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High speed forms of transportation as airplane, maglev, and low-earth-orbit satellite, arising great demand of high dynamic communication, which reveals the insufficiency of channel estimation without reliable doppler compensation. This paper proposes to use energy sorting to eliminate small component in time domain channel estimation, and adopt doppler shift to further revised the channel parameter...
This work investigated the antimicroorganism activities of ZnO, TiO2, MgO and SiO2 nanoparticles suspensions at different pH values. In this work, E. coli was used as model bacteria to test the antimicroorganism activities of these nanoparticles suspensions. Growth curves investigation with and without these nanoparticles suspensions was used to examine the antimicroorganism activities. The results...
The effects of various inorganic anions (SO42-, NO3-, H2PO4-, HCO3-, CO32-, F-, Cl-, Br- and I-) on the photocatalytic degradation of phenol were investigated under UV light irradiation. In present work, low initial pH value in the presence of H2PO4- increased the photocatalytic degradation efficiency of TiO2, high initial pH value in the presence of HCO3-, CO32- and F- decreased the photocatalytic...
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