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Environmental Impact on the KEPCO 765-kV Double Circuit Transmission Line
이동일,신구용,김정부,Lee, D.I,Sin, K.Y,Kim, J.B The Korean Institute of Electrical Engineers 1999 전기학회논문지C Vol.48 No.2
The environmental impact of the KEPCO 765-kV transmission line was studied using a full scale test line in order to develop the design technology. Therefore this paper describes an environmental design summary of the audible noise, hum noise, wind noise, radio interference, TV interference and electric field measurement from the KEPRI 765-kV double circuit transmission test line with a bundle of $6-480mm^2$ conductors per phase. The analysis of the test results shows that 6-Rail and 6-Cardinal conductors bundle satisfy the audible noise criterion & TV interference under the stable rainy weather condition and the radio interference level under the fair weather. And the other items are also agreed with the design level criterion for KEPCO 765-kV transmission line.
간장 및 담도 : 간농양 치유 후 추적 영상진단상 이상 소견을 나타내는 간농양의 조직병리학적소견
이동기(D . K . Lee),김원호(W . H . Kim),한광협(K . H . Han),최흥재(H . J . Choi),박찬일(C .I . Park) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.1
N/A Medical therapy is standard for intrahepatic abscess and generally effective, but frequently radiologically abnormal lesion persist for long time followed by ultrasonography(US) or abnormal C-T, even after successful medical treatment including aspiration and complete clinical recovery. To access the histologic features of medically healed abscess but not disappeared completely in follow-up US or ahdominal C-T we performed liver biopsies in 5 cases of healed liver abscesses. The biopsy specimens were obtained at the margin of the lesions by cutting needle with ultrasono- graphic guiding. The biopsies were performed one time in one patient at variable period after treatment, 4 weeks in 2 cases, 6, 12 weeks & 17 months in each one case. The lobular architecture of the liver was relatively well preserved except the 2 specimens obtained at 4 weeks after treatment. And the specimens within 2 months showed hemorrhagic features rather than inflammatory, such as central hemorrhagic necrosis with extravasation of RBC. The sinusaidal system was dilated slightly. Some fibrosis involving portal tract and parenchyme of the liver was noted in the specimen of 6 weeks and 12 weeks. The specimen obtained at 17 months after treatment showed nearly normal liver architecture except minimal infiltration of lymphocyte in portal tract and parenchyme. Therefore, we concluded that in completely healed liver abscess, enen if abnormal reaiologic lesion persist for long time, the histologic feature of the lesion showed some hemorrhagic necrosis and infiltration of chronic inflammatory cells.