Applied Mechanics and Materials Vols. 602-605

Abstract: Through the study of MANET's QoS multicast routing problem, we propose a heuristic-demand multicast routing algorithm. Algorithm combines the MANET network bandwidth estimation algorithm, redefined the select function, restrictions request packets of flooding algorithm, to ensure fair treatment delay and bandwidth. Simulation results show that the algorithm has the advantage of fewer routing overhead, high success rate.

Abstract: To accurately depict the dynamic characteristics for aircraft stall by aerodynamic model, a Wavelet Neural Network (WNN) stall aerodynamic modeling method based on Particle Swarm Optimization (PSO) algorithm and Artificial Fish Swarm (AFS) algorithm is proposed. Numerical examples show that the proposed method has a good prediction precision, and it is also effective and feasible to build the aerodynamic model from flight data for aircraft stall.

Abstract: In this paper, through comparison and analysis of various wavelet denoising methods, a new threshold function is constructed, and the selection of threshold is improved. Signal denoising simulation is made by the software MATLAB, the results show that the improved method is superior to the traditional method, and obtain a better denoising effect.

Abstract: With the aim to solve the implement problem in scale invariant feature transform (SIFT) algorithm, the theory and the implementation process was analyzed in detail. The characteristics of the SIFT method were analyzed by theory, combined with the explanation of the Rob Hess SIFT source codes. The effect of the SIFT method was validated by matching two different real images. The matching result shows that the features extracted by SIFT method have excellent adaptive and accurate characteristics to image scale, viewpoint change, which are useful for the fields of image recognition, image reconstruction, etc.

Abstract: The incidence coloring of a graph is a mapping from its incidence set to color set in which neighborly incidences are assigned different colors. In this paper, we determined the incidence coloring numbers of some join graphs with paths and paths, cycles, complete graphs, complete bipartite graphs, respectively, and the incidence coloring numbers of some join graphs with complete bipartite graphs and cycles, complete graphs, respectively.

Abstract: The paper improved a task scheduling in cloud computing based on intelligence firefly algorithm. Firstly, the study finds the better solution of cloud computing task scheduling with intelligence firefly algorithm. Then the better solution was turned into the improved firefly algorithm to find the global optimal solution through improved firefly information communications. The Experimental Analysis result suggest the improved algorithm can preferably allocate the resources in cloud computing model, the effect of prediction model time is more close to actual time, can efficiently limit the possibility of falling into local convergence, the optimal solution time of objective function value is shorten.

Abstract: In this paper,based on the AHP analysis, we puts forward a concept of Analytic Hierarchy Process, In order to achieve to determine the index weight more scientifically. And verify the scientific and reasonable of this method by example.

Abstract: According to the problem that there have not any research focuses on building a general crowdsourcing platform that can be serviced any enterprises. This paper have studied the key issues such as the platform framework, operation mode and construction principles and other issues to be considered when building such a special crowdsourcing platform. The crowdsourcing platform that build based on the key issued studied in this paper has greater practical value, which can be used as the communication bridge between crowdsourcers and contractors and service all the enterprises and the community, thus achieving a win-win goal between the crowdsourcers and contractors.

Abstract: To accurately identify the nonlinear model for aircraft, maximum likelihood method is introduced to analyze the flight test data for compatibility check, which can satisfy the kinematics equations of aircraft at the same time. The experiment shows that the proposed method has a good compatibility check effect, and it is also effective and feasible for flight test data for aircraft.

Abstract: As the Wireless Sensor Networks (WSNs) are widely implemented in various fields recent years, the quality of WSNs has been increasingly concerned. WSNs can usually be divided into sub-nets, which assumed to work or fail independently. Through the failure data of those sub-nets, the additive NHPP model for reliability evaluation is composed, and then the maximum likelihood estimation is applied to estimate the unknown parameters in the model. Finally, the simulation shows that the additive NHPP model is better than general NHPP model under certain circumstances.