• Proceedings of the KWS Conference
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• 2006.10a
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• pp.77-79
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• 2006

While RSW(Resistance Spot Welding) have been the most successful sheet metal joining process in automotive industry, there are certain qualify issues due to the control system and its application process. Recent materials and coatings make the process more complicated resulting in new challenges for quality welds. In this research, an intelligent RSW system with adaptive control algorithm is introduced to overcome typical RSW issues and its applications to automotive body assembly are presented.

• Tribology and Lubricants
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• v.3 no.2
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• pp.72-80
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• 1987

A planocentric torque driver comprises a stationary internal gear with the teeth of a circular concave profile and an external gear of an epitrochoid curve. The contact mechanism of the teeth is examined and analyzed by means of computer simulation. Analyses of load variation on the tooth and strength of appliance is carried out. And the output device is examined. Finally, the design of a 59:1 reduction ratio torque driver is presented.

• Journal of Radiation Protection and Research
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• v.11 no.1
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• pp.83-89
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• 1986

High energy radiation therapy using accelerator or radioioisotope teletherapy unit is now one of the most important modality in the field dealing with human malignant tumor. It's successful technology overcomes incurable disease to change into curable disease not only by the improvement of clinical technique but also by the development of radiation physics and biology. The author presented the principles of radiation therapy by means of basic knowledge of medicine. physics and biology, described the various ways to improve the result of radiation therapy, and reviewed recent status of radiotherapy field in Korea.

• The Bulletin of The Korean Astronomical Society
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• v.32 no.1
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• pp.30.2-30.2
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• 2007

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.07a
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• pp.457-457
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• 2004

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.07a
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• pp.455-455
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• 2004

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.07a
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• pp.456-456
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• 2004

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2004.10a
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• pp.531-534
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• 2004

최근의 웹 서비스 기술은 주문을 받아서 만드는 클라이언트 애플리케이션을 위한 서비스 수단을 제공하기 위해 기능이 향상된 솔루션으로 개발되고 있다. 특히 웹 서비스는 현재의 웹 포털 사이트보다 서버들로 융통성 있는 접근을 제공한다. 즉 웹 서비스를 사용하는 것은 클라이언트 애플리케이션이 인터넷을 단순하게 표시하는 기능만을 하는 것이 아니라 시스템간의 정보 교환을 자동화함으로써 프로세스의 성능을 향상시키는 것이다. 이 논문에서는 웹 서비스 기반 eCard 메일 전송 시스템을 기술하고, 시맨틱 웹 서비스 언어를 이용하여 eCard 웹 서비스를 표현하는 것에 대해 기술한다.

• Review of KIISC
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• v.26 no.2
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• pp.39-44
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• 2016

eID는 여러 편의성을 제공하지만, 개인정보보호의 불확실성에 대한 우려로 활성화가 쉽지 않다는 단점이 있다. 이미 선진국에서는 eID의 도입을 추진해 왔으며 특히 EU에서 적극적으로 시도한 바 있다. 안전한 eID 시스템을 위해서는 개인정보보호 뿐 아니라 시스템 자체의 보안에 대한 고려도 동시에 이루어져야 한다. 보안성이 신뢰되지 않는다면, 개인정보보호에 대한 신뢰도 존재할 수 없을 것이다. 본 고에서는 EU에서도 특히 활발한 움직임을 보이고 있는 독일의 eID 현황 및 보안 메커니즘을 살펴본다. 그리고 안전한 eID 시스템 구성을 위한 보안 요구사항을 분석한다.

• Proceedings of the IEEK Conference
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• 2003.11a
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• pp.369-372
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• 2003

In this paper, we propose impr oved binary tree vector quantization based on spatial sensitivity which is one of the human visual properties. We combine the weights based on spatial masking effect according to changes of three primary colors in blocks of images with the process of splitting nodes using eigenvector in binary tree vector quantization. The test results show that the proposed method generates the quantized images with fine color and performs better than the conventional method in terms of clustering the similar regions. Also the proposed method can get the better result in subjective qualify test and PSNR.