• Title/Summary/Keyword: drawing development

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Development of Drawbead Expert Models for Finite Element Analysis of Sheet Metal Forming Processes(Part 2:Modeling) (박판성형공정의 유한요소해석을 위한 드로우비드 전문모델 개발(2부: 모델링))

  • Keum, Yeong-Tak;Lee, Jae-U
    • Transactions of Materials Processing
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    • v.7 no.1
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    • pp.12-22
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    • 1998
  • An expert drawbead model is developed for the finite element analysis of stamping processes. The expert model calculates drawbead restraining forces and bead-exit thinnings with the forming condi-tions and drawbead size. The drawbead restraining forces and bead-exit thinnings of a circular draw-bead and stepped drawbead are computed by mathematical models and corrected by the multiple lin-ear regression method based on experimental measurements. The squared drawbead preventing the sheet from drawing-in inside die cavity is assumed to have a very huge drawbead restraining force and no pre-strain just after drawbead. The combined beads are considered as a combination of basic draw-beads such as circular a drawbead stepped drawbead and squared drawbead so that the drawbead restraining forces and bead-exit thinnigs are basically sum of those of basic drawbeads.

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Remote Diagnosis of Hypertension through HTML-based Backward Inference

  • Song, Yong-Uk;Chae, Young-Moon;Cho, Kyoung-Won;Ho, Seung-Hee
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2001.01a
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    • pp.496-507
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    • 2001
  • An expert system for the diagnosis and indication of hypertension is implemented through HTML-based backward inference. HTML-based backward inference is performed using the hypertext function of HTML, and many HTML files, which are hyperlinked to each other based on the backward rules, should be prepared beforehand. The development and maintenance of the HTML files are conducted automatically using the decision graph. Still, the drawing and input of the decision graph is a time consuming and tedious job if it is done manually. So, automatic generator of the decision graph for the diagnosis and indication of hypertension was implemented. The HTML-based backward inference ensures accessibility, multimedia facilities, fast response, stability, easiness, and platform independency of the expert system. So, this research reveals that HTML-based inference approach can be used for many Web-based intelligent site with fast and stable performance.

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Development of High Sensible Fabrics Using Worsted Yarn Drawing Technology (소모사 연신기술 이용 고감성 직물 개발)

  • 김승진;박경순;김진학;정기진;강지만;서옥교
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2003.05a
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    • pp.14-18
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    • 2003
  • 국내 소모방 업체는 원료를 외국에서 수입하고 있기 때문에 wool 원료를 이용한 고감성 고기능성 제품 개발이 요구되고 있다. 또한 기존 제품은 국제 가격 경쟁력을 상실한 상태이므로 물성개전과 기능성을 향상시킨 획기적인 소재 개발이 요구되고 있는 실정이다. 최근 호주의 CSIRO 연구소에서 개발된 $\ulcorner$Optim$\lrcorner$$^{(R)}$ 은 광택이 뛰어난 모섬유 소재로서 국내에서 수입되어 고감성 의류용 직물로서 상품화가 되고 있다. 그러나 원료가격이 고가인 관계로 원료수금이 원활치 못한 실적이다. 본 연구에서는 생산원가가 저렴하며 50%까지 연신함으로써 광택은 물론 물세탁이 가능한 기능성을 부여할 수 있는 방적 소모사 상태에서 연신하는 기술을 개발하기 위한 최적 공정 조건을 결정하기 위한 실험을 실시하였고 이들 소모사를 이용한 직물의 의류물성을 분석하여 소모사 상태에서 연신기술을 응용한 광택이 우수한 고감성 직물을 개발하기 위해 연구를 수행하였다.

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Development of Software for Electrostatic Precipitator Design (전기집진기 설계소프트웨어 개발)

  • 조현덕;박기서;양민양
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1994.04a
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    • pp.429-433
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    • 1994
  • Electrostatic precipitator is the equipment that separates dust particles from the gas in which they are susponded. Specially, in establishing industrial electrostatic precipitatior, corparations would send to a customer technical papers to accept an order. And, they design detail drawing after accept an order. Then, since the basic technical design of electrostatic precipitator is very complex, it takes long time. Thus, for competitiveness in these industries, the developement of software about technical design is important. In this study, the developed software is called 'KOCO', the simpler form for KOrea Cottrell Co. Ltd., deals with a basic technical design of industrial electrostatic precipitator. From using the software, design time was veryshort, design errors reduced largely, and the standardization of design could be carried out.

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A Study on the Development of a Web Based Knowledge-Based Diagnosis System through a Combination of SIS and MMIS (안전정보와 보전관리정보를 연계한 Web 기반 지식베이스 진단시스템 구현)

  • 박주식;이선태;박상민;남호기
    • Journal of the Korea Safety Management & Science
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    • v.2 no.4
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    • pp.59-70
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    • 2000
  • To keep enterprise's competitiveness on condition of the automatic manufacturing system such as FA, FMS and CIM, all the maintenance problems should be considered seriously in not only production and maintenance but also related industrial safety. As we analyze in the surveys for the maintenance management of domestic enterprises and the causes of Industrial accident, there will be necessity of drawing up countermeasures for prevention of industrial accidents and for ensuring expertise maintenance technologies. Based on these analyses, this study studied the safety information system, maintenance management information system, and the machinery condition diagnosis technique by using of the knowledge-based system under the internet environment. This web based knowledge-based diagnosis system can easily provide not only the knowledge of expert about deterioration phenomenon of industrial robot, but also the knowledge of relating safety and facility on everywhere, everytime. Therefore, when we use this system, it is expected to improve the efficiency of business processes in the production and safety.

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Design of 3D Ship Display System using Android (안드로이드를 이용한 3D 선박 디스플레이 시스템)

  • Oh, Yeon-Jae;Cho, Oh-Hoon;Kim, Eung-Kon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.7 no.5
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    • pp.1011-1016
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    • 2012
  • By the recent development of the mobile communication, the mobile devices like smart phones and tablet PCs, become extremely popular and the diverse augmented reality are embodied using them. In this paper, a 3D ship display system using mobile augmented reality was designed, and the drawing matching algorithm was embodied. And also, it is intended to provide the help to the active attraction of the shipbuilding orders.

A Comparative Study of Korean Oriental Medicine & Indian Traditional Medicine (한국한의학과 인도전통의학의 비교연구)

  • Kim Deog-Gon
    • The Journal of Korean Medicine
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    • v.26 no.2 s.62
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    • pp.201-216
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    • 2005
  • Objective: Ayurveda is a complementary and alternative medical (CAM) system that has been practiced primarily in the Indian sub·continent for 5,000 years. As need for CAM increases, interest in Ayurveda is drawing more attention in Western countries. But in Korea, understanding of Ayurveda is superficial due to a lack of information and research. In this article, we investigated not only the philosophical features of Indian Traditional Medicine, but its relationship with Korean Oriental Medicine. Methods: From April to August 2004, we sought mutual cooperation through observation at research institutes (Central Council for Research in Ayurveda and Siddha, National Institute of Ayurveda, Institute of Medical Science, Pharmacopoeial Laboratory for Indian Medicine) and performed on-the-spot surveys & discussions. Results & Conclusions: We conclude that the philosophies of Indian Traditional Medicine could extend those of Korean Oriental Medicine. Adopting some promising Indian Traditional Medicine techniques such as PanchaKarma and KsharaSutra treatments which have been shown to have efficacy and safety could contribute to the development of Korean Oriental Medicine's internal & external medical treatment. Further studies of Indian Traditional Medicine are needed.

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A Study on the Architectural Planning of the Hospice Ward in a General Hospital - focused on spatial composition of the hospice ward - (종합병원 병동형 호스피스에 관한 건축계획적 연구 - 병동형 호스피스의 공간구성 계획을 중심으로 -)

  • Kang, Sung-Chang;Park, Jae-Seung
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.9 no.2
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    • pp.7-16
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    • 2003
  • Terminal cancer patients in Korea have increased due to the development of medical technology and the structural change of diseases resulted from life quality improvement. Following this trend, many hospitals are making efforts, such as renovating hospice wards, but architectural criteria are not sufficiently suggested for specialized hospice wards. The purpose of this study is to present the research data to improve the quality of hospice ward in general hospital. Data collecting skills such as drawing documents analysis, interviews, observation were used to examine the condition of hospice ward. And, case study method was used to generate the design data which can be used for the appropriate spatial composition and the area calculation.

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A Study on planning of storage area considering residents' needs (거주자 요구를 고려한 수납면적에 관한 연구)

  • Lee, Se-Na;Lee, Hyun-Soo
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2006.05a
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    • pp.193-196
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    • 2006
  • The storage style has changed because of diversity of family types, improvement of cost of living, and increase of leisure time. In spite of this change, storage space has still caused discomfort since it did not consider residents' convenience. Therefore, in this study, Brand Apartments were selected, furniture detail drawing was analyzed by plan of housing size and zone to calculate storage area and capacity, and finally needs of storage space were analyzed using survey. Satisfaction of storage space was generally low and $20{\sim}30%$ increase of storage space was demanded. The reasons why the storage space was not satisfied are followed. First, storage space was insufficient. Second, the inner structure of storage space was unified. According to change of life style, needs have changed. To satisfy these needs, the inner division of storage space is planned with considering various items. In addition, development of hardware, flexible division, and priority of storage space with considering user's convenience are needed.

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Development of the DNC System for SFC/POP (SFC/POP 연계형 DNC 시스템 구현)

  • Choi, Jung-Hee;Kim, Jae-Gyun;Lee, Dong-Hyun;Choi, In-Jib
    • IE interfaces
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    • v.12 no.3
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    • pp.374-381
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    • 1999
  • In this paper, we propose an architecture of the DNC system for Shop Floor Control/Point of Production(SFC/POP). The DNC system to be presented this paper retrieves line-up sheets which include the drawing information, making a index database for line-up sheets, NC programs and tool adjustment data. And it is interface with a raw material, jig and tool information. Also, the DNC system transmits operation information to real workers rapidly, and supports realtime monitoring by collecting the state information of machines directly. In the analysis and design phases, this paper models realtime events using the state transition diagrams. In the implementation phase, we use the ORACLE DBMS(Database Management System) as the DBMS and Developer 2000 and Microsoft Visual C++ 5.0 as the programming tools.

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