• 제목/요약/키워드: Knowledge-based Design System

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퍼지셋을 이용한 퍼어싱 및 굽힘공정을 갖는 전기제품의 공정순서 결정기법 개발 (Development of a Process Sequence Determination Technique by Fuzzy Set Theory for Electric Product with Piercing and Bending Operations)

  • 김재훈;김철
    • 한국정밀공학회지
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    • 제22권9호
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    • pp.137-146
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    • 2005
  • This paper describes a research work to develop a computer-aided design for the product made by progressive working of bending and piercing. An approach to the system for progressive working is based on the knowledge-based rules. Knowledge for the system is formulated from plasticity theories, experimental results and the empirical knowledge of field experts. The system has been written in AutoLISP on the AutoCAD with a personal computer and is composed of three main modules, which are input and shape treatment, flat pattern layout, strip layout modules. The system is designed by considering several factors, such as piercing and bending sequences by fuzzy set theory, complexities of blank geometry, punch profiles, and the availability of a press equipment. Strip layout drawing generated in the strip layout module is presented in 3-D graphic forms, including piercing and bending sequences with punch profiles divided into for external area. Results obtained using the modules enable the manufacturer for progressive working of electric products to be more efficient in this field.

Fuzzy set 이론을 이용한 프로그레시브 가공의 공정설계에 관한 연구 (A Study for Process Planning of Progressive Working by the using of Fuzzy Set Theory)

  • 김영민;김재훈;김철;최재찬
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2001년도 춘계학술대회 논문집
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    • pp.735-739
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    • 2001
  • This paper describes a research work of developing computer-aided design of a product with bending and piercing for progressive working. An approach to the system for progressive working os based on the knowledge-based rules. Knowledge for the system is formulated from plasticity theorise, experimental results and the empirical knowledge of field experts. the system has been written in AutoLISP on the AutoCAD with a personal computer and is composed of three main modules, which are input and shape treatment, flat pattern layout and strip layout modules. Strip layout of the system is designed by using fuzzy set theory. Process planning is determinated by fuzzy value according to several rules. Strip layout drawing generated in strip layout module is presented in 3-D graphic forms, including bending sequences and piercing processes with punch profiles divided into for external area. Results obtained using the modules enable the manufacturer for progressive working of electric products to be more efficient in this field.

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추상화계층에 기반한 작업영역분석의 모델링 개념 및 적용 원칙 (Work Domain Analysis Based on Abstraction Hierarchy: Modelling Concept and Principles for Its Application)

  • 함동한
    • 대한안전경영과학회지
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    • 제15권3호
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    • pp.133-141
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    • 2013
  • As a work analysis technique, Work Domain Analysis (WDA) aims to identify the design knowledge structure of a work domain that human operators interact with through human-system interfaces. Abstraction hierarchy (AH) is a multi-level, hierarchical knowledge representation framework for modeling the functional structure of any kinds of systems. Thus, WDA based on AH aims to identify the functional knowledge structure of a work domain. AH has been used in a range of work domains and problems to model their functional knowledge structure and has proven its generality and usefulness. However, many of researchers and system designers have reported that it is never easy to understand the concepts underlying AH and use it effectively for WDA. This would be because WDA is a form of work analysis that is different from other types of work analysis techniques such as task analysis and AH has several unique characteristics that are differentiated from other types of function analysis techniques used in systems engineering. With this issue in mind, this paper introduces the concepts of WDA based on AH and offers a comprehensive list of references. Next, this paper proposes a set of principles for effectively applying AH for work domain analysis, which are developed based on the author's experiences, consultation with experts, and literature reviews.

창조적 사고체계로서의 실내디자인 과정에 관한 연구 (A Study on the Interior Design Process as Creativite Thinking)

  • 이선민
    • 한국실내디자인학회논문집
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    • 제13호
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    • pp.60-71
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    • 1997
  • A study was performed for combination active process between the academical theory and practical design process based on creative thinking process in interior desigv. At first, it was investigated the concepts and characteristics of creativity combined with creativite process of thinking, and also scientific and art characteristics on interior design to be educated together with logical and esthetical concepts required for creative thinking process. In reference with above process, it was systematically established stepwise process of interior design with creative thinking system. As a resualt, creativity in interior design could develop a unique design process combined informations about knowledge and experiences with actual acquirements by individual's experiences. So interior design could be approachable and developed with open-mind and consistently scientific methodology. Also creativity power of interior design could be solved by strategic knowledge acquired by practical experiences and problem solving capability in special branches. Like this, all design activities, including interior design, would be accomplished theoretical background and actual design process under the concepts of practical intension and use. So it would be made creative products by means of detail adapation process based on the theoretical atmosphere, therefore it'll be strongly based on the hardnessing of theoretical value and power. Theory for design process referred to environmental concepts, so including interior design, would not be terminated as for theoretical concepts but be responsible for future of well-developed design by accomplishment of various design adaption method for practical purpose and objectives.

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극배치를 고려한 제분 Model Matching 제어계 설계 (Partial Model Matching Control System Design by Considering Pole-Placements)

  • 이수흠;김수중
    • 대한전기학회논문지
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    • 제35권10호
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    • pp.427-437
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    • 1986
  • Identification of the plants is not easy task especially in the fields of process control. From this point of view, Kitamori developed a method of control system design based on partial knowledge about controlled processes. However, it is difficult to control the oscillatory plant by kitamori's method. In this paper, we develope a method of partial model matching control system design, which have desirable pole-placements in order to improve the above defects. Design examples are given to illustrate the effectiveness of the method.

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지식확산에 의한 감염병 실험실의 자율적 생물안전관리 학습조직 설계 및 실행 (Design and Implementation of a Learning Organization for Autonomous Biosafety Management of Infectious Disease Laboratories by Knowledge Translation)

  • 신행섭;유민수
    • 한국환경보건학회지
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    • 제41권2호
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    • pp.102-115
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    • 2015
  • Objectives: A learning organization was designed and implemented on the basis of the selection criteria and essential elements of knowledge translation theory. Methods: The learning organization was designed on the basis of biosafety harmonization criteria and risk management strategy and was implemented as the learning organization for biosafety management by the National Institute of Health, Korea Centers for Disease Control & Prevention. The effect of knowledge translation in the research institutions by evidence-based policy was verified. Results: The result of applying the knowledge translation theory involving all stakeholders showed a positive reaction in establishing and implementing biosafety management strategy and embodied risk assessment criteria and evoked sympathy with the necessity of learning and using of expert knowledge about risk assessment and risk management. All stakeholders initiated voluntarily action toward new human-network construction and communication between similar organizations. The learning organization's capability expanded the base of knowledge translation. Conclusion: These results showed that a learning organization could enhance the autonomous safety management system by diffusion of knowledge translation.

축대칭 다단 냉간단조 금형설계에 관한 연구 (A Study on the Computer aided Design of Multi-Stage Cold Forging Die for Rotationally Symmetric Parts.)

  • 최재찬;김성원;조해용;김형섭
    • 한국정밀공학회지
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    • 제7권2호
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    • pp.95-104
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    • 1990
  • This paper descirbes some research of Computer-aided Design of multi-stage cold forging die of rotationally symmetric parts produced by the press or former. An approach to the system is based on knowledge based system. Knowledges for tool design are extracted from the plasticity theory, handbooks, relevent references and empirical know-how of experts in cold forging companies. The deveoped system is composed of three main modules such as die design module, punch design module, tool elements design module which are sued independently or in all. Using this system, design parameters (types of dies, geometric shapes and dimensions of dies, types of punches, geometric shapes and dimensions of punches, geometric shapes and dimensions of tool elements) in each operation are determined and the output is generated in graphic form. The develpoed system, aids designer, provides powerful capability for designing dies, punches and tool elements.

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모델기반 시스템엔지니어링 접근을 통한 고속철도 성능시험 및 안전기준 요구사항 관리체계 구축에 관한 연구 (A Study on Constructing the Requirement Management System of the Performance Tests and Safety Standards of the High Speed Railway using Model-Based Systems Engineering Approach)

  • 최요철;박영원;왕종배
    • 한국철도학회논문집
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    • 제9권3호
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    • pp.330-334
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    • 2006
  • To maintain design-knowledge database and manage configuration for requirement of performance tests and safety standards of High Speed Railway(HSR), It is established that management system of performance tests and safety standards and then constructed that design-knowledge database and documented a performance test and safety specifications for supporting performance test and safety system using Model-Based Systems Engineering(MBSE) tool.

Design of Object-based Information System Prototype

  • Yoo, Suhyeon;Shin, Sumi;Kim, Hyesun
    • International Journal of Knowledge Content Development & Technology
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    • 제4권1호
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    • pp.79-91
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    • 2014
  • Researchers who use science and technology information were found to ask an information service in which they can excerpt the contents they needed, rather than using the information at article level. In this study, we micronized the contents of scholarly articles into text, image, and table and then constructed a micro-content DB to design a new information system prototype based on this micro-content. After designing the prototype, we performed usability test for this prototype so as to confirm the usefulness of the system prototype. We expect that the outcome of this study will fulfill the segmented and diversified information need of researchers.

대학의 인적ㆍ지적 자원의 효과적 활용을 위한 지식관리시스템의 구현 (Implementation of the Knowledge Management System to Effectively Utilize the Human and Intellectual Resources of Universities)

  • 최재원
    • 한국정보통신학회논문지
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    • 제8권6호
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    • pp.1273-1283
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    • 2004
  • 오늘날의 정보이용자는 단순 정보 차원 이상의 구체적인 지식을 필요로 하고 있다. 본 논문에서는 지식정보의 메카인 대학의 인적ㆍ지적 자원의 효과적 활용과 원활한 지식의 공유 및 교류를 가능하게 하는 지식관리시스템을 최소한의 비용으로 효과적으로 구축하기 위한 시스템의 구현방법에 대해 연구하고 이를 기초로 시스템을 구현하였다.