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The cationic polymer/bentonite nanocomposite adsorption materials were prepared by cationic polymer-epicholorohydrin-dimethylamine (EPI-DMA) and dimethyldlammonium (PDMDAAC) as intercalary reagents, respectively; then the adsorption performance for p-chlorophenol (p-CP) were discussed. The results indicated that the adsorption ability of cationic polymer/bentonites for p-CP increased with the increase...
We evaluated the innovation efficiency of different regions in China by using DEA method, and analyzed its convergence. Our conclusions include innovation efficiency differs among regions, and the innovation efficiency of the central and western regions is higher than that of the eastern region. There is conditional convergence in the whole country and all regions, but there is no absolute convergence...
Grid resource management plays an important role while enabling the sharing and coordinating of resources in grid computing environments. Resource reservation is an important part of the grid resource management. An advance reservation is a scheduling object which reserves a group of resources for a particular timeframe for access only by a specified entity or group of entities. Combining resource...
A major challenge facing grid applications is the appropriate handling of failures. Data replication is a key technique of data grid, from which, we can get better access performance. It is a fault-tolerant approach, but at the same time bringing some hidden trouble for security, so security and fault-tolerance should be colligated to research. Combining data replication with security, we propose...
In order to evaluate impact of port development on regional economy, this paper adopted fuzzy comprehensive evaluation, a combination of qualitative and quantitative methods, and established an evaluation index system which includes four main criteria: total economic output, industrial structure, relevant industries and environment. The findings reveal both positive and negative impacts of port development...
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