• 제목/요약/키워드: Select

검색결과 9,574건 처리시간 0.032초

우량품종 선발을 위한 사초용 호밀의 생육특성 및 건물수량 평가 (Evaluation of Agronomic Characteristics and Dry Matter Yield of Forage Rye for High-Yielding)

  • 신정남;고기환
    • 한국초지조사료학회지
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    • 제24권3호
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    • pp.201-206
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    • 2004
  • 본 시험은 가을에 파종한 조, 만생품종 사초용 호밀의 생육특성 및 건물수량을 알기 위하여 실시하였다. 2002년 10월 3일과 2003년 10월 8일에 조생품종인 Koolgrazer을 대조품종으로 조생품종 9909, Ol-homil 및 Jlee select와 중생품종인 Homil 22 그리고 만생품종인 Danko, Kior, Amilo 및 Spooner을 각각 파종하였으며, 2003년 4월 22일과 2004년 4월 23일에 각각 수확하였다. 내도 복성은 조중생품종이 만생품종보다 다소 낮았다. 초고는 조중생품종이 만생품종 보다 길었다. $50\%$ 출수일은 조생품종이 2년 평균 4월 14일이었던 반면에 만생품종이 4월 24일로서 조생품종이 10일이나 더 빨랐다. CP 함량은 만생품종이 조생품종보다 높았으며, ADF와 NDF 함량은 조생품종이 높았다. 건물수량은 1년차 시험에서 조생품종Jlee select가 가장 높았으며(p<0.05), 9909와 Koolgrazer는 유사하였고, 중만생품종 Homil 22, Danko, Kior, Amilo 및 Spooner는 조생품종 보다 낮았다. 2년차 시험에서는 조생품종인 9909가 가장 높았으며(p < 0.05), Koolgrazer와 Ol-homil은 비슷하였고 Jlee select는 낮았고, 만생품종 Danko, Kior, Amilo 및 Spooner는 조생품종 보다 낮았다. 본 연구의 결과로 보아 2모작 작부체계에서 추파용 호밀은 조생품종이 적합하다고 생각된다.

IEC규격에 의한 고장전류해석 및 차단기용량선정 (The short-circuit calculation and circuit breaker selection as IEC standard)

  • 이경호
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2007년도 춘계학술대회 논문집
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    • pp.433-436
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    • 2007
  • This paper analyzes how to calculate the three phase short-circuit currents for ac electrical system and select the high & low voltage circuit breaker based on IEC60609, IEC60056 and IEC60947-2 standards. We proposed the multiplying factor considering system time constant and circuit breaker rating to select circuit breaker accurately.

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고화질 PDP를 위한 Fuzzy Sub-Field 맵핑 알고리즘 (Fuzzy Sub-Field Mapping Algorithm For High Image Quality PDP)

  • 구본철;진성일;최두현
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2003년도 신호처리소사이어티 추계학술대회 논문집
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    • pp.359-362
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    • 2003
  • In PDP(Plasma Display Panel), sub-field method is used to implement gray scale. Each sub-field has different periods. And Every gray level has information of which sub-field has to be displayed. This is called sub-field mapping. There are several sub-field mapping values in some gray levels. So, it is possible to select best choice in this paper, we propose new sub field mapping method using a fuzzy inference system to select best sub-field mapping values in accordance with input image and environment temperature. In order to implement fuzzy system, we used MATLAB fuzzy inference editor.

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SFC로 설계된 공정제어에서 Remote Control에 의한 선택 시퀀스 제어 방법 (A Method of Select Sequence Control by Remote Control in Process Control designed by SFC)

  • 유정봉
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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    • pp.134-136
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    • 2007
  • Sequential Function Chart(SFC) is very easy to grasp the sequential flow of control logic and has the compatability for a maintenance, In process control, when an error is occurred, to execute other routine by force, we control the process by remote control. In this paper, we proposed the method of select sequence control by remote control in process control designed by Sequential Function Chart(SFC).

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유전자 알고리즘을 이용한 서어보 밸브의 설계 파라미터 최적화 (Optimization of Design Parameters of a Servo Valve Using the Genetic Algorithm)

  • 엄태준
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2000년도 춘계학술대회논문집A
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    • pp.464-468
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    • 2000
  • This paper presents the optimization technique to select the design parameters of a hydraulic servo valve using the genetic algorithm. The dynamic performance is governed by the design parameters of the servo valve and they may be select by repeated number of simulations such that the desired performance is obtained. Using the genetic algorithm to optimize the design parameters, effective method is suggested. This method can be used for the design of the hydraulic systems as well as the servo valve.

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$p^{n-m}$ fractional Factorial Design Excluded SOme Debarred Combinations

  • Choi, Byoung-Chul;Kim, Hyuk-Joo
    • Communications for Statistical Applications and Methods
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    • 제7권3호
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    • pp.759-766
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    • 2000
  • In order to design fractional factorial experiments which include some debarred combinations, we should select defining contrasts so that those combinations are to be excluded. Choi(1999) presented a method of selectign defining contrasts to construct orthogonal 3-level fractional factorial experiments which exclude some debarred combinations. In this paper, we extend Choi's method to general p-level fractional factorial experiments to select defining contrasts which cold exclude some debarred combinations.

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군산주변해역에 있어서 자원조성용 방류어종의 선정에 관한 연구 (A Study on the Select of Releasing Fishes for the Nourishment of Fisheries Resources around the Gunsan Coastal Seas)

  • 김종화;김민석
    • 수산해양교육연구
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    • 제21권4호
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    • pp.576-585
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    • 2009
  • The aim of this study is to indicate that how to select the releasing fishes for the nourishment of fisheries resources in small ranching area around the Gunsan coastal seas. The collected data were analysed, and revealed that the proper fisheries for releasing around the seas are Limanda Yokohame, sebastes schlegeli, paralichthys olibaceus, black porgy and little clam.

다특성치 손실함수를 이용한 최적설비 결정 (Selecting the Optimal Facilities using Multiple Characteristics Loss Function)

  • 허준영;서장훈;조용욱;박명규
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2003년도 춘계학술대회
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    • pp.1-5
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    • 2003
  • We purpose a decision model to select the optimal facilities for the Decision Making problems with multiple characteristics(nominal-is-best characteristics, larger-is -better characteristics, smaller- is -better characteristics). Using this model, concept of the loss function is used in this comprehensive method of for select the optimal preferred facilities. To solve the issue on the optimal preferred facilities for multiple characteristics, this study propose the loss function with cross-product terms among the characteristics and derived range of the coefficients of the terms.

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금형 가공의 합리화를 위한 외적 절삭조건 선정 시스템에 관한 연구 (A Study d the Optimazation the Cutting Condition Selecting System for the Rationality of Mould Manufacture)

  • 현동훈;이용성
    • 한국안전학회지
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    • 제8권4호
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    • pp.73-81
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    • 1993
  • In recent years, mould industry in machining requires to increase machining productivity and to reduce costs, To adapt this trend it is necessary to optimize machine condition, Even though many researches in this area introduced various way to set the optimal condition, still there are not enough. Therefore this research was done to select the optimal cutting condition for industry, and to develop the computer program to select the optimal cutting condition automatically. The result of this research will contribute to increase machining productivity of various mould companies with the automatic selection of optimal cutting condition.

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이동통신 Convergence 시대에 있어 R&D 평가 모델 (An Evaluation Model for R&D in Mobile Convergence Era)

  • 박복녕;김태규;권준혁
    • 한국정보통신설비학회:학술대회논문집
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    • 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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    • pp.336-339
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    • 2008
  • Convergence services are very important to mobile operators in next generation mobile networks. However, mobile operators cannot deal with all convergence services because there are numerous convergence services. Thus, they should select and develop main technologies to provide convergence services which are areas to grow our business. In this paper, we introduce basic technologies to provide convergence services and then present some evaluation models to select an important area and technology.

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