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김봉석(BongSeock Kim),오익수(Ik Soo Oh) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.5
Multi-layered metal sheet for electromagnetic interference(EMI) shielding purpose has been designed using metal sheet stacking technology and an automatic manufacturing system is developed. This metal sheet with multi-layered structure is an effective shield against EMI that can not shield completely by single metal sheet. And the developed automatic manufacturing system can stack thin metal sheets without any wrinkles.
吳益秀 영남이공대학 1980 論文集 Vol.9 No.-
The major point of the Analysis in this paper is following. 1) The absurdity that traffic volume exceeds capacity was found out at signalized intersection. 2) The capacity for a per lane at signalized approach can be calculated by the average headway time in the case that vehicles stand by in a row along the line and in the case that vehicles stand by disordered, the capacity can be estimated by next formula. Capacity=3600X re X V, X W r.-average vehicle density for a per area. average speed at the approach. W=width of the approach. 3) The adjustment factor to capacity for lane width can be obtained from the comparison of the capacities that are calculated by average headway times for several sorts of the lane width. 4) The passenger car equivalent can he obtained from the comparison of the average headway time of the passenger car with that of the vehicle in consideration. 5) The parking effect on the capacity can be computed as follows. Loss in approach width(in meter)v-S GY.Vm Z: clean distance from reference line to parked car(in meter) G: green time(in seconds) Vat: average speed at the approach(m/second) S: the width of the parking place(in meter)
吳益秀,林永吉 嶺南大學校 環境問題硏究所 1984 環境硏究 Vol.4 No.2
This paper study the fitness of the existing vehicular delay models such as fomula(1)~(8), and developed multiple linear regression model as fomula(9) that is more suitable than the exsting models from the observed data.
金大雄,吳益秀 嶺南大學校 工業技術硏究所 1981 연구보고 Vol.9 No.2
The extension of living zone and the increase of production and consumption resulting from the economic growth and the industrial progress lead to rapid motorization. Though the plus effects on the modern society from the motorization are very great, the negative effects, such as the division of community by the street, traffic environmental pollution, traffic accident and such like become serious social problems. The motor vehicle cannot be excluded from daily life owing to the advantage of door to door transportation for all that negative effects. So, the method for minimizing the negative effects is demanded intensively. This paper deals the traffic accident out of negative effects as follows. The situation of traffic accident in the city of Daegu is checked up and analized statistically. And some countermeasures on the traffic accident from aboved results are studied on the branches, such as education, regulation and facility improvement.
吳益秀 嶺南大學校 工業技術硏究所 1983 연구보고 Vol.11 No.1
This study examines the saturation flow volumes and the adjustment factors influenced it with the observed meterials taken from six plane intersections with signal system of Daegu city. The results of analysis is follows; 1. The estimated saturation flow volume is 2,250 (passenger car/hour/through) and 2137(passenger car/hour/left or right turn lane) 2. The inferred passenger car equivalency for large vehicle(truck & bus) is 1.9. 3. The influence of lane width ranged from 2.8 to 3.5 meter and loccation of intersection for saturation flow volume is not found from this study. 4. The loss time for each split is estimated as 4.0 second.
駐車特性 및 駐車場 需要面積에 關한 硏究 : 大邱市 CBD를 中心으로 for the C.B.D. of Daegu
吳益秀 영남이공대학 1978 論文集 Vol.7 No.-
The author has analyzed the distributions of vehicles arriving in unit length. of time and parking duration at a number of parking places in Daegu as basic factors in planning the capacity of parking space and calculated the required parking space by probability theory. The analysis indicates that the distribution of arrivals closely fits the Poisson distribution and that of parking duration of arrivals closely fits the Poisson distribution and that of parking duration the exponential distribution. The parking space required to meet current load in the central business district of Daegu has been estimated 211955 square meters.