• Title/Summary/Keyword: Triple Play

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액세스 스위치단에서의 Triple Play Service 를 위한 멀티캐스팅 라우팅과 QoS 기능 구현에 관한 연구

  • Lee, Jeoung-Ok;Choi, Jee-Yeoun;Beom, Soon-Kyun
    • 한국정보통신설비학회:학술대회논문집
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    • 2007.08a
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    • pp.92-99
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    • 2007
  • 현재 통신 시장은 보다 편리하고 다양한 서비스를 찾는 소비자의 욕구와 맞물려 TPS(Triple Play Service) 방향으로 급속히 나아가고 있다. 인터넷 전화의 보급은 이미 보편적 서비스가 된 초고속인터넷 서비스와 연계하여 빠르게 확산되고 있으며, 2007년 들어 방송서비스까지 결합한 TPS에 대한 통신사업자간 경쟁이 본격화되고 있는 추세이다. 트리플 플레이 서비스(Triple Play Service;이하 TPS)는 초고속 인터넷과 인터넷 전화와 방송 서비스를 하나의 회선으로 제공하는 종합 인터넷 서비스로, 광대역 통합망(BcN; Broadband Convergence Network)의 핵심 서비스이다. 액세스 스위치(Access Switch) 단은 TPS로 인해 더욱 많은 역할을 담당할 것으로 전망되는데, 디지털 방송을 인터넷 프로토콜을 통해 전송하기 위한 멀티캐스트 기능과 혼재된 이종간의 디지털 신호를 각 서비스의 품질에 맞게 보장해 주는 QoS(Quality of Service) 기능이 무엇보다 중요하게 고려 되어야 한다. 본 논문에서는 TPS의 핵심일 수 있는 방송 서비스를 위해 액세스 스위치 단에서 제공해야 할 멀티캐스트와 QoS 기능 구현 방안에 대해 제시한다

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Research on the Technical Policy of China Telecom Development

  • Kong, Guo-Qiang
    • Proceedings of the Korea Technology Innovation Society Conference
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    • 2006.11a
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    • pp.77-80
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    • 2006
  • Focusing on the telecom development scale and science & technology development goal, this paper analyzes and discusses some technical policies, such as NGN, 3G, Triple Play and others that China telecom will stress in the future.

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QoS control function for Triple Play Service based on E-PON (E-PON기반 Triple Play Service를 위한 QoS 제어 기능)

  • Park, Chun-Kwan;Song, Han-Young;Jeon, Byung-Chun
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.44 no.3 s.357
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    • pp.68-77
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    • 2007
  • In this paper, we address TPS (Triple Play Service) based on E-PON and also develop QoS control function for both directions, which is disadvantage of E-PON. E-PON technology has the configuration suitable for TPS, but relatively the large delay characteristics in upstream, so if QoS control function must be supported to transfer the real time traffic for both directions, E-PON technology can support TPS efficiently. Therefore, in this paper, we address the diverse requirements of quality for TPS, and then develop TPS platform to verify the quality characteristics according to QoS characteristics of each element in real environment based on this. This result will be used to improve the quality of TPS that become conventional in near future. ISP will use this result as the basis in establishing quality reference and as the guidance in developing new system.

Extended Type of Symptom Discrimination for Triple Energizers (三焦) in Song (宋), Jin (金) and Yuan (元) Dynasty (송(宋)·금(金)·원(元) 시대 광의의 삼초변증(三焦辨證))

  • Jo, Hak-Jun
    • The Journal of Korean Medical History
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    • v.28 no.1
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    • pp.61-79
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    • 2015
  • Objectives : In order to prove the extended type of symptom discrimination for triple energizers in Song, Jin and Yuan Dynasty. Methods : Extract the topic-related contents from the books, with key words, triple energizers. After arraying them from this sources according to time order, analyze the data. Results : Analyzing its history from symptom, prescription, and discrimination proved the fact that the extended type of symptom discrimination for triple energizers had been developed continually, and assured that it did not play an important role in forming the narrow type of its symptom discrimination for Wen Bing (溫病) in Qing (淸) Dynasty, but also had been advanced separately from its type for Wen Bing. Conclusions : Symptom discrimination for triple energizers in Song, Jin and Yuan Dynasty gradually went far to become its extended type which widely used for Za Bing (雜病), Wen Bing, and diseases for pediatrics and dermatology.

Bandwidth Dimensioning for High-Speed Internet Access Networks (초고속인터넷 가입자망의 대역설계)

  • Lee, Tae-Joon;Lee, Hoon
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.12B
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    • pp.1017-1027
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    • 2006
  • Recently, Internet service providers are offering triple play service which combines voice and video services with the existing high speed Internet service under the common network infrastructure of IP protocol, so that they can create more benefit from operating a single network architecture. In line with this movement in the convergence of network and services, in this work we propose a bandwidth dimensioning method for the subscriber network of the IP network at flow level. To that purpose, let us propose a series of bandwidth dimensioning methods: bandwidth for best effort service only, bandwidth dimensioning for premium services, and bandwidth dimensioning schemes for the premium Internet services as well as the best effort service which comprise the TPS. Our link dimensioning method is based on the flow level that incorporates the flow blocking probability as a measure of grade of services(GoS), and investigates the characteristics of the proposed methods via extensive numerical experiments. After that, let us carry out a simulation experiment concerning the delay and loss performance of the packet scheduling for the premium services (QoS) using the bandwidth designed by our proposed method, via which the packet level quality of service (QoS) for the proposed link dimensioning method can be observed.

IPTV Service Provider over FTTH (광가입자망을 통한 IPTV 서비스 제공)

  • Park In-Gyu
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.43 no.5 s.347
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    • pp.7-16
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    • 2006
  • IPTV is referred to the service which provide integrated IPTV services for providing video, 10/100-Mbit/sec Internet, voice, video-on-demand (VOD), and other broadband applications including home security, video conferencing, and telemedicine. All services are integrated into an IP (Internet Protocol) architecture designed specifically for Gigabit Ethernet FTTH systems, HFC or xDLC. It is absolutely necessary that telecon operators provide IP video delivery platforms that enable service providers to transform their business. With their own products, they can better manage their existing services and generate new revenues from broadcast TV, movies on demand and multimedia. Triple-play is a combination of broadcast, telephony and broadband services offered through IPTV networks. With cable operators allowed to offer a triple-play bundle, the nation's telecom operators are beginning to get a little anxious. Cable operators assert that triple-play is a must-have and natural extension of the cable service bundle. The Korean Cable TV Association asserts that the triple-play model is of paramount importance to the cable industry's future growth. But the telecom sector considers itself unfairly disadvantaged, saying they cannot compete until regulatory issues are resolved. The start of web-based television in Korea may still be some time off with a confrontation between the nation's IT regulator and broadcasting sector over the service's legal boundaries shows no signs of being resolved my time soon. korea should be is the fastest-growing provider of IPTV solutions in the industry, with over worldwide customers.

ER81-shRNA Inhibits Growth of Triple-negative Human Breast Cancer Cell Line MDA-MB-231 In Vivo and in Vitro

  • Chen, Yue;Zou, Hong;Yang, Li-Ying;Li, Yuan;Wang, Li;Hao, Yan;Yang, Ju-Lun
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.5
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    • pp.2385-2392
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    • 2012
  • The lack of effective treatment targets for triple-negative breast cancers make them unfitted for endocrine or HER2 targeted therapy, and their prognosis is poor. Transcription factor ER81, a downstream gene of the HER2, is highly expressed in breast cancer lines, breast atypical hyperplasia and primary breast cancers including triple-negative examples. However, whether and how ER81 affects breast cancer carcinogenesis have remained elusive. We here assessed influence on a triple-negative cell line. ER81-shRNA was employed to silence ER81 expression in the MDA-MB-231 cell line, and MTT, colony-forming assays, and flow cytometry were used to detect cell proliferation, colony-forming capability, cell cycle distribution, and cell apoptosis in vitro. MDA-MB-231 cells stably transfected with ER81-shRNA were inoculated into nude mice, and growth inhibition of the cells was observed in vivo. We found that ER81 mRNA and protein expression in MDA-MB-231 cells was noticeably reduced by ER81-shRNA, and that cell proliferation and clonality were decreased significantly. ER81-shRNA further increased cell apoptosis and the residence time in $G_0/G_1$ phase, while delaying tumor-formation and growth rate in nude mice. It is concluded that ER81 may play an important role in the progression of breast cancer and may be a potentially valuable target for therapy, especially for triple negative breast cancer.

Triple Helix of University-Industry-Government Relations in Biotechnology Cluster: the Case of Singapore (바이오 클러스터에서의 트리플 힐릭스 관계 연구: 싱가포르 사례를 중심으로)

  • Nam, Jae-Geol
    • Journal of the Economic Geographical Society of Korea
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    • v.17 no.4
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    • pp.801-816
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    • 2014
  • This paper is a theoretically grounded empirical study aimed at shedding light on the Triple Helix of University-Industry-Government (U-I-G) relations in biotechnology cluster of Singapore. It questions the issue about the gap between theoretical consideration of the Triple Helix of U-I-G relations and the actual reality in biotechnology cluster, and the experience of Singapore was investigated. In terms of evolutionary perspective, biotechnology cluster in Singapore has gone through ongoing processes from a certain stage to other, and within the processes the Triple Helix nexus has been found. Analysis of the empirical study reveals significant findings: first, the government policies play a critical role in the operation of U-I-G relations rather than universities; second, therefore, the binding force of U-I-G relationships is based on the government policies being comprehensive including researchers immigration, student scholarship for local students, and tax and non-tax incentives for firms, rather than focusing on a targeted policy; third, the role of government starts from an initial stage, and it's role is ongoing processes by supporting infrastructure, human sources and continuous nourishment enabling the triple helix of U-I-G relations.

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