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Based on compound cementitious system of clinker containing C4A3 S¯ phase, ground fly ash, and granulated blast-furnace slag, a new kind of cement, the Bittern-resisting Cement, is studied for high-bittern environment in the northwest of China. This new material uses class □ fly ash as raw material to produce BRC clinker containing C3S and C4A3 S¯ phase, and class □ fly ash as high-activity...
With the quick development in the application design of sensor networks, appropriate middleware, which provides efficient service for concurrent applications taking account into the scarce resources and sensor energy, is needed, which provides efficient service for concurrent applications taking account into the scarce resources and sensor energy. In this paper, we propose a novel message oriented...
In order to solve security of data transmission in wireless network, a secure communication method based on chaotic synchronization is presented. By designing nonlinear state observer, two chaotic systems are constructed and kept synchronized, realizing the complete recovery of the encrypted signal; the stability of the synchronized system is being analyzed at the same time. Simulation results show...
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