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排序方式: 共有175条查询结果,搜索用时 171 毫秒
171.
Willemien Anaf Benjamin Horemans Teresa I. Madeira M. Luisa Carvalho Karolien De Wael René Van Grieken 《Environmental science and pollution research international》2013,20(3):1849-1857
In the 1970s, a large ambulatory of the National Tile Museum, Lisbon, was closed with glass panes on both ground and first floor. Although this design was meant to protect the museum collection from ambient air pollutants, small openings between the glass panes remain, creating a semi-enclosed corridor. The effects of the glass panes on the indoor air quality were evaluated in a comparative study by monitoring the airborne particle concentration and the extent of particle deposition at the enclosed corridor as well as inside the museum building. Comparison of the indoor/outdoor ratio of airborne particle concentration demonstrated a high natural ventilation rate in the enclosed corridor as well as inside the museum building. PM10 deposition velocities on vertical surfaces were estimated in the order of 3?×?10?4 m s?1 for both indoor locations. Also, the deposition rates of dark-coloured and black particles in specific were very similar at both indoor locations, causing visual degradation. The effectiveness of the glass panes in protecting the museum collection is discussed. 相似文献
172.
This work presents a study of industrially applicable techniques to obtain a biologically supported carbon dioxide capture system, based on the extraction of carbonic anhydrase from bovine blood. Carbonic anhydrase is a metalloenzyme which catalyzes the reversible hydration of carbon dioxide. The objective of this study was to establish conditions to obtain carbonic anhydrase from bovine erythrocytes and apply it in the capture of carbon dioxide. To achieve this, two different purification techniques were evaluated: one by extraction with the organic solvents chloroform and ethanol, where different solvent proportions were studied; and the other by ammonium sulfate precipitation, testing percent saturations between 10% and 80%. Carbon dioxide was enzymatically captured by its precipitation as calcium carbonate with the enzyme obtained by both techniques. The enzyme extracted by ethanol and chloroform showed an activity of 2623 U mL−1, recovery of 98% and purification factor of 104-fold. That precipitated by ammonium sulfate showed an activity of 2162 U mL−1, recovery of 66% and purification factor of 1.4-fold using 60% ammonium sulfate saturation. The results obtained in the carbon dioxide capture experiments showed that the carbonic anhydrase extracted in this study not only enhanced the hydration of CO2, but also promoted the formation of CaCO3. 相似文献
173.
174.
Caly Luisa F. Rodríguez Diana C. Peñuela Gustavo A. 《Environmental science and pollution research international》2022,29(35):52775-52787
Environmental Science and Pollution Research - Anthropogenic pollution and global climate change have resulted in favorable environmental conditions for increased frequency and duration of... 相似文献
175.
Khannyra Souad Gil Maria Luisa Almoraima Addou Mohammed Mosquera Maria Jesus 《Environmental science and pollution research international》2022,29(42):63126-63126
Environmental Science and Pollution Research - 相似文献