Applied Mechanics and Materials Vols. 543-547

Abstract: Mesh simplification should not only emphasize high compression ratio, but also maximize retention of a mesh representation which is another objective of mesh compression. In one of our 3D projects, in order to pursue the optimization model display, we proposed a new mesh simplification algorithm. This article describes the algorithm based on energy-aware which used to simplify a mesh of 3D model. Our approach has two major contributions. Firstly, we used an optimization method based on energy-aware, which seeks to collect low energy value vertexes of a mesh. Vertex energy is calculated by an energy function that describes the potential energy between the vertex and its directly related vertexes in a space. Secondly, our optimization method transforms a mesh into a series of triangle stripes, and reduces low energy vertexes of those stripes effectively. The process of compression is simple, efficient and adjustable for users. From the result of experiments, we can learn that our algorithm is suitable for processing several kinds of grid, and retains the characterization from original mesh very well. Our approach solved the problem of obvious distortions of a simplified mesh of 3D model, and significantly improved the efficiency of simplification process.

Abstract: For two-dimensional XYX quantum model, iPEPS algorithm can select randomly initial state evolution, and get two degenerate symmetric broken ground state wave functions. In the quantum model, not only bifurcation behavior of ground state fidelity can be used, but bifurcation behavior of reduced density matrix fidelity can also be used to determine the phase transition point and its type caused by spontaneous broken symmetry of quantum of the system. Therefore, spontaneous symmetry breaking based on fidelity bifurcation can determine quantum phase transition one quantum system had gone through. This nature provides a method to further study quantum critical phenomena in quantum multibody system

Abstract: An adjacent vertex distinguishing incidence coloring of graph of G is an incidence coloring of G such that no pair of adjacent vertices meets the same set of colors. We obtain the adjacent vertex distinguishing incidence chromatic number of the Cartesian product of triangular lattice and infinite path, and hexagonal lattice and infinite path.

Abstract: The problem constructed here is the convergence of bivariate trigonometric interpolation sequences, the approximation and computation would be optimal for a body of functions. Therefore some conclusions became a special cased of the results of present paper.

Abstract: [Purpos] The use of passive observation station to achieve precise location of an emitter is the precondition of electronic countermeasures and fire destruction in the modern information war. [Method] This paper dissects several modern typical location methods which are based on LOB. On this basis, the paper puts forward fusion-iteration location algorithm, and makes Monte Carlo simulated experiment to compare with Pages-Zamora method which is used by FCC and probabilistic location method. [Results] Experimental results show that CEP of fusion-iteration location algorithm is the minimum one. [Conclusions] Pages-Zamora method is a typical location method and fusion-iteration location algorithm shows higher precision than Pages-Zamora, so fusion-iteration algorithm is an effective passive location method.

Abstract: By analyzing the space-based information support and basic process of aviation in missile assault to surface under the C4ISR system, the parameters for the operation model are set and aviation in missile assault to surface war model under space-based information support is proposed by using signed digraph method. Finally, this paper analyzes this signed digraph model by using the qualitative theory of nonlinear differential equation, which effectively shows the information support function of space-based information in aviation in missile assault to surface.

Abstract: This paper analyzes the relationship between firing way and firing command way. Using the theory of probability and air defense combat strategy, it describes the concept, characteristics, and its mutual relations between concentration, dispersion, and mixing command in shooting mode, analyzes the influence of different ways of command on group firing efficiency.

Abstract: This paper studies the solution to combat aircrafts path planning problem in confrontational battle space. First of all, according to the dynamic movement characteristics of emergent threats, a path planning target function model is built based on dynamic threat; then based on the defects of basic genetic algorithm, a kind of improved genetic algorithm based on predatory search strategies is further designed; finally the model and the algorithm are tested effective by simulation verification.

Abstract: For the premature convergence and initial pheromone distribution problem of the basic ACO algorithm, PSO algorithm and chaos optimizing strategy are introduced into the ant colony algorithm in order to propose a novel collaborative optimization (CPACO) algorithm based on the collaboration theory. The first, the CPACO algorithm divides the ant colony into several subgroups, and the parameters of the subgroup are regarded as the particles. Then these advantages of PSO algorithm and chaos optimization strategy are fully utilized to optimize these parameters of the ACO algorithm in order to obtain the optimal values of these parameters. And the pheromone exchange operation is introduced into the subgroup. In order to validate the performance of the CPACO algorithm, the TSP problems are selected in here. The simulation results show that the proposed CPACO algorithm has better optimization performance than the traditional ACO algorithm.

Abstract: This paper introduces the system structure of computer statistical perspective virtual simulation, and establishes an application database using parameter modification and optimization method. Then, a complex computer fluid solid coupling simulation model is established by using ANSYS software, and the mining results of computer streamline 3D data is obtained by the establishment of the fluid and solid domains data interface. At the same time, the computer virtual simulation system of statistical perspective is applied to the process of handball players training index data mining, and we will get the analysis curve of computer training resistance data mining. Finally, we establish the handball training intensity parameter storage library, to provide the technical reference for the handball athletes.