• Proceedings of the KAIS Fall Conference
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• 2004.11a
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• pp.77-79
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• 2004

Optical Disc(DVD) 생산 공정에 있어서 생산 효율성을 극대화하는데 많은 어려움이 존재한다. 최적공정 변수를 예측하기가 어렵기 때문에, 사출 성형 공정 시 발생하는 여러 가지 불량에 대한 체계적인 기술이 정립이 되지 않고 있는 실정이다. 본 연구는 Optical Disc 생산 시 요구되는 일반적인 사항들을 고찰하고, 불량품을 최소화하기 위한 여러 가지 사례연구 및 분석을 통하여 얻어진 지식을 바탕으로 문제 해결을 위한 지능형 시스템을 개발하였다.

• Journal of radiological science and technology
• /
• v.16 no.2
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• pp.61-72
• /
• 1993

• Proceedings of the Korea Information Processing Society Conference
• /
• 2007.11a
• /
• pp.958-961
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• 2007

본 논문에서는 IETF ECRIT (Emergency Context Resolution with Internet Technologies) WG 에서 논의 중인 LoST (Location-to-Service Translation)를 기반으로 사용자의 현재 위치에서 적절한 서비스를 검색하여 정보를 전송하는 서비스 모델을 연구 및 구현하였다.

• Proceedings of the PSK Conference
• /
• 2000.10a
• /
• pp.146.2-146.2
• /
• 2000

• Proceedings of the PSK Conference
• /
• 2001.04a
• /
• pp.116.1-116.1
• /
• 2001

• Proceedings of the PSK Conference
• /
• 2001.04a
• /
• pp.131.1-131.1
• /
• 2001

• Proceedings of the PSK Conference
• /
• 2001.04a
• /
• pp.115.1-115.1
• /
• 2001

• Journal of Drive and Control
• /
• v.19 no.1
• /
• pp.81-85
• /
• 2022

• Proceedings of the Korean Society of Medical Physics Conference
• /
• 1999.11a
• /
• pp.68-68
• /
• 1999

• Journal of radiological science and technology
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• v.1 no.1
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• pp.25-29
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• 1978

This study was done for the purpose of graphing rather improved technique through reviewing conventional technigue of the thoracic vertebrae lateral projection. The roentgenographic images which were taken at Korea University Hospital from January, 1976 to December, 1977 were observed for this study. The results were as belows: 1. The quality of diagnostic radiograph turned out that good is 21.4%, intermediate is 40.7% and poor is 37.9%. 2. The poor quality of images the caused by overlapping shadows(59.6%), incorrect position of patients(15.0%), motion of patients(7.5%), over-exposure(8.3%), under-exposure(6.7%) and processing faults(2.9%). The images were taken by following four methods of experiments were campared and researched in order to improve the problems of conventional technigues which were came out on the poor radiographes. 1. (Method 1) Low mA-long time exposure during normal respiration 2. (Method 2) Short time exposure during normal respiration 3. (Method 3) After deep inspiration, short time exposure during expiration 4. (Method 4) After full expiration, short time exposure during inspiration. In a result of the above experiments, it was found that the improved image could be got from the method 3.