• Title/Summary/Keyword: Cad1-3

Search Result 869, Processing Time 0.029 seconds

A study on process of drafting bodice sloper by CAD system (CAD 시스템을 이용한 원형설계과정 연구)

  • 조영아
    • Journal of the Korean Home Economics Association
    • /
    • v.34 no.2
    • /
    • pp.367-378
    • /
    • 1996
  • The purpose of this study was to utilize of the CAD system in pattern making process for women's bodice sloper, especially in education of the drafting. Accumark 540 System was used for this study. The drafting program was developed by the use of macro program in CAD system. The results from this study : 1. The Lim Won Ja's system of bodice sloper was selected in this study. The hand drafting of the system was arranged developing the macro program of bodice sloper. 2. The program consists of eight subprograms I sequence of the drafting order. In running this developed program, proper figure is drafted by inputing data. And the drafting process is automatically presented in interactive mode. 3. It has been developed to input the function of French Curve Ruler to increase the effectiveness of curved line treatment. The program can also be used in the curve part to present the manualy sensible function. 4. In case of education of drafting bodice sloper, the program provides the high accuracy, efficiency and a strong interest nterest in pattern making process by utilizing CAD system.

  • PDF

CAD/CAM System Development for Automatic Creation and Manufacturing of Three Dimension Objects (입체 형상의 자동생성 및 가공을 위한 CAD/CAM 시스템 개발)

  • 조성철
    • Journal of the Korean Society of Safety
    • /
    • v.8 no.4
    • /
    • pp.54-60
    • /
    • 1993
  • The purpose of this study is to develop a CAD/CAM system for automatic creation and manufacturing of three dimension objects. The computer system used in this study made RAM 2M, CPU 80386, VGA graphic card. The results in this paper are as follows ; 1. By interconnect PC(personal computer) and NC(numerical control) milling machine with RS232C connector, we was constructed with CAD/CAM system. 2. The developed algorithm in this study is able to be design of three dimension object on the computer CRT and manufacturing of NC milling machine. 3. Because of design and modifying on the PC of objects, we can be saving time, cost and improvable precision of objects. 4. Essentially, we expect industrial accident to reduse according as we takes advantage of CAD/CAM system.

  • PDF

Comparable Electron Capture Efficiencies for Various Protonated Sites on the 3rd Generation Poly(Propylene Imine) Dendrimer Ions: Applications by SORI-CAD and Electron Capture Dissociation Mass Spectrometry (ECD MS)

  • Han, Sang-Yun;Lee, Sun-Young;Oh, Han-Bin
    • Bulletin of the Korean Chemical Society
    • /
    • v.26 no.5
    • /
    • pp.740-746
    • /
    • 2005
  • In this article, we report the tandem mass spectrometry investigations for the electron capture efficiencies of the protons belonging to the different locations (generations) in a poly(propylene imine) dendrimer with three layers of a repeat unit (named as the third generation dendrimer). The employed tandem mass spectrometry methods include SORI-CAD (sustained off-resonance irradiation collisional activation dissociation) and ECD(electron capture dissociation) mass spectrometry. We obtained SORI-CAD spectra for the dendrimer ions in the different charge states, ranging from 2+ to 4+. The analysis of fragmentation sites provides the information as to where the protons are distributed among various generations of the dendrimer. Based upon this, a new strategy to study the electron capture efficiencies of the protons is utilized to examine a new type of triplycharged ions by SORI-CAD, i.e., the 3+ ions generated from the charge reduction of the native 4+ ions by ECD: (M+4H)$^{4+}\;+\;e^-\;{\rightarrow}$ (M+4H)$^{3+\bullet}$ ${\rightarrow}\;({H^{\bullet}}_{ejected}$) + (M+3H)$^{3+}\;\rightarrow$ CAD. Interestingly, comparison of these four SORICAD spectra indicates that the proton distribution in the charge-reduced 3+ ions is very close to that in the native 4+ ions. It further suggests that in this synthetic polymer ($\sim$1.7 kDa) with an artificial architecture, the electron capture efficiencies of the protons are actually insensitive to where they are located in the molecule. This is somewhat contradictory to common expectations that the protons in the inner generations may not be well exposed to the incoming electron irradiation as much as the outer ones are, thus may be less efficient for electron capture. This finding may carry some implications for the case of medium sized peptide ions with similar masses, which are known to show no obvious site-specific fragmentations in ECD MS.

삼차원 측정기의 CAD/CAM 응용

  • 이춘식;김선호
    • Journal of the KSME
    • /
    • v.32 no.5
    • /
    • pp.456-464
    • /
    • 1992
  • CMM과 CAD/CAM접속(interface)은 1)CMM의 가동률 향상과 자동측정 프로그램 작성의 효율화, 2) 피축정물 측정 기준값의 효율적 작성, 3) CMM의 측정결과의 피드 백에 의한 데이터 해석과 설계시방, 도면의 수정, 4) 설계되지 않은 미지형상의 피측정물을 측정해 CAD/CAM시스템에 의한 모델링과 NC 가공 프로그램의 작성을 주목적으로하여 진행되고 있다. 향후 생산라인 내의 검사 스테이션으로 사용될 수 있도록 CMM 자체의 제약 극복과, 공장자동화를 위한 요소 기술, 기계와의 접속 (interface) 기술개발에 의해 설계, 가공공정에 비해 상대적으로 낙후되어 있는 검사공정의 자동화와 타부문과의 통합화가 촉진될 것으로 전망된다.

  • PDF

A Study on Improvement of Nuclear Power Plant Construction System According to Data-centric Design Technique Introduction in Korea (데이터 기반 설계기법 도입에 따른 원전 건설관리체계 개선방향 고찰)

  • Lim, ByungKi;Byon, Sujin
    • Journal of Energy Engineering
    • /
    • v.25 no.1
    • /
    • pp.108-112
    • /
    • 2016
  • This study is established the data-centric design concept, which is the latest design technique, by analyzing existing study literature for its application on the nuclear power plant industry in Korea. This study investigated the data-centric design cases in the advanced companies and suggests a data-centric design integrated system framework by analyzing the major functions of the commercial 3D CAD system, which is globally used in the plant architect engineering. In order to apply the data-centric design integrated system framework to the nuclear power plant industry in Korea, the main functions of a nuclear power plant design information integrated system framework, which can manage the design products of each EPC step and the related information in integrated way, is suggested by analyzing the supplier design, field design process and field design drawings, which have close relation with the plant Architect Engineering (A/E). It is expected that the result of this study would contribute in the dramatic enhancement in the job efficiency of nuclear power plant design process in Korea.

Documentation of the History of Ok-Cheon Catholic Church by standardized 2D CAD and 3D Digital Modeling (표준화된 2D CAD와 3D Digital Modeling을 이용한 옥천천주교회의 연혁 기록)

  • Kim, Myung-Sun;Choi, Soon-Yong
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.12 no.1
    • /
    • pp.523-528
    • /
    • 2011
  • Ok-Cheon catholic church has been changed 4 times since it's first construction in 1955. Prior three changes were small ones of windows, doors, roof finish etc. but the last alteration was the extension of it's plan from 一 shape to long cross shape and along with it the size, structure and form of it changed. This history of the church has not been recorded in drawing but only in text with indistinct features not documented. This study makes a new 2D CAD files using layers matched the changes and 3D digital models, these have not only present information but also change informations of the church. They are useful data for effective management, conservation restoration or possible reuse of it.

Implant fixed prosthetic treatment using CAD/CAM system in a patient with severe alveolar resorption (임상가를 위한 특집 3 - 심하게 흡수된 치조제를 가진 환자에서 CAD/CAM을 이용한 임플란트 고정성 보철치료)

  • Choi, Yu-Sung
    • The Journal of the Korean dental association
    • /
    • v.50 no.3
    • /
    • pp.126-139
    • /
    • 2012
  • Loss of dentition can lead to not only compromised esthetics and functions of the patient, but also alveolar bone resorption. Bone grafting with prosthetic reconstruction of the gingiva can be selected for the treatment, and it provides many benefits as prosthetic gingival reconstruction does not require a complicated surgical process and is available within a short period of time, with stable clinical results. However, conventional porcelain fused to metal prosthesis has certain limits due to its size, and deformation after several firing procedures. In this clinical report, the author would like to introduce a patient with severe alveolar resorption who was treated with gingiva-shaped zirconia/titanium CAD/CAM implant fixed prosthesis for esthetic and functional rehabilitation. Clinical reports Clinical report 1, 2 : A case of loss of anterior dentition with atrophied alveolar bone. Implant retained zirconia bridge applied with Procera implant bridge system to simulate the gingiva. Upper structure was fabricated with zirconia all ceramic crown. Clinical report 3, 4 : A case of atrophied maxillary alveolus was reconstructed with fixed implant prosthesis, a CAD/CAM designed titanium structure covered wi th resin on its surface. Anterior dentition was reconstructed with zirconia crown. Conclusion and clinical uses. All patients were satisfied with the outcome, and maintained good oral hygiene. Zirconia/titanium implant fixed prosthesis fabricated by CAD/CAM system was highly accurate and showed adequate histological response. No critical failure was seen on the implant fixture and abutment overall. Sites of severe alveolar bone loss can be rehabilitated by implant fixed prosthesis with CAD/CAM system. This type of prosthesis can offer artificial gingival structure and can give more satisfying esthetics and functions, and as a result the patients were able to accept the outcome more fondly, which makes us less than hard to think that it can be a more convenient treatment for the practitioners.

A Study on the Development of Program and Using CAD for Flower, Leaf and Fruit Characteristics of Deciduous Woody Landscape Plants in Korea (낙엽조경수목의 꽃,잎,열매,줄기 특성 정보체계 구축 및 CAD이용에 관한 연구)

  • 서병기;심경구;심재성;정해준
    • Asian Journal of Turfgrass Science
    • /
    • v.8 no.2
    • /
    • pp.65-85
    • /
    • 1994
  • This study was carried out to develope DBMS program and use CAD for flower, leaf and fruit characteristics of deciduous woody landscape plants in Suwon, Korea from January 1, 1992 to March 20,1993. The results were as follows : 1. The flower, leaf and fruit characteristics of 211 species which were anthesis, flowering period, flower color, leaf spreading, leaf color before fall leaf coloring, fall leaf color, fruiting, fruit period, fruit color and trunk color were investigated through field survey. 2. DBMS program for flower, leaf, fruit and trunk characteristics of deciduous woody landscape plants was developed with data through field survey. And the DBMS program might contribute to the decision of appropriate times for planting design for flowers, fall foliage color, fruit color and hark color. 3.During this procedure, CAD software was used to demonstrate the deblossom before leaf spreading and leaf spreading in flowering, fall foliage color, fruit color after leaf falling, and hark color for planting design as well as seasonal color change of deciduous woody landscape plants.

  • PDF

STEP 표준을 이용한 CAD 시스템간의 접속에 대한 조사연구

  • 한순홍;이성구
    • Bulletin of the Society of Naval Architects of Korea
    • /
    • v.32 no.1
    • /
    • pp.40-49
    • /
    • 1995
  • 1). 제품정보에 대한 표준이 왜 필요한가를 조사하고, 2) 국제표준으로 마무리 단계에 있는 STE P에 대한 기술현황들을 소개하였으며, 3) STEP표준을 이용한 상이 기종 CAD시스템간의 정보 호환을 위한 도구들을 검토하였고, 4) STEP을 이용한 시스템 통합에 대한 방안이 제시되었다. 1). 다양한 종류의 CAD시스템을 도입해서 사용하고 있는 국내의 기업 여건을 통해, 시스템간의 제품정보를 교환하기 위한 표준이 필요한 이유를 검토하였고 이를 위한 그간의 노력들을 소개 하였다. 2). 국제표준기구 (ISO)를 중심으로 선진 각국에서 활발하게 진행중인 STEP표준에 관련된 조직과 표준문서, 그리고 다루어 지고 있는 기술의 범위에 대하여, 그 현황이 조사되었다. 3). STEP표준을 이용하여 제품정보를 표현하고, 조작하며, 교환하는데 사용되는 소프트웨어 도구들의 기능들과, 현황을 조사하여 비교하였으며, 간단한 정보 변환을 위한 개발 내역을 소개 하였다. 4). 궁극적으로 컴퓨터 통합생산 체계를 구축하기 위하여, 제품정보의 공유를 위한 한가지 방안으로, STEP 데이터베이스를 이용하는 방안을 제안하고, 그 기술적인 내용을 설명하였다.

  • PDF