• Title/Summary/Keyword: Material Representation

검색결과 214건 처리시간 0.021초

임의 형상의 복합재 모델링을 위한 CSG 기반 표현 (CSG-based Representation for Free-form Heterogeneous Object Modeling)

  • 신기훈;이진구
    • 한국CDE학회논문집
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    • 제11권4호
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    • pp.235-245
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    • 2006
  • This paper proposes a CSG-based representation scheme for heterogeneous objects including multi-material objects and Functionally Graded Materials (FGMs). In particular, this scheme focuses on the construction of complicated heterogeneous objects guaranteeing desired material continuities at all the interfaces. In order to create various types of heterogeneous primitives, we first describe methods for specifying material composition functions such as geometry-independent, geometry-dependent functions. Constructive Material Composition (CMC) and corresponding heterogeneous Boolean Operators (e.g. material union, difference, intersection. and partition) are then proposed to illustrate how material continuities are dealt with. Finally, we describe the model hierarchy and data structure for computer representation. Even though the proposed scheme alone is sufficient for modeling all sorts of heterogeneous objects, the proposed scheme adopts a hybrid representation between CSG and decomposition. That is because hybrid representation can avoid the unnecessary growth of binary trees.

물성의 재-현으로서의 건축 - 젬퍼의 피복에서 헤르족과 드 뮈롱의 표면으로 - (Architecture as Re-Presentation of Corporeality -From G. Semper's Bekleidung to Herzog & de Meuron's Surface-)

  • 정만영
    • 건축역사연구
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    • 제14권1호
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    • pp.107-122
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    • 2005
  • The purpose of this study is to analyse Herzog & de Meuron's surface, which represents contemporary architectural trends toward surface. Semper's Bekleidung theory and the important architectural theories about surface were compared according to the conceptual opposition between representation and re-presentation, which is borrowed from Kastern Harris, and again Martin Heidegger. Representation means a sort of translation into a different medium. It doesn't preserve the material identity of what it represent. Re-presentation, however, celebrates the material employed. The tension between representation and re-presentation have activated the architectural history Contemporary architects have emphasized re-presentation at the expense of representation. This trends relate with digital technology, which demands surface or skin independent from depth or interior. Buildings that deserve to be called works of architecture invite us to attend to material in a different way Re-presenting its materials, the work of architecture reveals its being. Such revelation requires that materials work in a way that invites us to step back from our usual involvement with things. It's the poetics of re-presentation, which is emboded in the Herzog & de Meuron's architectural works.

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현대패션디자인에 나타난 비표상성 (Non-Representation Expressed in Contemporary Fashion Design)

  • 임민정
    • 한국의상디자인학회지
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    • 제25권1호
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    • pp.153-168
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    • 2023
  • Non-representation creates difference and change that can be used as a creative design method that satisfies contradictory requirements for similarity and differentiation. This study drew upon the characteristics of the concept of non-representation expressed in contemporary art and architecture, in which Gilles Deleuze's philosophical thinking was reflected, and analyzed the non-representation depicted in contemporary fashion. The non-representation expressed in contemporary art and architecture is as follows. Non-representation of delaying becoming focuses on reverting to preexisting objects and redefining traditional meaning, thereby delaying the representation of latent meaning. Non-representation of non-becoming removes existing values and typical forms and expresses amorphousness. Non-representation of becoming by repetition or reiteration realizes the difference caused by the passage of time by repeating or overlapping shapes. Non-representation of becoming expresses the transformation of space by flowing through time rather than by actual movement. Non-representation in contemporary fashion shows the following expression characteristics. First, the non-representation of deferring becoming deconstructs the traditional values and forms of clothing and expresses designs by displacement or juxtaposition. Second, the non-representation of non-becoming is expressed concepts unrelated to the body and focus upon amorphous objects that do not become concretized forms. Third, generative non-representation by repetition and overlap expresses the possibility of change by overlapping clothing items or details expressed by repeating segmented objects. Fourth, generative non-representation by movement reproduces the meaning of space and time by moving the shape of the clothing or visually changing the surface of the material of clothing. As a result of the study, the non-representation shown in contemporary fashion aims for versatility to conform to social changes. This study provides new insight into the fashion design method by increasing the understanding of the cocnept of non-representation and showing its potential.

유전체 봉이 삽입된 원통형 공동 공진기에서의 non-decaying 모드 해석을 이용한 공진 모드 구분 (A Resonant Mode Identification in Cylindrical Cavity Resonators with Concentric-rod using Non-decaying Mode Analysis)

  • 이원희;김태신;강민우;구경완;허정
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 하계학술대회 논문집
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    • pp.1069-1072
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    • 2001
  • We described a method resonant mode identification in dielectric-rod loaded cylindrical cavity resonators. Resonant frequency of dielectric loaded cavity is calculated by analyzing the characteristic equation. The characteristic equation is solved by using the ContourPlot graph of Mathematica. As the result of comparing calculation value and experimental value of resonant frequencies, we know that the field representation of non-decaying mode is exact. The contour graph method is not a method using approximated representation of electromagnetic field variation at the outer area of dielectric in the resonators but a method using exact representation.

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유전체 디스크가 삽입된 원통형 공동 공진기에서의 공진 모드 구분에 관한 연구 (A Study on the Resonant Mode Identification in the Dielectric-disc Loaded Cylindrical Cavity Resonatorsv)

  • 이원희;김태신
    • 한국전기전자재료학회논문지
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    • 제15권1호
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    • pp.37-45
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    • 2002
  • We described a method of resonant mode identification in dielectric-disc loaded cylindrical cavity resonators. The characteristic equations are solved using the ContourPlot graph of Mathematica. Contour graph method uses graphical method. It is comparable with numerical method. The numerical method is very difficult mode identification. The analysis is based on the approximated electromagnetic representation which is only concentrated on the calculation of resonant frequencies, and a mode identification of resonant frequencies has not been covered. However, It is possible to calculate precise resonant frequencies and to identify the mode of resonant frequencies using the contour graph method. The contour graph method is not a method using approximated representation of electromagnetic field variation at the outer area of dielectric in the resonators. It is a method using enact representation.

지구 기반 관점의 시각 자료가 초등학교 5학년 학생들의 공간 표상에 미치는 영향 탐색 (Exploring Effects of a Visual Material Driven by Earth-Based Perspectives on the Spatial Representation of 5th Graders)

  • 김형진;정성환;신명경;권난주;이규호
    • 과학교육연구지
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    • 제46권2호
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    • pp.151-164
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    • 2022
  • 2015 개정 과학 교육과정의 6학년 1학기 교과서에서는 일상적으로 관측되는 천문 현상인 '낮과 밤'이 생기는 원인에 대해 설명하고 있다. 교과서상에서는 낮과 밤이 생기는 원인을 설명하기 위해 우주 기반 관점의 시각 자료만 사용되고 있다. 본 연구에서는 학생들에게 지구 기반 관점의 시각 자료를 추가로 제시하였을 때 지구 기반 관점과 우주 기반 관점의 공간 표상 형성에 어떤 변화가 있는지 알아보고자 하였다. 연구 결과 다음과 같은 결론을 얻을 수 있었다. 첫째, 학생들에게 지구 기반 관점의 시각 자료를 제시하였을 때 학생들의 지구 기반 관점은 물론 우주 기반 관점의 공간 표상 또한 변화시킬 수 있다. 둘째, 지구 기반 관점의 시각 자료가 학생들의 공간 표상 유형이 여러 측면에서 달라질 수 있는 가능성을 확인하였다. 셋째, 같은 지구 기반 관점의 시각 자료를 학생들에게 제시하더라도 성별, 공간 표상의 수준에 따라 각 관점의 공간 표상에 미치는 효과가 다르게 나타난다.

A Flexible and Expandable Representation Framework for Computational Science Data

  • Kim, Jaesung;Ahn, Sunil;Lee, Jeongchoel;Lee, Jongsuk Ruth
    • 인터넷정보학회논문지
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    • 제21권3호
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    • pp.41-51
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    • 2020
  • EDISON is a web-based platform that provides easy and convenient use of simulation software on high-performance computers. One of the most important roles of a computational science platform, such as EDISON, is to post-process and represent the simulation results data so that the user can easily understand the data. We interviewed EDISON users and collected requirements for post-processing and represent of simulation results, which included i) flexible data representation, ii) supporting various data representation components, and iii) flexible and easy development of view template. In previous studies, it was difficult to develop or contribute data representation components, and the view templates were not able to be shared or recycled. This causes a problem that makes it difficult to create ecosystems for the representation tool development of numerous simulation software. EDISON-VIEW is a framework for post-processing and representing simulation results produced from the EDISON platform. This paper proposes various methods used in the design and development of the EDISON-VIEW framework to solve the above requirements and problems. We have verified its usefulness by applying it to simulation software in various fields such as material, computational fluid dynamics, computational structural dynamics, and computational chemistry.

파놉티콘적 재현에 나타난 시각성의 여러 측면들: 벤쌈, 벤더, 프리드, 메이휴 (Considering Issues of Vision in Panoptical Representation: Bentham, Bender, Fried, and Mayhew)

  • 신희섭
    • 미술이론과 현장
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    • 제7호
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    • pp.189-240
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    • 2009
  • This essay aims to develop a critical approach of interpretation in examining the panoptical condition of representation that is said to permeate the tradition of modern realism in novels and paintings. In defining this approach, I am interested in the problem or inability of panoptical representation to tell a coherent story of solitude(solitary confinement, isolation, self-absorption, etc.) in a range of texts from prison documents to paintings and novels, and also what might occasion such an inability including social, material, or stylistic contradictions and conflicting epistemological angles. This task potentially anticipates a trajectory of readings and investigations that cuts through the history of panoptical representation, which is outside the scope of this essay. In this writing, I will engage in a series of debates with what I consider as major theories and views of panoptical representation offered by Jeremy Bentham, John Bender, and Michael Fried. Based on this, I will formulate a conceptual or methodological frame of discourse that would envisage an anti-panoptical approach of interpretation. As an attempt to validate this formulation, I will offer a reading of Henry Mayhew's Criminal Prisons of London and Scenes of Prison Life(1862), a case of panoptical representation that produces a peculiar sense of ambivalence while accounting for sites of penal solitude.

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TV 보도 영상의 서사구조과 의미구조: '9.11 참사' 보도의 영상에 대한 기호학적 분석을 중심으로 (Narrative and Meaning Structure of Pictures in TV Reporting: A Semiological Study on Korean TV News Coverage on '9.11 Disaster' of U.S.)

  • 백선기
    • 한국언론정보학보
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    • 제20권
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    • pp.57-109
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    • 2003
  • 본 연구는 TV 보도에 있어서 영상화면의 서사구조와 의미구조를 밝히고자 한 것이다. TV 보도는 전통적인 언어기사와 영상화면의 복합체로 이루어지는데, 과거에는 영상화면은 언어기사의 단순한 부가물로 간주되었었다. 그러나 현재는 영상화면이 보다 더 중요하게 인식되고 있다. 그렇다면 이러한 영상화면이 지니는 의미는 어떻게 구현되는가 하는 것이 주관심사이다. 따라서 미국에서 발생한 '9 11참사'에 대한 우리 TV 보도를 분석하였다. 그 결과, 영상화면은 언어기사와 유사하게 일정한 서사구조로 이루어지고 있으며, 그러한 서사구조는 특정한 의미를 표출하게 됨을 발견할 수 있었다. 둘째, 영상화면의 의미는 경우에 따라서는 언어기사의 의미를 넘어서는 정도로 표출하고 있으며, 영상화면의 의미가 언어기사의 의미보다도 더욱 중요하게 소구되고 있기도 하다. 셋째, 영상화면이 표현하는 의미는 언어기사가 지니고 있는 의미의 범위, 상상력, 한계 등을 설정해주고 있다. 넷째, 영상화면이 표출하고자 하는 이미지도 언어체계로 구상되기도 하고, 언어체계로 해석되기도 한다는 점을 발견할 수 있었다.

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Two-Phase Genetic Algorithm for Solving the Paired Single Row Facility Layout Problem

  • Parwananta, Hutama;Maghfiroh, Meilinda F.N.;Yu, Vincent F.
    • Industrial Engineering and Management Systems
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    • 제12권3호
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    • pp.181-189
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    • 2013
  • This paper proposes a two-phase genetic algorithm (GA) to solve the problem of obtaining an optimum configuration of a paired single row assembly line. We pair two single-row assembly lines due to the shared usage of several workstations, thus obtaining an optimum configuration by considering the material flow of the two rows simultaneously. The problem deals with assigning workstations to a sequence and selecting the best arrangement by looking at the length and width for each workstation. This can be considered as an enhancement of the single row facility layout problem (SRFLP), or the so-called paired SRFLP (PSRFLP). The objective of this PSRFLP is to find an optimal configuration that seeks to minimize the distance traveled by the material handler and even the use of the material handler itself if this is possible. Real-world applications of such a problem can be found for apparel, shoe, and other manual assembly lines. This research produces the schematic representation solution using the heuristic approach. The crossover and mutation will be utilized using the schematic representation solution to obtain the neighborhood solutions. The first phase of the GA result is recorded to get the best pair. Based on these best matched pairs, the second-phase GA can commence.