• Title/Summary/Keyword: Computer-aided

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Stabilization Splint Fabrication Using Computer-Aided Design/Computer-Aided Manufacturing and Three-Dimensional Printing

  • Sohn, Byung-Jin;Kim, Wook;Kim, Jea-Hong;Baik, Un-Bong
    • Journal of Oral Medicine and Pain
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    • v.44 no.2
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    • pp.74-76
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    • 2019
  • A conservative treatment approach to temporomandibular disorder (TMD) is recommended as the first line of management, usually with a stabilization splint. Recently, computer-aided design/computer-aided manufacturing and three-dimensional printer has been widely used in the dentistry since several years ago. The authors apply digital dentistry in oral medicine fields to make stabilization splint for TMD treatment.

Analysis of Fineblanking Forming using CAE (CAE를 이용한 파인블랭킹 성형 해석)

  • Lee, K.Y.;Nam, K.W.
    • Journal of Power System Engineering
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    • v.15 no.4
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    • pp.60-64
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    • 2011
  • Computer-aided engineering (CAE) is the broad usage of computer software to aid in engineering tasks. It includes computer-aided design (CAD), computer-aided analysis (CAA), computer-integrated manufacturing (CIM), computer-aided manufacturing (CAM), material requirements planning (MRP), and computer-aided planning (CAP). In this study, the stress of mold analyzed using CAE technique. Punch loads were same difference between 0.5 % and 1.0 % of clearance, but punch load was decreased according to increasing of clearance. Punch load of pre-piercing process worked a little smaller than piercing process. Therefore, the hole of fine blanking process is also more efficient to manufacture the true size after pre-piercing.

Fabricating a Ceramic-Pressed-to-Metal Restoration with Computer-Aided Design, Computer-Aided Manufacturing and Selective Laser Sintering: A Case Report

  • Lee, Ju-Hyoung;Kim, Hyung Gyun
    • Journal of Korean Dental Science
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    • v.8 no.1
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    • pp.41-47
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    • 2015
  • Even though a conventional metal ceramic restoration is widely in use, its laboratory procedure is still technique-sensitive, complex, and time-consuming. A ceramic-pressed-to-metal restoration (PTM) can be a reliable alternative. However, simplified laboratory procedure for a PTM is still necessary. The article is to propose a technique that reduces time and effort to fabricate a PTM with the aid of computer-aided design, computer-aided manufacturing and selective laser sintering technologies.

Computational Fluid Dynamic Analysis of New Model Hydraulic Valve Meter (신모델 밸브 수압측정기의 유동해석)

  • Lee, Jong-Sun;Kwon, Nu-Ri;So, Jae-Min;Kim, Min-Woo;Oh, Byeong-Ok;Noh, Gyu-Chang
    • Proceedings of the KAIS Fall Conference
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    • 2012.05b
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    • pp.769-771
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    • 2012
  • 기존의 수압측정기와 다르게 물을 좌 우로 보내고 밸브를 수평 수직으로 변환할 수 있으며 컨트롤러를 장착하여 압력을 조절할 수 있는 새로운 방식의 밸브 수압측정기를 개발하였다. 신모델 밸브 수압측정기는 CATIA를 활용하여 모델링하였다. 또한 신모델 밸브 수압측정기의 유동해석은 유한요소해석 코드인 ANSYS를 활용하여 물의 속도, 물의 흐름을 구하였다.

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Structural Analysis of New Model Hydraulic Valve Meter (신모델 밸브 수압측정기의 구조해석)

  • Lee, Jong-Sun;Kwon, Nu-Ri;So, Jae-Min;Kim, Min-Woo;Oh, Byeong-Ok;Noh, Gyu-Chang;Kim, Hyun-Jong
    • Proceedings of the KAIS Fall Conference
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    • 2012.05b
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    • pp.765-768
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    • 2012
  • 기존의 수압측정기와 다르게 물을 좌 우로 보내고 밸브를 수평 수직으로 변환할 수 있으며 컨트롤러를 장착하여 압력을 조절할 수 있는 신모델 밸브 수압측정기를 개발하였다. 신모델 밸브 수압측정기는 CATIA를 활용하여 모델링하였다. 또한 신모델 밸브 수압측정기의 구조해석은 유한요소해석 코드인 ANSYS를 활용하여 내부압력에 따른 누수, 응력, 변형률, 변형량을 구하였다.

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3D-QSAR of Non-peptidyl Caspase-3 Enzyme Inhibitors Using CoMFA and CoMSIA

  • Lee, Do-Young;Hyun, Kwan-Hoon;Park, Hyung-Yeon;Lee, Kyung- A.;Lee, Bon-Su;Kim, Chan-Kyung
    • Bulletin of the Korean Chemical Society
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    • v.27 no.2
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    • pp.273-276
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    • 2006
  • Three dimensional quantitative structure-activity relationship studies for a series of isatin derivatives as a nonpeptidyl caspase-3 enzyme inhibitor were investigated using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA). The first approach of non-peptidyl small molecules by 3D QSAR may be useful in guiding further development of potent caspase-3 inhibitors.

The State-of-the-art in Computer-Aided Design Modules for Machine Elements (기계요소의 CAD 소프트웨어 개발기법에 관한 연구)

  • Sin, Jung-Ho
    • 한국기계연구소 소보
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    • s.16
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    • pp.53-61
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    • 1986
  • This paper introduces the program to develop graphics-oriented, interactive, computer-aided design modules for machine elements which are developing in both of CAD/CAM Lab., Numerical Control Department of KIMM in Korea and Mechanical Engineering Department of the Ohio State University in U.S.A. The CAD modules are developed to be efficiently performed within the arena of minicomputer-and personal computer-based computer-aided design. In addition, this paper deals with the state-of-the-art in computer-aided design.

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A study on Dobby Weave Design using Computer-Aided Weaving System (CAW(Computer-Aided Weaving) 시스템을 이용한 도비 직조디자인 연구)

  • Song, Ha-Young
    • Fashion & Textile Research Journal
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    • v.12 no.3
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    • pp.272-278
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    • 2010
  • The purpose of this study was to research about Dobby weave design using Computer-Aided Weaving System. For performing this design study, first, it was researched the characteristics of the classified woven fabrics, weaving processing, structure of Dobby loom, and Computer-Aided Dobby Weaving system theoretically. To develop Dobby woven design, Patternland Weave Simulator(U.S.A) for computer weave system was used. Among the developed Dobby woven designs by computer weaving system, mainly three of them were selected and woven into Dobby loom. To see the visual image of the fabric end-use, some of the scanned Dobby fabrics were simulated to the three-dimensional virtual images by Alias CAD system. The result of this study can be summarized as follows. Before the step of weaving Dobby fabrics on the woven design works, Computer-Aided Weaving system can be done very easily to apply the design step of Dobby woven fabrics, specially in case of the complicated woven structure. Also the usage of the simulation CAD system in visual image of the final products, ultimately can be saved cost and developed the higher value-added goods in more response to consumer demands.

A Review of Computer Vision Methods for Purpose on Computer-Aided Diagnosis

  • Song, Hyewon;Nguyen, Anh-Duc;Gong, Myoungsik;Lee, Sanghoon
    • Journal of International Society for Simulation Surgery
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    • v.3 no.1
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    • pp.1-8
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    • 2016
  • In the field of Radiology, the Computer Aided Diagnosis is the technology which gives valuable information for surgical purpose. For its importance, several computer vison methods are processed to obtain useful information of images acquired from the imaging devices such as X-ray, Magnetic Resonance Imaging (MRI) and Computed Tomography (CT). These methods, called pattern recognition, extract features from images and feed them to some machine learning algorithm to find out meaningful patterns. Then the learned machine is then used for exploring patterns from unseen images. The radiologist can therefore easily find the information used for surgical planning or diagnosis of a patient through the Computer Aided Diagnosis. In this paper, we present a review on three widely-used methods applied to Computer Aided Diagnosis. The first one is the image processing methods which enhance meaningful information such as edge and remove the noise. Based on the improved image quality, we explain the second method called segmentation which separates the image into a set of regions. The separated regions such as bone, tissue, organs are then delivered to machine learning algorithms to extract representative information. We expect that this paper gives readers basic knowledges of the Computer Aided Diagnosis and intuition about computer vision methods applied in this area.