• 제목/요약/키워드: Select

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최소비용(最小費用) 연속생산형(連續生産型) 샘플링검사(檢査)의 탐색(探索) (An Approach to select the lowest cost CSP-1 sampling plan(i, f))

  • 장경;신현재
    • 품질경영학회지
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    • 제11권1호
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    • pp.18-23
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    • 1983
  • Continuous sampling plans CSP-1(i,f)'s with which AOQL is guaranteed, can be applied to the cases in need of effective sampling without stopping the process or dividing batches during production. But the plans that can guarantee the same AOQL value are too many. Therefore we have to select one plan among them. There may be a lot of ways to choose it. This paper connects with various sampling costs, the concept to try to detect the shift of process average under fractional inspection in CSP-1,to find a minimum cost sampling plan among several CSP-1 sampling plan alternatives (i, f)'s with the same AOQL value.

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회로 시뮬레이션을 위한 영역 분할식 구분적 선형 다이오드 모델 (Piecewise Linear Diode Models by Region Division for Circuit Simulations)

  • 박인규
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.106-109
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    • 2008
  • Piecewise linear diode models are widely used for large-signal circuit analyses, especially power electronic circuit simulations. When using a piecewise linear diode model for simulation, a switching method to select a proper one among linear models is needed. The conventional switching method keeps the previous ON, OFF state information, and applies different switching conditions according to the state. However, this method has difficulties especially in extending to multi-piecewise linear models. This paper presents a switching method which appropriately divides the v-i plane into regions and select a linear model according to the region where the operating point(the voltage and the current of the diode) belongs. This switching method is easily extended to multi-Piecewise linear models. An example using the tableau analysis and the backward Euler integration is presented for verification.

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유사 사례를 이용한 공압 요소 선정에 관한 연구 (A Study on the Selection of Pneumatic Components Using Similar Case)

  • 신흥열;이재원
    • 산업경영시스템학회지
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    • 제19권40호
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    • pp.81-90
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    • 1996
  • It is one of the most important thing to select pneumatic components in pneumatic system design. For the purpose of selecting pneumatic components, case objects are described as a knowledge representation and the most similar case object must be selected by decision making in computer. In this paper, case objects are represented using the methodology that is used for CBR(Case Base Reasoning) and methodology that the most similar case can be selected is Proposed. Algorithm VIWNNR(Varying Index Weight-based Nearer Neighbor Retrieval) is accomplished by varying index weight, that is not considering a index matching as true or false but varying a size of weight according to the degree of matching and enhance the flexibility of SCRM(Similar Case Retrieval Module) involving fuzzy concept in matching the cases. SCRM is tested In verify the feasibility to select pneumatic linear components and is peformed effectively.

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Band Feature Extraction of Normal Distributive Multispectral Image Data using Rough Sets

  • Chung, Hwan-mook;Won, Sung-Hyun
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1998년도 The Third Asian Fuzzy Systems Symposium
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    • pp.314-319
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    • 1998
  • In this paper, for efficient data classification in multispectral bands environment, a band feature extraction method using the Rough sets theroy is proposed. First, we make a look up table from training data, and analyze the properties of experimental multispectral image data, then select the efficient band usin indiscernibility relation of Rough sets theory from analysis results. Proposed method is applied to LAMDSAT TM data on 2, June, 1992. Among them, normal distributive data were experimented, mainly. From this, we show clustering trends that similar to traditional band selection results by wavelength properties, from this, we verify that can use the proposed method that centered on data properties to select the efficient bands, though data sensing environment change to hyperspectral band environments.

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Artificial Traffic Light using Fuzzy Rules and Neural Network

  • Hong, You-Sik;Jin, Hyun-Soo;Jeong, Kwang-Son;Park, Chong-Kug
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1998년도 The Third Asian Fuzzy Systems Symposium
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    • pp.591-595
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    • 1998
  • This paper proposes a new concept of optimal shortest path algorithm which reduce average vehicle wating time and improve average vehicle speed, Electro sensitive traffic system can extend the traffic cycle when three are many vehicles on the road or it can reduce the traffic cycle when there are small vehicles on the road. But electro sensitive traffic light system doesn't control that kind of function when the average vehicle speed is 10km -20km. Therefore, in this paper to reduce vehicle waiting time we developed design of traffic cycle software tool that can arrive destinination as soon as possible using optimal shortest pass algorithm. Computer simulation result proved 10%-32% reducing average vehicle wating time and average vehicle speed which can select shortest route using built in G.P.S. vehicle is better than not being able to select shortest route function.

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산업체 전문직 여성의 직무특성과 직장상황에 의한 의복선택 연구 (Cloches Selection in Accordance with Job Characteristic and Working Place Situation of A Professional Women in Industry)

  • 정은숙;이선재
    • 복식
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    • 제50권5호
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    • pp.77-90
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    • 2000
  • The purpose of this study is to disclose the dimension of job characteristic, working place situation. and clothes selection, which are variable on clothes selection, to research the relation of job characteristic, working place situation, and clothes selection and to disclose the feature of consumers by each group in accordance with job characteristic. The follows are summary of this study result : The concept structure of job characteristic is composed by four types. Working place situation related with clothes selection are consisted of five types. Professional women selected clothes in accordance with nine feature. Job characteristic is related with working palace situation and influences on clothes selection. The persons influenced by activity state regarded personality as important when select clothes. The persons influenced by duty state regarded harmony and control as important, instead of, they ignored conformity. People select occupation according to individual feature, so the feature of consumers, working place environment, working place situation are different in accordance with job characteristic, as a result we can find differences in clothes selection suitable for working palace and purchasing.

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수학 학습유형과 문제 해결 전략 (Relationships between Mathematical Learning Styles and the Selection of Mathematical Problem Solving Strategies : Focused on the 1st Grade High School Students)

  • 양은경;황우형
    • 한국수학교육학회지시리즈A:수학교육
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    • 제44권4호
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    • pp.565-586
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    • 2005
  • The purpose of this paper is to analyze the selection difference of mathematical problem solving strategy by mathematical learning style, that is, the intellectual, emotional, and physiological factors of students, to allow teachers to instruct the mathematical problem solving strategy most pertinent to the student personality, and ultimately to contribute to enhance mathematical problem solving ability of the students. The conclusion of the study is the followings: (1) Students who studies with autonomous, steady, or understanding-centered effort was able to solve problems with more strategies respectively than the students who did not; (2) Student who studies autonomously or reconfirms one's learning was able to select more proper strategy and to explain the strategy respectively than the students who did not; and (3) The differences of the preference to the strategy are variable, and more than half of the students were likely to select frequently the strategy 'to use a formula or a principle' regardless of the learning style.

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Hyperion 영상의 제약선형분광혼합분석 기반 무감독 Endmember 추출 최적화 기법 (Unsupervised Endmember Selection Optimization Process based on Constrained Linear Spectral Unmixing of Hyperion Image)

  • 최재완;김용일;유기윤
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2006년도 춘계학술발표회 논문집
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    • pp.211-216
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    • 2006
  • The Constrained Linear Spectral Unmixing(CLSU) is investigated for sub-pixel image processing, Its result is the abundance map which mean fractions of endmember existing in a mixed pixel. Compared to the Linear Spectral Unmixing using least square method, CLSU uses the NNLS (Non-Negative Least Square) algorithm to guarantee that the estimated fractions are constrained. But, CLSU gets Into difficulty in image processing due to select endmember at a user's disposition. In this study, endmember selection optimization method using entropy in the error-image analysis is proposed. In experiments which is used hyperion image, it is shown that our method can select endmember number than CLSU based on unsupervised endemeber selection.

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우수 유전자 조합 선별을 위한 통계적 상호작용 방법비교 (Statistical Interaction for Major Gene Combinations)

  • 이제영;이용원;최영진
    • 응용통계연구
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    • 제23권4호
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    • pp.693-703
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    • 2010
  • 대개 인간의 질병과 관련된 유전자나 가축의 경제적인 특성과 관련된 유전자는 주로 상호작용으로 일어난다. 유전자의 상호작용을 찾기 위한 방법으로 다양한 방법들이 제시되었다. 본 논문에서는 유전자의 상호작용 효과를 규명하기 위해 개발된 확장된 MDR방법(E-MDR)과 더미변수를 활용한 MDR방법(D-MDR), 대규모 유전자들 중에서 주요 유전자 조합을 선별하는 SNPHarvester방법을 비교하여 인간의 질병이 아닌 한우의 경제적인 특성에 적용하여 우수한 유전자 조합을 선별하고 우수 유전자형을 밝힌다.

Comparative Evaluation of Multipurpose Reservoir Operating Rules Using Multicriterion Decision Analysis Techniques

  • Ko, Seok-Ku;Lee, Kwang-Man;Ko, luk-Hwan
    • Korean Journal of Hydrosciences
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    • 제4권
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    • pp.65-79
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    • 1993
  • Selection of the best operating rule among a set of alternatives for a multipurpose reservoir system operation requires to evaluate many minor criteria in addition to the major objectives assessed to the system. These problems are sufficiently complex and difficult that they are beyond heuristic decision rules and experiences in case several noncommensurable multiple criteria are included in the evaluation. With the assistance of multicriterion decision analysis techniques, it is possible to select the best one among various alternatives by systematically comparing and ranking the alternatives with respect to the criteria of choice. Evaluation criteria for multipurpose reservoir system operating rules were identified and defined, and the multicriterion decision analysis techniques were applied to evaluate the four existing operating rules of the Chungju multipurpose project according to the identified nine multiple criteria. The application results show that the methodology is very efficient to select the best operation alternative among a finite number of operating rules with many evaluation criteria for a large-scale reservoir system operation.

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