• Title/Summary/Keyword: Logical transfer

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The requirement deduction plan research for the organization composition of process base (프로세스 기반의 조직 구성을 위한 요건 도출 방안 연구)

  • Hong, Seon-Ho;Kim, Young-Tae;Lim, Gyeong-Mi
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.360-364
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    • 2009
  • To verify the suitability of the Railroad safety requirements analysis, the actions of the function which it follows in a given operation condition are composed of the rule model or the state model. And it test must be possible. The subject of condition transfer in compliance with the transfer condition which is an event of system it will be able to accomplish the operation of system. However, tasks allocated to the actor are the duty which is added in organization. This time, the start of duty task is started in compliance with an external or internal condition. If there are 9 tasks which have one objective, the relationship among the previous and the current internal tasks and next tasks which will given is able to show in logical model. Thus when planning an organization, the integral part of class must include Task, Role and Position. And this time we make a series of outputs of examination of organizing model and examples to meet the capable skill.

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A Storage and Retrieval System for Structured SGML Documents using Grove (Grove를 이용한 구조적 SGML문서의 저장 및 검색)

  • Kim, Hak-Gyoon;Cho, Sung-Bae
    • Journal of KIISE:Computing Practices and Letters
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    • v.8 no.5
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    • pp.501-509
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    • 2002
  • SGML(ISO 8879) has been proliferated to support various document styles and to transfer documents into different platforms. SGML documents have logical structure information in addition to contents. As SGML documents are widely used, there is an increasing need for database storage and retrieval system using the logical structure of documents. However. traditional search engines using document indexes cannot exploit the logical structure. In this Paper, we have developed an SGML document storage system, which is DTD-independent and store the document type and the document instance separately by using Grove which is the document model for DSSSL and HyTime. We have used the Object Store, an object-oriented DBMS, to store the structure information appropriately without any loss of structural information. Also, we have supported a index structure for search efficiency like the relational DBMS, and constructed an effective user interface which combines content-based search with structure-based search.

An Algorithmic Approach to Total Breast Reconstruction with Free Tissue Transfer

  • Yu, Seong Cheol;Kleiber, Grant M.;Song, David H.
    • Archives of Plastic Surgery
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    • v.40 no.3
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    • pp.173-180
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    • 2013
  • As microvascular techniques continue to improve, perforator flap free tissue transfer is now the gold standard for autologous breast reconstruction. Various options are available for breast reconstruction with autologous tissue. These include the free transverse rectus abdominis myocutaneous (TRAM) flap, deep inferior epigastric perforator flap, superficial inferior epigastric artery flap, superior gluteal artery perforator flap, and transverse/vertical upper gracilis flap. In addition, pedicled flaps can be very successful in the right hands and the right patient, such as the pedicled TRAM flap, latissimus dorsi flap, and thoracodorsal artery perforator. Each flap comes with its own advantages and disadvantages related to tissue properties and donor-site morbidity. Currently, the problem is how to determine the most appropriate flap for a particular patient among those potential candidates. Based on a thorough review of the literature and accumulated experiences in the author's institution, this article provides a logical approach to autologous breast reconstruction. The algorithms presented here can be helpful to customize breast reconstruction to individual patient needs.

A Study about Preventing Improper Working of Equipment on ATS System by Signaling Equipment (신호장치에 의한 ATS 신호장치 오동작 방지에 대한 연구)

  • Ko, Young-Hwan;Choi, Kyu-Hyoung
    • Proceedings of the KSR Conference
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    • 2008.06a
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    • pp.579-587
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    • 2008
  • Promotion of the line no.2 in Seoul Metro was changing from the existing signaling facilities for ATS(Automatic Train Stop) vehicles to the up-to-date signaling facilities for ATO(Automatic Train Operation). But, in consequence of conducting a trial run after being equipped with the ATO signaling facilities, the matter related to mix-operation with the existing ATS signaling facilities appeared. The operation of the existing ATS signaling system in combination with the ATO signaling system has made improper working related to frequency recognition of the ATS On-board Computerized Equipment. This obstructs operation of a working ATS vehicle. That is, as barring operation of an ATS vehicle that should proceed, it may make the proceeding ATS vehicle stop suddenly and after all, it will cause safety concerns. In this paper, we designed a wayside track occupancy detector that previously prevents improper working related to frequency recognition of the ATS On-board Computerized Equipment by gripping classification and working processes of operating trains throughout transmission of local signaling information from the existing facilities, which does not need to change or replace the existing signaling facilities. Furthermore, we described general characteristics of the wayside track occupancy detector and modeled the IFC(InterFace Contrivance) device and the logical circuit recognizing signal information. Then, we made an application program of PLC(programmable Logic Computer) based on the stated model. We, in relation to data transfer method, used the frame in TCP/IP transfer mode as the standard, and we demonstrated that ATO transmission frequency is intercepted.

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An Implementation Architecture for Knowledge Flow Model (지식 흐름 모델의 구현 아키텍처에 관한 연구)

  • Kim, Su-Yeon;Hwang, Hyun-Seok
    • Knowledge Management Research
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    • v.7 no.2
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    • pp.53-68
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    • 2006
  • Knowledge has become an important resource for organization. The manufacturing industry is usually operated on the basis of business processes, and most workers are familiar with their own processes. The process-based approach, therefore, can provide an efficient way to capture and navigate knowledge. In this study, we focus on knowledge which may be missed during knowledge transfer among workers. For this, we propose a method for analyzing knowledge flow, which is passed among business processes. We propose a process-based knowledge management framework for analyzing knowledge flow, which employs a two-phase analysis: process analysis and knowledge flow analysis. A knowledge flow model, represented by Knowledge Flow Diagram, is proposed as a tool for representing knowledge. We formulate several semantics for knowledge flow modeling. We build the three-level schema: conceptual, logical, and physical in order to automate the knowledge model adaptive to knowledge management systems. The proposed approach is verified and illustrated through a case study on the manufacturing process of A Company.

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Development of IEC61850 interface for 3rd party communication of online GIS preventive diagnostic system (이기종 통신을 위한 온라인 GIS 예방진단 시스템의 IEC61850 인터페이스 기능 개발)

  • Park, Chang-Sun;Park, Jin-Ho;Kim, Jung-Han
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.724-725
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    • 2011
  • 현재 전력설비는 디지털 변전소 국제 표준 통신 규격인 IEC61850을 채택하고 있는 추세에 있으며, 온라인 GIS (Gas Insulated Switchgear) 예방진단 시스템의 고객 요구 사양도 IEC61850을 이용하여 외부 인터페이스가 가능한 구조를 포함하고 있다. 본 연구에서는 온라인 GIS 예방진단 시스템에 대한 IEC61850 모델을 제시하고 Logical Node를 구성하였다. 부분방전 데이터를 비롯한 실시간 감시 데이터는 IEC61850의 fixed report 기능으로 구현하였고, 부분방전 이벤트 및 이력 정보는 파일로 저장하여 IEC61850의 file transfer 기능으로 구현하였다. 기능 검증을 위하여 온라인 GIS 예방진단 시스템 서버에 IEC61850 서버 기능을 탑재하였고 상용의 IEC61850 클라이언트 소프트웨어를 이용하여 데이터 통신 및 파일 전송 기능을 확인하였다

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Design and Configuration of Reconfigurable ATM Networks with Unreliable Links

  • Lee, Jong-Hyup
    • ETRI Journal
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    • v.21 no.4
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    • pp.9-22
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    • 1999
  • This paper considers a problem of configuring both physical backbone and logical virtual path (VP) networks in a reconfigurable asynchronous transfer mode (ATM) network where links are subject to failures. The objective is to determine jointly the VP assignment, the capacity assignment of physical links and the bandwidth allocation of VPs, and the routing assignment of traffic demand at least cost. The network cost includes backbone link capacity expansion cost and penalty cost for not satisfying the maximum throughput of the traffic due to link failures or insufficient link capacities. The problem is formulated as a zero-one non-linear mixed integer programming problem, for which an effective solution procedure is developed by using a Lagrangean relaxation technique for finding a lower bound and a heuristic method exploited for improving the upper bound of any intermediate solution. The solution procedure is tested for its effectiveness with various numerical examples.

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Case Study on the Development of Performance Indicators of Industrial R&D Program (산업 R&D 프로그램의 성과지표개발에 관한 사례연구)

  • Yang, Chun-Hee;Lee, Jae-Ha
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.35 no.2
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    • pp.1-8
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    • 2012
  • The primary goal of this study is to develop proper performance indicators for evaluating the results of industrial R&D program. We define R&D results include output, transfer, outcome, and impact in the performance of R&D program. Performance indicators are focused on the results of R&D commercialization, building the industrial foundations as performance proxy of R&D program of Ministry of Knowledge Economy. And we first try to design the coupled structure as logical model between R&D program goals and performance indicators. The coupled structure is represented with objectives of group unit of R&D program, implementation process, R&D practical stage, and the ultimate goal of R&D program.

Analysis of Boltzmann transport equation with Finite Volume Method at Spherical coordinate (유한체적법을 통한 구면 좌표계에서의 볼츠만 수송방정식의 해석)

  • Oh, Hyuck-Keun;Jin, Jae-Sik;Lee, Joon-Sik
    • Proceedings of the KSME Conference
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    • 2008.11a
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    • pp.1800-1805
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    • 2008
  • A "finite volume method" is proposed to predict heat transport in a spherical enclosure at micro/nanoscale with the Boltzmann transport equation (BTE). The gray version of the BTE with the relaxation time approximation has been applied. Pointing out similarity between radiative transfer equation (RTE) and BTE, the mapping process in RTE is adopted to treat the angular derivative term and linear algebraic discretization equation is derived by using the established method which is used in 2-D BTE in cartesian coordinates. The simulation results are compared to exact solution to RTE for various acoustic thicknesses and ratio of radii. The comparison shows that this method is logical and accurate, and it is possible to easily adopt various models in spherical BTE.

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Vibration Isolation System of a Large Reverberation Chamber (대형 잔향실의 방진 설계 및 검증)

  • 김영기;김홍배;이동우;우성현;문상무
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2003.11a
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    • pp.1026-1031
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    • 2003
  • A vibration isolation system fur a large reverberation chamber (1,228㎥, 1,000ton) has been installed. The reverberation chamber generates loud noise and induces high level of vibration to perform spacecraft acoustic environmental tests. The isolation system prevents vibration transfer from the chamber to enclosure buildings. This paper describes logical design process and commissioning experiments of the system. Design criteria have been induced from rigid body model of the chamber. Finite element model has been employed to select the characteristics of rubber pads. A total of 21 rubber pads have been installed between the chamber and supporting pedestals. A sand bag of 800kg was dropped on the chamber floor to measure the natural frequency of the isolation system. Absolute transmissibility has been measured while generating 145㏈ in the chamber. The natural frequency of the chamber is 10.5㎐, which is 80% of estimated value. Overall transmissibility at working frequency range (25㎐-10,000㎐) is less than -6㏈.

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