http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
한국 건설현장의 인명사고 리스크 정량화 모델 개발기초 연구
오준석 ( Oh June-seok ),이주형 ( Lee Joo-hyeong ),김태희 ( Kim Tae-hee ),손기영 ( Son Ki-young ),손승현 ( Son Seung-hyun ) 한국건축시공학회 2019 한국건축시공학회 학술발표대회 논문집 Vol.19 No.1
Accident rate in domestic construction industry has been increased rapidly in every year. In particular, the rate of death has been shown very high compared with other industries. It means that safety activities performed by government is not effective in reducing the rate of accident. To solve these problems, the risk factors should be predicted in advance, controlled, monitored and managed from start of project to end of project. However, most studies have been conducted by using frequency of occurrence of accident and only listed the importance of risk. Therefore, the objective of this study is to provide basic material to develop risk quantifying model for human accidents on construction site in South Korea. In the future, it is expected to be used as a reference of study on developing safety mangement checklist in construction industry and model for forecasting accident.
건설현장 추락재해 방지를 위한 해외 선진국간의 법령비교연구
오준석 ( Oh June-seok ),이주형 ( Lee Joo-hyeong ),전상섭 ( Jeon Sang-sub ),손기영 ( Son Ki-young ) 한국건축시공학회 2019 한국건축시공학회 학술발표대회 논문집 Vol.19 No.2
Although accidents in the domestic construction industry have been decreased gradually, deaths in the construction sites have been occupied 49.9 percent of the total industry and deaths from fall accident have been accounted for 59.7 percent of the construction industry. In order to prevent fall accident, Occupation Safety and Health Act(OSHA) was enacted for setting management standards and detailed regulations was designed by the Ministry of Employment and Labor. Although government has been pushed for companies and workers to comply the regulations, currently, many domestic construction sites have been violated. On the other hand, in safety-advanced countries such as the United States, Japan, and the EU, industrial accidents have been decreased due to continual application of adapted safety policies according to characteristic in each country. Therefore, it is necessary to analyze laws and polices of advanced countries and apply them to domestic construction sites in order to reduce fall accidents. Therefore, the objective of this study is to compare domestic laws related fall accident with advanced countries laws. In the future, the results of this study will be utilized as a reference to reinforce Occupation Safety and Health Act(OSHA).
사이드 스캔 소나 이미지를 이용한 해양 침적 쓰레기 객체 인식 및 분류 기법
오준석(June Seok Oh),신오순(Oh-Soon Shin) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.2
해양 환경의 오염은 점점 심화되어 가고 이에 따라 안전사고 발생 및 어업의 피해가 증가하고 있다. 해양 쓰레기 중 해양 침적 쓰레기는 수거가 어렵고 객체를 확인하기가 매우 어렵기 때문에 해양 침적 쓰레기의 조사 방법 연구가 필요하다. 본 논문에서는 기존의 4가지의 침적 쓰레기의 조사 방법을 대체할 수 있는 하나의 프로세스를 제안한다.
선택적 환원 촉매(SCR)에서 배출가스 특성에 따른 NO<SUB>x</SUB> 변환효율 및 환원제(NH₃) 분사량 최적화에 관한 실험적 연구
오준석(June-Seok Oh),윤여빈(Yu-Bin Yoon),송춘섭(Chun-Sub Song),박영준(Young-Joon Park),이성욱(Seang-Wock Lee),조용석(Yong-Seok Cho) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
The selective catalytic reduction(SCR) system is potentially a highly-effective means of NOx reduction for diesel engine. Generally, SCR makes use of a reductant added to the exhaust gas that can be used for reacting NO and NO₂ to N₂. The reductant, ammonia(NH₃) generated from a liquid urea-water solution. De-NOx process in the SCR, the ideal ratio of NH₃ molecules to NOx molecules is 1:1 for high efficiency of NOx reduction. The SCR system has good NOx reduction performance in the temperature window of about 250 to 400℃, low space velocity also leads an increase of NOx reduction efficiency, due to long residence time in the catalyst. This paper reviews a laboratory study to evaluate the effects of NOx-NH₃ concentrations, gas temperature and space velocity on the NOx reduction efficiency of the SCR. The maximum reduction efficiency is indicated when the NH₃ to NOx ratio is 1.2 and the space velocity is 30,000 h?¹ in 300℃. However, under various exhaust conditions, NH₃ injection amount need to be controlled for a high NOx conversion efficiency because of reducing unnecessary NH₃ consumption. Based on results of the rig-test, this study suggests the control strategy of NH₃ injection for optimizing NOx reduction efficiency.
이주형 ( Lee Joo-hyeong ),하선근 ( Ha Sun-geun ),나영주 ( Na Young-ju ),오준석 ( Oh June-seok ),손승현 ( Son Seung-hyun ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2
The domestic seismic retrofit guide was primally enacted in 1988, then the mandatory target have been consistently. As a result, the rate of earthquake-resistant is achieved 58.3% in public facilities. On the other hand, the rate of earthquake-resistant is low as 24.8% in education facilities. As education facilities damaged from Gyeong-ju, Po-hang earthquake occurred in South-Korea and the rate of earthquake-resistant is low, the seismic retrofit of existing education facilities got to be ordinary people’s interest. Therefore, domestic researchers have been developed seismic retrofit methods which can apply to existing educational facilities, It is expected to become more active in the future. However, it is insufficient to consideration that how far domestic technology has been developed. Therefore, the objective of this study is to measure the level of domestic research through comparative analysis between domestic and foreign researches that seismic retrofit methods which can apply to existing educational facilities.