• 제목/요약/키워드: Material Classification

검색결과 679건 처리시간 0.033초

Mapping the Terms of Medicinal Material and Formula Classification to International Standard Terminology

  • Kim, Jin-Hyun;Kim, Chul;Yea, Sang-Jun;Jang, Hyun-Chul;Kim, Sang-Kyun;Kim, Young-Eun;Kim, Chang-Seok;Song, Mi-Young
    • International Journal of Contents
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    • 제7권4호
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    • pp.108-115
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    • 2011
  • The current study aims to analyze the acceptance of International Standard Terminology (IST) related to herbs and formulas used in Korea. It also intends to examine limitations of each term source by linking texts for herbal medicine research and formula research used in schools of oriental medicine with medicinal substance-formula classification names within the IST framework. This study examined 64 medicinal classification names of IST, including synonyms, 41 formula classification names, 65 classification names of "Herbal Medicine Study," 89 medicinal classification names of "Shin's Clinical Herbal Medicine Study," and lastly 83 formula classification names of "Formula Study." Data on their chief virtue, efficacy and characteristics as medicinal substances were extracted from their definitions, and such data were used to perform Chinese character-English mapping using the IST. The outcomes of the mapping were then analyzed in terms of both lexical matching and semantic matching. In terms of classification names for medicinal substances, "Herbal Medicine Study" had 60.0% lexical matching, whereas "Shin's Clinical Herbal Medicine Study" had 48.3% lexical matching. When semantic matching was also applied, "Herbal Medicine Study" showed a value of 87.7% and "Shin's Clinical Herbal Medicine Study" 74.2%. In terms of formula classification names, lexical matching was 28.9% of 83 subjects, and when semantic matching was also considered, the value was 30.1%. When the conceptual elements of this study were applied, some IST terms that are classified with other codes were found to be conceptually consistent, and some terms were not accepted due to different depths in the classification systems of each source.

공장건축물의 친환경 건축계획을 위한 분류체계 및 계획요소개발에 관한 연구 (A Study on the Development of Category and Items for Environmentally Friendly Architectural Planning of Factory)

  • 류수훈
    • KIEAE Journal
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    • 제9권4호
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    • pp.3-10
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    • 2009
  • It is not an overstatement to say the factory are the number one cause in creating environmental load. However, only a few studies have been done upto this date on environmentally friendly factory. Thus, This study is to present the characteristics of environmentally friendly factory. A survey of current literatures and cases show the characteristics of environmentally friendly factories and buildings and environment assessment method and plan. To better measure the environmentally friendly qualities as written in literature across the globe, classification system was constructed. The classification system was made and important factors were found based on the precedent paper on environmentally friendly building plan and environment assessment method at building and cases and abroad in the literature review. The classification used 4 different sectors : Land & Transportation, Architectural Planning Technique, Environment & Equipment, Energy & Material. Within these 4 sectors 33 discrete factors are applied to the factory according to literature and case review and specialist advice.

원단의 시각적 온도감 (The Visual Temperature of Textile)

  • 오지연;박영경
    • 감성과학
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    • 제21권1호
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    • pp.155-164
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    • 2018
  • 온도감은 촉각과 시각에 의해서 느낄 수 있는 감각이다. 하지만 온도감에 대한 개념을 시각적 온도감과 촉각적 온도감의 개념을 함께 활용되는 경우는 드물다. 이 연구에서는 촉각을 통해 느끼는 온도감과 시각을 통해 느끼는 온도감에 대해 색채와 재질 특성에 따른 시각적 온도감의 관계를 알아보았다. 색채와 재질의 특성을 포함할 수 있는 샘플로 원단을 선택하였다. 15-16가지 종류로 Y계열, R계열, B계열, G계열 총 61개의 샘플로 실험을 진행하였다. 분석 방법은 Yellow, Red, Blue, Green의 색을 떠올렸을 때 느끼는 색에 대한 온도감을 분석한 뒤 각 색상별로 원단의 촉각적 분류 및 시각적 분류에 따른 시각적 온도감에 대해 알아보았다. 그리고 무게, 두께, 요철에 따른 시각적 온도감의 상관관계를 알아보았다. 그 결과 동일한 원단에서는 색 온도감에 따라 Cool과 Warm으로 느끼는 원단의 수가 차이가 났다. 그렇지만 원단의 분류마다 시각적 온도감은 다르게 나타났다. 특히, 얇은, 비치는 원단과 무광택 원단에서 두드러지게 나타났다. 무게, 두께, 요철과 온도감의 관계에서는 무게와 관련을 보인 원단 분류는 딱딱한, 무광택 원단의 분류이며, 두께와 관련을 보인 원단 분류는 얇은, 비치는 원단이다.

효율적인 위험물 관리를 위한 매칭테이블 구축 및 코드화 방안 (Developing Matching Table and Classification Code for Efficient Management of HAZMAT)

  • 안찬기;정성봉;박민준;장성용
    • 대한안전경영과학회지
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    • 제14권3호
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    • pp.143-150
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    • 2012
  • In Korea more than 38,000 types of hazardous material(HAZMAT) are distributed, accordingly the accidents during transportation are also increasing. The agencies related to HAZMAT such as Environment Ministry, National Emergency Management Agency and National Police Agency have their own regulations. However, the classification criteria of HAZMAT are different to each other, which causes many problems in response to transportation accidents. In this study the classification standard of HAZMAT and the classification code using CAS number are suggested to manage HAZMAT efficiently. Through efficient management and standard classification of HAZMAT, the rapid and systematic response to transportation accidents related to HAZMAT is expected to be possible.

Support Vector Machine Model to Select Exterior Materials

  • Kim, Sang-Yong
    • 한국건축시공학회지
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    • 제11권3호
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    • pp.238-246
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    • 2011
  • Choosing the best-performance materials is a crucial task for the successful completion of a project in the construction field. In general, the process of material selection is performed through the use of information by a highly experienced expert and the purchasing agent, without the assistance of logical decision-making techniques. For this reason, the construction field has considered various artificial intelligence (AI) techniques to support decision systems as their own selection method. This study proposes the application of a systematic and efficient support vector machine (SVM) model to select optimal exterior materials. The dataset of the study is 120 completed construction projects in South Korea. A total of 8 input determinants were identified and verified from the literature review and interviews with experts. Using data classification and normalization, these 120 sets were divided into 3 groups, and then 5 binary classification models were constructed in a one-against-all (OAA) multi classification method. The SVM model, based on the kernel radical basis function, yielded a prediction accuracy rate of 87.5%. This study indicates that the SVM model appears to be feasible as a decision support system for selecting an optimal construction method.

머신러닝을 이용한 반도체 웨이퍼 평탄화 공정품질 예측 및 해석 모형 개발 (Predicting and Interpreting Quality of CMP Process for Semiconductor Wafers Using Machine Learning)

  • 안정언;정재윤
    • 한국빅데이터학회지
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    • 제4권2호
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    • pp.61-71
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    • 2019
  • 반도체 웨이퍼의 표면을 연마하여 평탄화하는 Chemical Mechanical Planarization(CMP) 공정은 다양한 화학물질과 물리적인 기계장치에 의한 작용을 받기 때문에 공정을 안정적으로 관리하기 힘들다. CMP 공정에서 품질 지표로는 Material Removal Rate(MRR)를 많이 사용하고, CMP 공정의 안정적 관리를 위해서는 MRR을 예측하는 것이 중요하다. 본 연구에서는 머신러닝 기법들을 이용하여 CMP 공정에서 수집된 시계열 센서 데이터를 분석하여 MRR을 예측하는 모형과 공정 품질을 해석하기 위한 분류 모형을 개발한다. 나아가 분류 결과를 분석하여, CMP 공정 품질에 영향을 미치는 유의미한 변수를 파악하고 고품질을 유지하기 위한 공정 조건을 설명한다.

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기중방전의 특성분석과 Kohonen network에 의한 방전원의 패턴분류 (Properties and classification of air discharge by Kohonen network)

  • 강성화;박영국;이광우;김완수;이용희;임기조
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1999년도 춘계학술대회 논문집
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    • pp.704-707
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    • 1999
  • Partial discharge(PD) in air insulated electric power systems is responsible for considerable power lossesfrom high voltage transmission lines. PD in air often leads to deterioration of insulation by the combined action of the discharge ions bombarding the surface and the action of chemical compounds that are formed by the discharge and may give rise to interference in ommunication systems. PD can indicate incipient failure. Thus understanding and classification of PD in air is very important to discern source of PD. In this paper, we investigated PD in air by using statical method. We classified air discharge with corona, surface discharge and cavity discharge by source of discharge. we used the mean pulse-height phase distribution $H_{qmean}(\psi)$, the max pulse-height phase distribution $H_{qmax}(\psi)$ , the pulse count phase distribution $H_n(\psi)$ and the max pulse height vs. repetition rate $H_{q}(n)$ for analysis PD pattern. We used statistical operators, such as skewness(S+. S-1, kurtosis(K+, K-), mean phase(AP+. AP-), cross-correlation factor(CC) and asymmetry from the distribution.

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영상신호처리 기법을 이용한 고압전동기 고정자권선 절연결함신호 분류 (Classification of Insulation Fault Signals for High Voltage Motors Stator Winding using Image Signal Process Technique)

  • 박재준;김희동
    • 한국전기전자재료학회논문지
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    • 제20권1호
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    • pp.65-73
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    • 2007
  • Pattern classification of single and multiple discharge sources was applied using a wavelet image signal method in which a feature extraction was applied using a hidden sub-image. A feature extracting method that used vertical and horizontal images using an MSD method was applied to an averaging process for the scale of pulses for the phase. A feature extracting process for the preprocessing of the input of a neural network was performed using an inverse transformation of the horizontal, vertical, and diagonal sub-images. A back propagation algorithm in a neural network was used to classify defective signals. An algorithm for wavelet image processing was developed. In addition, the defective signal was classified using the extracted value that was quantified for the input of a neural network.

건설 CALS/EC 환경에서의 STEP 데이터 활용방안에 관한 연구 - 도면정보와 자재정보 연계 중심으로 - (A Study on the Usage of STEP data on the Construction CALS/EC Environment - Focusing on linking the Drawing Information and Material Information -)

  • 서종철;김인한
    • 한국전자거래학회지
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    • 제8권1호
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    • pp.121-139
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    • 2003
  • Currently, it is not popular to use the STEP based product information in the construction drawing files, in spite of the importance and possibility of using various product data in drawing files on the CALS/EC environment. This paper aims to demonstrate a construction drawing information management system based on ISO 10303/STEP. To achieve this aim, the authors have analyzed the current construction drawing information classification hierarchy widely used for domestic and international, and examined the material data connection mechanism within CAD drawing data, and finally investigated the management systems for construction documentations and drawings in a public companies. Therefore, the expected benefit of the proposed system is that STEP drawing information management will be done standardization and the information of STEP construction drawing can be managed, shared and supported design business through materials data connection.

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XLPE 전력용 케이블 시편의 부분방전원 분류 (PD Classification by Neural Networks in Specimen of XLPE Power Cable)

  • 박성희;이강원;강성화;임기조
    • 한국전기전자재료학회논문지
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    • 제17권8호
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    • pp.898-903
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    • 2004
  • In this paper, neural networks is studied to apply as a PD source classification in XLPE power cable specimen. For treeing discharge sources in the specimen, three defected models are made. And these data making use of a computer-aided discharge analyser, statistical and other discharge parameters is calculated to discrimination between different models of discharge sources. And also these parameter is applied to classify PD sources by neural networks. Neural Networks has good recognition rate for three PD sources.