• Title/Summary/Keyword: Connection-Function

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Method of network connection management in module based personal robot for fault-tolerant (모듈기반 퍼스널 로봇의 결함 허용 지원을 위한 네트워크 연결 유지 관리 기법)

  • Choi, Dong-Hee;Park, Hong-Seong
    • Proceedings of the KIEE Conference
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    • 2006.04a
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    • pp.300-302
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    • 2006
  • Middleware offers function that user application program can transmit data independently of network device. Connection management about network connection of module is important for normal service of module base personal robot. Unpredictable network disconnection is influenced to whole robot performance in module base personal robot. For this, Middleware must be offer two important function. The first is function of error detection and reporting about abnormal network disconnection. Therefore, middleware need method for network error detection and module management to consider special quality that each network device has. The second is the function recovering that makes the regular service possible. When the module closed from connection reconnects, as this service reports connection state of the corresponding module, the personal robot resumes the existing service. In this paper proposed method of network connection management for to support fault tolerant about network error of network module based personal robot.

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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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A Study on the Native Function Connection Technique for the Virtual Machines (가상기계를 위한 네이티브 함수 연결 기법에 관한 연구)

  • Man, Ko-Kwang
    • The KIPS Transactions:PartA
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    • v.12A no.5 s.95
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    • pp.333-340
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    • 2005
  • This paper presents of the native function connection technique for the embedded virtual machines, base on the native function connection methods of the virtual machines such as W, WabaVM. For this goals, we designs the adapter model and then implements the new native function table for the native function connection. And we presents the variety experiment and analysis results using the implemented technique.

Optimal Connection Algorithm of Two Kinds of Parts to Pairs using Hopfield Network (Hopfield Network를 이용한 이종 부품 결합의 최적화 알고리즘)

  • 오제휘;차영엽;고경용
    • Journal of Institute of Control, Robotics and Systems
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    • v.5 no.2
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    • pp.174-179
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    • 1999
  • In this paper, we propose an optimal algorithm for finding the shortest connection of two kinds of parts to pairs. If total part numbers are of size N, then there are order 2ㆍ(N/2)$^{N}$ possible solutions, of which we want the one that minimizes the energy function. The appropriate dynamic rule and parameters used in network are proposed by a new energy function which is minimized when 3-constraints are satisfied. This dynamic nile has three important parameters, an enhancement variable connected to pairs, a normalized distance term and a time variable. The enhancement variable connected to pairs have to a perfect connection of two kinds of parts to pairs. The normalized distance term get rids of a unstable states caused by the change of total part numbers. And the time variable removes the un-optimal connection in the case of distance constraint and the wrong or not connection of two kinds of parts to pairs. First of all, we review the theoretical basis for Hopfield model and present a new energy function. Then, the connection matrix and the offset bias created by a new energy function and used in dynamic nile are shown. Finally, we show examples through computer simulation with 20, 30 and 40 parts and discuss the stability and feasibility of the resultant solutions for the proposed connection algorithm.m.

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A Study on the Library Linking of a Virtual Machine for Embedded System (임 베디드 시스뎀을 위한 가상기계의 라이브러리 링킹에 관한 연구)

  • Ko, Kwang-Man
    • Journal of the Korea Computer Industry Society
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    • v.5 no.9
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    • pp.965-972
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    • 2004
  • This Paper presents the experiences of the static and dynamic library function connection technique for the embedded virtual machines, base on the native function connection methods of the virtual machines such as KVM, Waba VM. For this goals, we implements the new native function table for the static and dynamic library function connection technique base on the native function connection methods of the virtual machines such as KVM, Waba VM. And we presents the variety experiment and analysis results using the implemented technique.

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The induced and intrinsic connections of cartan type in a Finslerian hypersurface

  • Park, Hong-Suh;Park, Ha-Yong
    • Communications of the Korean Mathematical Society
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    • v.11 no.2
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    • pp.423-443
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    • 1996
  • The main purposer of the present paper is to derive the induced (Finsler) connections on the hypersurface from the Finsler connections of Cartan type (a Wagner, Miron, Cartan C- and Cartan Y- connection) of a Finsler space and to seek the necessary and sufficient conditions that the induced connections coincide with the intrinsic connections. And we show the differences of quantities with respect to the respective a connections and an induced Cartan connection. Finally we show some examples.

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Selection of Connection Position to Change Dynamic Characteristic of Structure (동특성 변경을 위한 구조물의 결합 위치 선정)

  • Kim, Kyung-Won;Park, Youn-Sik;Kim, Sung-Hoon;Kim, Jin-Hee;Rhee, Ju-Hun;Hwang, Do-Soon
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.13 no.12
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    • pp.930-937
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    • 2003
  • This research deals with how to select connection positions of two substructures to be synthesized. The goal of this research is to find optimal connection positions in order to maximize the fundamental natural frequency of the synthesized structure. The natural frequencies of a connected structure are obtained by modal-force equations. Optimal connection positions can be selected through optimization process. In the optimization process, the natural frequencies of a connected structure are set to object function value and connection positions become design variables. The method described above is applied to synthesis problems of plates, which is initially conducted for FE models and verified through experiments. Especially in experiments. FRF(frequency response function) s are obtained by means of the Modal Testing technique to be used in modal-force equations for synthesizing. Once the substructures are synthesized. the Modal Testing technique is again applied to spot-welded structure using the result from the optimization procedure. It is found that the fundamental natural frequency of the synthesized structure with the optimized result gives higher value than those with the initially given connection positions.

Selection of Connection Position to Change Dynamic Characteristic of Structure (동특성 변경을 위한 구조물의 결합 위치 선정)

  • 김경원;박윤식;박영진
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2003.05a
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    • pp.65-71
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    • 2003
  • This research deals with how to select connection positions of two substructures to be synthesized. The goal of this research is to find optimal connection positions in order to maximize the fundamental natural frequency of the synthesized structure. The natural frequencies of a connected structure are obtained by modal-force equations. Optimal connection positions can be selected through optimization process. In the optimization process, the natural frequencies of a connected structure are set to object function value and connection positions become design variables. The method described above is applied to synthesis problems of plates, which is initially conducted for FE models and verified through experiments. Especially in experiments, FRE(frequency Response function)s are obtained by means of the Modal Testing technique to be used in modal-force equations for synthesizing. Once the substructures are synthesized, the Modal Testing technique is again applied to spot-welded structure using the result from the optimization procedure. It is found that the fundamental natural frequency of the synthesized structure with the optimized result gives higher value than those with the initially given connection positions.

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Overload Reduction Design and Performance Evaluation for Connection Information Audit in ATM Switch (ATM교환기에서 연결 정보에 대한 감사 기능 수행에 따른 부하 경감 방안 및 성능 평가)

  • 김태희;전병실
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.41 no.10
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    • pp.11-16
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    • 2004
  • This paper proposes the overload reduction method for the connection information audit processor in ATM switch. Based on this method, we design the simple IPC exchange method and non-stop auditing method for IPC loss. We evaluate the performance about the proposed Audit method. At the result of evaluation, we figure out that the p개posed audit method reduces the load of call control processor because of a fewer IPC and prevent stopping audit function for IPC loss because of requesting the lost connection information again. Therefore, we confirm that the proposed audit method can reestablish a Mismatched connection information with a little load and elevate correctness about audit function.

STUDY OF GRADIENT SOLITONS IN THREE DIMENSIONAL RIEMANNIAN MANIFOLDS

  • Biswas, Gour Gopal;De, Uday Chand
    • Communications of the Korean Mathematical Society
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    • v.37 no.3
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    • pp.825-837
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    • 2022
  • We characterize a three-dimensional Riemannian manifold endowed with a type of semi-symmetric metric P-connection. At first, it is proven that if the metric of such a manifold is a gradient m-quasi-Einstein metric, then either the gradient of the potential function 𝜓 is collinear with the vector field P or, λ = -(m + 2) and the manifold is of constant sectional curvature -1, provided P𝜓 ≠ m. Next, it is shown that if the metric of the manifold under consideration is a gradient 𝜌-Einstein soliton, then the gradient of the potential function is collinear with the vector field P. Also, we prove that if the metric of a 3-dimensional manifold with semi-symmetric metric P-connection is a gradient 𝜔-Ricci soliton, then the manifold is of constant sectional curvature -1 and λ + 𝜇 = -2. Finally, we consider an example to verify our results.