• Title/Summary/Keyword: 연결

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A QoS-based Hierarchical Routing Algotihm for TINA-based Connection Management (TINA 체계의 연결관리를 위한 QoS 기반의 계층적 경로 설정 기법)

  • 서승호
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.25 no.10B
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    • pp.1690-1700
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    • 2000
  • Connection management function of the TINA which is developed by TINA-C provides network connection services such as setup modification and release of connections. The connection management function provides these services to network operators to the fault management function that provides backup-path and to the performance management function that provides load-balancing. The connection management function necessarily requires a routing algorithm to set up a new connection. In this paper we propose a new routing algorithm named QTHR (QoS and Traffic parameter based Hierarchical Routing) for TINA based connection management of ATM/B-ISDN network. And we implemented the QTHR and analyzed the performance of the QTHR.

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Matrix-Star Graphs : A New Interconnection Network Based on Matrix Operation (행렬-스타그래프 : 행렬연산에 기반한 새로운 상호 연결망)

  • Lee, Hyeong-Ok;Im, Hyeong-Seok
    • Journal of KIISE:Computer Systems and Theory
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    • v.26 no.4
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    • pp.389-405
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    • 1999
  • 본 논문에서는 상호 연결망의 노드를 행렬로 표현하고 행렬연산을 이용하여 에지를 정의한 새로운 상호 연결망으로 행렬-스타 그래프를 제안한다. 행렬-스타 그래프는 널리 알려진 스타 그래프를 일반화한 그래프이다. 먼저, 행렬-스타 그래프의 노드를 2 $\times$ n 행렬로 표현한 행렬-스타 그래프 MS2,n 에 대하여 주요 망 척도인 분지수, 연결도, 확장성, 대칭성, 리우팅 ,지름 방송등을 분석한다. 다음으로, 행렬-스타 그래프 MS2,n의 노드를 2차원과 3차원으로 일반화한 행렬-스타 그래크 MSk,n과 MS k,n,p를 정의하고 행렬-스타그래프 MSk,n,p 의 라우팅 알고리즘과 지름을 분석한다. 상호연결망의 중요 망 척도중 하나는 망 비용이고 상호연결망의 망 비용은 그 연결망의 분지수와 지름의 곱으로 정의된다. star 그래프는 다른 상호 연결망보다 작은 망 비용을 갖는다. 최근에 제안된 Macro-Star 그래픈 star 그래프에 비해 상대적으로 망 비용이 작은 값을 갖는 연결망이다. (n2)!개의 노드를 갖는 행렬-스타 그래프 MSk,k,k(k={{{{ `^{ 3} SQRT { n$^2$} }}}} )와 ((n-1)2 + 1)!개의 노드를 갖는 Macro-Star 그래프 MS(n-1, n-1)의 망 비용은 행렬-스타그래프 MSk,k,k(k={{{{ `^{ 3} SQRT { n$^2$} }}}})는 O(n2,7)이고, Macro-Star 그래프 MS(n-1 , n-1)은 O(n3) 이다. 이는 행렬-스타 그래프가 스타 그래프와 Macro-Star 그래프보다 망비용이 우수함을 의미한다.

Evaluation of the Degrees of Genetic Connectedness Among Duroc Breed Herds (국내 두록종 농장간 유전적 연결성 추정)

  • Cho, Chungil;Choi, Jaekwan;Park, Byoungho;Kim, Sidong;Kwon, Ohsub;Choi, Youlim;Choy, Yunho
    • Journal of Animal Science and Technology
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    • v.54 no.5
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    • pp.337-340
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    • 2012
  • The genetic connectedness between herds is an essential requirement to make robust across-herd estimation of the breeding values of the animals. In this study, genetic connectedness between herds was evaluated by a connectedness rating method. A total of 24,971 records of days to 90 kg (D90KG) of the pigs on performance testing programs collected from six herds (labeled from 'A' to 'F') of Duroc breed along with pedigree information comprising 456,697 families were used. Results showed that a total of eight boars were used for semen exchange programs among participant farms. Herds 'A' through 'E' were found strongly connected among them. But 'F' herd was genetically connected strongly only with 'A' herd. The highest average connectedness rating was 91.7% between 'A' herd and 'C' herd. The lowest average connectedness rating was 65.1% between 'D' and 'F'. The concept of a single genetic group comprising six Duroc herds studied is meaningful due to high connectedness rates among them. Therefore, with this high genetic ties between participant Duroc farms, the more accurate genetic evaluation would be possible.

Numerical Analysis on the Structure Behavior of the Connected Long-span Beam during Excavation in Narrow Streets (도로 폭이 좁은 굴착공사에서 연결부가 적용되는 장지간 주형의 수치해석적 거동 평가)

  • Choi, Kwang-Sou;Ha, Sang-Bong;Lee, Hwan-Woo
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.33 no.4
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    • pp.263-270
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    • 2020
  • This study evaluates the structural behavior of connected long-span beams applied for excavation in urban areas with a narrow street. Generally, the reliability of the connection is reduced owing to the defect of the upper flange in the connection. An improved connection part was developed to complement the defects in the connected long-span beam. A finite element analysis based on a commercial program, ABAQUS, was employed to evaluate the behavior of the improved connection part. A numerical analysis model was proposed to analyze the high-strength bolt connection and the composite behavior of steel and concrete applied to the improved connection. The suitability of the proposed numerical analysis was verified by comparing the experimental and numerical analysis results of the references. Using the proposed numerical analysis method, the improved and general connections were analyzed and compared with each other. The stress distribution and elastic-plastic behavior of the long-span beam were analyzed numerically. The analysis confirmed that 25% of the compressive stress was improved, resulting in the improvement of structural safety and performance.

Methodology for Designing Inter-device Connectivity by Classifying User Experience Step (사용자 경험단계의 분류를 통한 기기간 연결성디자인 방법론)

  • Hong, Sung-Soo;Yoo, Soung-Min;Ahn, Hyo-In;Ko, Chang-Suk
    • 한국HCI학회:학술대회논문집
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    • 2008.02b
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    • pp.456-459
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    • 2008
  • We are now in the era of digital convergence with CE products and PC at the center, but product diversification occurs in the same breath. Each device may perform its own functions itself independently, but proportion of the inter-device usage is increasing gradually by concept of a home network and ubiquitous widely prevailed. The consumer's need of inter-device connection will take the dominative position of the market. Therefore, we can easily forecast that diversification of the products may inevitably lead connectivity patterns complicated considering recent market situation and trends. In this paper, we propose the methodology for designing inter-device connectivity which covers issues such like segmenting numerous number of connectivity pattern, and establishing their structure of control. Our methodology also supports the inter-device connection with extensive latitudes and a multi-device simultaneous control. In order to present inter-device connectivity guideline, we define four stages of a user experience - Connection, Configuration, Use, Disconnection. Based on the 4 user experience stages, we suggest a specific connectivity designing guideline for each step.

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Embedding Algorithm among Folded Hypercube, Even Network and Odd Network (폴디드 하이퍼큐브와 이븐연결망, 오드연결망 사이의 임베딩 알고리즘)

  • Kim, Jong-Seok;Sim, Hyun;Lee, Hyeong-Ok
    • Journal of KIISE:Computer Systems and Theory
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    • v.35 no.7
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    • pp.318-326
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    • 2008
  • In this paper, we will analyze embedding among Folded Hypercube, Even Network and Odd Network to further improve the network cost of Hypercube. We will show Folded Hypercube $FQ_n$ can be embedded into Even Network $E_{n-1}$ with dilation 2, congestion 1 and Even Network $E_d$ can be embedded into Folded Hypercube $FQ_{2d-3}$ with dilation 1. Also, we will prove Folded Hypercube $FQ_n$ can be embedded into Odd Network $O_{n-1}$ with dilation 2, congestion 1 and Odd Network $O_d$ can be embedded into Folded Hypercube $FQ_{2d-3}$ with dilation 2, congestion 1. Finally, we will show Even Network $E_d$ can be embedded into Odd Network $O_d$ with dilation 2, congestion 1 and Odd Network $O_d$ can be embedded into Folded Hypercube $E_{d-1}$ with dilation 2, congestion 1.

The Connection between the Last Panel of 1st Episode And the First One of 2nd on 'Webtoon' (웹툰에서 1화 마지막 칸과 2화 첫 칸의 연결 관계)

  • Yi, Won-Suk
    • Cartoon and Animation Studies
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    • s.43
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    • pp.211-230
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    • 2016
  • First this research starts with agreement that comics is 'the sequential art'. It means that over two sequential panels makes how to recognize the story and this research owes to the connection of forward panel and backward panel. Webtoon, internet comics is also consisted to sequential panels. But only it is different with the publish comics by direction, shape, length and so on. So this research tries to make point of the connection between first panel and second panel. Especially it researches what types of connections between the last panel of first episode and the first panel of second one beyond the connections of panels at only episode. This research treats the types of gutter, 'connection' means to continue the same scenes or 'separation' does to devide the story and shows the new scenes. Weekly webtoon must have a kind of break time. The first panel of next episode should remind of the former story, it means easy technique. Otherwise some first panel don't show the same scenes or story so this study researches 130 artworks from the portal sites; Naver, Daum, mobile comics platform; Lezhin Comics and Toptoon, Corea.

Finite Element Analysis for Transmission Tower Behavior Characteristic by Connection Beam Stiffness (수치해석을 이용한 송전철탑 연결형 기초의 연결보 강성에 따른 거동 특성)

  • Choi, YoungHo;Kyung, DooHyun;Lee, JunHwan
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.33 no.1
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    • pp.219-227
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    • 2013
  • This study analyzed the effect of performance connected-type foundations of behavior and the connected beams according to the characteristics into soft clay transmission tower foundation. For this purpose, the finite element analysis model was built and connected to the transmission tower foundation mat and the contact area of the connection beam by the percentage change in the behavior and resistance characteristics were analyzed and finite element verification of the validity of the analytical model was conducted using connected-type transmission tower results of the model experiments constructed, and effective connected-type transmission tower basis of the behavior of connected beams were selected by analyzing the effect due to the increase of the stiffness. In addition, weak analysis by connected beam self-bending moment distribution was conducted.

An Experimental Study of Buckling Behavior in Built-up Compression Member with Unsymmetric Connectors II - Effect of Type of Connection Members - (비대칭 연결재를 갖는 조립식 압축부재의 좌굴 거동에 관한 실험 연구 II - 연결재 종류의 영향 -)

  • Kang, Sanghoon;Han, Manyop;Cho, Byeongdu
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.32 no.4A
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    • pp.217-225
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    • 2012
  • Structural behavior of built-up compression members with unsymmetric connectors under buckling status has been studied through these experiments. When the distance between adjacent H-300 beams of built-up compression member is 2 m in length, and the H-300 beams are lengthened up to 30 m in length with three-10 m-H-beams by bolts and double arrayed, three specimen having each connector plate, single channel, double channel are experimented for evaluating buckling loads. The buckling loads from the experiments are compared with buckling loads of structural analysis using FEM and buckling loads of Timoshenko Eq. in order to figure out how the connectors' type affects on longitudinal and lateral displacements, also strain of the built-up compression members as well. The result from the experiments show that the buckling loads 4.2% decreases in double channel connectors and 36.6% decreases in single channel connectors than plate connectors.

Effect of Reinforcement Layout on Structural Performance of Reinforced Concrete Coupling Beams with High-strength Steel Bar (철근상세에 따른 고강도 철근이 사용된 철근콘크리트 연결보의 구조성능)

  • Jang, Seok-Joon;Jeong, Gwon-Young;Kim, Sun-Woo;Yun, Hyun-Do;Chun, Young-Soo
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.21 no.2
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    • pp.95-102
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    • 2017
  • This paper describes the experimental results for the structural performance of full-scale coupling beams with different reinforcement layout (diagonal and horizontal). For the reinforcements of the coupling beams, high-strength steel bars(SD500 and SD600) were used in order to improve workability and economic feasibility. The rigid steel frames and linked joints were used to maintain the clear span length (distance between both shear walls) of the coupling beam during the cyclic loading. Experimental results indicated that the diagonally reinforced coupling beam specimen could exhibit more ductile behavior compared to horizontally reinforced specimen. ACI318-14 code is applicable to design of coupling beam with diagonally reinforcement, however, that is overestimating the strength of horizontally reinforced coupling beam. It is remarkable that effective elastic stiffness values of both reinforcement details coupling beam significantly lees than ASCE 41-13.