• 제목/요약/키워드: problem analysis

Search Result 16,360, Processing Time 0.047 seconds

The performance analysis and the determination of the number of pallets in FMS design (FMS 설계시 성능분석 및 팔렛수 결정에 관한 연구)

  • 강석호;김철영;민학기
    • Journal of the Korean Operations Research and Management Science Society
    • /
    • v.21 no.1
    • /
    • pp.19-30
    • /
    • 1996
  • We formulate the problem and propose a new heuristic method for determining the number of pallets of each type of component parts produced in FMS. The proposed method uses the Schweitzer's mean value analysis algorithm of which robustness and fitness for this problem is shown through simulation experiments. This method finds a better solution more efficiently than Solot's PANORAMA, which is well-known method to determine the number of pallets of FMS.

  • PDF

Target Motion Analysis for Active/Passive Mixed-Mode Sonar Systems

  • Taek, Lim-Young;Lyul, Song-Taek
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2001.10a
    • /
    • pp.172.5-172
    • /
    • 2001
  • Target Motion Analysis(TMA) for Passive Sonar Systems with bearing-only measurements needs to enhance system observability to improve target tracking performance by ownship maneuvering. However, tracking problem incurred by weak observaility result in slow convergence of the target estimates. On the other hand, active sonar systems do not have problem associated with system observaility. However, it drawback related to system survivability. In this paper, the algorithm that could be used in Active/passive Mixed-Mode Sonar Systems is proposed to analyze maneuvering target motion and to improve TMA performance. The proposed TMA algorithm is tested by a series of computer simulation runs and the results ...

  • PDF

Analysis of Image Quality on Camera-based Barcode Reading System (카메라 기반 바코드 판독 시스템에서의 바코드 영상 품질 향상에 관한 연구)

  • 박상은;박문성;김인수;김혜규
    • Proceedings of the IEEK Conference
    • /
    • 2003.11a
    • /
    • pp.481-484
    • /
    • 2003
  • In this paper, we propose a method that acquires proper image for barcode reading on camera-based barcode reading system. In the camera system, there is serious blurring problem, and to get proper output of the barcode, it must be solved. To solve it, we proposed two methods. The first one is to make the camera movable, so it can change the distance of focus. The other is software approach, and threshold value is revised through regression analysis. Using such process, we can notice that blurring problem can be overcome.

  • PDF

Expert System for Project Selection using Goal Programming (목적계획법을 이용한 프로젝트의 선택을 위한 전문가 시스템 개발)

  • 강경규;김창은;이상호
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.19 no.38
    • /
    • pp.131-138
    • /
    • 1996
  • In real world, the organization has multiple objects. Inorder to solve the multiple objects, we present the goal programming for solving project selection problem we also developed expert system which is focused on function of analysis. User which doesn't have knowledge of goal programming can solve the project selection problem and get a result of analysis.

  • PDF

A Critical Review of Semantic Theories of Focus and an Alternative Approach (의미론적 초점 이론에 대한 비판적 고찰과 대안)

  • Wee, Hae-Kyung
    • Language and Information
    • /
    • v.14 no.1
    • /
    • pp.197-227
    • /
    • 2010
  • This study reviews (i) the (dis)advantages of two major semantic theories of focus, i.e., the Alternative Semantics (AS) and the Structured Meaning Theory (SM), and (ii) the hybrid analysis consisting of these two theories proposed by Krifka (2006). After pointing out a problem of this hibrid analysis, this study attempts to show the third alternative, i.e., the theory of identificational predication for focus can solve this problem.

  • PDF

A Scheduling Analysis of FMS Using TPM Unfolding (타임 패트리넷 Unfolding을 이용한 FMS의 스케쥴링 분석)

  • Lee, Jong-Geun
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.7 no.4
    • /
    • pp.344-350
    • /
    • 2001
  • In this paper, we are focused on the analysis of acyclic schedule for the determination of the opti-mal cycle time and minimization of work in process. Especially, this paper deals with the product ratio-driven cyclic scheduling problem in FMS with different products and ratio using the TPN(Time Petri Nets)un-folding.

  • PDF

An Analysis of Artwork E-Commerce:With Focus on the Marketing Sucess Factors (마케팅적 성공요인 관점에서 본 미술품 전자상거래분석)

  • Lee, Woo-Chae
    • International Commerce and Information Review
    • /
    • v.7 no.4
    • /
    • pp.59-76
    • /
    • 2005
  • In this research, electronic commercial web-sites of artwork are analysed with ten marketing success factors such as, low price, variety of products convenience of shopping, ensure credibility DB marketing, providing information, virtual community, preoccupying the marketing, quick response, and strategic cooperation. The analysis showed that the main problem of the Korean fine art market is the lack of demand. Though the problem of the offline fine art market is not to be solved by websites, it seems that the solution should be brought through the operation of websites with long-term plans and patience.

  • PDF

Postbuckling Behavior of Composite Laminated Cylinder under Lateral Pressure (횡방향 압력을 받는 복합적층 원통실린더의 좌굴후 거동해석)

  • 조종두;김헌주
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 1994.10a
    • /
    • pp.843-846
    • /
    • 1994
  • The bucking and postbuckling behavior of composite laminated long cylinders under lateral pressure are investigated by the nonlinear finite element method. A long cylinder of 3-D shell problem is modelled as 2-D plane strain problem for analysis. And for the finite element analysis, eight nodes quadratic element is utilized. Arc-length method is adopted for the iteration and load-increment along postbuckling equilibrium path. The composite laminated cylinders in study are composed of cross-plied uniaxially reinforced shells. As a prsult, buckling load and postbuckling behavior are discussed.

  • PDF

Analysis of Mass Position Detection Using the Change of the Structural Dynamic Characteristics (동특성 변화로부터 구조물의 변경질량 위치 해석)

  • 이정윤
    • Transactions of the Korean Society of Machine Tool Engineers
    • /
    • v.13 no.2
    • /
    • pp.120-126
    • /
    • 2004
  • This study proposed the analysis of mass position detection due to the change of the mass and strifeless of structure by using the original and modified dynamic characteristics. The method is applied to examples of the cantilevers beam and the 3 degrees of freedom system by modifying the mass. The predicted detection of the mass positions and magnitudes are in good agrement with the present study from the structural reanalysis using the modified mass.

Development of Fuzzy Objective Functioin for Establishing the Region Correspondence

  • Soh, Young-sung
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.2 no.3
    • /
    • pp.22-28
    • /
    • 1992
  • One of the challenging problems in dynamic scene analysis is the correspondence problem. Points and lines have been two major entities for establishing the correspondence among suxcessive frmes and gave rise to discrete approach to dynamic scene analysis. SOme researchers take continuous approach to analyse the motion. There it is usually assumed that some sort of region correspondence has already been established. In this paper, we propose a method based on fuzzy membership function for solving region correspondence problem.

  • PDF