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rpoB 염기서열 분석을 이용한 응고효소 음성 포도알세균 분자 동정
성원진,김단일,김은경,고대성,노영혜,김재홍,권혁준,Seong, Won-Jin,Kim, Danil,Kim, Eun-Kyung,Ko, Dae-Sung,Ro, Younghye,Kim, Jae-Hong,Kwon, Hyuk-Joon 대한수의학회 2018 大韓獸醫學會誌 Vol.58 No.1
Bovine mastitis (BM) has resulted in enormous economic loss in the dairy industry and coagulase-negative staphylococci (CNS) have caused subclinical BM. Although VITEK 2 GP ID card (VITEK 2) has been used for CNS identification, the probability of identification varies. The rpoB sequence typing (RSTing) method has been used for molecular diagnosis and epidemiology of bacterial infections. In this study, we undertook RSTing of CNS and compared the results with those of VITEK2 and 16S rRNA gene sequencing. As compared VITEK2, the molecular-based methods were more reliable for species identification; moreover, RSTing provided more molecular epidemiological information than that from 16S rRNA gene sequencing.
성원진 ( Sung Won-jin ),심기훈 ( Shim Ki-hoon ),최지훈 ( Choi Ji-hoon ),이용학 ( Lee Yong-hak ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.1
The double composite box girder which is a structural system filled with concrete at the bottom of the steel box in the negative moment region increases the flexural capacity of the box girder. The presence of concrete in the box girder reduces the flexural normal stresses in the lower steel flange and thereby, influences the effective width in both the lower and upper flanges. The analytical calculation results based on the theory of elasticity are compared with FEM analysis results and show a good agreement. Numerical results reveal that the lower part concrete takes a role to replace the diaphragms and the effective width of lower flange increases due to the fact that the increasing concreat thickness results in reducing the shear strain.