• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.05b
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• pp.235-236
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• 2003

시멘트 업계에서 필연적으로 다량 배출되는 질소산화물(NOx)의 법적 규제치는 350ppm(산소 농도 13% 기준)이나 대부분의 시멘트 사업장에서 기준치를 초과하여 배출되고 있는 실정이다. 시멘트 산업은 석회소성로의 고온운전과 다량의 연료사용 등 시멘트 제조의 공정특성상 타 산업에 비해 많은 질소산화물을 배출하여 왔으나, 사업장 주변지역 환경에 질소산화물이 미치는 영향에 관한 연구가 전혀 이루어지지 않아 이에 대한 자료가 전무한 실정에 있다. (중략)

• 전기의세계
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• v.26 no.5
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• pp.12-17
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• 1977

인류는 원자력발전방식에 의존치 않고서는 현재의 문명발전을 지탱할 수 없는 현실에 직면하고 있다. 특히 고도의 성장을 정책기조로 삼고 있으면서 국내에 가용부존화석연료자원이 거의 없는 우리나라의 경우는 더욱 그렇다. 원자력발전제고는역사적 필연에 속하는 일이다. 다만 문제시되는 것은 이의 경제성, 기술성, 공해문제, 안전보장 등인데, 아직까지 국제적으로 철저한 대책이 강구되어 있지못하다고 평가되고 있는 안전보장문제를 제외하고는 대체적으로 만족스러울만한 단계에 도달하고 있는 형편이며 이런 경향은 앞으로는 더욱 개선될 것이다. 본고에서는 원자력발전의 안전성실태를 중점적으로 다루었다. 안전성확보를 위해서는 설계, 제작, 설치, 품질보증, 운전 및 보수에 있어서 가장 보수적으로 임하고 있으므로 그리 큰 문제는 없을 것으로 평가되며 더욱이 장차는 보다 더 철저한 대비책이 마련될것이 기대되므로 장래의 전망은 낙관이 되고있다.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 1994.05a
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• pp.45-50
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• 1994

The energy consumption in apartment houses is investigated according to the heating systems, that is, district, central, and individual heating systems. And, operating conditions of intermittent heating are surveryed and analysed in the central heating systems. As a result, each annual energy consumption of district, central and individual heating system is 143.56 Mcal/m2year, 216.78 Mcal/m2year and 150.68 Mcal/m2year, Also, the heating is generlly started at 04:00 and 17:00 of each day, and the heating system is operated for 2~3 hours per each time.

• 전기의세계
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• v.44 no.1
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• pp.19-24
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• 1995

저자들이 국내 열병합 발전소의 실태와 운전상황을 현지근무를 통해 확인하였고 국내외 자료를 통한 세계적인 추세와 우리나라의 미래지향적 에너지 공급을 염두에 두면서 종합적으로 열병합발저시스템의 한층더 높은 보급확대를 위해 본고에서는 그동안의 현황과 경험을 바탕으로 크게 기술 분야와 환경 분야 그리고 제도 분야에서의 과제를 언급함과 동시에 이에 대한 대안을 제시하고자 한다. 이로서 국내 열병합발전시스템의 성장과 발전에 참고가 될 것을 기대하는 바이다.

• Journal of Korea Port Economic Association
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• v.38 no.2
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• pp.69-80
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• 2022

Road transportation accounts for the largest share of cargo transport in Korea. Inland transportation is not only the beginning and completion point of container transportation, but it is also very complex and has many workers. The main job of container drivers, who play a key role in inland logistics, is to transport containers from ports and terminals to destinations. However, in addition to the main role, various container management obligations, such as cleaning containers and managing damaged containers during the transportation process, are implicitly transferred to container drivers. However, little research has been conducted on this issue. This study identified the working environment of container drivers and empirically analyzed the current status of container management responsibilities by drivers. Furthermore, it analyzed whether there was a difference in the degree of container management requirements by shipping company, terminal, and shipper. Differences in requirements for region(Busan, Kwangyang, Pohang) were analyzed, and improvement measures for the problem of transferring container management were also presented.

• Journal of Energy Engineering
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• v.18 no.4
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• pp.221-229
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• 2009

This study develops the optimized operation program which enables effective and economic operation between individual and connected branch offices by analyzing the current status and influential indicators of district heating companies' capital branch offices. Accordingly, the study examines the efficiency of optimized operation program. In doing so, this study has diagnosed and analyzed various factors, such as boilers, pumps, and relevant tags (temperature, pressure, fuel amount) through investigation of individual branch offices, and finally succeeded in developing wide-ranging data base by factor covering one-year time period. Additionally, after running the optimized operation program, different branch offices, optimum preference has turned out "incinerator receiving heat from KEPCO>CHP >PLBs>PLBw." Meantime, except the connected offices, there has been no big difference between actual and optimum operation program in branch offices. Meanwhile, the integrated optimum operation program has made it possible the most optimal result only via the connecting supply and demand heat without changing received Heat from KEPCO which is the same as total productive heat. The result has showed that the reduction percentage per day is 2.45~6.80%, and the reduction cost per day is 22,727~60,077 thousand won given the randomly selected sample days. In particular, winter time shows the highest demand with the largest reduction cost whereas summer time illustrates the lowest demand with the smallest reduction cost. Given this result, reduction cost per year compared to actual heat production cost for one year theoretically would be 84 hundred million won. Also, the economic effect showed that the reduction cost percentage per year is more than 2.74% on heat production cost per year for all capital branch offices.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.05a
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• pp.668-671
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• 2004

일반적으로 재해는 물적인 원인이나, 인적인 원인 또는 두 원인이 함께 작용하여 발생한다. 농업기계관련 재해의 원인은 기계의 성능뿐만 아니라 그 기계가 얼마만큼 인간이 쾌적하고, 안전하게 운전조작을 할 수 있는가에 대한 문제에도 직접적인 원인이 있는 것이다. 본 연구에서는 현재 우리나라에서의 농업기계로 인한 재해실태 조사와 외국선진사례의 분석을 통해 농업기계 작업의 특성을 파악하고, 인간공학 측면에서 농작업 및 농업기계에 대한 분석을 통해 위험요인을 도출하여, 발견된 문제점에 대한 개선방안을 마련하고자 한다. 또한 현재 농업기계에 의한 재해현황, 농업기계작업에 대한 안전지침, 설계에 대한 인간공학적인 지침 및 농업기계 재해예방을 위한 정책적 개선대안을 제시하였다. 이러한 연구는 작업자의 기술 및 상황판단, 시계성, 차체진동 및 의자진동, 의자설계, 캐핀 배치 및 설계, 안전장치 및 보호 장치, 작업환경 등을 농업기계 제조회사가 고려할 수 있도록 하는데 큰 도움을 줄 수 있으며 기계의 인간공학적 개선을 통해 안전한 운전조작을 가능케 하여 농업관련재해의 감소와 재해의 사전예방에도 크게 기여할 것으로 판단된다.

• Journal of Radiation Protection and Research
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• v.9 no.2
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• pp.118-128
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• 1984

The analysis of radiological protection at Kori Nuclear Unit #1, which started commercial operation on April 29, 1978, has been carried out in three areas, namely, radiation exposure, radioactive waste disposal and environmental management. The analysis results for radiation exposure and radioactive effluent releases appear to increase gradually with plant operating years. On the other hand, the apex of radiation exposure and radioactive effluent releases was in 1983 and 1982 respectively and then decreased or stabilized. Also, the operation environmental radioactivity seems to be no higher than preoperation environmental radioactivity.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.100-102
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• 2015

In recent years, using a smart phone that can access the Internet becomes routine in society through development of information and communication technology. On land, as especially actual accidents and research results show risk that using the smart phone while driving at the same time, and there are traffic laws and regulations that restriction of using of smart phone. But the regulations on the use of smart phones at sea is incomplete state. On this paper. We invested present status of use and reality of smart phone at sea and analyzed the subjective risk for judging to apply to regulation. And we analyzed risk quantitatively by using the simulation experiment; it Suggested a direction of guideline for use of smart phone at sea.

• Journal of Digital Convergence
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• v.11 no.3
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• pp.327-335
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• 2013

Purpose: The purpose of this study was to identify the factors related in an urban resident's drinking state and drinking problem. Methods: The data was collected from Oct. 2008 to Sep. 2009. Data were collected by questionaire from 359 urban resident over 20 years old and drinking experience residing. The instruments for this study were the alcohol use disorder identification test(AUDIT), the related factors of alcohol drinking. The data were analyzed using descriptive statistics, t-test, ANOVA, hierarchical multiple regression with the SPSS 18.0 program. Results: The problem drinking were 35.7% on AUDIT. (a) Male had significant effect on drinking problem; (b) If you drank alcohol for the first time prior to high school graduation had significant effect on drinking problem; (c) Permanent rental or unlicensed residential had significant effect on drinking problem; (d) Experience in drunk driving had significant effect on drinking problem. Conclusion: It is nessary to education at early childhood for the prevention of drinking problems and regular management for high risk.