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The ammonium sulfate ((NH₄)₂SO₄) seed aerosols commonly found in the Chinese urban atmosphere could affect the formation and aging of secondary organic aerosols (SOA). Aging of aromatic SOA is performed using UV-irradiation of 1,3,5-trimethylbenzene (135-TMB)/CH₃ONO/NO/air mixtures with high concentrations (~100 μg/m³) of (NH₄)₂SO₄ seeds in the laboratory chamber in this study. The particulate products...
A four terminal Gaussian network composed of a source, a destination, an eavesdropper and a jammer relay is investigated when the jammer relay is causally given the source message. The source aims to increase the achievable secrecy rates, whereas the jammer relay aims to decrease it. To help the eavesdropper and to decrease achievable perfect secrecy rates, the jammer relay can use pure relaying and/or...
Currently, detecting potential threats in air passenger baggage heavily depends on the human examination of X-ray images of individual luggage items. In order to improve the performance of airport security personnel in searching images of air passenger luggage it is important first to understand fully the requirements of the demanding task. Here, an experiment is reported where eye movements of naive...
Both oxidatively and malondialdehyde modified low density lipoprotein (Ox-LDL and MDA-LDL) could be recognized by the scavenger receptor and induce intracellular cholesteryl ester accumulation of macrophage. The cholesteryl ester accumulation caused by MDA-LDL could be largely cleared by high density lipoprotein (HDL 3 ), but that caused by Ox-LDL could not be. Further studies showed that...
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