• Title/Summary/Keyword: Knowledge-based Design

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Development of an Automated Progressive Design System for Manufacturing Product with Multi Processes, Piercing, Bending, and Deep Drawing (복합공정(피어싱, 벤딩, 디프드로잉)을 갖는 제품 제조를 위한 프로그레시브 설계 자동화 시스템 개발)

  • Hwang, Beom-Cheol;Kim, Chul;Bae, Won-Byong
    • Journal of the Korean Society for Precision Engineering
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    • v.25 no.12
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    • pp.55-64
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    • 2008
  • This paper describes a research work of developing an automated progressive design system for manufacturing the product with multi processes such as piercing, bending, and deep drawing. 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 consists of three main modules, which are shape treatment, strip layout, and die layout modules. Based on knowledge-based rules, the system is designed considering several factors, such as material and thickness of a product, piercing, bending and deep drawing sequence, and the complexities of the blank geometry and punch profiles. It generates the strip layout drawing for an automobile product. Die design for each process is carried out through the die layout module from the results of the strip layout module. Results obtained using the modules enable the designers for manufacturing products with multi processes to be more efficient in this field.

The Characteristics of Evidence in Evidence-based Design Research and Their Implications to the Evidence-based Practice of Healthcare Architecture - Focused on Health Environments Research & Design Journal (근거기반설계 연구의 근거 특성과 의료건축의 근거기반실무를 위한 시사점 - HERD의 연구경향 분석을 중심으로)

  • Kim, Duksu
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.28 no.4
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    • pp.21-30
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    • 2022
  • Purpose: To prove the credibility of EBD, it is necessary to define concepts regarding the nature of credible knowledge and the hierarchy of evidence. In addition, the relationship between EBD and EBP needs to be addressed through a practical viewpoint. Methods: The systematic review is applied to define the nature of knowledge and the characteristics of research papers in architectural EBD while analyzing the field of study, knowledge focus and types of keywords of the first author. Results: As a whole, the types of research focus evaluated using the most frequent keywords include function(40.86%), specialized knowledge(30.52%), professional practice(21.37%), and health(5.78%). Empirical research(83.72%) is more likely to be found than theoretical research(13.95%). The EBD research papers ranked as top-tier are only 7(2.03%) among a total of 344, while the research papers ranked in the third to fourth tiers are 276(80.23%). Implications: There is a deficiency of reliable 1-2 tier research papers. From a practical viewpoint, it would be realistic to recommend that healthcare architects appropriately evaluate the quality of EBD research and apply it in practice, rather than to conduct EBD research themselves. This systematic review illustrates the nature of EBD research.

Effects of a Case-Based Sepsis Education Program for General Ward Nurses on Knowledge, Accuracy of Sepsis Assessment, and Self-efficacy

  • Kim, Bohyun;Jeong, Younhee
    • Journal of Korean Biological Nursing Science
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    • v.22 no.4
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    • pp.260-270
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    • 2020
  • Purposes: Sepsis is a critical condition in which nurses should detect clinical manifestations and provide early intervention to prevent unwanted serious conditions in the patients. The initial occurrence and management of sepsis take place in general units, but there is a lack of knowledge in nurses. The purpose of this study was to examine the effects of a case-based sepsis education program and compare the case-based education program with and without smartphone applications. Methods: A quasi-experimental pre-test-post-test design with a control group was used. We provided a case-based education program with and without smartphone applications to the nurses and tested the effects of the program on knowledge, the accuracy of sepsis assessment, and self-efficacy as outcome variables. A total of 60 nurses in general units participated. To test differences in knowledge, the accuracy of sepsis assessment, and self-efficacy regarding sepsis between the groups over time, a mixed-design ANCOVA was used for parametric analysis, and generalized estimating equations (GEE) were used for nonparametric analysis. Results: There were significant differences in knowledge, the accuracy of sepsis assessment, and self-efficacy between the groups and within the groups over time. The intervention groups treated with the case-based education program showed improved outcome variables compared to the control group. There was no difference between case-based education with the smartphone application or without the application. Conclusions: The case-based education improved knowledge, the accuracy of sepsis assessment, and self-efficacy in the care of sepsis by nurses working in the general wards. The results suggest that the case-based education program for nurses was effective and eventually improved patient health outcomes.

Improving the Performance of Innovation in a Knowledge-based Design Service Industry Using DEA-Tier - Focused on the Architectural Design Offices - (DEA-Tier를 이용한 국내 지식기반 건축서비스업의 혁신 성과 개선에 관한 연구 - 건축설계사무소를 중심으로 -)

  • Kim, Ji-Sun;Lee, Hoon-Ku;Lee, Yoon-Sun;Kim, Jae-Jun
    • Korean Journal of Construction Engineering and Management
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    • v.14 no.2
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    • pp.160-170
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    • 2013
  • Knowledge-based Service Industry is an industry that creates added value through the production, processing, and use of knowledge. Comparing to other service industries, it is innovation-oriented business endeavors having the characteristics that exert the great influences on other fields. Meanwhile, however, research efforts thereof are yet insignificant. In this study, we analyzed the innovation performance of architectural design office which creates knowledge services, having raised the necessity of innovation of the design office. The innovation performance were classified according to the extent of efficiency of the architectural design office making use of DEA-Tier analysis, and, for those architectural design offices that showed significant differences in efficiency, we presented the case studies of the firms that were substantial benchmarking targets from short, medium, and long-term perspectives.

Design and Construction of a NLP Based Knowledge Extraction Methodology in the Medical Domain Applied to Clinical Information

  • Moreno, Denis Cedeno;Vargas-Lombardo, Miguel
    • Healthcare Informatics Research
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    • v.24 no.4
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    • pp.376-380
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    • 2018
  • Objectives: This research presents the design and development of a software architecture using natural language processing tools and the use of an ontology of knowledge as a knowledge base. Methods: The software extracts, manages and represents the knowledge of a text in natural language. A corpus of more than 200 medical domain documents from the general medicine and palliative care areas was validated, demonstrating relevant knowledge elements for physicians. Results: Indicators for precision, recall and F-measure were applied. An ontology was created called the knowledge elements of the medical domain to manipulate patient information, which can be read or accessed from any other software platform. Conclusions: The developed software architecture extracts the medical knowledge of the clinical histories of patients from two different corpora. The architecture was validated using the metrics of information extraction systems.

A Study on the Development of an Integrated Structural Design System for Buildings (건축구조설계 통합시스템의 개발에 관한 연구)

  • 김이두;최창근
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1992.04a
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    • pp.79-84
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    • 1992
  • An integrated design system has as its aim the incoporation of all the design processes, such as, planning, preliminary design, analysis, detailed design (mamber design), evaluation, and drafting into an unified software system. Successful implementation such a system could lead to major improvements in efficiency by eliminating duplication of data and efforts. reducing errors, saving design time, providing management support, and so on. This study presents a methodology for an computer-integrated design system for building structures, synthesizing algorithmic procedures and knowledge based expert systems on the network database. Network database, which was designed to store all information systematically during the design processes, provides centeral communication area between algorithms and expert systems. The conventional procedural codes automate the routine design phases such as structural analysis, whereas knowledge-based expert systems support designer's decisions at the creative design phases such as preliminary design etc. The user interface with interactive and batch modes controls the design phases and manages design information and activates the algorithms and the expert systems. The concept presented in this paper will contribute to the formulation of automated design systems for building structures.

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Design and Implementation of Case-Based Reasoning System for Knowledge Management : The Case Study of Plant Construction Division of 'H' Cooperation (지식경영을 위한 사례기반추론 시스템의 설계 및 구축 : 'H'기업의 플랜트 건설 프로젝트 적용사례)

  • Jang, Gil-San
    • The Journal of Information Systems
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    • v.18 no.3
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    • pp.231-249
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    • 2009
  • Recently, plant construction industries are enjoying a favorable business climate centering around developing countries and oil producing countries rich in oil money. This paper proposes a methodology of implementing case-based reasoning(CBR) system for managing knowledge like lessons learned and various documents accumulated in performing power plant construction projects which are receiving a lot of order from foreign countries such as the Middle East, etc. Our methodology is consisted of 10 steps : user requirement gathering, information modeling, case modeling, case base design, similarity function design, user interface design, case base building, CBR module development, user interface implementation, integration test. Also, to illustrate the effectiveness of proposed methodology, the real CBR system is implemented for the plant business division of 'H' company which has international competitiveness in the field of plant construction industry. At present, the implemented CBR system is successfully utilizing as storing, sharing, and reusing knowledge which is accumulated in performing power plant construction projects in the target enterprise.

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Designer-User Interaction without Actual Users: A Lesson from a Field Study

  • Jaehyun Park
    • Asia pacific journal of information systems
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    • v.28 no.3
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    • pp.220-239
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    • 2018
  • The purpose of the paper is empirically to explore 'design manner', focusing on the designer's knowledge boundary on the designer-user interactions in the design process. This study conducts a field study and observed designer's interactions with actual users in a leading user-centered design firm over three months. The observations revealed how designers bring ideas about users into design without physically interacting with users during the design process. Based on Bourdieu's theory of practice and the concept of boundary objects, this study introduces the concept of 'design manner', by which designers incorporate user's ideas into the design process without actual involvement of users in the process. This paper contributes to the body of knowledge by introducing the design manner in-between designer's and user's knowledge boundaries and argue bridge between theoretical and actual designer-user interactions in the IS design process.

Study of Object-Oriented Mechanical Design System (객체지향접근법을 이용한 기계 설계 시스템에 관한 연구)

  • 최경현;윤지섭;오승철
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1996.11a
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    • pp.769-773
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    • 1996
  • A design system for mechanical components is being developed using an Object-Oriented Programming language Smalltalk to allow mechanical designers to use the experience of expert designers. The system is organized in such a manner that the expert knowledge stored in it could be easily retrieved by the junior designer. The experience and the knowledge of the expert are placed in the databases. Multiple design models, in this system, can be processed simultaneously, because the expert knowledge is broken down into elements which can be used by different design models. In this way the system proves more flexible and extendable. In this paper, the philosophy of the system and the databases involved in the system will be addressed.

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