Subjects: Civil Engineering and Building Construction >> Civil Construction Engineering submitted time 2017-12-21 Cooperative journals: 《土木建筑工程信息技术》
Abstract： This paper establishes an ideal model using CFD software by taking the dominant wind direction and speed as the initial condition in Xiamen to simulate the pollutant diffusion range of garbage transfer station. The results shows that the concentration of the odor pollutant was greater than the allowable value in the regional range of sixty meters，which is seen as a basis to guide the general layout. Through establishing an actual model and simulate calculation considering the sensitive building around the garbage transfer station，the result shows that，under the domain wind direction of the summer and winter，some sensitive buildings would be easily polluted，but with small pollutant concentration meeting the regulatory requirements. However, under the static wind of summer, the pollutant concentration of the residential buildings in the northwest and southwest directions would become over the standard requirements，and technical measures should be adopted to reduce the pollutant production of the garbage transfer station. After the adoption，the pollutant concentration of the residential buildings in the northwest and southwest reduces significantly，and meets the regulatory requirements.
Subjects: Medicine, Pharmacy >> Preclinical Medicine submitted time 2017-12-07 Cooperative journals: 《南方医科大学学报》
Abstract： Objective To investigate the value of detecting thyroid transcription factor 1 (TTF-1) and Noval aspartic proteinase of pepsin family A (napsin A) in pleural fluid cell blocks in cytopathologic diagnosis of pulmonary adenocarcinoma. Methods Conventional cell smears of pleural effusions were obtained from 48 patients with a history of lung adenocarcinoma for cytological analysis. The cell blocks were prepared using the cytological specimens and examined with immunohistochemistry for TTF-1 and napsin A. The rates of a positive diagnosis of pulmonary adenocarcinoma were compared between the two methods, and the diagnositic value of TTF-1 and napsin A in pleural fluid cell blocks was evaluated. Results Immuno- histochemistry of the cell block sections yielded a significantly higher positive rate of diagnosis than cytological analysis of conventional cell smear (84.44% vs 55.56%, P<0.05). Most of the pleural fluid cell blocks showed positive expressions of TTF-1 (36/38, 94.74%) and napsin A (30/38, 78.95%), and none of samples showed TTF-1 or napsin A expression in the mesothelial cells (P<0.05). The combination detection of TTF-1 and napsin A in pleural fluid cell blocks had a high diagnosis value with a diagnostic sensitivity of 97.37% and a specificity of 100% for pulmonary adenocarcinoma. Conclusions The combined detection of TTF-1 and napsin Ain pleural fluid cell blocks facilitates cytopathologic diagnosis of pulmonary adenocarcinoma.
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