• 제목/요약/키워드: similar components

검색결과 1,896건 처리시간 0.031초

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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유사부품 검색을 위한 개선된 SARM (Enhanced SARM for Similar Components Retrieval)

  • 한정수;김귀정
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2003년도 추계종합학술대회 논문집
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    • pp.128-131
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    • 2003
  • 본 연구는 기존의 유사 부품 검색 알고리즘인 spreading activation 방법의 단점인 속도의 문제를 해결하여 보다 효율적인 부품 검색을 할 수 있도록 개선시켰다. 또한 개선된 SARM을 이용한 부품 정보와 질의어 관련 인터페이스를 구축하였고 이를 통한 부품 검색 시스템을 구축하였다.

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소프트웨어 부품의 재사용을 위한 개선된 패싯 분류 방법과 의미 유사도 측정 (Advanced Faceted Classification Scheme and Semantic Similarity Measure for Reuse of Software Components)

  • 강문설
    • 한국정보처리학회논문지
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    • 제3권4호
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    • pp.855-865
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    • 1996
  • 본 논문에서는 재사용가능한 소프트웨어 부품의 분류 과정을 자동화하여, 소프트 웨어 부품 라이브러리에 구조적으로 저장하는 방안을 제안한다. 효율적이고 자동화 된 소프트웨어 부품의 분류를 위하여 자연어로 기술된 소프트웨어 부품 설명서로부터 의미 정보와 문장 구성 정보 등의 특징을 획득하여 소프트웨어 부품의 특성을 표현하 는 패싯을 결정하고각각의 패싯에 해당하는 항목들을 자동으로 추출하여 소프트웨어 부품 식별자를 구성하였다. 그리고 분류된 소프트웨어 부품들 사이의 의미 유사도를 측정하여 비슷한 특성을 갖는 소프트웨어 부품들을 인접한 장소에 저장시켜 구조화된 소프트웨어 부품 라이브러리를 구축하였다. 제안한 방법은 소프트웨어 부품의 분류 과정이 간단하고, 유사한 소프트웨어 부품을 쉽게 식별할 수 있었으며, 또한 소프트 웨어 부품을 라이브러리에 구조적으로 저장할 수 있다.

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가시오가피, 당귀와 산수유 성분이 함유된 메주로 제조한 전통 된장의 이화학적 특성 및 관능적 특성 (Physicochemical and Sensory Characteristics of Traditional Doenjang Prepared using a Meju Containing Components of Acanthopanax senticosus, Angelica gigas, and Corni fructus)

  • 이임진;한진숙
    • 한국식품조리과학회지
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    • 제25권1호
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    • pp.90-97
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    • 2009
  • Changes in the quality characteristics of doenjang prepared with a meju containing components of Acanthopanax senticosus, Angelica gigas and Corni fructus during storage were evaluated. Three types of doenjang produced using each of these components showed lower Hunter's L and a values than the values of the control during the initial stage of storage: however, these values were similar to those of the control after 60 days of storage. Doenjang containing A. gigas showed a similar degree of browning to that of the control during the early stage of storage, while the degree of browning observed in the other samples was much higher than that og the control during this period. Despite these initial differences, the browning in all samples became similar after extended storage. The level of acidity increased gradually for up to 60 days, after which it decreased slightly. The pH of all treatments decreased with storage time. The amino-N contents of all types of doenjang increased gradually, reaching peak values after 60 days. Doenjang with A. senticosus and A. gigas had a strong characteristic flavor that reduced the native flavor of doenjang. Doenjang with C. fructus showed a similar overall palatability to that of the control.

A New Distance Measure for a Variable-Sized Acoustic Model Based on MDL Technique

  • Cho, Hoon-Young;Kim, Sang-Hun
    • ETRI Journal
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    • 제32권5호
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    • pp.795-800
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    • 2010
  • Embedding a large vocabulary speech recognition system in mobile devices requires a reduced acoustic model obtained by eliminating redundant model parameters. In conventional optimization methods based on the minimum description length (MDL) criterion, a binary Gaussian tree is built at each state of a hidden Markov model by iteratively finding and merging similar mixture components. An optimal subset of the tree nodes is then selected to generate a downsized acoustic model. To obtain a better binary Gaussian tree by improving the process of finding the most similar Gaussian components, this paper proposes a new distance measure that exploits the difference in likelihood values for cases before and after two components are combined. The mixture weight of Gaussian components is also introduced in the component merging step. Experimental results show that the proposed method outperforms MDL-based optimization using either a Kullback-Leibler (KL) divergence or weighted KL divergence measure. The proposed method could also reduce the acoustic model size by 50% with less than a 1.5% increase in error rate compared to a baseline system.

계층 분리 알고리즘에 의한 부품 그룹핑 및 셀 구성 (Parts grouping by a hierarchical divisive algorithm and machine cell formation)

  • 이춘식;황학
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1991년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 22-24 Oct. 1991
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    • pp.589-594
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    • 1991
  • Group Technology (GT) is a technique for identifying and bringing together related or similar components in a production process in order to take advantage of their similarities by making use of, for example, the inherent economies of flow production methods. The process of identification, from large variety and total of components, of the part families requiring similar manufacturing operations and forming the associated groups of machines is referred as 'machine-component grouping'. First part of this paper is devoted to describing a hierarchical divisive algorithm based on graph theory to find the natural part families. The objective is to form components into part families such that the degree of inter-relations is high among components within the same part family and low between components of different part families. Second part of this paper focuses on establishing cell design procedures. The aim is to create cells in which the most expensive and important machines-called key machine - have a reasonably high utilization and the machines should be allocated to minimize the intercell movement of machine loads. To fulfil the above objectives, 0-1 integer programming model is developed and the solution procedures are found. Next an attempt is made to test the feasibility of the proposed method. Several different problems appearing in the literature are chosen and the results air briefly showed.

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에탄올의 농도가 계피가 향기성분 용출에 미치는 영향 (Effect of Ethanol Concentration on Extraction of Vlolatile Components in Cinnamon)

  • 김나미;김영희
    • 한국식품영양학회지
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    • 제13권1호
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    • pp.45-52
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    • 2000
  • In order to select the optimum ethanol concentration for extraction of volatile components in cinnamon, the dried cinnamon was extracted with water and 30∼90% ethanol. The volatile components of cinnamon extracts were isolated by the simultaneous distillation extraction method using Likens and Nickerson's extraction apparatus, and analyzed by GC-MS. In cinnamon bark powder 45 components were detected and 21 components were identified. The major component of cinnamon bark powder was cinnamic aldehyde. In water extract of cinnamon, volatile components were not extracted sufficiently. The volatile components of cinnamon were increased with the increment of ethanol concentraction upto 70%. The volatile component of 70% ethanol extract showed similar pattern and amount to cinnamon bark powder. But in 90% ethanol extracts, the number and amount of volatile component were reduced. The above data suggested that 70% ethanol was the most effective solvent for volatile components extraction of cinnamon.

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한국 쌀과 일본 쌀의 물리화학적 특성 연구 (I) NIR을 사용한 한국 쌀과 일본 쌀의 품질 비교 (Comparison of Korean and Japanese Rice Cultivars in Terms of Physicochemical Properties (I) The Comparison of Korean and Japanese Rice by NIR and Chemical Analysis)

  • 김혁일
    • 동아시아식생활학회지
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    • 제14권2호
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    • pp.135-144
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    • 2004
  • A total of 40 Korean and Japanese rice varieties were evaluated for their main chemical components, physical properties, cooking quality, pasting properties, and instrumental measurements. Based on their quality evaluations, it was concluded that Korean and Japanese rice varieties were not significantly different in the basic components of NIR (Near Infra Red) data and the chemical analysis from the uncooked brown and milled rices. Korean rice had a little bit higher protein and amylose contents but much lower fat acidity than those of Japanese rice from the chemical analysis. From all the data of three different kinds of NIR methods, Korean and Japanese milled rice were very similar except the taste score. Japanese rice showed a slightly higher taste score, a little bit higher lightness and whiteness, but lower yellowness and redness than Korean one. From all those data of NIR and the chemical analysis, Korean and Japanese rices had very similar components except the fat content.

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연결특성함수를 이용한 문서화상에서의 영역 분리와 문자열 추출 (Segmentation of region strings using connection-characteristic function)

  • 김석태;이대원;박찬용;남궁재찬
    • 한국통신학회논문지
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    • 제22권11호
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    • pp.2531-2542
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    • 1997
  • This paper describes a method for region segmentation and string extractionin documents which are mixed with text, graphic and picture images by the use of the structural characteristic of connceted components. In segmentation of non-text regionas, with connection-characteristic functions which are made by structural characteristic of connected components, segmentation process is progressed. In the string extraction, first we organize basic-unit-region of which vertical and horizontal length are 1/4 of average length of connection components. Second, by merging the basic-unit-regions one other that have smaller values than a given connection intensity threshold. Third, by linking the word blocks with similar block anagles, initial strings are cresed. Finally the whold strings are generated by merging remaining word blocks whose angles are not decided, if their height and prosition are similar to the initial strings. This method can extract strings that are neither horizontal nor of various character sizes. Through computer exteriments with different style documents, we have shown that the feasibility of our method successes.

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슬래그 원료를 사용해서 제조된 유리섬유의 점탄성 특성 (Visco-Elastic Properties of Glass Fiber Manufactured by Slag Material)

  • 이지선;김선욱;라용호;이영진;임태영;황종희;전대우;김진호
    • 한국전기전자재료학회논문지
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    • 제32권6호
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    • pp.477-482
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    • 2019
  • This study investigated the influence of the viscoelastic property of slag when producing glass fiber, MFS631 with 60% of manganese slag, 30% of steel slag, and 10% of silica stone. To fabricate the MFS631 glass bulk, slag materials were placed in an alumina crucible, melted at $1,550^{\circ}C$ for 2 h, and then annealed at $600^{\circ}C$ for 2 h. It was found that glass is non-crystalline through X-ray diffraction analysis. MFS631 fiber was produced at speed in the range of 100~300 rpm at $1,150^{\circ}C$. The loss modulus (G") and storage modulus (G') of the produced glass fiber were evaluated at high temperatures. G' and G" of MFS631 were greater than $893^{\circ}C$, and the modulus value was 136,860 pa. This is similar to the results of a general E-glass fiber graph. Therefore, it was concluded that its spinnability is similar to that of E-glass fiber; therefore, it can be commercialized.