• 제목/요약/키워드: Knowledge-based Design

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직업군 분석을 통한 지식기반경제로의 진입 시점에 대한 연구 (Entry Point of a Knowledge-based Economy through Job-group Analysis)

  • 김희철;문영호
    • 기술혁신학회지
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    • 제18권2호
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    • pp.338-357
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    • 2015
  • 본 연구에서는 고용노동부의 '임금구조기본통계조사'와 '고용형태별근로실태조사 보고서'를 정량적으로 분석하여 지식기반경제로의 진입 시점에 대한 실증적 연구를 제시하고자 한다. 지식기반경제로의 진입 기준은 Bell과 Toffler의 정의를 통해, 정신노동자 수가 육체노동자 수를 능가하는 시점으로 정하였으며, 정신노동자를 지식정보직으로 분류하였다. Porat의 지식정보직 정의로부터 한국표준직업분류표상의 직업들을 지식정보직, 서비스직, 제조업직, 농어업산림직으로 직업분류를 수행하였다. 분석 결과 지식정보직의 노동자 수 구조변화와 연간임금액 구조변화를 통해 지식정보사회의 진입 시점이 1980년인 미국보다 20년 늦은 2000년임을 실증적으로 확인했다. 또한, 지식기반경 제에서의 직업분류별 경제기여도를 측정하여 지식정보직의 직업분류별 경제기여도가 가장 큰 것을 확인하였다.

Lagrange Multipliers에 의한 슬래브시스템의 신뢰성 최적설계 (Reliability Optimum Design of Slab System based on Lagrange Multipliers)

  • 김현석;이증빈;정철원
    • 한국구조물진단유지관리공학회 논문집
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    • 제1권1호
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    • pp.113-124
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    • 1997
  • Based on the recent developments of the reliability-based structural analysis and design as well as the extending knowledge on the probabilistic characteristics of load and resistances, the probability based design criteria have been successfully developed for many standards. Since the probabilistic characteristics depend highly on the local load and resistances, it is recognized to develop the design criterion compatible with domestic requirements. The existing optimum design methods, which are generally based on the structural theory and certain engineering exprience, do not realistically consider the uncertainties of load and resistances and the basic reliability concepts. This study is directed to propose a optimum design based Expected Total Cost Minimization on two-way slab system which could possibly replace optimum design based traditional provisions of the current code, based on the AFOSM reliablity theory.

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문항 반응 이론을 이용한 웹기반 교수 시스템의 진단 모듈의 설계 및 구현 (Design and Implementation of Diagnostic Module for Web based Tutoring System using Item Response Theory)

  • 이철환;한선관
    • 정보교육학회논문지
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    • 제5권2호
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    • pp.268-278
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    • 2001
  • 본 연구는 웹기반 교수 시스템을 이용하는 학습자의 지식 수준을 지능적으로 진단하기 위하여 문항 반응을 이용한 진단 모듈의 설계와 구현에 관하여 다룬다. 문항 반응 이론은 기존의 학습자 검사 방법처럼 전체 문항에서 정답 문항의 총점에 근거를 두고 학습자를 진단하는 것이 아니라 문항 하나 하나에 근거를 두고 학습자의 지식 수준을 검사하는 것이다. 기존의 웹기반 교수 시스템의 경우 학습자의 지식 수준은 고려하지 않고 검사의 총점 결과만을 가지고 진단한 뒤 그 결과를 토대로 이분법적인 학습을 진행하는 오류를 범하고 있다. 이는 학습자의 올바른 진단이 될 수 없으며 학습자 모델을 구성하기가 어려워 진보한 지능형 교수 학습 시스템에 적용하기 어렵다. 따라서 본 연구에서는 기존에 연구된 문항 반응 이론을 수학 학습에 응용하여 학습자의 지식 수준을 진단하기 위한 학습자 진단 모듈의 설계 및 구현에 대한 방향을 제시하고자 한다.

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지능형 제품설계 시스템 개발을 위한 자동변속기 레버 구조부의 기능분해 (Function Decomposition of Structural Part in Automatic Transmission Lever for the Development of Intelligent Product Design System)

  • 하상도;김원기;고희병;차성운
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2001년도 춘계학술대회 논문집
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    • pp.622-626
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    • 2001
  • Every design activity has a goal of satisfying a set of functional requirement. The commencement of a design, therefore, must have its foundation upon the identification of the functional requirements. Many of the design practices of the industrial examples can be categorized as design of small systems that are defined to have limited and fixed sets of functional requirements to be satisfied at all times. In the case of small systems it facilitates the construction of a knowledge-based system for a specific purpose to decompose the functional requirement and map ones in the lowest level into specific design features. When the number of design features is large, they need to be managed by groups. This paper suggests a grouping method for design process can be regarded as a series of selections of the predefined functional primitives according to the requirements and the preceding selections. An intelligent product design system for automatic transmission lever design is developed as an example.

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지식베이스를 이용한 작업자 증상 기반 화학물질 추정 시스템 설계 (Worker Symptom-based Chemical Substance Estimation System Design Using Knowledge Base)

  • 주용택;이동훈;신은지;유상우;신동일
    • 한국가스학회지
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    • 제25권3호
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    • pp.9-15
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    • 2021
  • 본 논문에서는 산업현장 화학물질 인체 접촉 증상 기반 지식베이스 구축 및 화학물질 추정 시스템 설계에 대한 연구이다. 미국NIH에서 제공하는 WISER 프로그램의 499개의 화학물질 접촉 증상 정보로 활용하였다. 지식베이스 구축을 위해 AllegroGraph 7.0.1 프로그램을 이용하였으며 입력된 Chemical structure로 Triple 값인 Cas No., Synonyms, Symptom, SMILES, InChl, Formula를 사용 하였다. 또한 작업자의 증상을 안내하는 방법은 AI 스피커를 활용한 방식이 가능하며 지식베이스 구축 결과 암모니아(CAS No: 7664-41-7)를 기준으로 39개의 증상이 WISER 프로그램과 동일함을 확인 하였다. 이를 통해 화학물질 추정 시스템의 증상 추출 과정에 지식베이스 구축이 가능하였다.

스키마에 의한 현대주택의 전통성 표현에 관한 연구 (A Study on the Expression of Traditionality in the Contemporary House base on Schema)

  • 이완건;정례화
    • 한국실내디자인학회논문집
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    • 제15권5호
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    • pp.60-67
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    • 2006
  • An architecture is a result from representation of design knowledge by architect's creative thinking, and operated only in his internal organization system. Design knowledge based upon the experience that they have achieved in the past as well as the informations they have accumulated over the time. In this point of view, the Schema that formed by problems settlement and process repetitions for the best conclusion, not only play an important part in the designer's thinking system about a specific problem but also appeared by distinctive features. This research looks to achieve a new design method by finding out how architects express traditionality in the contemporary house through schema. This research analyze contemporary house built in seoul of 1990's. The result are as followings. First, Schema is a 'frame' that already exist in the architect's thinking, will make a good guide about express the traditionality. Second, We found out several distinctive characters in the form and the space. The form is divided in five types. It is an condensed form of roof image, the metamorphosis of form grammar, the change of part details, the representation of design principle and the directly expression. Lastly, In the space, it is the borrow of the connection method of inside and external space, the three parts composition of the space, the adaptation of 'Madang' and the Independent composition of the space due to 'Chae'

건축설계의 협동작업을 지원하는 지능형 CAD 엔진의 개발 (A Development of an Intelligent CAD Engine to Support Architectural Design Collaboration)

  • 최진원
    • 한국CDE학회논문집
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    • 제2권1호
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    • pp.53-59
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    • 1997
  • Current CAD systems used in the AEC community have some critical problems. One of them is that they hardly support design collaboration. Thus designers and engineers are hard to transfer design knowledge from one discipline to another. What we need is a common building database which creates and manages building plans/models and relevant design knowledge consistently and effectively. This paper presents a powerful CAD editor, called UNIFORM, which is being developed. Currently UNIFORM includes three main modules: a plan generator, a 3-D model generator, and component databases. A plan generator, called UNIFORM PLANNER, creates a plan which contains semantically-rich information of building. Each component in the plan can be presented in various ways and connected to component databases that contain knowledge of building components such as windows, doors, walls, etc. Based on the plan UNIFORM MODELER, another module of the program, generates a three dimensional building model which could be a multiple-story building. One of the main ideas behind the system is that it generates and maintains a common building form that can be easily delivered to other members of the project team. Thus it is expected to increase system integration, team interactions, and productivity.

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Beyond robust design: an example of synergy between statistics and advanced engineering design

  • Barone, Stefano;Erto, Pasquale;Lanzotti, Antonio
    • International Journal of Quality Innovation
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    • 제3권2호
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    • pp.13-28
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    • 2002
  • Higher efficiency and effectiveness of Research & Development phases can be attained using advanced statistical methodologies. In this work statistical methodologies are combined with a deterministic approach to engineering design. In order to show the potentiality of such integration, a simple but effective example is presented. It concerns the problem of optimising the performances of a paper helicopter. The design of this simple device is not new in quality engineering literature and has been mainly used for educational purposes. Taking full advantage of fundamental engineering knowledge, an aerodynamic model is originally formulated in order to describe the flight of the helicopter. Screening experiments were necessary to get first estimates of model parameters. Subsequently, deterministic evaluations based on this model were necessary to set up further experimental phases needed to search (or a better design. Thanks to this integration of statistical and deterministic phases, a significant performance improvement is obtained. Moreover, the engineering knowledge かms out to be developed since an explanation of the “why” of better performances, although approximate, is achieved. The final design solution is robust in a broader sense, being both validated by experimental evidence and closely examined by engineering knowledge.