• Proceedings of the ESK Conference
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• 1998.04a
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• pp.87-92
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• 1998

It is needed that the small, cheap and low power dissipated image stabilizing system is used in a small camcorder. It is essential to detect the hand shake of human exactly for the good design of image stabilizing system. In this study, the hand shake is measured by the experiment on 17 peoples in peak-to- peak voltage and frequency. The shake of image by hand by hand is independent of human age or weight, and dependent of calmness of character or concentration of mind.

• Proceedings of the ESK Conference
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• 1992.10a
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• pp.35-38
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• 1992

눈의 여러가지 기능 중 장애를 입게 되어 나타나며 일상생활에 지장을 초래하는 시각상의 장애를 가진자를 시각 장애인이라 한다. 인간은 외부에서 입수되는 정보의 80% 정도가 시각을 통해서 들어오게 되는 데, 시각 장애자는 충분한 정보를 접할 수 없기 때문에 일상 생활에서 많은 불편을 겪는다. 복지 사회를 표방하는 우리나라의 경우, 이들 시각 장애자 들도 정상인들과 다름없이 생활 할 수 있도록 각종 편의 시설과 보조기구를 개발 제공해 주어야 함에도 불구하고 이에 대한 보살핌이 미약한 실정이다. 본 연구에서는 시각장애자들을 위해서 공공 시설물 가운데 카드 공중 전화기를 택하여 이들이 사용하기 편리하도록 디자인 하였다.

• The Journal of Korean Academy of Prosthodontics
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• v.33 no.2
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• pp.354-357
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• 1995

The secondary ion of titanium from commercially pur titanium implant which installed at Rabbit tibia. Was analyzed by Secondary lon Mass Spectroscopy. And we detected about 3476 ppm ion from $10-50{\mu}m$ distance from interface.

• The Journal of Korean Academy of Prosthodontics
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• v.22 no.1
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• pp.69-71
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• 1984

The surface smoothness of dental porelain after the use of various staining and glazing technique was examined by scanning electron microscopy. 1. Autogenous self-glazing technique produced a most rough surface. 2. The fixation of stain at $1,500^{\circ}F$ followed by thin slurry of glaze powder air fired to $1,800^{\circ}F$ produce the most smooth surface. 3. The technique thin sluny of glare powder followed by slurry of stain powder air fired to $1,800^{\circ}F$ produce the poor result.

• Proceedings of the ESK Conference
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• 1995.04a
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• pp.187-198
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• 1995

The physiological change of eyes while viewing 3D TV was investigated. The change of pupil size was used as the measure of evaluation. The results are as follows: (1) The pupil size decreases after viewing 3D images. (2) The indoor illumination has a significant effect on the pupil size in both 2D and 3D cases. (3) Less change of pupil size were observed under the indoor illumination. Thus, if we only focus on the visual load on the eye, for viewing 3D images, it will be better to use indoor illumination.

• Journal of the Ergonomics Society of Korea
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• v.11 no.1
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• pp.13-19
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• 1992

This paper deals with the legibility of Korean characters(Hangeul) on car number licence plates. We focus of the height-width ratio as key factor affecting the legibility in experimental procedures. The results of experiments are; i) For vertica characters, the vest height-width ratio was 1:1 for 3 throuth 5 stroke characters, and 4:5 for 6 and 7 stroke characters. ii) For horizontal characters, the best height-width ratio was 1:1 for 3 through 5 stroke charcters, and 5:4 for 6 and 7 stoke characters.

• 한국전산유체공학회:학술대회논문집
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• 2006.05a
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• pp.203-206
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• 2006

• 한국전산유체공학회:학술대회논문집
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• 2006.05a
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• pp.285-287
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• 2006

• 한국전산유체공학회:학술대회논문집
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• 2006.05a
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• pp.329-332
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• 2006

• 한국전산유체공학회:학술대회논문집
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• 2006.05a
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• pp.113-115
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• 2006