Synovial cysts are found mainly in periarticular areas of the wrist, ankle, and knee, but also rarely in the temporomandibular joint (TMJ). Only 1 case of bilateral synovial cysts in the region of the TMJ has been reported. This case report described bilateral cysts in the TMJ in a 54-year-old Korean woman. T2-weighted magnetic resonance imaging (MRI) revealed bilateral oval cystic lesions lateral to the condylar capsule, whereas computed tomography (CT) apparently did not show the right hand side lesion. The cyst on the left side was surgically excised, and fine needle aspiration was performed on the right hand cyst. After 24 months, the long term follow-up showed no sign of recurrence.

본 연구에서는 감성공학적 분석 방법론을 고안하여 직물 디자인 분야에 적용하고 그 효용성을 규명하였다. 방법론을 개발하기 위한 기초자료로서 직물 디자인요소와 이와 관련된 감성어휘를 수집하고 직물디자인요소계층도를 구축하였다. 수립된 직물디자인요소계층도상의 디자인요소에 관한 상대적인 중요도를 조사하여 디자인 요소별 가중치를 산출하고, 특정 디자인에 대하여 총체적인 감성수준과 디자인 요소별 감성수준을 측정한다. 측정된 요소별 감성수준을 Analytic Hierarchy Process 기법으로 종합한 감성수준을 비교한 결과 높은 상관관계를 보였다. 이 분석 방법론은 사전정보와 기술요소정보를 유기적으로 결합한 기반이 될 수 있는 합리적, 과학적인 개발 방법론을 제시하였다는데 큰 의의를 갖는다.

The purpose of this study is to assess a fire-damaged concrete structure using a digital camera and image processing software. To simulate it, mortar and paste samples of W/C=0.5(general strength) and 0.3(high strength) were put into an electric furnace and simulated from 100 ℃ to 1000 ℃. Here, the paste was processed into a powder to measure CIELAB chromaticity, and the samples were taken with a digital camera. The RGB chromaticity was measured by color intensity analyzer software. As a result, the residual compressive strength of W/C=0.5 and 0.3 was 87.2 % and 86.7 % at the heating temperature of 400 ℃. However there was a sudden decrease in strength at the temperature above 500 °C, while the residual compressive strength of W/C=0.5 and 0.3 was 55.2 % and 51.9 % of residual strength. At the temperature 700 ℃ or higher, W/C=0.5 and W/C=0.3 show 26.3% and 27.8% of residual strength, so that the durability of the structure could not be secured. The results of L*a*b color analysis show that b* increases rapidly after 700 ℃. It is analyzed that the intensity of yellow becomes strong after 700 ℃. Further, the RGB analysis found that the histogram kurtosis and frequency of Red and Green increases after 700 ℃. It is analyzed that number of Red and Green pixels are increased. Therefore, it is deemed possible to estimate the degree of damage by checking the change in yellow(b* or R+G) when analyzing the chromaticity of the fire-damaged concrete structures.

The current fire-damage inspection and safety diagnosis has not developed from the labour and time-consuming method. Data collected through traditional safety inspection and survey methods are less quantitative and causes irregularity to the database; thus data becomes impractical for long-term maintenance and analysis. Data by 3D Scanning are more precise and quantitative in calculating the damages by a fire, the amount to repair and reinforce; furthermore, in evaluating the safety of the structure.