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한 유럽 시골마을에 세워진 "책의 고성"-벨기에의 '레뒤마을'
신창섭,Sin, Chang-Seop 대한출판문화협회 1994 출판저널 Vol.150 No.-
이 글은 "MBC가이드" 94년 5월호에 게재된 신창섭씨의 현장리포트 "유럽의 책마을 레뒤를 아시나요?"를 전재한 것이다. 한적했던 중부유럽의 한 시골마을이 어떻게 해서 애서가들의 순례지로 각광받게 됐는가를 보여주는 이 글의 전재를 기꺼이 허락해준 "MBC가이드" 측에 감사를 드린다.
신창섭,박호준 한국안전학회 2012 한국안전학회지 Vol.26 No.6
The use of dry chemical powder has been increased as it can be stored for a long period and sustain in stable condition compared to gas or liquid phase extinguishing agents. A new type of dry chemical powder using Zeolite was produced in the research. Chemical powder was adsorbed into Zeolite 13X, a porous material appearing negative catalytic effect, to create extinguishing powder obtaining core shell structure and measured physical properties and run a small scale fire extinguishment. SEM, XRD, TA analysis was also executed, and extinguishing characteristics were measured by fire extinguishing experiment on oil pool fire. The experiment showed that the average particle size of Zeolite 13X was equivalent, indicating about 3±1 μm and thermal analysis result illustrated that Zeolite 13X showed exothermic reaction peaks at 900oC due to solid-state transformation. Extinguishing characteristics on oil fire of NaHCO3/Zeolite 13X and NH4H2PO4/Zeolite were improved, influenced by adsorbed extinguishing powders on Zeolite 13X and Zeolite 13X that contains high phase transition temperature
신창섭,김덕기 한국산업안전학회 1996 한국안전학회지 Vol.11 No.2
To predict the service life of an organic vapor respirator cartridge, the breakthrough curve of respirator was simulated using a fixed-bed adsorption model and compared with that of sampling tube. And the effects of bed porosity, length to diameter ratio and flow rate of the sampling tube were studied. The life time of respirator cartridge was increased with the decrease of particle size and bed porosity. And the breakthrough time of sampling tube was affected by the flow rate, however not by the length to diameter ratio. The 10% breakthrough time of the sampling tube was corresponded with that of cartridge.
작업현장의 환경조건에 따른 방독마스크 정화통의 수명예측(Ⅱ)
신창섭,김기환,김덕기 한국산업안전학회 1996 한국안전학회지 Vol.11 No.4
The breakthrough curves of a sampling tube were studied to predict the service life of a respirator cartridge for organic vapors. The fixed bed adsorption model was applied to respirator cartridge and it's variables were calculated from the experiment of sampling tube. By the experiment and simulation, it was possible to predict the service life of a respirator cartridge, however, not adequate at low CCl₄ concentration less than 700ppm and at high air humidity. The breakthrough curves of sampling tube were irregular compare to that of respirator cartridge due to packing density.
신창섭,김경욱,박진근 한국농업기계학회 2014 바이오시스템공학 Vol.39 No.2
Purpose: The objective of this study was to develop a classification index and the grade levels for a five-grade energyefficiency classification of agricultural dryers in Korea. Methods: The classification index and the grade levels weredetermined by using the performance test data published by the FACT over the last eight years to reflect a state of the arttechnology for agricultural dryers in Korea. The five grades were designed to have the classified dryers distributed normallyover the grades with 15% for the 1st grade, 20% for the 2nd grade, 30% for the 3rd grade, 20% for the 4th grade and 15% forthe 5th grade. Results: The classification index was defined as the total amount of fuel and electrical energy consumed per1% of the wet basis moisture content evaporated from a unit mass of grain or agricultural crops during the drying process: 1MT of paddy rice for grain dryers and 1 kg of red pepper for agricultural crop dryers as the standard mass. Conclusions: Thegrade levels for the five-grade energy efficiency classification of grain dryers, kerosene dryers, and electric dryers wereproposed in terms of the classification index value.
신창섭,장지훈,김영태,김경욱 한국농업기계학회 2013 바이오시스템공학 Vol.38 No.4
Purpose: This study was carried out to develop a classification index and grade levels to rate agricultural heaters for energy efficiency classification. Methods: The classification index was developed mainly by taking simplicity of calculation and easy access to relevant data into consideration. The grade levels were developed on the basis of a 5-grade classification system in which graded heaters are to be normally distributed over the grades. The value of each grade level were determined in terms of the classification index values calculated using the published performance data of agricultural heaters tested at the FACT in Korea over the past 12 years. Results: The thermal efficiency of agricultural heaters based on the enthalpy method was proposed as a reasonable classification index. The grade levels were proposed in equation form for three types of agricultural heaters: fossil fuel heaters, wood pellet heaters and wood pellet boilers. A reasonable energy efficiency classification of agricultural heaters could be performed using the proposed classification index and grade levels. Conclusions: It is expected that energy saving programs will be extended to agricultural machines in the near future. The classification index and grade levels to rate agricultural heaters for energy efficiency classification were developed and proposed for such near future to come.
Energy Efficiency Classification of Agricultural Tractors in Korea
신창섭,김경욱,김관우 한국농업기계학회 2012 바이오시스템공학 Vol.37 No.4
Purpose: This study was conducted to classify the energy efficiency of 131 tractor models tested during from 2006 to 2010in Korea. Methods: Four sub-indexes were developed using the fuel consumptions at 60% and 90% of rated speed with partial loads and at pull speeds of 3.0 km/h and 7.5 km/h with maximum drawbar pull. Weighting factors of the sub-indexes were also considered to reflect the characteristics of tractor’s actual working hours in Korea. Four sub-indexes were integrated into a classification index. Using the developed classification index, a five-classification system was made on the basis of normal distribution of tractors over the classification range. Percentage of 1st grade interval was expected to be close to 15%, 2nd grade 20%, 3rd grade 30%, 4th grade 20%, 5th grade 15%. Results: Number of 1st grade was 21, 2nd grade 23,3rd grade 39, 4th grade 33, 5th grade 15 among 131 models. Conclusions: Classification index was developed by integrating four sub-indexes. By the classification method using developed index, distribution of classified tractors was acceptable for practical application.