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Ikeda  Y.  Yasuda  R.  Nakaminami  H.  Tanaka  M.  Lee  C.  Higashino  H. 《Water, air, and soil pollution》2001,130(1-4):265-270
The economical development and increasing population of China and other East Asian countries is expected to be accompanied by an increase in the emission of air pollutants. The objective of this study is to develop an effective and economical emission control strategy for sulfur in East Asia. There are existing methods for controlling sulfur emission, such as changing to lower sulfur content fuel, introducing desulfurization devices for emission sources, and promoting efficient energy use. The applicability of such measures is restricted by both energy supply and control cost, amongst other concerns. As a case study, an optimal control strategy based on the estimated sulfur emission for China in 2010, is simulated using a Mixed-Integer Linear Programming technique with several restrictions that satisfies, among other constraints, the atmospheric environment requirements for SO2 and the soil load limit for SO4 deposition.  相似文献   
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Background –  Topical therapy, particularly with chlorhexidine, is becoming increasingly common as a treatment option for canine pyoderma; however, there are limited studies on the susceptibility of Staphylococcus pseudintermedius to chlorhexidine compounds. Objectives –  To determine the in vitro susceptibility of both meticillin‐resistant and meticillin‐susceptible S. pseudintermedius isolates to chlorhexidine and other antiseptic agents and the presence of multidrug efflux pump genes. Samples –  One hundred S. pseudintermedius isolates from 23 initial and 77 recurrent cases of canine pyoderma. Methods –  After bacterial identification and mecA testing, minimal inhibitory concentrations (MICs) of antiseptic agents were determined. Multidrug efflux pump genes, including qacA, qacB and smr, were identified. Results –  Of the 100 isolates, 57 were identified as meticillin‐resistant S. pseudintermedius. The MIC90 of chlorhexidine acetate, chlorhexidine gluconate, acriflavine, ethidium bromide and benzalkonium chloride were 1, 1, 2, 0.5 and 2 μg/mL, respectively. Multidrug efflux pump genes qacA, qacB and smr were not detected in any of the isolates. Conclusions and clinical importance –  The MICs for chlorhexidine and other antiseptics remain low, and multidrug efflux pump genes were not found in the tested isolates.  相似文献   
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