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The mathematic models were established to study the distribution of the flow field and movement rule of the smoke in a transport aircraft cabin with environment control system when fires broke out. Based on the interaction of forced convection and natural convection, this article simulated and analyzed the changes of temperature fields and concentration fields of combustion product in initial stages...
According to characteristics of coal mine goaf, a suitable routing mechanism based on LEACH protocol was proposed. The mechanism's improvement including two sides: Firstly, LEACH cluster heads selection mechanism was improved. Secondly a routing algorithm of wireless sensor network was designed with the multi-path routing mechanism. Finally, the NS2 simulation result show that this new routing mechanism...
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