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황재익(Hwang Jae Ig),김성렬(Kim Seong Lyeol),김명모(Kim Myeong Mo) 한국지반공학회 2004 한국지반공학회논문집 Vol.20 No.3
Shaking table model tests were performed to reproduce the dynamic behavior of a gravity quay wail and a pile-supported wharf which were damaged during the Kobe earthquake in 1995. The results of the model tests were compared with field measurements and with the results of previous model tests. The displacements of the model quay wall were only one third of that of the prototype, whereas the deformation state of the model was similar to that of the prototype. The displacements of the model pile-supported wharf were about two thirds of that of the prototype and the locations of the maximum moments at the model pile were similar to the buckling locations of the prototype piles.
RTC 와 NTC 혼합트래픽에 있어서의 비동기전송 다중교환기
김성렬 동의공업대학 2000 論文集 Vol.26 No.1
In this paper. ATM Multicast Switch is suggested which puts RTC into R-route and NTC into N-route separately at the same time. It can help to meet the requirement for all communication qualities by assuming the Mixed Traffic as containing all information required for different kinds of communication qualities. The Mixed Traffic is composed of Real-Time Cells that need spontaneity of sounds and Non Real-Time Cells that need accuracy of data rather than spontaneity.
김성렬 동의공업대학 2001 論文集 Vol.27 No.1
The WDM(Wavelength Division Multiplexing) technologies allow multiple lasers carrying independent signals to be transmitted in the same fiber with appropriate spacings of wavelengths between laser carriers. This paper is focuses on a design framework for 0AM(Operation, Administration and Maintenance) on which we can build a reliable photonic network considering WDM technologies. We propose the maintenance actions for the improvement of safety and performance of the optical network management based on the WDM. We introduce system and network surveillance, operation and maintenance functions based on proposed alarm propagation model. For network maintenance, clear maintenance indication such as FDI and BDI is made to facilitate accurate and smooth failure localization. Also, for system maintenance, necessary maintenance items are defined, and a maintenance signal flow is proposed at the level of each optical transport network layer.