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Because hotels contain the cultural and artistic information of an era and plays a role as an iconic building to experience the unique regional culture, they are more than just a building. In recent years, as Jeju is emerging as a popular tourist city, a multi-functional and systematic plan for hotels is needed. Therefore, this study provides basic design data for hotel construction in the future by analyzing the public space of the luxury tourist hotels on Seogwipo-si. The public space of hotels, divided into service, food and beverage, banquet, leisure and convenience space, are categorized in terms of the cross combination type, entrance space form, plan type, unit space form to understand their relativity in the public space of hotels. This study reviewed the hotel construction based on the reference and literature, and, visited the sites to determine the current general status of hotels and then analyzed the architectural planning factors and spatial composition types.

For the evaluation of acoustic noise of a DLP projector, vibration and sound characteristics of a DLP projector were studied. The acoustic noise of DLP projector could be classified into three categories, that is, the direct noise from a body of rotation, the air-bone noise generated from turbulence or vortex occurred during cooling process and the structural born noise produced by vibrating elements. Cooling fans and color filter wheel which rotates at 9000 rpm are main causes of acoustic noise induced in DLP projector. Since the structure of an optical module in a DLP projector can be excited by the excessive vibration of a color filter wheel, the structural design for anti-vibration should be considered. To make a reduction of overall acoustic noise, the anti-vibration design and the enclosing structure have been studied and applied to a color filter wheel.