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김백운,박용안,오임상,김부근,최경식,Kim, Baeck-Oon,Park, Yong-Ahn,Oh, Im-Sang,Khim, Boo-Keun,Choi, Kyung-Sik 한국해양학회 1998 바다 Vol.3 No.4
본 연구는 비측량용 사진기를 이용한 근거리 사진측정법을 적용하여 해빈단면을 추정하는 방법을 제시한다. 수평면 위에 고정된 비디오로부터 획득한 경사비디오영상을 해석하는 방법을 기초로 다음 두 가지 관점을 고려하여 경사사진 해석에 적합한 방정식을 유도하였다. (1) 사진기가 광축에 대하여 회전되는 것을 허용하였다. (2) 정확도를 향상시키기 위하여 렌즈왜곡을 비롯한 사진 계통상의 오차를 보정하는 단순한 오차모형을 도입하였다. 수정된 방정식을 검증하기 위하여 1998년 2월에 동해시 해빈에서 사진촬영과 정밀한 수준측량을 수행하였다. 그 결과 근거리 사진측정을 통한 해빈단면 추정값과 실제 측량값 사이의 수직거리에 대한 RMS 오차는 10 cm 이내였다. This study presents a close-range photogrammetry that is applicable to beach profile estimation using a non-metric camera. Based on the analysis of oblique video image in which the video camera was installed on a horizontal plane and the field of view was fixed, a new equation to analyze a photograph was developed considering the following aspects: (1) camera is allowed to be rotated about its optical axis and (2) a simple error model is adopted to correct lens distortion and other systematic errors associated with the non-metric camera, which improves accuracy of non-metric imageries. To test the modified technique, photographs of the beach were taken near the Donghae City in February, 1998. In addition, beach profiles were surveyed with conventional dumpy level and surveying staff. RMS error between the estimated and measured beach profiles is less than 10 cm in elevation.
우상호,김용안,권수완,김양범,윤승희,신기용,정은,고두민,김대용,Woo, Sang-Ho,Kim, Yong Ahn,Kwon, Soo Whan,Kim, Yang Beom,Youn, Soong Hee,Shin, Ki Yong,Jung, Eun,Go, Du-Min,Kim, Dae-Yong 대한수의학회 2017 大韓獸醫學會誌 Vol.57 No.4
Two Whooper swan (Cygnus cygnus) died after suffering from pododermatitis, lethargy, and ataxia; necropsy was performed. Grossly, the liver was swollen and firm. The kidney and spleen were also enlarged and a pale tan color. On histopathologic examination with Congo red staining, amyloidosis was noted in liver, spleen, and kidney. In addition, marked osseous metaplasia was present in the liver. Based on these results, systemic amyloidosis involving liver, spleen, and kidney with osseous metaplasia in the liver was diagnosed. Study results indicate that an inflammatory reaction associated with pododermatitis had a role in the amyloidosis in this particular case.
냉간성형 각형 CFT 기둥-보 수직유공판 앵커형 접합부의 인장내력식 제안
이광호(Lee Kwang-Ho),이인호(Lee In-Ho),원용안(Won Yong-Ahn),김강수(Kim Kang-Soo),최성모(Choi Sung-Mo) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
A objective of this study is to suggest a type reinforcing a lower part of column to beam connections with an internal anchors to be considered a higher ability of construction and filling up concrete. A suggested shapes are a concrete filled tubular(CFT) column reinforcing plate with internal anchors and improves economy efficiency. In order to solve problem which lower part of connections have, its feature is that internal diaphragm welded has several internal anchors in plate. Thus if concrete is filling and it passes and fills up internal anchors, concrete passed ones reinforce composite effect of internal diaphragm and concrete by role such as nails. In order to analyse the initial strength, maximum internal force and mechanic performance, it compares with and analyses structural performance of internal diaphragm with several anchors through a test conducting an identified and simplified CFT column to beam flange and we propose tension design formulas.