• 대한치과의사협회지
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• 제52권1호
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• pp.17-26
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• 2014

Computerized 3D virtual dental models are currently available, and their use has started to improve treatment outcomes. The accuracy of digital models has been demonstrated by many studies and various intra-oral scanners are innovated for short scanning time and high precision. Recently, a digital model was combined with a high technology computer-driven system, which was developed for the application of a digital set-up and indirect bonding of lingual attachments. In this section, virtual treatment planning using a virtual set-up program is be introduced, and the clinical applications and accuracy of computer-generated indirect bonding are discussed.

• 대한기계학회논문집
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• 제17권9호
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• pp.2286-2293
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• 1993

The study presents the development of a cost-effective CAD/CAM system for metal moulds by use of personal computer. In the personal CAD/CAM system named DKSYS, metal moulds are defined by the operations of basic elements such as prism, pyramid and sphere, plane, rotational body, and surface elements including curved surface. The internal expression of shape elements in the computer is based on the wire model, which is a set of cross-sectional curves of the shape elements. With the addition of OMS system to CAD/CAM system the optimum cutting condition can be selected automatically. After programming NC information with the form definition and the optimum cutting condition, the metallic mould can be formed by transferring cutting information to CNC machine through DNC system. Using a computer for the above process, it is possible to increase the productivity and reduce the cost.

• 한국기계가공학회지
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• 제3권2호
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• pp.86-94
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• 2004

The flash temperature distribution on the contact surfaces between cam and roller-follower mechanism was analysed numerically. The elasto-hydrodynamic lubrication pressure and film thickness were used to get the accurate analysis results. The temperature distribution was obtained by numerical integration by making use of Carslaw and Jaeger's formulation to the whole contact surfaces. The maximum flash temperature was increased with both the increasing slip ratio of the contact surface and increasing external load Profile of the temperature distribution was affected by the sliding velocity of the surface.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 춘계학술대회 논문집
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• pp.569-574
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• 2002

As consumer's desire becomes various, agility of mold manufacturing is most important factor for competence of manufacturer. In common works to use commercial CAM system to generate tool path, some decision making process is required to produce optimal result of CAM systems, The paper proposes a methodology for computer-assisted tool selection procedures for various cutting type, such as rough, semi-rough and finish cuts. The system provides assist-tool-items for machining of design model part of injection meld die by analyzing sliced CAD model of die cavity and core. Also, the generating NC-code of the tool size is used to calculate machining time. The system is developed with commercial CAM using API. This module will be used for optimization of tool selection and planning process.

• 한국CDE학회논문집
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• 제10권1호
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• pp.11-16
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• 2005

CAD/CAM system may have such advantages of cost reduction, production time shortening, and product quality improvement. But current advanced versions of CAD/CAM system for 3-D NC data generation are too much expensive to purchase and too difficult to make full use for small-scale manufacturers whose main products are of 2-D simple shapes. The objective of this paper is to introduce a cost-effective way to 2-D NC data generation with a widely spread CAD software. Using VISUAL LISP in the well-known AUTO-CAD, the contents and steps of an automatic NC data generation program are presented for 2-D machining of contours and pockets. To approve the usefulness of program, a test application to a real part is exhibited also.

• 한국정밀공학회지
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• 제16권9호
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• pp.143-148
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• 1999

G code has to be made after changing the drawing information to DXF file, the converting file. When the information is changed, the converted file had the unnecessary time of rapid feed during working and the large DATA capacity. It need for arranging the information ordered irregularly. This CAM program based AutoCAD can be decreased uncomfortableness in contrast to use of each system. Also it can be increased productivity by arranging information. And it can be used easily for the beginner of the minor enterprises. its program can be decreased system error between others by using one system and increased work efficiency by using DCL.

• 대한한방내과학회지
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• 제29권1호
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• pp.160-176
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• 2008

Objective : We designed this study to analyse the Natural Standard methodology and apply the results to new study and evaluation methods. Methods : We investigated the main stream of complementary and alternative medicine (CAM), the methodology of Natural Standard, guideline in CAM, and concrete 35 cancer-related herbs and dietary supplements in 98 ones. Results : There are 35 graded herbs and supplements associated with cancer in natural standard contents: 9 foods, 17 herbs, 7 amino acids, enzymes and vitamins, and 2 herbal mixture formulas. Most of them get a grade of C: unclear or conflicting scientific evidence. Conclusion : Natural Standard aims to provide high-quality, reliable information about CAM therapies to clinicians, patients, and healthcare institutions. The more demands for and use of CAM grows, the more the needs for related studies increases. According to this international and multidisciplinary collaborative effort, we have to develop how to study and evaluate the results. We need guidelines in association with the evidence and recommendations of CAM.

• 대한심미치과학회지
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• 제23권1호
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• pp.16-26
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• 2014

CAD/CAM에서 사용할 수 있는 소재는 composite, ceramic, hybrid 그리고 metal이 있다. 그중에 진료실 CAD/CAM에서는 주로 monolithic ceramic 테크닉을 사용하는 데, monolithic ceramic 테크닉이란 한 가지 소재로만 제작하는 방법을 말한다. 블럭상태의 소재를 최종치아형태로 깎아 폴리싱해서 사용하거나, 열을 가해서 사용하는 방법으로, 기존의 도재 축조 작업이 필요 없다. 심미성에서는 다소 부족하지만, 1시간 안에 제작이 가능하므로 1회, 1일 방문으로 치료를 완료할 수 있고, 소재의 안정성이 높으며(녹이거나 상변화를 시키지 않음에 따라 왜곡이 생기거나 강도가 약해질 가능성이 적음), 컴퓨터 조작(CAD 작업)으로 치아를 디자인하여 제작하므로 진료실에서 쉽게 작업할 수 있다는 장점이 있다. 이 테크닉에 사용할 수 있는 소재를 임상적 관점에서 세대별로 따라 분류해 보았다.

• 대한약침학회지
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• 제24권2호
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• pp.84-90
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• 2021

Objectives: Our study aimed to determine the attitudes of second- and final-year medical students and doctors (teaching faculty) of modern medicine towards complementary and alternative medicine (CAM) using the Complementary, Alternative, and Integrative Medicine Attitude Questionnaire (CAIMAQ). Methods: We invited 248 second-year medical students, 245 final-year medical students, and 48 faculty members to participate in the study. The CAIMAQ consists of 30 items, divided into five categories assessing various aspects of CAM, and scored using a 7-point Likert scale. The median scores obtained were compared between groups; a p-value < 0.05 was considered statistically significant. Results: A total of 138 medical students and faculty responded and participated in the study, of which, 24 (17.4%) were faculty, 40 (29%) were final-year medical students and 74 (53.6%) were second-year medical students. The overall attitude towards the various CAM concepts and therapies was positive. In general, the faculty were significantly less likely to consider referring patients for CAIM treatments, integrating them with conventional medicine, referring patients to alternative healthcare providers, considering the use of subtle energy fields as an ethical form of treatment, or considering CAIM treatments to be less invasive and harmful compared with conventional medicine. There was no significant difference in the attitudes of second- and final-year students. Conclusion: The attitude of medical students and doctors towards CAM is positive, and although the medical faculty have reservations in recommending specific types of CAM therapies or integrating them with conventional care, building evidence for supporting CAM therapies in specific diseases is likely to increase its uptake among health care professionals.

• 대한예방한의학회지
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• 제28권2호
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• pp.31-54
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• 2024

Objectives : The purpose of this study is to review the current status of Complementary and Alternative medicine (CAM) in Canada, and derive its implications for Korean Medicine (KM). Methods : In order to understand the current status of CAM in Canada, a literature survey was conducted using academic databases such as PubMed, OASIS, RISS, and Google Scholar, and CAM regulations were identified through each state's legal website. Official documents provided on the Canadian government were referenced, and publications and official information were searched on the websites of related organizations. Results : In Canada, accredited CAM therapies include acupuncture, traditional Chinese medicine, natural therapy, massage therapy, homeopathy, and chiropractic. Regulations on these therapies vary from state to state in Canada, but all have laws, and education, licenses, organizations, and insurance systems are also regulated. In particular, the education and licensing system for natural therapy and chiropractic are relatively strict, and as a result, therapists can use the name of a doctor. The authority of CAM therapists is based on education. Conclusions : CAM therapies authorized in Canada have systematic regulation, and therapists have also been legally granted expertise. It may be surmised that the accumulation of policy and clinical evidence is important as one of the ways to maintain the expertise of KM.