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To explore the protection and molecular mechanism of histone deacetylase inhibitors (HDACIs) on the spleen of rats with hemorrhagic shock.A total of 60 SPF male SD rats were selected for the modeling of severe hemorrhagic shock using the method of arterial and venous cannulation with the time-divided bleeding. The measurement of mean arterial blood pressure and blood lactic acid was used to verify...
Based on the theory of fuzzy neural network and hierarchical intelligent control, establish system architecture of freeway multi-ramp control, put forward coordination control algorithm of multi-ramp, provide a systemic solution method to realize multi-ramp intelligent control. This method is relatively simple and easy to expand, simultaneity independent on specific freeway mathematical models, possess...
Consider the parametric excitation, studied the characteristics of fifth nonlinear duffing chaotic system. By applying geometric theory of dynamical systems, bifurcation theory and infinitesimal calculus, obtain the homoclinic orbit of fifth duffing equation. Using Melnikov method determines the initial chaotic condition of system and perturbation equation. By means of numerical calculation and computer...
Defining equivalent people group to describe the non-motorized vehicles' and pedestrians' effect on motor vehicles, traffic flow priority of urban road unsignalized T-intersection was ranked renewedly, and it was divided into five grades. Then based on gap acceptance theory, potential capacity models of each subordinate traffic flow were established. By means of probability theory, the adjustment...
Aims at the complex and dynamic nature of traffic flow in mountain expressway tunnel, through the analysis of change characteristics of traffic flow, based on BP network improve the existing expressway traffic flow model, this thesis puts forward the Elman dynamic neural network model of traffic flow predicting in mountain expressway tunnel. In practice, this model has the strong operational, we adopt...
To ensure main road traffic flow running smoothly, traffic volume condition for left-turn forbidden was analyzed. Defining equivalent people group to describe the non-motorized vehicles' and pedestrians' effect on vehicles, traffic flow priority of urban road unsignalized T-intersection was ranked renewedly, it was divided into five grades. Based on gap acceptance theory, potential capacity calculation...
Aims at the issue of passenger turnover structure, based on Markov theory building the multi-product alternative forecast model, obtained the future passenger turnover structure under the stable state trend of transportation development. In practice this method has the strong feasibility, through the prediction of the passenger turnover this thesis could provide a viable research ideas for the harmonious...
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