown a decreasing tendency in all four major indexes since the base year (2003); as of 2012, the index of industrial accident rate was 67, while the index of occupational injury fatality rate per 10,000 people was 59. Conclusion: The manufacturing industry, age over 50 years and workplaces with more than 50 employees showed a high severity level of occupational accidents. Male workers showed a higher severity level of occupational accidents than female workers. The employment period of < 3 years and newly hired workers with a relatively shorter working period are likely to have more occupational accidents than others. Overall, an industrial accident prevention policy must be established by concentrating all available resources and capacities of these high-risk groups.

• 한국국방경영분석학회지
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• 제15권2호
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• pp.160-169
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• 1989

This study is concerned with the loss rate calculation for evaluating the safety of aircraft series. The objective of this study is to provide the estimation method of safety for the determination of aircraft series, when the aircraft is directly purchased off-the-shelf or co-produced. Especially, in case the initial operation capabilities of alternative aircrafts are substantially different, this research proposes the modified cumulative average method which can effectively estimate the safety of aircraft.

• 대한토목학회논문집
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• 제31권4D호
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• pp.497-509
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• 2011

보행은 인간의 기본적이면서 중요한 교통수단이다. 최근 보행자 사고와 관련하여 보행안전이 중요시 되고 있지만, 보행자안전에 대한 노력과 관심은 매우 미미한 실정으로 경남의 보행안전의 계획 수립과 보행사고의 감소 및 예방을 위해 사용될 보행자안전지수를 개발할 필요가 있다. 이에 본 연구는 보행자 안전에 영향을 크게 미치는 인구10만명당 5년 평균보행자사고, 인구10만명당 2009년 보행자사고, 횡단보도 신호 준수율, 무단 횡단율, 14세 이하 어린이 및 65세 이상 노인인구 2009년 보행자사고의 5개 인자를 사용하여 경상남도의 10개시를 대상으로 보행자안전지수를 개발하였다. 이 지수는 100점 만점으로 환산하며 점수가 높을수록 보행자안전이 양호함을 나타낸다. 창원시, 김해시, 마산시의 보행자안전이 양호한 반면 사천시, 통영시의 보행자안전은 열악한 것으로 분석되었다. 통영시의 보행자안전지수가 낮은 것은 높은 보행자사고율에 기인하며 사천시는 5년 평균보행자사고와 어린이 및 노인 보행자사고율이 높고 무단 횡단율이 높은데 기인함을 볼 수 있다. 경남도 10개 군의 보행자안전지수를 산정하면 함양군과 합천군의 보행자안전이 양호한 반면 함안군, 하동군, 고성군의 보행자 안전이 열악한 것으로 분석 되었다.

• 한국건축시공학회지
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• 제15권1호
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• pp.73-79
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• 2015

산업안전보건관리비 계상기준은 1988년에 제정된 이래 건설 현장의 안전성 향상에 긍정적인 영향을 주고 있다. 기존 연구에서는 안전보건관리비의 요율이 건설 현장의 안전과 건강을 보장하기에 충분하지 않다 주장되고 있는데, 최근 조사에 의하면 다수의 건설현장에서 그나마도 준수하지 않는 것으로 나타났다. 본 연구는 안전보건관리비 기준의 준수 실태를 알아보기 위해 완성공사원가통계에서 집계된 원가비율을 공사규모와 발주자 유형별로 분석하였다. 그 결과 준수율이 발주자 유형별로 볼 때 대부분의 유형에서 실질적으로 매우 낮은 결과가 나왔다. 이는 최소한의 법적 기준마저 준수되지 않고 있음을 의미하며, 향후 산업안전보건관리비 등을 비롯한 관련 법규정의 준수를 위한 강력한 법집행이 요구된다.