• Title/Summary/Keyword: Knowledge-based design

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Web-based Knowledge Management Model for Mid-Term and Long- Term Nuclear R&D Using Web Knowledge DataBase (웹 지식 데이터베이스를 활용한 원자력 중장기 연구개발 웹 기반 지식관리 모델)

  • 정관성;한도희
    • The Journal of Society for e-Business Studies
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    • v.5 no.2
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    • pp.143-150
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    • 2000
  • This paper presents a methodology how to utilize management of research scheduling plan, processing, and results using Web Knowledge Database System, which integrates research knowledge management model under the Research & Development Environment. The content of this paper consists of description on utilization of the Web Knowledge Database System, sharing of the Research Knowledge through design data review, communications, and management of research knowledge flow during the Research & Development Period.

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A Study of Automated Process Planning and Die Design for Multi Former-Bolt Products (다단포머-볼트류 공정 및 금형설계 자동화 시스템 개발)

  • Park, Chul-Woo;Kang, Jung-Hoon;Lee, Jun-Ho;Kim, Chul;Kim, Moon-Saeng;Choi, Jae-Chan
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.4
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    • pp.29-38
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    • 2003
  • This paper deals with an automated computer-aided process planning and die design system with which designer can determine operation sequences even after only a little experience in process planning and die design of multi former-bolt products by multi-stage former working. The approach is based on knowledge-based rules, and a process knowledge base consisting of design rules is built. Knowledge fur the system is formulated from plasticity theories, empirical results and the empirical knowledge of field experts. Programs for the system have been written in AutoLISP for AutoCAD with a personal computer. An attempt is made to link programs incorporating a number of expert design rules with the process variables obtained by commercial FEM softwares, DEFORM and ANSYS, to form a useful package. The system is composed of four main modules. The process planning and die design module considers several factors, such as the complexities of preform geometry, punch and die profiles, specifications of available multi former, and the availability of standard parts. It can provide a flexible process based on either the reduction in the number of forming sequences by combining the possible two processes in sequence, or the reduction of deviation of the distribution and the level of the required forming loads by controlling the forming ratios. The system uses 2D geometry recognition and is integrated with the technology of process planning, die design, and CAE analysis. The standardization of die parts for multi former-bolt products requiring a cold forging process is described. The system developed makes it possible to design and manufacture multi former-bolt products more efficiently.

A Research on the Development of the 3-dimensional Design Automation System for Progressive Die (Progressive 금형의 3차원 설계 자동화시스템의 개발에 관한 연구)

  • 김대영;성창영;이재원
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.11a
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    • pp.303-306
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    • 2000
  • This paper describes a research on the development of the 3D design automation system for progressive die. Based on knowledge base of expert, this system can carry out design tasks, such as feature recognition of product data, layout design, dre set component design. Easy system user mterface and 3-dlmensional solid modeling could result in time and cost saving.

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An Intelligent Cavity Layout Design System for Injection Moulds

  • Hu, Weigang;Masood, Syed
    • International Journal of CAD/CAM
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    • v.2 no.1
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    • pp.69-75
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    • 2002
  • This paper presents the development of an Intelligent Cavity Layout Design System (ICLDS) for multiple cavity injection moulds. The system is intended to assist mould designers in cavity layout design at concept design stage. The complexities and principles of cavity layout design as well as various dependencies in injection mould design are introduced. The knowledge in cavity layout design is summarized and classified. The functionality, the overall structure and general process of ICLDS are explained. The paper also discusses such issues as knowledge representation and case-based reasoning used in the development of the system. The functionality of the system is illustrated with an example of cavity layout design problem.

PRELIMINARY STUDY REGARDING A DB CONSTRUCTION PLAN TO SUPPORT PERFORMANCE TECHNICAL A REMODELING ELEMENT TO BIM

  • Yong-Hyun Lee;Jong-soon Park;Jong-Sik Lee;Jae-Sauk Lee;Jae-Youl Chun
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.1300-1306
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    • 2009
  • If a brief direction and plan for a remodeling project are decided, it may moves to a concrete design step of which to select the most suitable alternative out of applicable compounding devices to reveal dynamic drifting performance. However, the volume of knowledge baseed utility which can refer to systematic evaluation regarding remodeling element technology and the accumulation of realistic cases are not only sufficient, but also short including its system for expression and consistency. Therefore, it may necessary to deliver the main frame which make enables the Owner, designer and builder to get performance technology for applying advanced remodeling element and knowledge based utility. There is a necessity to provide an information with latest made by virtue of modeling in the 3D/4D based on construction-based knowledge etc. which we can use for life cycle of a project, as a prominent way of knowledge based utility. Then, it is sure that remodeling can become more activative by sharing of knowledge based utility formed in electronic 3D/4D which is a systematic and expressed consistently to a performance and applicability in preservation of savings. It is expected for modeling of the 3D/4D in knowledge based utility enables to verify the practicability of each technology on effective application, and the use of technology might be spread widely due its obvious and oriented expressions. Further, this knowledge based utility formed in electronic 3D/4D may applicable for VE process in addition to remodeling design fields.

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Effects of Web-based Multimedia Contents for Mechanical Ventilator Practice on Knowledge and Clinical Competence of Nursing Students (웹기반 인공호흡기 실무 멀티미디어 컨텐츠 학습이 간호학생의 지식과 임상수행능력에 미치는 효과)

  • Yang, Jin Ju
    • Korean Journal of Adult Nursing
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    • v.18 no.2
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    • pp.231-239
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    • 2006
  • Purpose: The purpose of this study was to identify the effect of web-based learning for ventilator practice on the knowledge and clinical competence of nursing students. Method: The research design was a non-equivalent control group pre-post non-synchronized design. Twenty five nursing students were collected for the experimental group from August 23 to November 26, 2004 and nineteen nursing students for the control group from August 22 to November 25, 2005. All subjects experienced clinical practices in an intensive care unit of a hospital in G city for 2 weeks. The web-based learning for ventilator practice was conducted in the experimental group only. The data were analyzed with t-test and ANCOVA using SPSS 10.1 program. Result: The 2 week web-based clinical practice learning significantly improved the knowledge scores for the experimental group, however, there was no significant differences in the score for the clinical competence between experimental and control group. Conclusion: These findings suggest that a self-directed web-based learning for ventilator practice of nursing students can facilitate the knowledge of care for a ventilated patient. Therefore, faculties should develop a variety of web-based multimedia content programs for clinical instruction based on clinical situation.

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A Study of the Design of Ontology-based Prescription Knowledge Management System of Oriental Medicine (온톨로지 기반 한의학 처방 지식관리시스템 설계에 관한 연구)

  • 이현실;이두영
    • Journal of the Korean Society for information Management
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    • v.20 no.1
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    • pp.341-371
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    • 2003
  • The purpose of the study is to design the ontology-based Prescription Knowledge Management System of Oriental Medicine. The study was done with the premise that the effectiveness of the system can be improved by using ontological abstractional structure based on definition of concept, attribution and relations of words related to the specific area. The system is developed with Protege-2000 by using newly developed KPML(Korean Medicine Prescription Markup Language). The results of the study provide the model of Prescription Knowledge Management System and the possibility of implementing XML-based ontology system to the semantic web environment.

An Automated Process Planning System of Lead Frame for Progressive Working (반도체 리드프레임의 프로그레시브 가공을 위한 공정설계 자동화 시스템)

  • Kim, Jae-Hun;Yun, Ji-Hun;Kim, Cheol;Kim, Byeong-Min;Choe, Jae-Chan
    • Transactions of Materials Processing
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    • v.7 no.6
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    • pp.554-561
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    • 1998
  • This paper describes a research work of developing a computer-aided design of lead frame semicon-ductor with piercing operation which is very precise for progressive working. An approach to the sys-tem is based on to knowledge-based rules. Knowledge for the system is formulated from plasticity theories experimental results and the empirical knowledge of field experts. This system has been writ-ten using AutoLISP to AutoCAD on a personal computer and is composed of three main modules which are input and shape treatment production feasibility check and strip-layout module. Based on the knowledge-based rules the system is designed by considering several factors such as material and thickness of product complexities of blank geometry and punch profile, and availability of press. Also strip-layout drawing generated by piercing operation according to punch profiles considered V-notch dimple. pad chamfer spank cavity punch camber and cross bow of lead frame is displayed in graphic forms. This system can be used by a novice who may not have any knowledge of tool design and will invrease efficiencies to the designer in this field.

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PDM Based Design Knowledge Management System (PDM기반의 설계지식 관리 시스템)

  • 박성범;박홍석;여승훈;이규봉
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.10a
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    • pp.1394-1397
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    • 2004
  • Company perform a lot process to produce products. If company try to satisfy for customer and improve technological competition, they must be changed to new system. As a result, we developed knowledge based smart search system and customized it to PDM system on commercial use. In this smart search system, wherever process designer can seek to result quickly. This will be upgraded for be applied to some company.

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The Effect of Knowledge Sharing Activity on Computational Thinking through Design Thinking Project and Team Activity Satisfaction (디자인씽킹 프로젝트와 팀활동만족도를 매개로 한 지식공유활동이 컴퓨팅사고력에 미치는 영향)

  • Park, Jeongseon;Park, Sanghyeok
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.13 no.4
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    • pp.1-11
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    • 2017
  • Our society has changed from an industrial society to a knowledge - based society, and the need for new knowledge creation activities through the convergence of various knowledge is emphasized. In accordance with these changes, universities aiming at nurturing human resources for society have sought new approaches and changes. The discussion of various curriculum for the future talent training in the university is aimed at the goal of developing problem solving ability irrespective of the subject of education or major. In this study, we tried to show that computational thinking ability can be improved by strengthening creative team activities by combining design thinking method in computer curriculum of general education course of university. To do this, we conducted a design thinking team project for students of computer general education course at G university in Gyeongnam province and conducted a survey. The results of the questionnaire were verified by statistical methods. The variables of this study satisfied both the validity and the reliability. Multiple regression analysis showed that knowledge sharing, team activity satisfaction, and design thinking project satisfaction factors all affect computing thinking ability.