• Proceedings of the Korea Concrete Institute Conference
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• 2004.05a
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• pp.774-777
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• 2004

This study was performed to evaluate joint behavior for the application of hybrid bridges by experiment of 14 beams according to penetration length, amount of reinforcing steel and stud and prestressing stress. By tests results, prestressing stress was more effective than amount of stud or reinforcing steel. And the spacing of stud is also more effective than penetration length. Especially, all beams were failed by turns desertion of reinforcing steel, stud, and steel plate.

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2008.05a
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• pp.131-131
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• 2008

• Proceedings of the Korea Concrete Institute Conference
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• 2005.05a
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• pp.411-414
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• 2005

This paper presents how to design and construct the Il-sun bridge, the first PSC box girder bridge with Corrugated Steel Web(CSW) in Korea, including 3D analysis results according to construction steps. Also, the 3D analysis for the beams with CSW was performed for the purpose of verifying the role of the flange plate. As the results of this analysis, it is founded that the flange plate plays a role to resist the flexural strength in the nonlinear region. In the near future, we are plan to carry out the load test for these beams with CSW.

• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.380-383
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• 2007

In this research, we present color filter which is patterned by screen printing method. Analysis of screen printing process, screen printing system, experiment for uniform printing in large area, characteristics of screen printed CF are investigated .In spite of limitation of precision, screen printed color filter is very cost- effective in respect of manufacturing facility and ink usage.

• Journal of Information Display
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• v.7 no.1
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• pp.25-29
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• 2006

By the voltage threshold (Vt) close-curve measurement method, the changes in the discharge characteristics such as a firing voltage and IR emission among the three electrodes were examined relative to the low or high panel temperature ranging from -10 to $80^{\circ}$. The variation in the panel temperature was found significantly influence the surface discharge between the MgO surfaces rather than the plate gap discharge between the MgO and phosphor layers. Based on this experimental observation, a modified reset waveform that alleviates the surface discharge during a ramp-up and -down period was deeloped. By adopting the proposed reset waveform, a stable address discharge could be obtained irrespective of the panel temperature variation.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2007.11a
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• pp.345-347
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• 2007

This paper describes a case study on the failure cause analysis of power cables and their fittings. For more accurate analysis, electrical and chemical analysis techniques were employed from the macrography stage for the exterior of the cables to the entire disassembly stage. As a result it was confirmed that the power cables failed due to improper fabrication by which electric field was concentrated at the deadend of a shrink tube on the cable.

• The Korea Genome Conference
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• 2002.08a
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• pp.49.1-49.1
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• 2002

• The Transactions of the Korean Institute of Electrical Engineers D
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• v.54 no.3
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• pp.141-147
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• 2005

In the field of electrical industry, embedded computing environment including hardware and software is getting more important as the industry shifts to the knowledge-based one. Java could play a great role as bridging technology in such a transition because it provides a lot of benefits like dynamic application download, compatibility of cross platform, and its own security solution. However, the Java technology has a limitation of real-time problem when it is applied to the embedded computing system of the electrical industry. To solve the problem, a novel java-native combination model has been proposed and designed to a firmware level. This scheme has been employed in four kinds of control boards. The result shows that the proposed model has great potential to implement the real-time processing in control of the devices.

• Proceedings of the PSK Conference
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• 2002.04a
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• pp.94-95
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• 2002

• Korean Institute of Interior Design Journal
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• v.16 no.6
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• pp.232-239
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• 2007

The purpose of this study was to analyze the preference of street furniture and to suggest street furniture design guideline in Kwang-Ju city Subjects consisted of 197 residents in Kwang-Ju city, Kyung-ki area. The data were analyzed using the SPSS statistical package. The results of descriptive statistics, factor analysis, t-test and ANOVA are presented. The result of this study showed that residents of Kwang-Ju city were not satisfied with street furniture, especially the wastebasket. Natural, easy and simple design for street furniture were highly appraised. And there were distinct differences in preferences of street furniture by sex and age groups. Women group wanted warmer and richer design than the other groups. Older age group wanted more curved and active design than the other groups. Considering these results, it is desirable to apply flexible and unique design according to the various characteristics of users and the region rather than to apply strict and standardized design. These results provide a practical guideline for the development of the street furniture design.