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이인현 한국초지조사료학회 1998 한국초지조사료학회 학술대회논문집 Vol.1998 No.1
최근 일련의 IMF사태로 인하여 사료 값 폭등과 유가공 제품의 소비감소로 유업체 경영 악화에 따른 축산 농가의 경영 압박으로 모든 축산인들이 큰 고통을 겪고 있다. 이에 따라 조사료 생산의 선진 기계화는 사료의 생산비 절감은 물론 가축의 생산성 향상에 가장 큰 영향을 줄 수 있다. 위와 같이 기계화를 추진중인 축산단지 또는 협업체 축산농가에 추천 작업기종을 선정하였으나, 작업 환경과 자급의 소요 등을 무시한 무조건적인 대형 작업기 선호는 결코 바람직하지
이인현,장원,백영,도갑수,최재규 한국환경과학회 1997 한국환경과학회지 Vol.6 No.6
In order to analyze the water quality variation of surface water around the Sudokwon landfill site, seasonal variations of water temperature, pH, DO, BOD, COD, SS, NH_3-N. NO_2-N, and NO_3-N were examined at 10 sites from January to December, 1996. It was found that the estimates of COD, DO, SS, and NH_3-N were increased compared with the results of environmental impact assessment carried out in 1988. Higher estimates of COD, DO, and SS were due to industrial and agricultural wastewater, and the increase of NH_3-N at Jangdo reservoir site was due to the leachate from the landfill. In particular, the estimate of SS was found to be increased by the soil wash from the landfill during the heavy rainy days.
이인현(In-Hyun Lee),김대현(Dae-Hyun Kim),김민호(Min-Ho Kim),서정욱(Jung-Wook Seo),김두일(Du-Ill Kim),정호형(Ho-Hung Jung) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
This paper investigates the current established preventive maintenance and its corresponding data on a point machine among railway signalling facilities and suggests a part of considerable plans when the policy of the preventive maintenance is modified. It is not appropriated to apply the optimized preventive replacement period considered with the cost simply. In that case, it is suggested that the reliability should be analyzed failure mode and effects through collecting the on-site failure data sufficiently. Then, that result can be proposed to adjust the proper criteria into the rational way by comparing the initial maintenance criteria. In this paper, the alternative way to determine the feasibility of the inspection period using failure probability is introduced.