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고승일,고성택,김경식,김경연,최영복 濟州大學校 産業技術硏究所 1998 산업기술연구소논문집 Vol.9 No.2
ATM(asynchronous transfer mode) is able to realize the full integration of various kinds of services. Effective bandwidth allocations using statistical multiplexing gain have been studied for the full integration of different kinds of services. In this paper. we present call admission control algorithm using complete bandwidth sharing and reserved bandwidth sharing. Complete bandwidth sharing is an efficient way for utilization of bandwidth. Reserved bandwidth sharing is an efficient way for preventing reverse pecking order. Using these two bandwidth allocations is an effective way for bandwidth utilization and stopping reverse pecking order. A computer simulation shows the results of the algorithm
고성택,김경식,김경연,최영복,고승일 濟州大學校工科大學産業技術硏究所 1998 尖端技術硏究所論文集 Vol.9 No.2
ATM(asynchronous transfer mode) is able to realize the full integration of various kinds of services. Effective bandwidth allocations using statistical multiplexing gain haute been studied for the full integration of different kinds of services. In this paper. we present call admission control algorithm using complete bandwidth sharing and reserved bandwidth sharing. Complete bandwidth sharing is an efficient way for utilization of bandwidth. Reserved bandwidth sharing is an efficient way for preventing reverse pecking order. Using these two bandwidth allocations is an effective way for bandwidth utilization and stopping reverse pecking order. A computer simulation shows the results of the algorithm.
인터넷 쇼핑 웹 사이트의 디자인 비교연구 : 의류 쇼핑 사이트 사례 중심으로 Case study of the fashion sites
고은주,목보경 창원대학교 생활과학연구소 1999 생활과학연구 Vol.3 No.-
The purpose of this study were 1) to find the present condition of clothing shopping web site. 2) to analyze web design elements, and 3)to propose the problem and improvement, so meaning to prepare basis for effective web site design and analysis method of web site design. Subject for this study were 3 shopping web site(Fashionpia. Hansol CS Club, James Dean). The result of study were as follows. 1. Text form is not convenient of shopping process more than catalog form. 2. Fashionpla and Hansol CS Club sites are lack of pleasure and entertainment elements. 3. Display were not differentiated image and characters of product and brand were not provided well.
Piezocone과 Rowe Cell을 利用한 水平壓密係數 推定
권기복,류권일,고영헌,김팔규 忠南大學校 産業技術硏究所 2002 산업기술연구논문집 Vol.17 No.1
Site characterization is one of the most important performances in projects with regard to solving geotechnical problems. Piezocone penetration test is a fast, economic, and accurate method of site characterization. Static cone penetrometer and the piezocone represents the most versatile tools currently available for soil exploration. The cone penetration and piezocone tests provide continuous sounding capability and repeatability. Rare of consolidation parameter may be assessed form the Piezocone test by measuring the dissipation or decay of pore pressure with time after a stop in penetration. And many researches have been developed to determine the horizontal coefficent of consolidation from the Piezocone test. Many of these researches using a theoretical solutions which is determined from either the cavity expantion theory or the stress path method. However, depending on assumptions and analytical techniques, the results can be varied considerably. For that reason, many researchers make their effort to improve and complement the defect of already established methods. In this dissertation, the correlation between the Coefficient of Consolidation from Piezocone dissipation test and the Coefficient of Consolidation Rowe Cell horizontal consolidation test in many cases was studied. The purpose of this study is to know the changing of the Coefficient of Consolidation by loading condition while Rowe Cell horizontal consolidation test is used
최영복,고성택,김경연,김경식 濟州大學校 工科大學 産業技術硏究所 1997 尖端技術硏究所論文集 Vol.8 No.2
The B-ISDN(Broadband-Integrated Service Digital Network) transports various multimedia information effectively. So optical switching networks which consist of optical transmission links and photonic switching systems are noticeable as a way of a large capacity communication. In this paper, we propose optical packet switching networks which will be used as the backbone network of national high speed communication networks which are operated a way of ATM(Asynchronous Transfer Mode). The B-ISDN transport networks are composed of two-layered networks such as regional networks and a backbone network. The regional network is an average ATM transport network. The optical backbone network gathers fixed length of several ATM cells which come from regional networks, attaches an optical header, and completes an optical packet. And then the network switches and transports with high speed. That is, the backbone network is a transparent optical packet network. The passing speed of signal in the photonic switch is rapid, but the switching speed is limited and the processing speed of the switching controller which consists of electronic circuit is limited. So the optical packet which consists of multi-ATM cells is able to overcome it in the optical backbone network. The performance evaluation by the computer simulation shows us the efficiency of the proposed way of optical packet switching.
최영복,김경연,고성택,김경식 濟州大學校 産業技術硏究所 1997 산업기술연구소논문집 Vol.8 No.2
The B-ISDN(Broadband-Integrated Service Digital Network) transports various multimedia information effectively. So optical switching networks which consist of optical transmission links and photonic switching systems are noticeable as a way of a large capacity communication. In this paper. we propose optical packet switching networks which will be used as the backbone network of national high speed communication networks which are operated a way of ATM (Asynchronous Transfer Mode). The B-ISDN transport networks are composed of two-layered networks such as regional networks and a backbone network. The regional network is a n average ATM transport network. The optical backbone network gathers fixed length of several AThI cells which come from regional networks. attaches an optical header. and completes an optical packet, And then the network switches and transports with high speed. That is. the backbone network is a transparent optical packet network. The passing speed of signal in the photonic switch is rapid, but the switching speed is limited and the processing speed of the switching controller which consists of electronic circuit is limited. So the optical packet which consists of multi-ATM cells is able to overcome it in the optical backbone network. The performance evaluation by the computer simulation shows us the efficiency of the proposed way of optical packet switching.
김수복,고정문,홍순상,주덕현,홍윤기,김진성,김영규 용인대학교 자연과학연구소 2011 自然科學硏究所論文誌 Vol.16 No.1
The aim of this study was to research water quality, eco-nature and firefly habitant Keung An Stream from June to July. To conserve ecosystem of firefly habitant, We must manage to have a diverse aspect of ecology and water quality. This study was to research water quality, eco-nature and firefly habitant Keung We find 11 firefly habitat in Keung An Stream. To conserve ecosystem of firefly habitant, We must manage to have a diverse aspect of ecology and water quality.