http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
성동욱 대한영상의학회 1990 대한영상의학회지 Vol.26 No.6
Angiolipoma is a rare benign soft tissue tumor, an unusual variant of lipoma, consisting of fatty and vascular components. The tumor is histologically benign and may be capsulated or locally invasive. They are located in the subcutis, usually in the lower extremity and trunk. Authors experienced a case of mediastinal angiolipoma in a 9-year-old girl. Chest roentgenogram revealed a huge soft tissue mass on left lower neck and entire left superior mediastinum. CT disclosed areas of low density mass intermixed with irregular foci of higher density. The mass extended to inferior mediastinum, and contralateral side through the retrocardiac space. The bulk of the mediastinal mass was resected but recurred over a period of three years.
성동욱 대한영상의학회 1983 대한영상의학회지 Vol.19 No.2
Castleman's diseas (Giant lymph node hyperplasis) is a pathologic entity of unknown etiology, as attested to by the number of names it has recevied, lymphoid hamartoma, angiomatous hamartoma, and giant lymph node, etc. Although the mediastinum is its most common location, it also occurs in other areas of the body, usually where lymph nodes are normally found. Authors have been experienced 2 cases of histologically proven Castleman's disease during recent 3 years in Kyung Hee University Hospital, and present its radiological and pathological findings as mediastinal mass.
성동욱,여준석,황석호 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.36 No.-
Poly(methyl methacrylate-co-phenyl methacrylate) (PMPA) was blended with polycarbonate (PC) toameliorate the poor scratch resistance of pure PC. The miscibility of the PC/PMPA blends was analyzed bydynamic-mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC) and opticalmeasurements. These results indicated that PC/PMPA blends are miscible at all of the compositions usedin this study. Also, quantitative analysis of their miscibility was performed by using classical glasstransitiontemperature (Tg)-composition models (Fox equation and Gordon-Taylor equation). The PMPAeffect on the tensile properties and scratch resistance of PC/PMPA blends were investigated. Withincreasing PMPA content, the scratch resistance of the blends was found to increase, whereas othertensile properties such as tensile strength and tensile modulus did not change due to the good miscibilitybetween PC and PMPA.
성동욱,황석호,여준석 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
현재 친환경 소재 적용에 관한 정책적인 요구로 인하여 기존의 석유기반 material을 대체하기 위해서 자연계에서 유래한 material로써 Cellulose, Lignin에 관련한 연구가 활발하게 진행되고 있다. 본 연구에서는 Polypropylene(PP)과 silane modified Cellulose/Lignin mixture를 사용하여 기계적 물성의 증대를 목표로 하였고, 물성이 증대되는 지점에서 최적의 Cellulose/Lignin 비율을 관찰하기 위한 목적으로 melt blending을 실시하였다. 이후 SEM-EDX를 통해 복합체 표면을 관찰하였고, 함량비 변화에 따른 기계적 물성을 UTM을 통해 관찰하였으며, DSC, TGA를 통해 열적 특성을 관찰하였다.
성동욱 대한영상의학회 1991 대한영상의학회지 Vol.27 No.3
Spontaneous pneumothorax is a rare manifestation of lung cancer. Eight cases of pneumothorax found in 1648 patients with lung cancer from 1979-1990 are reported. Histopathologic types of cancer were adenocarcinoma in three cases, squamous cell carcinoma in two cases, bronchioloalveolar carcinoma in two cases, and metastatic renal cell carcinoma in one case. The promary tumor mass was not found even after thoracotomy in two cases. Spontaneous pneumothorax occurred on the ipsilateral side fo the cancer. All the patients were more than 40 years old with a history of smoking 1-2 packs a day for 20 to 50 years, and had chronic lung diseases. The authors emphasize that bronchogenic carinoma may be one of the causes of spontaneous pheumothorax in appropriate clinical settings.
폐동맥 색전증의 방사선학적-조직병리학적 소견에 관한 실험적 연구
성동욱 대한영상의학회 1997 대한영상의학회지 Vol.37 No.6
Purpose:To evaluate the low attenuation of mosaic pattern in pulmonary embolism, as observed on HRCT, and to correlate the findings with the pathologic features of resected lung. Materials and Methods:Using permanent embolic materials, pulmonary embolism was induced in eight Yorkshire pigs. Pre-and post-embolic pulmonary angiography was performed and after 6 weeks, the incidence and pattern of parenchymal change in low attenuation(mosaic pattern), as seen on HRCT, was evaluated. The animals were then sacrified and contact radiography of the lung was performed. Thirty-eight segments of pathology were taken feom the area in which the presence of embolism had been suggested. Pathologic and HRCT findings were then correlated. Results:On HRCT, low attenuation was seen in 23 of 36 segments(64%) and showed variable patterns;crescent peripheral hyperlucency(61%, n=14), heterogeneous mottled hyperlucency(17%, n=4), lobular hyperlucency(13%, n=3), and homogeneous segmental hyperlucency(9%, n=2). Parenchymal low attenuation was seen on HRCT in 10 of 11 segments (91%) in which large segmenta arterial occlusion occurred, and in 3 of 16 segments (19%) in which there was small segmental arterial occlusion. Abnormal pathologic findings were pulomary congestion, dilatation of pulmonary arteries, interlobular septal thickening, and thrombus formation. Among the 38 pathologic segmental sepcimens, 29 were from the area in which HRCT findings were positive, and in which pulmonary embolism subsequently occurred. In only four of nine segments (44%) in the area in which HRCT findings were negative ws pulmonary embolism subsequently. Conclusion:HRCT findings of pulmonary embolism at six weeks after embolization showed variable patterns of low attenuation, diminished diametr of pulmonary arteries, and normal diameter of bronchi. In cases with large segmental arterial occlusion, the finding of low attenuation was more common;this may be due to reduced blood flow to the embolic area, in combination wih bronchiolar spasm. For the early diagnosis of pulmonary embolism these findings may be useful.
중간 기관지 후벽과 기관 분지 하부의 진단을 위한 단순 흉부촬영 측면 사진의 판독
성동욱 대한영상의학회 1996 대한영상의학회지 Vol.35 No.2
A lateral chest radiograph is frequently useful and sometimes decisive in detecting chest pathology. Certainparts, such as the posterior wall of the bronchus intermedius (PWBI) and subcarinal regions, can be evaluated onlyon lateral chest radiograph. The authors present and emphasize the findings of PWBI and subcarinal abnormalities.Abnormal PWBI, more than 3 mm thick, is seen in cases of minor degree of oblique position, pulmonary edema, inflammation, neoplasm and enlarged lymph nodes. It can also be seen in patients with subcarinal mass. Thefindings of subcarinal mass on lateral view are ill-defined increased opacity, fullness of the inferior hilarregion, doughnut sign, extra-density and thickening of the PWBI. Detection of changes in the PWBI and subcarinalregion may be the only diagnostic evidence of hilar and subcarinal disease and helps in its early detection priorto computed tomography.