• Journal of the Korea Institute of Building Construction
• /
• v.3 no.1
• /
• pp.131-138
• /
• 2003

Contemporary architecture calls for a wide range of surface textures and treatments. A surface compatible with the architect's design may vary from a glass-smooth finish to one requiring special sculptured ornamentation. These surfaces require many different types of form sheathing and lining. The purpose of study is development of new design form and made elaborateness shape. Architecture finish material not used expenses working hours, personnel expenses, architecture finish material cost. After this, building wall apply a variety shape in concrete surface and Easy to used in field.

• Journal of Korean Association for Spatial Structures
• /
• v.16 no.3
• /
• pp.59-66
• /
• 2016

This study analyze the dynamic response property of latticed domes according to natural frequency ratio of substructure. Through eigenvalue analysis, it is was confirmed that the half-open angle $30^{\circ}$ and $45^{\circ}$ dominate vibration mode of the vertical direction and the half-open angle $60^{\circ}$ and $90^{\circ}$ dominate vibration mode of the horizontal direction. Through the dynamic response analysis, it is was confirmed that the first frequency about total structure largely appears about the vertical and the horizontal direction regardless of half-open angle.

• International Journal of Ocean System Engineering
• /
• v.2 no.4
• /
• pp.250-258
• /
• 2012

The distribution of wave heights is assumed to be a Rayleigh distribution, based on the assumption of a narrow band and Gaussian distribution of wave elevation. The present study was started with doubts about the narrow band assumption. We selected the wave spectra widely used to simulate irregular random waves. The wave spectra used in this study included the Pierson-Moskowitz spectrum, Bretschneider-Mitsuyasu spectrum, and JONSWAP spectrum. The directionality of the waves was considered. The cosine 2-l type directional spreading function and mixed form of the half-cosine 2-s type with Mitsuyasu type directional spreading are considered here to investigate the effects of a directional spreading function on random waves. The simulated wave height distribution is compared with a Rayleigh distribution.

• International Journal of Aeronautical and Space Sciences
• /
• v.4 no.2
• /
• pp.37-50
• /
• 2003

A next generation small satellite HAUSAT-1, the first picosatellite developed in Korea, is being developed as one of the international CubeSat program by Space System Research Lab. of Hankuk Aviation University. A fault-tolerant incremental design methodology has been addressed in this paper. In this study, the effect of system redundancy on reliability was in details analyzed in accordance with the implementation of fault-tolerant system. Four different system recovery levels are proposed for HAUSAT-1 fault-tolerant system optimization. As a result, the HAUSAT-1 fault-tolerant system architecture design and reliability analysis has acquired about 11% reliability improvement.

• Journal of Korean Association for Spatial Structures
• /
• v.16 no.4
• /
• pp.13-17
• /
• 2016

• Proceedings of the SAREK Conference
• /
• 2004.11a
• /
• pp.136-136
• /
• 2004

• 제어로봇시스템학회:학술대회논문집
• /
• 2002.10a
• /
• pp.111.3-111
• /
• 2002

$\textbullet$introduction $\textbullet$CO-evolution Algorithm $\textbullet$Subsumption Architecture $\textbullet$Neural Network $\textbullet$Khepera Robot

• Proceedings of the Korea Society of Design Studies Conference
• /
• 2005.10a
• /
• pp.42-43
• /
• 2005

• Proceedings of the SAREK Conference
• /
• 2007.06a
• /
• pp.95-95
• /
• 2007

• Proceedings of the SAREK Conference
• /
• 2007.06a
• /
• pp.94-94
• /
• 2007