http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
GIS(Geographic Information System)를 이용한 광역 지질재해(산사태) 분석 연구
김윤종 ( Youn Jong Kim ),김원영 ( Won Young Kim ),유일현 ( Il Hyon Yu ),박수홍 ( Su Hong Park ),백종화 ( Jong Hak Baek ),이현우 ( Hyun Woo Lee ) 大韓遠隔探査學會 1991 大韓遠隔探査學會誌 Vol.7 No.2
A geologic hazard map has been produced in the suburbs of Seoul using GIS technology to analyse the degree of geologic hazard, particularly landslides. Topographic, geologic and soil data were incorporated in a map through GIS, which enable to interpret, analyse and predict the regional geologic hazards. Potential elements causing a landslide are slope geometry, geology, groundwater table, soil property, rainfall and vegetation etc. These elements analysed in the study area were input into GIS system through cartographic simulation to produce the regional geologic hazard map. For this work, ARC/INFO(GIS) and ERDAS(IP) system were used.
김윤종 ( Youn Jong Kim ),김원영 ( Won Young Kim ),유일현 ( Il Hyon Yu ),백종학 ( Jong Hak Baek ),이현우 ( Hyun Woo Lee ),류중희 ( Joong Hi Ryu ) 大韓遠隔探査學會 1990 大韓遠隔探査學會誌 Vol.6 No.2
Solid and hazardous waste disposal site selection by using GIS(Geographic Information System) is the purpose of this study. The criteria of site selection are usually defined in accordance with geological, cultural and social characteristics. Unadequate adaptation of these criteria in a site selection may cause serious problem of water and soil pollution. The environmental information for extraction of these criteria consist of a lot of data: geology, geomorphology, hydrogeology, engineering geology, cultural and social information…. GIS could be easily applied to construct of this environmental information data base, and carry out cartography simulation using overlay mapping technique(polygon overlay). ARC/INFO(GIS system) was used for these studies, and AML(ARC/INFO Macro Language) in this system provided more variable and effective methods for cartography simulation. TM(Thematic Mapper) images were used for the evaluation of land cover/use in the studied area, by using ERDAS image processing system.
혈역학적으로 안정된 폐색전증 환자에서의 임상적 악화를 예측하는 전산화 단층촬영상 소견
정상구 ( Sang Ku Jung ),김원영 ( Won Young Kim ),이충욱 ( Choong Wook Lee ),서동우 ( Dong Woo Seo ),이윤선 ( Youn Sun Lee ),이재호 ( Jae Ho Lee ),오범진 ( Bum Jin Oh ),김원 ( Won Kim ),임경수 ( Kyoung Soo Lim ),홍상범 ( Sang Bum 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.3
Background: The purpose of this study was to determine the prognostic significance of chest computed tomographic (CT) parameters in acute submassive pulmonary embolism (PE). Methods: Between January 2006 and December 2009, 268 consecutive patients with acute submassive PE that was confirmed by chest CT with pulmonary angiography in emergency room were studied. One experienced radiologist measured CT parameters and judged the presence of right ventricular dysfunction. CT parameters were analyzed to determine their ability to predict a major adverse event (MAE). Results: There were 220 patients included and 61 (27.7%) had MAE. Left ventricular and right ventricular maximum minor axis (36.4±8.0 vs. 41.7±7.4, p<0.01; 45.7±9.4 vs. 41.5±7.6, p<0.01), superior vena cava diameter (19.2±3.4 vs. 18.0±3.4, p=0.02), azygos vein diameter (10.0±2.2 vs. 9.2±2.3, p=0.02), septal displacement (19 vs. 18, p<0.01) were significantly higher in MAE group than in no MAE group. Patients with MAE had high right ventricular/left ventricular dimension ratio (RV/LV ratio) compared to patients without MAE (1.34±0.48 vs. 1.03±0.28, p<0.01). The most useful cut-off value of RV/LV ratio for MAE was 1.3 and the area under the curve was 0.71 (0.62∼0.79). Conclusion: RV/LV ratio on chest CT was a significant predictor of submassive PE related shock, intubation, in-hospital mortality, thrombolysis, thrombectomy within 30 days.
신종 플루 폐렴으로 입원한 환자들에서 주요 합병증 발생과 관련된 인자
최상식 ( Sang Sik Choi ),김원영 ( Won Young Kim ),김성한 ( Sung Han Kim ),홍상범 ( Sang Bum Hong ),임채만 ( Chae Man Lim ),고윤석 ( Youn Suck Koh ),김원 ( Won Kim ),임경수 ( Kyung Su Lim ) 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.68 No.3
Background: To date, there are few data on the risk factors for severe cases and deaths associated with the 2009 pandemic H1N1 influenza A. Here, we describe the clinical and epidemiologic characteristics of patients hospitalized for pneumonia and identify those factors associated with the development of major complications (MC). Methods: We reviewed the medical records of 41 cases of pneumonia admitted to a university-affiliated tertiary hospital between Aug 26 and Dec 10, 2009, and who had confirmed H1N1 influenza A based on real-time reverse transcriptase-polymerase-chain-reaction assay. There were 7,962 patients that fit these criteria. We compared the clinical features and demographic characteristics of patients who developed MC to with those who did not develop MC. Results: During the study period, 10 patients developed MC (required admission to the intensive care unit, n=10; required ventilator therapy, n=6; death, n=4). Patients with MC were significantly older than those without MC and more frequently had underlying medical conditions (90.0% vs 41.9%, p-value <0.01). In the patients with developed MC, the median PaO2/FiO2 ratio of 230.0 (145.0∼347.3) at admission and pneumonia severity index (PSI) score of 141.5 (88.3∼158.5) were higher than patients without MC. However, no differences were observed in laboratory findings or in viral shedding between the 2 groups. Conclusion: In hospitalized pneumonia patients of 2009 H1N1 influenza, old age, a history of malignancy, initial hypoxemia, PaO2/FiO2 ratio, and PSI score appear to be risk factor significantly related to developing MC. These findings might be the basis to influence strategies for admitting patients to an intensive or intermediate care unit and for pre-emptive antiviral therapy.
2009 H1N1 인플루엔자 폐렴에서 Procalcitonin의 유용성: 세균성 폐렴과의 감별 역할
안신 ( Shin Ahn ),김원영 ( Won Young Kim ),윤지영 ( Ji Young Yoon ),손창환 ( Chang Hwan Sohn ),서동우 ( Dong Woo Seo ),김성한 ( Sung Han Kim ),홍상범 ( Sang Bum Hong ),임채만 ( Chae Man Lim ),고윤석 ( Youn Suck Koh ),김원 ( Won 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.68 No.4
Background: Procalcitonin is a well known marker in infection that plays a role in distinguishing between bacterial and viral infections in screening. The aim of the present study was to evaluate the role of procalcitonin in differentiating between 2009 H1N1 influenza pneumonia and community acquired pneumonia of bacterial origin, or mixed bacterial origin and 2009 H1N1 influenza infection. Methods: A retrospective observational study was performed over the 6-month winter period during the 2009 H1N1 influenza pandemic. Ninety-six patient-subjects were enrolled, all of whom had been diagnosed with community acquired pneumonia in emergency department during the study period. On admission, laboratory studies were performed, which included 2009 H1N1 influenza real-time polymerase chain reaction of nasal secretions and procalcitonin on serum; the laboratory values were compared between the study groups. Receiver operating characteristic curve analyses were performed on the resulting data. Results: Compared to those with bacterial or mixed infections (n=62) and bacterial pneumonia with confirmed organisms (n=30), patients with 2009 H1N1 pneumonia (n=34) were significantly more likely to have low procalcitonin levels (p=0.008, 0.001). Using cutoff of value >0.3 ng/mL, the sensitivity and specificity of procalcitonin for detection of patients with confirmed bacterial pneumonia were 76.2% and 60.6%, respectively. A significant difference in procalcitonin was found between 2009 H1N1 pneumonia and pneumonia caused by mixed influenza viral and bacterial infections (0.15 [0.05∼0.84] vs. 10.3 [0.05∼22.87] ng/mL, p=0.045). Conclusion: Serum procalcitonin measurement may assist in the discrimination between pneumonia of bacterial and of 2009 H1N1 influenza origin. High values of procalcitonin suggest that bacterial infection or mixed infection of bacteria and 2009 H1N1 influenza is more likely.