• 제목/요약/키워드: evolutionary transformation

검색결과 31건 처리시간 0.02초

진화주의 기술경제학과 '왈라스 함정' (Can the Evolutionary Economics Solve the Walras' Trap?)

  • 김태억
    • 기술혁신연구
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    • 제13권1호
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    • pp.213-246
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    • 2005
  • Despite of the impressive progress made in the Evolutionary techno-economics during the last two decades, there have been very little, if not at all, theoretical advancement in explaining an endogenous mechanism of transforming a technological paradigm within self-perpetuatingstructural dynamics. The question poorly attempted was raised by Schumpeter a century ago in his effort to overcome the well-known 'Walras' trap'. Although there have been increasing number of researchers recently tackling the issue quite seriously from within the Evolutionary school, I see it that radical reconstruction of the basic principle of Evolutionary research framework is urgently needed to solve the century long fundamental question, from evolutionary approach to transformational approach. In the paper, I will show the theoretical feasibility of explaining an endogenous mechanism of paradigm transformation, relying upon the concept of localized dynamics and the concept of morphogenetic structuration. It should be emphasized that there must be aendogenous process of deepening structural Instability generated in the process of economic coordination to secure efficient circular flow. The concept of development bottleneck initiated by the Baumol's cost disease could be regarded as one of the important source of such mechanism. Unfortunately, however, it is a brief conceptual description presented in the paper rather than a comprehensive analytical model, due to the space limitation imposed.

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곡선의 형태학적 성장과 변환의 제어 방법 (Control of Morphological Development and Transformation of Curves)

  • 이주행;박형준
    • 한국CDE학회논문집
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    • 제12권5호
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    • pp.354-365
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    • 2007
  • We present novel methods to generate a sequence of shapes that represents the pattern of morphological development or transformation of Bezier curves. The presented methods utilize the intrinsic geometric structures of a Bezier curve that are derived from rib and fan decomposition (RFD). Morphological development based on RFD shows a characteristic pattern of structural growth of a Bezier curve, which is the direct consequence of development path defined by fans. Morphological transformation based RFD utilizes development patterns of source and target curves to mimic the theory of evolutionary developmental biology: although the source and target curves are quite different in shapes, we can easily find similarities in their younger shapes, which makes it easier to set up feature correspondences for blending them. We also show that further controls on base transformation for intensity of feature blending, and extrapolation can compensate the immaturity of blended curves. We demonstrate the experimental results where transformation patterns are smoother and have unique geometric style that cannot be generated using conventional methods based on multi-linear blending.

프랭크 게리의 조형 언어의 변천과정에 대한 분석 연구 (An Analytical Study on the Transformation Process of the Design Language of Frank O. Gehry)

  • 이영화
    • 디자인학연구
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    • 제16권2호
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    • pp.219-232
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    • 2003
  • 본 연구는 조형언어의 변화가 심하여 일관성을 찾기 어려운 작가로 알려진 프랭크 게리의 조형작업 및 언어의 변천과정에 대한 분석 연구이다. 게리의 작업은 일관성이 없이 "우연"이나 "혁명적 변화" 혹은 "즉흥성"에만 의존하는 것으로 알려져 왔으나, 본 연구를 통하여 연구자는 그의 작업 및 조형언어의 변화는 오히려 일관된 주제를 가지고 하나의 방향으로 "필연적인 진화"를 하고 있음을 주장하였다. 게리의 작업시기를 4 시기로 분류하고 공시적, 통시적으로 그 특징들을 고찰, 분석한 결과 게리는 공시적 상황들을 주제로 하고 그것을 메타포를 통하여 가시화하기 위하여 재료와 형태를 수단으로 이용하고 있음을 알 수 있었다. 따라서 본 연구자는 이러한 필연적인 진화과정으로서의 형태언어를 지닌 게리를 해체주의자로 분류하는 것은 오류임을 지적하였다. 형태언어를 지닌 게리를 해체주의자로 분류하는 것은 오류임을 지적하였다.

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학습조직의 OJF모형과 적용에 관한 사례 연구 (The Study of OJF Model of Learning Organization and practices about its application)

  • 이경환;최진욱;김창은;조남채
    • 대한안전경영과학회지
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    • 제12권3호
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    • pp.271-281
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    • 2010
  • In an industrial Era, OJT(On-the-Job Training) has been accepted as the field learning. But in a breaking up era, traditional field training needs to change and make an evolutionary model. Also, we need to make evolutionary model for various changing ways and means and need means to maximize the transformation of learning by operating learning organization. In knowledge based society, as people work and learn new knowledge in order to pass the experience knowledge and capabilities, they are not the traditional relationship between trainer and trainee but maximize work and learning, development and performance through several different ways. So, the study about new learning model is needed because the learning is creating the value and makes low cost and high efficiency about the elements of cost and time. We study the evolutionary model, OJF(On-the-Job Facilitating) - new learning methodology - through operating learning organization in S Electronics and its application practices.

다중재료 구조물의 위상 최적화를 위한 재료혼합법의 개발 (Development of a Material Mixing Method for Topology Optimization of Multiple Material Structures)

  • 한석영;이수경
    • 대한기계학회논문집A
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    • 제28권6호
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    • pp.726-731
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    • 2004
  • This paper suggests a material mixing method to mix several materials in a structure. This method is based on ESO(Evolutionary Structural Optimization), which has been used to optimize topology of only one material structure. In this study, two criterions for material transformation and element removal are implemented for mixing several materials in a structure. Optimal topology for a multiple material structure can be obtained through repetitive application of the two criterions at each iteration. Two practical design examples of a short cantilever are presented to illustrate validity of the suggested material mixing method. It is found that the suggested method works very well and a multiple material structure has more stiffness than one material structure has under the same mass.

진화적 구조 최적화를 이용한 재료 혼합법의 개발 (Development of a Material Mixing Method using ESO)

  • 한석영;이수경;신민석
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 2003년도 추계학술대회
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    • pp.259-264
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    • 2003
  • This paper suggests a material mixing method to mix several materials in a structure. This method is based on ESO(Evolutionary Structural Optimization), which has been used to optimize topology of only one material structure. In this study, two criterions for material transformation and element removal are implemented for mixing several materials in a structure. Optimal topology for a multiple material structure can be obtained through repetitive application of the two criterions at each iteration. Two practical design examples of a short cantilever are presented to illustrate validity of the suggested material mixing method. It is found that the suggested method works very well and a multiple material structure has more stiffness than one material structure has under the same mass.

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국내 지자체 공공청사의 공간조직 변화과정에 관한 연구 (A Study on the Evolution of the Spatial Organization appeared in Local Government Buildings in Korea)

  • 최윤경;현창용
    • 한국실내디자인학회논문집
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    • 제20권6호
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    • pp.36-43
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    • 2011
  • The study presupposes that, ever since its modernization, the Korean local government buildings have undergone an evolutionary process of their spatial organizations and the process can be analyzed in terms of increased publicness of architectural space. For the purpose, fifteen examples of local government buildings in Korea are selected and analyzed in terms of their plans converted into spatial diagrams measuring accessibility depth. Within these analytical diagrams, some quantitative measures such as permeability and visual connection, and the number of decision making points that visitors face on the way to their targets. The study analyzes these analytic measures of selected samples which are categorized into three chronological groups in order to search any evolutionary tendency of spatial transformation. The analysis shows that the accessibility of public functions and presumably the publicness of the spatial organization of local government buildings has been increased. The results of the study implies that, to acquire architectural publicness in government buildings, not only the insertion of public programs but also the organization of open spatial structure is significant.

패션 제조 기업의 디지털 트랜스포메이션을 위한 인공지능 솔루션 개발 및 활용 현황 (Current Status of Development and Practice of Artificial Intelligence Solutions for Digital Transformation of Fashion Manufacturers)

  • 김하연;최우진;이유리;장세윤
    • 패션비즈니스
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    • 제26권2호
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    • pp.28-47
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    • 2022
  • Rapid development of information and communication technology is leading the digital transformation (hereinafter, DT) of various industries. At this point in rapid online transition, fashion manufacturers operating offline-oriented businesses have become highly interested in DT and artificial intelligence (hereinafter AI), which leads DT. The purpose of this study is to examine the development status and application case of AI-based digital technology developed for the fashion industry, and to examine the DT stage and AI application status of domestic fashion manufacturers. Hence, in-depth interviews were conducted with five domestic IT companies developing AI technology for the fashion industry and six domestic fashion manufacturers applying AI technology. After analyzing interviews, study results were as follows: The seven major AI technologies leading the DT of the fashion industry were fashion image recognition, trend analysis, prediction & visualization, automated fashion design generation, demand forecast & optimizing inventory, optimizing logistics, curation, and ad-tech. It was found that domestic fashion manufacturers were striving for innovative changes through DT although the DT stage varied from company to company. This study is of academic significance as it organized technologies specialized in fashion business by analyzing AI-based digitization element technologies that lead DT in the fashion industry. It is also expected to serve as basic study when DT and AI technology development are applied to the fashion field so that traditional domestic fashion manufacturers showing low growth can rise again.

D. melanogaster에 있어서 P Element를 이용한 rosy 유전자의 형질전환 (P Element-Mediated Transformation with the rosy Gene in Drosophila melanogaster)

  • 김욱
    • 한국동물학회지
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    • 제38권3호
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    • pp.340-347
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    • 1995
  • D. melanogaster를 대상으로 두 종류의 P element construct, 즉 Pc[(ry+)B]와 p[(ry+)$\Delta$SX9]을 사용한 형질전환 실험을 통하여 자율적 및 비자율적인 P element construct간의 vector로써의 효율성을 분석했다. 자율적인 P element 내에 rosy 유전자를 포함하고 있는 Pc[(ry+)B] construct를 진정 M 계통형인 ry506 돌연변이 계통에 주입시켰다. 또한 비자율적인 P element 내에 rosy 유전자를 포함하고 있는 p[(ry+)$\Delta$SX9] construct와 전이효소의 공급원으로써 p-$\Delta$2-3hs$\pi$ helper plasmid를 역시 같은 계통의 ry506 돌연변이 계통에 주입시켰다. Dechorination 방법에 의해 총 1143 embryo를 대상으로 microinjection 한 결과, 모두 35 계통의 형질전환된 정상형의 눈을 가진 계통을 얻었다. P element construct를 주입시킨 전체 1143 embryo 중에서 약 20% 정도가 성체로 부화되었으며, 부화된 개체 가운데 약 40% 정도가 눈 색깔이 거의 정상형과 같은 G0 transformant 로 나타났다. 그러나 생식력을 가진 G0 transformant의 약 40% 만이 G1 transformant로 나타남으로써 모두 35 계통의 transformant를 얻었다. 따라서 G0 단계에서 나타난 형질전환 현상에는 반드시 rosy transformant의 염색체 삽입에 의해서 만이 아니라 세포질내에서도 construct내의 rosy 유전자의 발현이 가능한 것으로 분석되었다. 또한 형질전환율에 있어서는 Pc[(ry+)B]와p[(ry+)$\Delta$SX9] construct 간에 유의한 차가 없는 것으로 나타났다. 이상의 결과로 볼 때, 실험 목적에 따라 자율적인 P element 또는 helper DNA를 이용한 비자율적인 P element를 효과적인 vector 로 선택 이용함으로써 특정 유전자를 곤충집단내로 침투 및 고정시킬 수 있다고 판단된다.

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저하된 로봇 비전에서의 물체 인식을 위한 진화적 생성 기반의 컬러 검출 기법 (Evolutionary Generation Based Color Detection Technique for Object Identification in Degraded Robot Vision)

  • 김경태;서기성
    • 전기학회논문지
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    • 제64권7호
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    • pp.1040-1046
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    • 2015
  • This paper introduces GP(Genetic Programming) based color detection model for an object detection of humanoid robot vision. Existing color detection methods have used linear/nonlinear transformation of RGB color-model. However, most of cases have difficulties to classify colors satisfactory because of interference of among color channels and susceptibility for illumination variation. Especially, they are outstanding in degraded images from robot vision. To solve these problems, we propose illumination robust and non-parametric multi-colors detection model using evolution of GP. The proposed method is compared to the existing color-models for various environments in robot vision for real humanoid Nao.