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이영웅,정재훈,강현우,이창훈,김현구,임인성,김봉규,Lee, Y.,Jung, J.H.,Kang, H.W.,Lee, C.H.,Kim, H.G.,Kim, I.S,Kim, B.G. 한국천문학회 2010 天文學論叢 Vol.25 No.1
We present results of a test-study of the large-scale survey using the multi-beam receiver system recently installed on the 14 m telescope at Taeduk Radio Astronomy Observatory (TRAO). We have tested several modes of mapping, and found suitable (time-saving) mapping parameters of 'ON-SOURCE' = 8, 'OFF-SOURCE' = 1 when using 'RPT' = 3 as a position-switching mode. We observed 504 spectra towards the NGC 7538, a star forming molecular cloud in the transition of J = 1 - 0 of $^{12}CO$. From the Outer Galaxy Survey database (Heyer et al., 1998) we obtained 504 spectra for the same region. We compared integrated intensities, line profiles of two databases, and found that they are consistent to each other. From the intensity ratio of these two databases we also found that the value of forward spillover scattering of the TRAO telescope system is 0.58.
이강용(K.Y.Lee),이영웅(Y.W.Lee),김진(J.Kim) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
To evaluate the optimal joining method in the aspect of stiffness and strength of Al space frame in the electric vehicle, the stress analysis by FEM and strength test was performed. As a result, the strength of adhesive bonded joint was highly affected by the overlap length, bonding thickness and type of adherend. In the joining method of frame, node and bonding method was excellent in the aspect of stiffness and strength.