특수일사계를 이용한 맑은 날 일사량의 온도 보정

조일성(Zo Il-Sung),정명재(Jeong Myeong-Jae),이규태(Lee Kyu-Tae),지준범(Jee Joon-Bum),김부요(Kim Bu-Yo) 한국태양에너지학회 2015 한국태양에너지학회 논문집 Vol.35 No.1

Pyranometer have many uncertainty factors (sensitivity function, thermal offset, other spectral effect, geometric, environment, and equipment etc.) than pyrheliometer. The solution for most of the uncertainty factors have been researched, but the problem for thermal offset is being continued research so far. Under the clear sky, due to the thermal offset of pyranometer, the diffuse and global radiation have been negative value for the nighttime and lower value for the daytime, respectively. In order to understand the uncertainty of the thermal offset effect, solar radiation are observed and analyzed using Ji and Tsay method and date from modified pyranometer. As a result of performing temperature correction using the modified pyranometer, the slope (dome factor; k) and intercept (r0) from a linear regression method are 0.064 and 3.457 g·m<SUP>-2</SUP>·k<SUP>-1</SUP>, respectively. And the solar radiation is decreased significantly due to the effect of thermal offset during nighttime. The solar radiation from modified pyranometer increased approximately 8% higher than its observed by general pyranometer during daytime. By the way, these results and did not generalize because its result is for only single case in clear sky. Accordingly, it is to required for accurate results-obtained by the various cases (clear, cloudy and rainy) with longterm observations.

폐암조직에서 중성자 방사화 분석법을 이용한 미량 원소 분석

임상무(Sang Moo Lim),조재일(Jae Il Zo),심영목(Young Mog Shim),정영주(Young Ju Chung),조승연(Seung Yeon Cho),정용삼(Yong Sam Chung) 대한핵의학회 1993 핵의학 분자영상 Vol.27 No.1

N/A Trace elements are important components in the biological system, as a structural material and metabolic controller. Neutron activation analysis (NAA) with high neutron flux and high energy resolution Ge (Li) detector coupled to multichannel analyzer (MCA) has been one of the most accurate method for the determination of ultra-trace level components, and is applicable to biological material. In human body, the NAA can be used for quantitation of trace elements in various organs and tissue with endocrinological and metabolic disease and industrial metal poisoning. In this study, Triga Mark III nuclear reactor in Korea Atomic Research Institute was used for quantitation of trace element in human lung cancer tissues by neutron activation analysis. In the squamous cell carcinoma tissues, Br, Hg, La, Sb, Sc, C1, Fe and I content were lower than normal lung tissues, and K, Rb and Se content were higher. In the adenocarcinoma tissues, Fe, Au, La, Sc and Zn content were lower than normal lung tissues, and Rb, Co and Se content were higher. Rb content was higher in the adenocarcinoma tissues than in the squamous cell carcinoma tissues. Fe and Na content were higher in the squamous cell carcinoma tissues than in the adenocarcinoma tissues.

대량의 하부장관 출혈을 유발한 혈관 이형성증 1 예

송인성,김용태,정현채,김용일,최규완,이건욱,이효석,김정룡,정영화,박재형,윤용범,양석균,안준석,조주희 대한내과학회 1989 대한내과학회지 Vol.36 No.2

In Korea, angiodysplasia has not been reported until now. We experienced a patient with angiodysplasia in acute massive lower gastrointestinal bleeding. A 62-year-old male patient was admitted to the hospital because of hematochezia. No abnormality was found on gastrofiberscopy, colon barium study, and colonoscopy, but anemia persisted despite transfusion. By selective angiography, multiple tortuous vascular tangles were identified in the cecal area in the later arterial phase. Awareness of angiodysplasia in acute massive lower gastrointestinal beding is needed.

Diagnostic Performance of 18F-Fluorodeoxyglucose Positron Emission Tomography/CT for Chronic Empyema-Associated Malignancy

Miju Cheon,유장,Seung Hyup Hyun,이경수,Hojoong Kim,김진국,Jae Il Zo,Young Mog Shim,Joon Young Choi 대한영상의학회 2019 Korean Journal of Radiology Vol.20 No.8

Objective: The purpose of this study was to evaluate the diagnostic performance of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) for chronic empyema-associated malignancy (CEAM). Materials and Methods: We retrospectively reviewed the 18F-FDG PET/CT images of 33 patients with chronic empyema, and analyzed the following findings: 1) shape of the empyema cavity, 2) presence of fistula, 3) maximum standardized uptake value (SUV) of the empyema cavity, 4) uptake pattern of the empyema cavity, 5) presence of a protruding soft tissue mass within the empyema cavity, and 6) involvement of adjacent structures. Final diagnosis was determined based on histopathology or clinical follow-up for at least 6 months. The abovementioned findings were compared between the 18F-FDG PET/CT images of CEAM and chronic empyema. A receiver operating characteristic (ROC) analysis was also performed. Results: Six lesions were histopathologically proven as malignant; there were three cases of diffuse large B-cell lymphoma, two of squamous cell carcinoma, and one of poorly differentiated carcinoma. Maximum SUV within the empyema cavity (p < 0.001) presence of a protruding soft tissue mass (p = 0.002), and involvement of the adjacent structures (p < 0.001) were significantly different between the CEAM and chronic empyema images. The maximum SUV exhibited the highest diagnostic performance, with the highest specificity (96.3%, 26/27), positive predictive value (85.7%, 6/7), and accuracy (97.0%, 32/33) among all criteria. On ROC analysis, the area under the curve of maximum SUV was 0.994. Conclusion: 18F-FDG PET/CT can be useful for diagnosing CEAM in patients with chronic empyema. The maximum SUV within the empyema cavity is the most accurate 18F-FDG PET/CT diagnostic criterion for CEAM.

서울지역의 고해상도 수치표고모델기반 태양 에너지 산출

지준범(Joon-Bum Jee),장민(Min Jang),민재식(Jae-Sik Min),조일성(Il-Sung Zo),김부요(Bu-Yo Kim),이규태(Kyu-Tae Lee) 한국기상학회 2017 대기 Vol.27 No.3

전폐세척술로 치료한 폐포단백증 1례 : A CASE REPORT

김용현,김석균,김영환,이진오,강태웅,조재일,심영목,조경자,장자준,조대순 대한의학협회 1989 대한의학협회지 Vol.32 No.8

점액양 연골 육종 1례의 세침 흡인 세포학적 소견

명나혜,조경자,장자준,조재일,심영목,Myong, Na-Hye,Cho, Kyung-Ja,Jang, Ja-June,Zo, Jae-Il,Shim, Young-Mog The Korean Society for Cytopathology 1990 대한세포병리학회지 Vol.1 No.2

70세 여자의 늑막에 발생한 점액양 연골육종의 세침흡인세포학적 소견을 기술하였다. 환자는 4개월간의 좌측 흉통과 2개월간의 호흡곤란을 호소하였고 흉부 X-선 및 전산화 단층촬영상 좌측 늑막강에 위치하여 흉벽을 침범하는 커다란 분엽상 저음영성 종괴와 늑막 삼출액이 관찰되었다. 종괴의 세침 흡인 도말은 세포 밀도가 매우 높았고, 세포질이 풍부한 나원형 세포들이 점액성 물질내에 산재되거나 간혹 뭉쳐 있었다. 풍부한 세포질은 불투명한 청색으로 소포를 함유하기도 하였으며 그 경계는 흩어진 세포에서는 비교적 분명했으나 세포집단에서는 불분명하였다. 핵들은 한쪽으로 치우쳐져 둥글거나 난원형을 보였고 염색질은 미세하였으며 다수의 작은 핵소체를 갖고 있었다. 세포들간의 다형성이나 유사분열은 잘 관찰되지 않았다. 이상의 소견은 연공육종의 세포학적 특징과 유사했으나 연골 성분이 관찰되지 않았고 점액성 물질이 매우 풍부하여 확진을 위한 생검이 시행되었고 조직학적으로 점액양 연골육종임이 확인되었다. A 70-year-old female who was diagnosed as myxoid chondrosarcoma by fine needle aspiration of a pleural mass is described. She presented with left chest discomfort of 4 months' duration and aggravating dyspnea and chest pain for 2 months. Chest X-ray and CT scan revealed a large lobulated low density mass invading chest wall at the left pleural cavity and massive pleural fluid. Fine needle aspiration was done under the impression of mesothelioma or metastatic cancer. The aspirates from the mass were very cellular and composed of isolated or clustered forms of large plump cells. Abundant cytoplasm was blulsh opaque and the margin was rounded in the isolated cells, whereas clustered cells show ill-defined ceil borders and aggregating tendency. The nuclei were eccentric, round to ovoid, and had fine chromatin pattern and multiple small nucleoli. Cellular pleomorphism or mitotic figure was not definite. These findings were consistent with cytologic features of chondrosarcoma. Final diagnosis was confirmed as myxoid chondrosarcoma by mediastinoscopic biopsy and the tumor showed strong positivity for S-100 protein.

Metastasis Within the Stomach From Esophageal Cancer After Surgery: Computed Tomography Findings in 6 Patients

Kim, Hyae Young,Lee, Jong Seok,Chae, Eun Jin,Lee, Geon Kook,Kim, Moon Soo,Zo, Jae-il Lippincott Williams Wilkins, Inc. 2009 Journal of computer assisted tomography Vol.33 No.1

PURPOSE:: We describe clinical and computed tomography (CT) features of intrathoracic stomach tube metastasis from esophageal cancer after surgical resection found on follow-up chest CT scans. METHODS:: Medical records and postoperative CT scans were reviewed in 6 patients who had a confirmed intrathoracic stomach tube metastasis after esophageal cancer operation. RESULTS:: All patients died 1 to 13 months (mean [SD], 5.8 [4.9] months) after the diagnosis of stomach metastasis. Computed tomography scans revealed eccentric stomach wall thickening with abnormal enhancement (n = 3) or an intramural mass with apparent intact mucosa (n = 3). Eccentric wall thickening with abnormal enhancement was located in the upper portion of the stomach tube (n = 3), and intramural mass in the lower (n = 3) with reference to the carina level. Mediastinal lymph node (9 and 10 mm, respectively) was noted in 2 patients. CONCLUSIONS:: The patients with stomach metastasis from esophageal cancer had poor prognosis. During postoperative evaluation of patients with surgically resected esophageal cancer, stomach metastasis from esophageal cancer seemed as an eccentric wall thickening with abnormal enhancement or an intramural tumor with apparent intact mucosa on CT.

폐에 발생한 원발성 악성 섬유성 조직구종 1 예

조경자,김영환,장자준,이진오,강태웅,조재일,심영목,은진호,조희준 대한내과학회 1990 대한내과학회지 Vol.39 No.3

Since its early description by O' Brien and Staut in 1964 as a distinct form of sarcoma, malignant fibrous histiocytoma is the most common disease of a pleomorphic sarcoma occurring in the deep-seated soft tissue of late-life adults. The histiogenesis of malignant fibrous histiocytoma has been considered to be of histiocytic origin or primitive mesenchymal cell origin. This tumor involves principally the extremities, abdominal cavity, and retroperitoneum and usually metastasizes to the lung and lymphnodes, but primary lung lesion is extremely rare. The reported prognosis in patients with primary lung lesion is very poor, but early surgical resection does offer the possibility of cure. We report a case of primary malignant histiocytoma of the lung, confirmed pathologically by operation, along with a review of the literature.

Endoscopic Cryotherapy of Lung and Bronchial Tumors: A Systematic Review

( Seon Heui Lee ),( Won Jung Choi ),( Sook Whan Sung ),( Young Kyoon Kim ),( Chi Hong Kim ),( Jae Il Zo ),( Kwang Joo Park ) 대한내과학회 2011 The Korean Journal of Internal Medicine Vol.26 No.2

Background/Aims: We made a systematic review and evaluation of endoscopic cryotherapy of endobronchial tumors, investigating safety and efficacy. Methods: Qualified studies regarding endoscopic cryotherapy of lung tumors were systemically evaluated using available databases according to predefined criteria. Results: In total, 16 publications were included in the final assessment. A narrative synthesis was performed because a formal meta-analysis was not viable due to the lack of controlled studies and study heterogeneity. Overall success rates for significant recanalization of the obstruction were approximately 80%, although they varied, depending on disease status in the patient population. Complications from the procedure developed in 0-11.1% of cases, most of which were minor and controlled by conservative management. Although limited data were available on comprehensive functional assessment, some studies showed that respiratory symptoms, pulmonary function tests, and performance status were significantly improved. Conclusions: Endoscopic cryotherapy was found to be a safe and useful procedure in the management of endobronchial tumors although its efficacy and appropriate indications have yet to be determined in well-designed controlled studies. (Korean J Intern Med 2011;26:137-144 )