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Some revision of the compressor characteristics and the turbine sections has been made to accommodate the increased pressure ratio, the increased airflow and the moisture and heat addition in the saturator. Based on the HAT gas turbine, the part load performance of HAT cycle has been gained.

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In this paper,about the body of a special ultra-heavy semitrailer without beam,its model is built in ProE sofeware and its static analysis and modal analysis,which is in static state ,constant speed traction state and braking state, are performed in Ansys software.Displacement distribution,stress distrbution,the first five inherence frequencies and vibration modals are educed.

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But educational culture and state system chain social work education to a conservative, traditional spoon-fed education, and have led to the alienation of faculty-student relationship.

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The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

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In a recent Urbana gathering thirty percent of the attendees were Asians--slightly more Koreans than Chinese.

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The method to determine the limited temperature for dry/wet running conditions was presented. Multi-object frame optimization model were developed. Combined with the thermal and hydraulic correlations for dry/wet conditions of plate wet air cooler, the optimization model can be used to optimize the dry/wet limited temperature and frame parameters.

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The result of stress analysis shows that temperature load induced remarkable thermal stress, and under pressure and temperature load, the distribution of the stress depend on the thermal stress. The most dangerous casse is not the steady operating case, but the transient case at the moment that the shell-side fluid is just shut down, but tube side pressure load and thermal load still retain.

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