• Title/Summary/Keyword: Data Property

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Data Analysis Model using the Fuzzy Property Set (퍼지 속성 집합을 이용한 데이터 분석 모델)

  • 이진호;이전영
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1997.11a
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    • pp.252-255
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    • 1997
  • In this paper, we will propose the methodology of data analysis using the fuzzy property set model. In real world, the data can be represented with the object. $\theta$. and the property, $\pi$, and its has-property relation, P. Then, the conceptual space can be defined with the chosen properties. Each object has a unique location in the conceptual space. In Fuzzy mode, the fuzzy property, and fuzzy conceptual space can be redefined. To analyze data using the fuzzy property set model, the rough set need to be defined in the fuzzy conceptual space.

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A Study on the Procedures of Investigating Environmental Influences to Wooden Cultural Property.(A critical review) (환경이 목조문화재에 미치는 영향에 관한 조사)

  • Kim, You Sun
    • Journal of Conservation Science
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    • v.4 no.1 s.4
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    • pp.53-58
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    • 1995
  • In order to establish the procedures for investigating environmental influences to wooden cultural property, existing study data were surveyed and necessary steps for performing the investigation works were presented to be applied for the future works in this country. Environmental factors which influence to the conservation of wooden cultural property should first be studied for items concerned with their damage situations. On basis of these data, laboratory works to yield the standard value for each factor should be conducted by means of testing samples exposed under laboratory simulated environmental conditions. Outdoor measurements may be followed for samples exposed to the open air at the site of that property. These data may be compared with those of laboratory standard value and overall evaluation for the factor influencing mostly tn the damage status of that property may further be conducted. Referring data obtained in this investigation, necessary measures to be taken for conserving that property may be able to be established.

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Web-based Materials Property Database System (Web 기반 재료물성 데이터베이스 시스템)

  • Lee, W.K.;Baek, U.B.;Park, P.;Jung, I.H.;Kim, D.M.
    • Proceedings of the KSME Conference
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    • 2001.06a
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    • pp.126-131
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    • 2001
  • Materials property data are necessary to secure the reliability of failure prevention techniques such as inspection and remaining life assessment of civil infrastructure and industrial facilities. However, there is no properly collected data in Korea, and those foreign data are hard to use because of the scattering of the sources, the difference of standards, etc. In this paper, materials property database system which has been constructed at Korea Research Institute of Standards and Science is introduced. Constructed database contains 145,000 numeric data of materials property for 600 kinds of metals and can be retrieved on the internet. The database system provides graphical user interface-based information searching functions necessary for the life evaluation and safety analysis.

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A Cultural Property Priority Assessment Using Information Measure Technique (정보계측기법을 이용한 문화재 중요도 평가방안)

  • Jung, Nam-Su;Lee, Jeong-Jae
    • Journal of The Korean Society of Agricultural Engineers
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    • v.48 no.1
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    • pp.41-48
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    • 2006
  • In the evaluation of rural amenities, its properties are related with social, cultural, and environmental elements. In this study, Information Measure Model (IMM) and Cultural Property Priority Assessment Model (CPPAM) were developed adapting information measure model with text based surveying data. To apply developed model not only general properties but also specific surveyed data, Specific Information Gathering and Utilizing System (SIGUS) was constructed using the data in Dusan World encyclopedia. IMM shows priorities of cultural property by information in national-designated cultural properties. And CPPAM applied in surveying data in 2004 by Rural Resources Development Institute.

Free-Form Curve Interpolation Method for Shape Preservation (형태 보존성을 위한 자유 형태 곡선 보간 방법)

  • Lee, A-Ri;Park, Cheol-Ho;Sim, Jae-Hong
    • The Transactions of the Korea Information Processing Society
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    • v.6 no.3
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    • pp.758-765
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    • 1999
  • Shape-preserving property is the important method that controls the complex free form curve/surface. Interpolation method for the existed Shape-Preservation had problems that it has needed the minimization of a curvature-related functions for calculating single-valued data. Solving this problem, in this paper, it proposed to the algorithm of generalizing C piecewise parametric cubic that has shape-preserving property for both Single-value data and Multivalue data. When there are the arbitrary tangents and two data, including shape-preserving property, this proposed method gets piecewise parametric cubic polynomial by checking the relation between the shape-preserving property and then calculates efficiently the control points using that. Also, it controls the initial shape using curvature distribution on curve segments.

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BIM-based Property Management by Linking Maintenance with Financial Data for Commercial Building Projects

  • Shin, Hyeonju;Cha, Heesung
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.418-425
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    • 2022
  • For a commercial building, property managers play an important role in maximizing the benefit by reducing cost and increasing revenue in the operation and maintenance phase of the building. However, most of property managers are spending their time in monitoring facility managers who have little impact on cost reduction and maximization of operating profit. The industry practitioners have difficutlty in increasing the efficiency of thier work due to this work environment. In addition, both property managers(PMr) and facility managers(FMr) are dependent on the paper drawings and manuals, which can worsen the inefficiency and human errors are inevitable. This study aims to contribute to improvement of the current practice by developing a novel algorithm that autmatically links the facility information with 3D model, which can provide an efficient property management for commercial buildings.

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The high-rate brittle microplane concrete model: Part I: bounding curves and quasi-static fit to material property data

  • Adley, Mark D.;Frank, Andreas O.;Danielson, Kent T.
    • Computers and Concrete
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    • v.9 no.4
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    • pp.293-310
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    • 2012
  • This paper discusses a new constitutive model called the high-rate brittle microplane (HRBM) model and also presents the details of a new software package called the Virtual Materials Laboratory (VML). The VML software package was developed to address the challenges of fitting complex material models such as the HRBM model to material property test data and to study the behavior of those models under a wide variety of stress- and strain-paths. VML employs Continuous Evolutionary Algorithms (CEA) in conjunction with gradient search methods to create automatic fitting algorithms to determine constitutive model parameters. The VML code is used to fit the new HRBM model to a well-characterized conventional strength concrete called WES5000. Finally, the ability of the new HRBM model to provide high-fidelity simulations of material property experiments is demonstrated by comparing HRBM simulations to laboratory material property data.

Finite Element Analysis of BLDC Motor Characteristic according to Magnetic Property Measurement Methods (자성 측정 방법에 따른 BLDC 전동기의 전자계 특성해석)

  • Kim, Ji-Hyun;Ha, Kyung-Ho;Kwon, Oh-Yeoul;Cha, Sang-Yoon;Kim, Jae-Kwan
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.697-698
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    • 2008
  • This paper deals with finite element characteristic analysis of brushless DC motor according to magnetic property measurement methods. Magnetic property data for non-oriented (NO) electrical steel for electric motors are measured by the Epstein test which is considered as the international standards. Data from Epstein test may result in discrepancy from motor characteristic tests due to innate anisotropic property of NO electrical steel. Finite element analysis were performed for a BLDC motor by various measurement methods such as Epstein test, Ring test and single sheet test (SST), and calculated results were compared with considering anisotropic property conditions.

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An Empirical Study of Social Capital and Performance of Intellectual Property (사회적자본과 지식재산 성과에 관한 실증적 연구)

  • Park, Hoin;Lee, Jongmoo
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.12 no.4
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    • pp.123-134
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    • 2016
  • Social capitals are getting more important for management in enterprises, especially in small and medium sized enterprises(SMEs). The purpose of this study is to examine the effect of social capitals on the performance of intellectual property. For the empirical analysis, survey data were collected from 138 companies in one industry cluster, 34 companies in the other one. The data were compared using regression analysis. The findings confirm a positive influence of the conceptive social capital on the performance of intellectual property while there are no effect of structural and relational social capitals on the performance. These are different from the past researches. In addition, there is no difference between industrial types such as IT, BT, and NT in terms of the effect of social capitals on the performance of intellectual property. Also there is no difference between the two industry clusters.

New SMOLED Deposition System for Mass Production

  • Lee, J.H.;Kim, C.W.;Choi, D.K.;Kim, D.S.;Bae, K.B.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.407-410
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    • 2003
  • We will introduce our new concept deposition system for SMOLED manufacturing in this conference. This system is designed to deposit organic and metal material to downward to overcome the limit of substrate size and process tact time hurdle for OLED mass production, and is organized with organic deposition chamber, substrate pre-cleaning chamber, metal deposition chamber and encapsulation system. These entire process chambers are integrated with linear type substrate transfer system. We also compare our new SMOLED manufacturing system with conventional vacuum deposition systems, and show basic organic thin film property data, organic material deposition property data, and basic device property.

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