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犬의 toxoplasma gondii 感染에 대한 血淸學적 調査 硏究
Y.M. Yang(梁倫模),T.J. Kim(金泰鍾),W.C. Lee(李元暢) 한국예방수의학회 1992 예방수의학회지 Vol.16 No.3
This study was carried out to investigate the prevalence of antibody against Toxoplasma gondii in the dog of Kangwon area by Indirect Fluorescent Antibody Test (IFAT). A total of 311 serum samples collected from 162 heads of sentry raising dog and 149 heads of house raising dog were tested. The results obtained were summarized as follows ; 1. Among the serum sample of 311 heads of the dog, 15 samples (4.8%) were positive. 2. Out of the 15 heads showed positive, 5 heads (3.1%) in the sentry dog and 10 heads (6.7%) in the house raising dog were detected positive, respectively. 3. In the sex, 7 heads (4.3%) out of 163 female dogs and 8 heads (5.4%) out of 148 male dogs were positive. However, there was no significant differences between the male and the female. 4. The positive rate of Toxoplasma antibody in dogs raising in Kangwon area appeared to be relatively low.
강인식,곽기석,김도삼,양윤모,Kang, I. S.,Kwak, K. S.,Kim, D. S.,Yang, Y. M. 한국항해항만학회 1994 韓國港灣學會誌 Vol.8 No.2
A theoretical formulation is performed to investigate the wave reflection and transmission ratios by a submerged multi-layered rubble-mound breakwater. This theory, which is based on the linear boundary integral method, can be extended to the multi-layered breakwater with arbitrary cross section. In the theoretical analysis evanescent mode wave is not considered, since fictitious open boundaries are put on the places far from the structure. Therefore the mathematical presentation may be simpler, and computational time shorter. The validity of obtained numerical results is demonstrated by comparing with ones of impermeable and permeable breakwaters. Comparison shows resonable agreement. On the basis of these verifications this theory is applied to the one and two-layered submerged rubble-mound breakwater with trapezoidal type.