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김성재,Kim, Seong-Jae 대한출판문화협회 1999 출판저널 Vol.250 No.-
영상시대, 책에도 사진저작물의 이용이 늘어나면서 저작권 문제가 새로운 쟁점으로 떠올랐다. (본지 제231호 참조) 출판사들은 사진저작물의 이용 한계와 범위에 대해 정확히 모른 채 제작을 해온 것도 사실이다. 이 글에서 필자는 "본문과 필연성이 인정되는" 인용의 경우, 별도로 저작권자의 허락을 받지 않아도 사진저작물으 이용이 가능하다고 해석하고 있다. 이같은 해석은 저작권 문제에 새로운 논쟁의 단초가 될 수 있다. 많은 관심을 바란다.
실트펜스와 식생밭두렁 적용을 통한 밭 비점오염 저감효과 분석을 위한 포장실험 연구
김성재,박태양,김성민,장정렬,김상민,Kim, Sung-Jae,Park, Tae-Yang,Kim, Sung-Min,Jang, Jeong-Ryeol,Kim, Sang-Min 한국농공학회 2012 한국농공학회논문집 Vol.54 No.4
The objective of this study was to test the pollutant reduction effect by the silt fence and vegetated ridge through field monitoring. The experiment plots were established with two replication and three treatments. Each plot was designed with 5 m width, 22 m length, and 3 % slope. Flumes with the floating type stage gages were installed at the outlet of each plot to monitor the runoff. For a rainfall monitoring, tipping bucket rain gage was installed within the experiment site. Cultivated crops were spring daikon and autumn chinese cabbage. Analysis of variance (ANOVA) indicated that the water quality concentration from three experiment plots were not significantly different in 5 % of significant level. The monitoring results showed that the average pollution loads reduced by silt fence compared to control were SS 75.33 %, TN 40.87 %, TP 56.58 %, BOD 52.12 %, COD 36.07 %, TOC 34.99 %; by vegetated ridge compard to control were SS 65.27 %, TN 81.80 %, TP 54.26 %, BOD 67.09 %, COD 46.55 %, TOC 43.30 %. Analysis of Spearman's rank correlation coefficient showed that BOD-SS and SS-Turbidity were highly related at the silt fence and vegetated ridge plots. In all plots, SS-Turbidity and TP-TN relations were relatively high. The monitoring results showed that the silt fence and vegetated ridge were effect method to reduce the pollutant loads from the field runoff. Long-term monitoring is required to obtain more quantitative reduction effect for diverse crops and to increase the reliability of results.
다출력 공진형 컨버터의 변압기 누설 인덕턴스를 고려한 특성 분석
김성재,김종수 대한전기학회 2020 전기학회논문지 Vol.69 No.3
This paper presents analysis and experimental results of cross-regulation characteristics in multi-output LLC resonant converter focus on transformer leakage inductance. The detail leakage inductance is extracted using the multi-winding transformer equivalent model, and the effects of leakage inductance on the cross-regulation characteristics under two load conditions are investigated. The analytical results are verified through an experiment results using 240W 4-output LLC resonant converter. Furthermore, the solution for reducing the cross-regulation error is discussed.
마이토마이신 씨를 이용한 공막절개술로 치료한 단순소안구성포도막삼출 1예
김성재,김규남,한용섭,정인영,서성욱,유지명,박종문,Seong Jae Kim,Gyu Nam Kim,Yong Seop Han,In Young Chung,Seong Wook Seo,Ji Myong Yoo,Jong Moon Park 대한안과학회 2012 대한안과학회지 Vol.53 No.8
Purpose: To report the case of a 36-year-old patient with nanophthalmic uveal effusion was treated with scleral window surgery and topical administration of mitomycin C (MMC). Case summary: A 36-year-old woman presented with decreased visual acuity and blurred vision in the both eyes during 3 months. Fundus examination revealed choroidal effusion and retinal detachment with thickend sclera wall and short axial lengh. Partial-thickness sclera flap with deep sclerostomy was performed and topical MMC was administered to one quadrant of the equatorial sclera. The subretinal fluid resorbed gradually and visual acuity improved. Conclusions: Scleral window surgery and topical mitomycin C might relieve the blocked transscleral outflow of intraocular fluid in the small area of a sclerostomy in young patient with nanophthlamos. J Korean Ophthalmol Soc 2012;53(8):1157-1162