In this paper,by discussing the basic hypotheses about the continuous orbit and discrete orbit in two research directions of the background medium theory for celestial body motion,the concrete equation forms and their summary of the theoretic frame of celestial body motion are introduced.

In this paper, we first discuss transition probability and hitting time of the simple random walk on the fractal SG(2,3), and combined with branch processes theory, We construct a Feller process X on SG (2, 3), and prove that the semigroup of X is symmetric respect to some radon measure, and the sample paths are holder contlnuous with the order log3/log(17)in probabllity one.

Based on the no-preemptive priority queuing network model and infinitesimal perturbation analysis theory,the partition schemes of sample paths are proposed.

The multifractal analysis of sample paths of Brownian sheet W={W(s 1,s 2):s 1,s 2≥0} is discussed.

Dynamic analysis of a coupled system of a monorail train of straddle type and a continuous track beam

According to the design experiences of Jiaoxin Line of Chongqing City, this paper gives a detailed introduction of the straddle-type single-track continuous track beam, including how to choose the design and construct project, how to do the final design, discusses some practical measures for the linetype control of continuous beam design.