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Microbe-assisted phytoremediation provides an effective approach to clean up heavy metal-contaminated soils. However, severe drought may affect the function of microbes in arid/semi-arid areas. Streptomyces pactum Act12 is a drought-tolerant soil actinomycete strain isolated from an extreme environment on the Qinghai-Tibet Plateau, China. In this study, pot(More)
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t In this study, the authors develop a hybrid Laplace transform finite(More)
The hydraulic relationship between the stream and aquifer can be altered from hydraulic connection to disconnection when the pumping rate exceeds the maximum seepage flux of the streambed. This study proposes to quantitatively analyze the physical processes of stream-aquifer systems from connection to disconnection. A free water table equation is adopted to(More)
Globally, alum sludge is an easily, locally and largely available by-product from water treatment plants where aluminium sulphate is used as the coagulant for raw water purification. Owing to the high content of Al ions (29.7±13.3% dry weight) in alum sludge and the strong affinity of Al ions to adsorb various pollutants especially phosphorus (P), alum(More)
B-spline surface skinning is widely used in geometric modeling. However, the traditional method may introduce wiggles in the final surface when the sectional curves are non-parallel. An algorithm for skinning non-parallel sectional curves is proposed in this paper to avoid wiggles. Firstly, the input curves are divided into multiple groups automatically,(More)
Missing features often occurs in both streamline placement and streamline selection. To solve this problem, a feature-based approach to streamline selection that can guarantee the preservation of the integrity of flow field features is presented in this paper. The streamline feature type is defined based on the relationship between streamlines and flow(More)