• 제목/요약/키워드: Embedded structure

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로봇 구조에 따른 이동거리 오차 보정 알고리즘 개발 (A Movement Distance Error Correction Algorithm Development According to the Structure of the Robot)

  • 임신택;정길도
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2008년도 하계종합학술대회
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    • pp.1097-1098
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    • 2008
  • In this paper We are going experiment which can happen at the movement of the robot to reduce the Systematic distance error. The system get the experiment result by using BLDC Motor, Encoder, ultrasonic sensor. The Embedded XP is adopted as an operating system, And The robot was controlled by using RS232.

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콘크리트 구조물의 파괴에서의 국소화된 균열진행해석 (Analysis of Crack Localization in Fracture of Concrete Structures)

  • 구자춘;송하원;심별;우승민;변근주
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2000년도 봄 학술발표회 논문집
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    • pp.583-586
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    • 2000
  • In this paper, the embedded crack approach that crack is modeled by discontinuous line inside finite element is applied for localized progressive fracture analyses. The algorithm for progressive fracture analyses of concrete structure are enhanced by introducing nonlinear softening curve and unloading algorithm of tension-softening curve which can simulate localized fracture of concrete. The failure analysis results ar compared with existing test results for varification.

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LEFT-INVARIANT FLAT RIEMANNIAN STRUCTURES ON LIE GROUPS

  • Park, Kyeong-Su
    • Journal of applied mathematics & informatics
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    • 제16권1_2호
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    • pp.453-459
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    • 2004
  • A left-invariant flat Riemannian connection on a Lie group makes its Lie algebra a left symmetric algebra compatible with an inner product. The left symmetric algebra is decomposed into trivial ideal and a subalgebra of e(l). Using this result, the Lie group is embedded isomorphically into the direct product of O(l) $\times$ $R^{k}$ for some nonnegative integers l and k.

휴가가 존재하는 M/M/2 대기 시스템의 한계치를 이용한 제어정책 (The Threshold Policy in the M/M/2 Queue with Server Vacation)

  • 이효성
    • 한국경영과학회지
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    • 제20권2호
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    • pp.1-10
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    • 1995
  • In this study, a threshold policy is considered for the M/M/2 queueing system with server vacations. The probability generating function for the number of customers present in the system is derived using an embedded Markov chain approach. Then, assuming a linear cost structure, an efficient procedure to find an optimal threshold policy is presented. The Laplace-Stieltjes transofrm for th waiting time of an arbitrary customer under a "FIFO" discipline is also derived.o derived.

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철도역의 현대화에 관한 연구 (Modernization of Korean Railway Station)

  • 김현웅
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2004년도 추계학술대회 논문집
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    • pp.1686-1690
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    • 2004
  • Railway stations consist of site, structure, skin, services, space and stuff. The depth of modernization will depend on which of these layers is defective, and on the degree to which the layers are embedded. Stations function as circulation spaces, operational premises, commercial premises and beacons. The type of modernization will depend both on the functions, and on the social (and financial) benefits to be gained by improving the performance of each function. Modernization will bring stations up-to-date, and enabling them to deliver optimal performance.

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이진 문서 영상에서의 특징 기반 텍스트 워터마킹 (Feature based Text Watermarking in Digital Binary Image)

  • 공영민;추현곤;최종욱;김희율
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 하계종합학술대회 논문집(4)
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    • pp.359-362
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    • 2002
  • In this paper, we propose a new feature-based text watermarking for the binary text image. The structure of specific characters from preprocessed text image are modified to embed watermark. Watermark message are embedded and detected by the following method; Hole line disconnect using the connectivity of the character containing a hole, Center line shift using the hole area and Differential encoding using difference of flippable score points. Experimental results show that the proposed method is robust to rotation and scaling distortion.

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경화콘크리트 내부의 기포분포상태 분석에 관한 연구 (Image analysis of an air void system in hardened concrete)

  • 김기철;정재동
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 1998년도 가을 학술발표대회 논문집(III)
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    • pp.791-796
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    • 1998
  • Air voids existed in hardened concrete have an important influence on concrete deterioration such as carbonation, freezing and thawing, and corrosion of embedded steel in concrete. Therefore it is very significant to investigate the pore structure of system(size, number and continuity of air voids) to solve the reason caused concrete deterioration. The purpose of this study is to develop the standard method of measuring air voids which affect properties in hardened concrete using image analyzing system. This paper presents the settlement of rapid and exact experimental method which extracts fine bubbles, calculates the number of air voids, and determines air-void distribution using image analyzing system with computer.

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Higher Order Knowledge Processing: Pathway Database and Ontologies

  • Fukuda, Ken Ichiro
    • Genomics & Informatics
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    • 제3권2호
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    • pp.47-51
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    • 2005
  • Molecular mechanisms of biological processes are typically represented as 'pathways' that have a graph­analogical network structure. However, due to the diversity of topics that pathways cover, their constituent biological entities are highly diverse and the semantics is embedded implicitly. The kinds of interactions that connect biological entities are likewise diverse. Consequently, how to model or process pathway data is not a trivial issue. In this review article, we give an overview of the challenges in pathway database development by taking the INOH project as an example.

일반 다중선택 선형배낭문제의 신속한 해법연구 (A Fast Algorithm for the Generalized Multiple Choice Linear Knapsack Problem)

  • 원중연
    • 대한산업공학회지
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    • 제21권4호
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    • pp.519-527
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    • 1995
  • By finding some new properties, we develop an O($r_{max}n^2$) algorithm for the generalized multiple choice linear knapsack problem where $r_{max}$ is the largest multiple choice number and n is the total number of variables. The proposed algorithm can easily be embedded in a branch-and-bound procedure due to its convenient structure for the post-optimization in changes of the right-hand-side and multiple choice numbers. A numerical example is presented.

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수치해석과 실험에 의한 SINTAP 용접 구조물 균열 평가법의 검증 (Finite Element and Experimental Validation of SINTAP Defect Assessment Procedure for Welded Structure)

  • 김윤재;김진수
    • Journal of Welding and Joining
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    • 제22권1호
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    • pp.50-57
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    • 2004
  • This paper provides FE and experimental validation of the defect assessment method for strength mismatched welded structures, resulting from the Brite Euram SINTAP (Structural Integrity Assessment Procedures for European Industry) project. This shows that the proposed method is conservative, and that the degree of conservatism is similar to that embedded in the methods for homogeneous structures. It provides confidence in the use of the proposed SINTAP method for assessing defective weld strength mismatched structures.