• 제목/요약/키워드: Practically

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유전자 알고리즘을 이용한 조선 소조립 로봇용접 공정 작업 계획 및 3-D 시뮬레이션 (Work Planning Using Genetic Algorithm and 3-D Simulation at a Subassembly Line of Shipyard)

  • 강현진;박주용;박현철
    • 대한용접접합학회:학술대회논문집
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    • 대한용접접합학회 2004년도 춘계 학술발표대회 개요집
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    • pp.18-20
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    • 2004
  • This study is to find the optimal work plan of robot welding in the subassembly process of shipbuilding and to verify the found solution through 3-D simulation. The optimal work plan was established by evenly distributing the work amount to each stage and finding the shortest work sequence. The shortest work sequence was found by using the genetic algorithm. The result was compared with the practically adopted case and verified through the 3-D simulation.

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화재 피해를 입은 일반강도 RC 보의 보수성능 (Structural Behavior of Retrofitted RC beams with Fire Damages)

  • 안주희;신영수;이차돈;홍성걸
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2003년도 봄 학술발표회 논문집
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    • pp.1013-1016
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    • 2003
  • This paper is to evaluate practically the techniques and materials of repair for RC elements with fire damages as well as to investigate the structural behavior of RC beams according to pre- or post-repair after fire-damages. For this purpose, normal concrete flexural specimens were exposed to high temperatures by the ISO 834 specification. After natural cooling and post-fire-curing in a natural environment for 2 months, the specimens were repaired with polymer cement mortar for 1 month curing.

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현실제약조건을 이용한 설비배치안 개발 방법 연구 (A Study on the development of facility layout using practical constraints)

  • 문기주
    • 대한산업공학회지
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    • 제19권1호
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    • pp.31-38
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    • 1993
  • This paper presents a possible methodology to develop a facility layout using practical constraints. Those factors considered in the system are not only used for the evaluation of layout but also for the search to solution on the design process. Necessarily, this method develops practically feasible solutions with less iterations since the infeasible alternative layouts are rejected by the practical constraints before evolutions. The suggested method is implemented in FORTRAN for experimental purposes and the results are discussed in detail.

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국가(國家) 리스크(Country Risk) : 개념(槪念)과 연구방향(硏究方向) (Country Risk : A Literature Survey)

  • 정홍주
    • 무역상무연구
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    • 제13권
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    • pp.439-451
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    • 2000
  • This paper aims to define country risk, review previous literature, and provide future direction for further research. Country risk is found to be analyzed in various ways in export, foreign direct investment and international finance, and thus analysis of the risk needs an integrated perspective and individual one as well. Systematic analysis, in particular, concentrating on relationship and structure within several risk is required in order to understand the country risk academically and to manage it practically.

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가설공사의 이동식 비계 전도방지 버팀대 개발 (Development of a Bracing System Preventing Falling Down of Movable Scaffoldings in Temporary works)

  • 장명훈
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2012년도 춘계 학술논문 발표대회
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    • pp.31-33
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    • 2012
  • Movable scaffolding has been used to work in high places. The scaffolding is economical and convenient to move to other places, but it has the risk of falling down. This paper proposes a fixed bracing system to prevent the falling down of a movable scaffolding, and evaluates its usability by making a small-sized model. Further studies of structural stability, safety, and economical efficiency is necessary to use the system practically.

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Development of Viscous Inspection Equipment by Moire Phenomenon for Flatron Panel Glass

  • Chung, Kyu-Chul
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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    • pp.118-121
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    • 2002
  • In this study, we describe the development of viscous inspection equipment for flatron panel glass by Moire phenomenon and propose a new idea to develop an automatic inspection system for viscous or cord defects. It is possible to detect string viscous more easily and the equipment is practically being applied in production line. After using this equipment, the ratio of defective from customer is dropped significantly.

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Introduction of Advanced Education in General Dentistry

  • Roh, Byoung-Duck
    • 대한치과보존학회:학술대회논문집
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    • 대한치과보존학회 2001년도 추계학술대회(제116회) 및 13회 Workshop 제3회 한ㆍ일 치과보존학회 공동학술대회 초록집
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    • pp.557-557
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    • 2001
  • Even though Korean Dentistry practically have adapted the specialty system, the execution of regulation was tentatively delayed during the past 30 years. Recently a group of dentists advocated that the legislation must be executed. The Korean Dental Association announced the new legislation for specialty program to accommodate the desires of almost of dentists. It is prospected to restrict the specialist as low as 8% or up to 15%. But in fact, during the past 10 year, the applicant to the specialty program increased rapidly and about 40% of graduate are in the specialty programs these days.(omitted)

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충전용 알칼리 망간 전지 기술 현황 (Status of the Rechargeable Alkaline Manganese Battery Technology)

  • 방부길
    • 한국전기화학회:학술대회논문집
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    • 한국전기화학회 1999년도 전지기술심포지움
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    • pp.137-146
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    • 1999
  • The rechargeable alkaline manganese dioxide(RAM)battery system has reached a performance level that enables the consumer to utilize RAM for practically all applications where currently single use cells(alkaline manganese, zinc-carbon)are being used. In addition, it can replace nickel-cadmium and nickel-metal hydride cells in low to medium power applications with much improved charge retention at higher operating temperatures and in intermittent use and works well with solar charging. A review is given on RAM cell performance as well as a comparison to competing rechargeable technologies. Potential new possibilities in the field of OEM(original equipment manufacturer) applications are discussed.

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An Alternative Approach to the Robust Inventory Control Problem

  • Park, Kyungchul
    • Management Science and Financial Engineering
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    • 제20권2호
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    • pp.1-5
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    • 2014
  • The robust inventory control problem was proposed and solved by Bertsimas and Thiele (2006). Their results are very interesting in that the problem can be solved easily and also the solution possesses nice properties of those found in the traditional stochastic inventory control problem. However, their formulation is shown to be incorrect, which invalidates all of the results given there. In this paper, we propose an alternative formulation of the problem which uses a different but practically applicable uncertainty set. Under the newly proposed model, all of the useful properties given in Bertsimas and Thiele (2006) will be shown to be valid.

스핀들회전오차 종합적성능평가 기술에 관한 연구 (Combined Error Performance of Machine Tool spindle)

  • 신현장;이석원;박희재
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1996년도 추계학술대회 논문집
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    • pp.333-337
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    • 1996
  • The spindle directly affects parts accuracy during machining, or work piece in machine tools. In this paper a comprehensive study is performed combined mr performance of machine tool spindle. The developed methology has been practically applied to a spindle of machine tools.

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