• 동의생리병리학회지
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• 제21권6호
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• pp.1590-1596
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• 2007

Complementary and alternative medicine (CAM) has gained in popularity among cancer patients in recent years. The use of CAM in cancer patients is common with about one third of patients using some form of CAM in Western countries. The purpose of this study was to analyze the use of CAM and determine what factors affect to use CAM among cancer patients to provide CAM therapy information and assist therapy selection among various CAM therapies to cancer patients. The design of the study was descriptive cross-sectional, and data were collected using a 16-item questionnaire. This study was conducted in subjects with confirmed diagnosis of stomach, colon, liver, or pancreas cancer, in both out-patients clinics and inpatients setting in a tertiary hospital in Seoul Korea. As a result, among the participants, past or current CAM use was reported by 75%, which shows a statistically significant difference in income groups(P<0.05), but no difference in age and religion groups. The most common therapies use by cancer patients included traditional Korean medicine (32.1%), folk remedies (26.6%), exercise (14%), dietary supplements (11.6%), physical therapy (9.9%), diet therapy (5%), and meditation (4%). 77.8% of patients show satisfaction and 64.4% shows perceived effectiveness of CAM. Male patients with higher income, and previous treatment were more likely to use CAM. The main benefits from CAM reported by cancer patients were psychological improvement and symptom improvement. Of the cancer patients used CAM, 30.9% were dissatisfied, 25.8% did not have benefits from the use, and 7.6% experience side effects. Cancer patients who prefer CAM (more than 3 kinds) used it to cure cancer, on the contrary, the one who do not prefer CAM used to improve symptoms and psychological stability. The main sources of information about CAM were family and friends(54.4%), and media(24.5%), doctor and nurse(18.3%), and religion group(2.6%). Findings suggest that due to the relatively high use of CAM among cancer patients in Korea, this topic should be taken into account in the development of a holistic approach to cancer patients and efficient cancer patients management system and proactive and consistent management of CAM is necessary in the health care system in Korea.

• 한국정밀공학회지
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• 제15권8호
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• pp.174-182
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• 1998

This paper describes a research work of developing a computer-aided design and machining of irregular shaped-sheet metal product for blanking or piercing operation. An approach to the CAD/CAM system is based on the knowledge-based rules. Knowledge for the CAD/CAM system is formulated from plasticity theories, experimental results and the empirical knowledge of field experts. The system has been written in AutoLISP on the AutoCAD and in customer tool kit on the SmartCAM with a personal computer and is composed of nine modules, which are input and shape treatment, flat pattern-layout, production feasibility check, blank-layout, strip-layout, die-layout, data conversion, modelling, and post-processor module. Based on knowledge-based rules, the system is designed by considering several factors, such as material and thickness of product, complexities of blank geometry and punch profile, diameter and material of a wire, and availability of press. This system is capable of generating NC data automatically according to drawings of die-layout module. Results which are carried out in each module will provide efficiencies to the designer and the manufacturer of blanking or piercing die in this field.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 춘계학술대회 논문집
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• pp.267-268
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• 2006

Cam mechanisms are one of the most popular devices for generating irregular motion and are widely used in many industrial areas. The purpose of this study is the development of high precision measuring system fur measurement data acquisition and analysis of a manufactured cam profile. The developed system is composed of servo motor, CNC controller, rotary encoder, and laser interferometer And also, this system is non-contact measuring type. The developed system takes only 5 minutes to measure a cam profile and to analyze the measuring data while the CMM(coordinate measuring machine) takes about 1 hours even by a skilled operator.

• 대한기계학회논문집
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• 제16권11호
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• pp.2049-2058
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• 1992

본 연구에서는 OHC형 캠-밸브 기구의 6자유도 집중 질량계 모델을 기본으로 하고, 밸브변위와 선회종동자(oscillating-follower or finger-follower)의 동적 스트 레인을 측정하여 모델의 타당성을 검증하고, 또 최적화 기법을 도입하여 밸브 개폐시 기, 밸브변위 그리고 최소 접촉력 등을 구속조건으로 주고 캠과 종동자 사이의 최대 접촉력을 최소화 시키도록 최적 캠 형상을 설계하였다. 그리고 설계된 캠을 정밀 가 공하여 최적화 설계의 타당성 및 접촉력을 실험을 통하여 검증하였다.

• 문화기술의 융합
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• 제6권4호
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• pp.123-130
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• 2020

쥬얼리 CAD, CAM 등의 자동화 시스템이 도입되기 이전의 쥬얼리 제조 산업은 핸드메이드, 즉 손으로 직접 만드는 방식의 원본 제작이 많았다. 그러나 자동화 시스템의 도입이후 고급기술을 가진 원본 세공기사들은 사라지고 컴퓨터디자이너와 3D프린팅 출력 기사들이 그 자리를 대신하는 추세이다. 기존의 헨드 메이드 방식의 생산라인에서 CAD, CAM 등 자동화 시스템의 도입은 디자인의 다양화, 쥬얼리 제조의 첨단화, 전문화를 이루었다. 국내 쥬얼리 산업에서 제작 공정 시 CAD, CAM등의 자동화 시스템의 의존도가 지속적으로 높아지고 있으며 대학의 쥬얼리디자인 교육과정에서도 점점 많은 부분을 차지하고 있는 실정이다. 이러한 결과로 볼 때 앞으로 쥬얼리 제조 산업에서의 CAD/CAM 자동화 시스템분야는 꼭 필요한 중요한 분야가 되고 있다.

• 농업과학연구
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• 제22권1호
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• pp.11-23
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• 1995

The CAD/CAM system for the manufacturing automation is the newest technology in mechanical engineering area and becomes the important research subject nowadays. Most of all hardwares and softwares for the CAD/CAM system used in the our manufacturing companies such as automobile company are developed by the foreign country and the purchasing price of them is very expensive but their applicability to a certain area is very limited. This study was conducted to develope a CAD/CAM system for the design and the automatic manufacturing of the iron pattern shaped with 3 - dimensional free curved surface, and to test its applicability to the design and the manufacturing of the rotary blade. The results obtained from the study are as follow; 1. The CAD system which can process graphic procedures from the free curved surface shaped data was developed with personal computer. 2. The CAM main program was developed. This main program could produce CL data from CAD data file by checking the tool interference according to the cutting mode. 3. The sub. program which can simulate the tool trace from the CL data was developed. 4. The post processor for the Deckel FP2NC NC milling machine from CL data file was developed and the sub program could transmit NC program through modem to NC milling machine was developed. 5. The developed CAM system seemed to be applicable to any other system. Because the measuring results of the cross sectional thickness of the plastic model from the manufacturing iron pattern by the system showed that this system could properly check the tool interference. 6. In took 75~90 hours to manufacture two iron patterns of rotary blade. For the sake of convenience in applying to the other systems, this system was developed in BASIC and FORTRAN computer language and minimum portion of machine language as possible.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.410-415
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• 1997

Recently, The manufacturing companies are introducing the CAD/CAM systems to solve problems for the lack of experts, the higher cost of manufacturing and the difficulties of process. Knowledge engineering approach makes it possible to change a know-how of experts to computerized information effectivly. The proposal of this paper is the development of an interactive knowledge-based CAM system to disign and manufacture the mold with non-expert engineers used easily. This system is composed of two functional parts. One is the geometric modeler that used the technique of a feature modeling. The other is the expert system module that composed inference engine and databas which contains characteristics of materials and cutting tools setc.

• 농촌의학ㆍ지역보건
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• 제33권2호
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• pp.181-192
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• 2008

Objective: The use of complementary and alternative medicine (CAM) is common especially among patients with osteoarthritis The aim of this study was to investigate the utilization rate and expenditures of patients who use CAM. Method: Two hundred seventy four patients with osteoarthritis were interviewed by a telephone survey. A structured questionnaire about sociodemographic features and type, cost, satisfaction and reason of CAM utilization was used Results: Among 274 patients with osteoarthritis, 251 patients(91.6%) had used at least one type of CAM during six months. There was a significant difference in sex (female), age (70 years), medical security (insurance), educational level between the user and non-user of CAM. Hyperthermia was the most use. The average cost for CAM utilization was 120 thousands won/person during six months and there was no difference in sociodemographic features among the out-of-pocket cost of users. The scores of satisfaction for CAM use were ranged between 60-70. Conclusions: CAM became a popular source of health care because of elderly and lay referral system. And Korean spent a substantial amount of out-of-pocket money on CAM without benefit. Health care system and professionals should pay more attention to CAM, make a evidence for CAM.

• 대한치과보철학회지
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• 제55권4호
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• pp.436-443
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• 2017

과거의 computer-aided design/computer-aided manufacturing (CAD/CAM) 기술 형태는 사용자가 한 제조사의 구성요소만 사용해야 하는 폐쇄적인 시스템이었다면, 현재는 여러 제조사의 구성요소 중 사용자가 필요에 맞는 구성요소를 선택해서 사용할 수 있는 유연성을 가진 개방적인 시스템 형태로 변화하였다. 치과재료와 보철물 제작 기술의 발전에도 불구하고 의치 제작은 지난 100년 가까이 전통적인 제작방식을 따랐다. 하지만 최근 들어 기존 의치 제작의 단점을 보완하고자 CAD/CAM 제작 의치에 관한 연구가 활발히 이루어지고 있으며, 밀링이나 3D 프린팅을 이용해 상용화된 형태의 CAD/CAM 제작 의치가 이미 임상에서 쓰이고 있다. 본 증례는 3D face scan을 활용한 CAD/CAM 의치 제작의 가능성을 확인하고, CAD/CAM과 전통적인 방법으로 제작한 의치를 비교한 결과에 대해 보고하고자 한다.

• 대한기계학회논문집
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• 제14권3호
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• pp.534-546
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• 1990

본 연구에서는 선회 종동자(oscillating follower)를 사용하는 캠 기구(대표 적인 기구중 하나인 자동차용 OHC 형 캠-밸브 기구)에 대해서 동역학적 특성을 고려하 여 종동자 형상과 캠 형상을 동시에 합성하고자 한다.