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RTP/RTSP 기반 재생기능이 향상된 분산 스트리밍 시스템
이주연 ( Joo-yoen Lee ),김정학 ( Jung-hak Kim ),정재일 ( Jae-il Jung ) 한국정보처리학회 2005 한국정보처리학회 학술대회논문집 Vol.12 No.1
In this paper, we propose the redirect streaming service model to enhance resurgent ability. The system consists of a redirect server, local streaming servers and clients. A redirect server searches the best streaming server. And streaming servers starts a requested service or resumes it when in a trouble. RTSP/RTP is one of the effective solutions to improve QOS in VOD, however a service can be broken off by an overloaded server or network especially in live. We designed and implemented not only a distributed streaming system that solves the broken-off service to enhance a resurgent system, but also DSSP, distributed streaming service protocol, which is adopted to implement this model. Those will improve the performance of streaming service using RTP/RTSP and be contributed to a real time streaming research to solve a service trouble.
고강도강 혼용 사용을 위한 SM570TMC강 보-기둥 접합부의 성능평가 및 해석 비교
김문정 ( Moon Jeong Kim ),조석희 ( Suk Hee Cho ),하태욱 ( Tae Uk Ha ),강창훈 ( Chang Hoon Kang ),최우혁 ( Woo Hyuk Choi ),김정학 ( Jung Hak Kim ) 한국복합신소재구조학회 2013 복합신소재구조학회논문집 Vol.4 No.3
In recent years, the construction of high-rise buildings are promoted. According to these, there are many needs about new technologies to strengthen the building performance and high-strength steel is regarded as one of these for promoting building performance. In Korea, high-strength steels which stress are over 600MPa are on market and in aborad, super high-strength steels over 1000MPa are developing and they expected to promote the building performance. But there are still doubts about applying high-strength steel members because of size effect and worry of brittle fracture. In this reports, we propose results of performance and analysis tests for use with general steel. We propose the characteristic of high-strength steels first and next the results of performance test to show they satisfy the performance that designers expect. And last, we compare the results of test and analysis for acquire the alanysis reliability in non-linear analysis with high-strength steels.