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The secondary electron emission characteristics of the space metal material are the important parameters to determine the surface charge rate and charge balance potential of the spacecraft. And it is also an important basis for material selection, analysis and design of high power microwave components of space vehicle. In order to accurately measure the secondary electron emission characteristics...
In this paper a numerical simulation of metal surface secondary electron emission is performed by considering scattering models. Based on the scattering models of corresponding electron energy, the characteristics involving with secondary electron emission yield dependence of the incident energy and incident angle, as well as the emitted-energy spectrum are simulated. The simulation results accord...
Radial basis function (RBF) neural network is used to predict the blast furnace hot metal based on its characteristics such as fast convergence and global optimization. As hot metal silicon content had close relationship with furnace temperature, the change of temperature in furnace was reflected indirectly by hot metal silicon content. Newrbe function in Matlab was applied for function approximation...
Human erythrocyte pyridoxal phosphatase has an essential requirement for divalent cations. Its activation by Mg 2+ , Co 2+ , Ni 2+ , or Mn 2+ followed Michaelis-Menten kinetics. Other divalent cations inhibited the enzyme. The kinetic properties of the enzyme were investigated with pyridoxal phosphate and Mg 2+ alone and in the presence...
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