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이상용,김대철,나서희,홍숙희,강태훈,이영호,남경진,정진숙,Lee, Sang-Yong,Kim, Dae-Cheol,Rha, Seo-Hee,Hong, Sook-Hee,Kang, Tae-Hun,Lee, Young-Ho,Nam, Kyoung-Jin,Jeong, Jin-Sook 대한세포병리학회 1996 대한세포병리학회지 Vol.7 No.1
Malignant rhabdold tumor is a distinct renal tumor in the pediatric age group. It was originally described as a rhabdomyosarcomatold variant of Wilms' tumor. However, subsequent studies fatted to confirm myogenous differentiation, so it is now considered to be a distinct and unique type of highly malignant tumor, histogenetically unrelated. Although extrarenal forms of this tumor are rare, several examples have been described in other sites, especially the liver, prostate, paravertebral area, urinary bladder and soft tissue. We experienced a case of malignant rhabdiod tumor located in the intraabdominal cavity in a 10 month-old boy. Smear of peritoneal fluid showed round, polygonal and irregular shaped cells with large nuclei, ample cytoplasm containing light pink to purple cytoplasmic inclusions, and one or a few prominent nucleoli. Immunocytochemistry revealed positivity to cytokeratin, epithelial membrane antigen and vimentin, and negativity to desmin and neuron-specific enolase. These distinct cytologic appearance and immunophenotypes were most consistent with a diagnosis of extrarenal malignant rhabdoid tumor. The cytoplasmic inclusions were correlated with eosinophilic inclusions seen in histologic section and electron microscopy confirmed this interpretation, showing filamentous aggregations in the cytoplasms of the tumor cells.
각종 과실류가 (果實類) 백서 (白鼠) 위궤양 (胃潰瘍) 형성에 미치는 경향
이상용,고대진,김종숙 ( Sang Yong Lee,Dae Jin Ko,Chong Sook Kim ) 대한소화기학회 1979 대한소화기학회지 Vol.11 No.1
The present study was undertaken to investigate the ulcerogenic eKect of various fruits in rats. Various fruits incluciing peach, apple, apricot, plum and tomato were administerecl to Sha; rat. \Ve observed gastric v.lcerations ancl deterniinecl the gastric acidity, total protein, rnncoprotein and pepsin concentration of gastric juice Z4 hours after aclrninistration. I'he following results ivere obtained. The ulcer inciex. And volume of gastric group. Juice in friiit groups ivere higher than control The total and free acidity of gastric juice in frit groiips showed Jow valiies in comparision ivith control group. 3. The total protein and nnicoprotein of gastric juice in fruit groups were lower than contro} groups. 4. The pepsin activity of gastric juice in fruit grov.p were also lower than control group.
Al 7075합금의 열간단조와 반응고 단조에 있어서 조직, 성형성 및 경도 특성 비교
이상용,전재일,이정환,이영선,신평우,Lee, Sang-Yong,Jeon, Jae-Il,Lee, Jeong-Hwan,Lee, Yeong-Seon,Sin, Pyeong-U 한국소성가공학회 1998 소성가공 : 한국소성가공학회지 Vol.7 No.6
Conventional hot forging and thixoforging of Al 7075 alloy have been compared with respect to microstructures, formability and hardness. Two distinctive temperature-strain rate ranges for hot forging of Al 7075 alloy were observed from the results of simple compression tests with strain rates of 10-3∼101 sec-1 in the temperatures between $250^{\circ}C$ and $500^{\circ}C.$ In the dynamic recovery range (low temperature-high strain rate range) multi-stage forging was necessary to form a complex shape part due to the lack of formability. In the high temperature-low strain rate range, in which dynamic recrystallization takes place a complex shaped park could be formed by single-stage forging. About 50% cold working in the SIMA process was necessary to get a fine and homogeneous microstructures. Microstructural study suggest that thixoforged Al 7075 part has fine grains and homogeneous microstructures. Its hardness number is almost same to that of conventional hot forged part after aging treatment.
발의 회내 $\cdot$ 회외 변화에 따른 슬개대퇴골각과 종경골각 측정
이상용,김한수,배성수,Lee Sang-yong,Kim Han-soo,Bae Sung-soo 대한물리치료학회 2002 대한물리치료학회지 Vol.14 No.4
An excessive Q-angle has been implicated in the development of knee injuries by altering the lower-extremity locomotion kinematics. The purpose of this study was measured the Q-angle and the CTA when the foot moves pronation and supination of the foot in the standing status. The participants of this examination were 60 adult(30 men and 30 women) who had no orthopaedic and neurological impairment, aged between 20 and 40years. The foot tilt(FT 1)is made of acrylic plate and the slope of the suface is altered as $0^{\circ}$, pronation ($10^{\circ},20^{\circ},30^{\circ}$)and supination($10^{\circ},20^{\circ},30^{\circ}$). The results were as follows : 1. The result about the left/right Q-angle and the left/right CAT There was no statistical significant difference between the left and the right side of the Q-angle with different position of the foot(P > 0.05). While significant difference in the left CTA at the $0^{\circ}$, pronation($10^{\circ},20^{\circ},30^{\circ}$) and supination($10^{\circ},20^{\circ}$) has been observed(P < 0.05). 2. The result about the Q-angle and the CTA between male and female There was significant difference in the Q-angle between male and female with different position of the foot(P < 0.05). while significant different in the right CTA at the $0^{\circ}$ pronation ($20^{\circ}$)(P < 0.05), no significant difference in the left CTA have been observed(P > 0.05). 3. The result about correlation between the left/right Q-angle and the left/right CAT There was statistical significant positive correlation between the left/right Q-angle and the left/right CAT with the different position of the foot(P < 0.01).
이상용,Lee, Sang-Yong 한국지능시스템학회 2003 한국지능시스템학회논문지 Vol.14 No.7
본 논문에서는 다면체의 인식을 위하여 사용되는 여러-방향-보기 방법 (multiple-view approach)에서, ART-1 신경망을 이용하여 모델베이스의 탐색공간 크기를 줄이기 위한 방법을 제안한다. 이 방법에서 모델베이스는 물체를 둘러싸고 있는 보기 구체의 미리 정해진 시점에서 관측된 2차원 투영체에서 추출된 특징들로 구성된다. We suggest a method which reduces the search space of a model-base on multiple-view approach for polyhedral object recognition using the ART-1 neural network. In this approach, the model-base is consisted of extracted features from two-dimensional projections observed at the predetermined viewpoints of a viewing sphere enclosing the object.
3차원 모델 기반의 미적 교각 설계 및 시공 기술 개발
이상용,당고손,심창수,Lee, Sang-Yong,Dong, Ngoc Son,Shim, Chang-Su 한국BIM학회 2015 KIBIM Magazine Vol.5 No.2
Bridge piers typically have circular or rectangular shapes without decorative design. Prefabrication for accelerated construction has been widely adopted in bridge structures. Cost for steel formwork is a main restriction of creative irregular shapes. 3D modelling techniques allow creative design of columns and 3D printing provides possibility to minimize the fabrication cost. In this paper, 3D design process of bridge piers was suggested by converting 2D picture into 3D decorative shape. Formwork design using 3D printed panels was also proposed and mock-up tests were conducted. Precast columns need accurate geometry control from fabrication to assembly. Laser scanning and geometry control devices were adopted. Through the digitalized process of design, fabrication and assembly, creative design of structures can be realized in reasonable cost range.