Applied Mechanics and Materials Vols. 380-384

Abstract: Hypothesis testing is one of the most important aspects in statistic inference. In this paper, we consider the SMS package problem of hypothesis testing. Firstly, we establish a mathematical model for SMS package problem. Secondly, we use the knowledge of Poisson distribution, parameter estimation and hypothesis testing to analyze this model, and the research results have proved the validity of the method.

Abstract: Web mining algorithms are widely used in e-commerce. Tourism e-commerce develops fast in recent years in China but the application of web mining algorithms stays in low level compared with some developed countries. This paper first discusses two major web mining algorithms: the Association Rules algorithm and Clustering Analysis, and then analyzes the application of web mining algorithm in tourism e-commerce. It concludes that web mining algorithms can help tourism e-commerce to improve web design, increase online sales and provide better personalized services for web users.

Abstract: With the enhancement of safety factor in civil aviation, simulation technology has been paid more and more attention and got comprehensive application. We describe the application of simulation technology in the field of civil aviation security, such as runway generation, terrain reproduction, data import and export, and flight path computing and so on. We propose a method for computing flight path in simulation and reconstruction, and analyze the solving process in detail. We perform the calculation results of the simulation reproduction with CEFA software and Google earth.

Abstract: The paper researches the parametric inversion of the two-dimensional convection-diffusion equation by means of best perturbation method, draw a Numerical Solution for such inverse problem. It is shown by numerical simulations that the method is feasible and effective.

Abstract: FRC technology mainly uses the visual inertia of human eyes which can be regarded as persistence of vision phenomenon by sequential frames. It is especially important to make the 6 bit panel display abundant colors. The paper has deeply researched some possible stripes of the FRC algorithm caused by fixed pattern. A novel stripe removable algorithm has been brought up. It can effectively avoid the horizontal, vertical or diagonal stripe by displaying different temporal and spatial patterns. Various experiments show that the novel algorithm can display high resolution image in the lowly variety devices.

Abstract: This paper proposed a remaining useful life prediction model to avoid the original monitoring information due to the influence of the oil monitoring linear regression process, thereby reducing the prediction error. According to the process of equipment wear, we analyzed the impact of the relationship between the wear, the metal particle concentration and the remaining useful life; then established an improved filter model. Using maximum likelihood parameter to estimate model parameters. Finally, taking a certain type of self-propelled Gun Engine Oil Spectrum Data for example, and the results show that the remaining useful life prediction model of equipment has a certain practical value.

Abstract: Through the differential evolution algorithm, the transient source two-dimensional source item inverse problem in the wide/shallow watercourse is converted into the optimal control problem of the distribution system. Concrete steps that utilize differential evolution algorithm are given to carry out example analysis. The result show that the method could be used for the study of pollution sources identification .

Abstract: Removed due to low scientific quality.

Abstract: With the application of adaptive genetic algorithm to the training of multi-layer RBF networks and the optimization of the hidden layer centers and width values and using regularized least squares method, weight vectors is obtained. Computer simulation shows that the precision of real function approximation by this algorithm is much higher than the precision by clustering algorithm for multi-layer RBF networks.

Abstract: For the route planning problem of cruise missile, a method based on PSO is proposed and simulated. The route cost model is established which in-tegrates the terrain cost, the threating cost and the stratagem obviation cost. With the model, digital maps and battlefield information can be transformed to the grid space for route planning. For the premature defect in the standard PSO algorithm, a method based on similarity variation is proposed for route planning. Simulation results show that the searching effect of the improved algorithm is better than which of the standard algorithm in route planning, the improved algorithm can get better route.