Advanced Materials Research Vols. 225-226

Abstract: Existing customer equity(CE) measurement models presume that market demand scale is constant and without considering the influence of cross-purchases and propaganda of public praise, which is actually not in line with the market.Therefore,this paper puts forward a new measurement model of CE under the condition of mutative demand market scale.Then further apply this model to study the CE measurement of banking industry.Study results show that this model can make more accurate measurement of CE and is operable, so it can guide practice more effectively.

Abstract: This article formulates and studies a model of Hybrid Impulsive and Switching Stochastic Systems (HISSS). Using integral Inequality、Ito Isometry、The Gronwall Inequality、Doob’s martingale Inequality and Borel-Cantelli Lemma, we has got a existing and unique result for HISSS. On the other hand, to the best of author’s knowledge, date up to now, seldom stability result has been arrived for HISSS. In order to fill this gap, p—moment asymptotic stability and p—moment exponential stability are considered. Some theorems on p—moment asymptotic stability and p—moment exponential stability of HISSS are established by using Lyapunov-Krasovskii function and stochastic analysis theory.

Abstract: Propose a new image processing method which named Color Field Structure (CFS). The direction of CFS represents the information. Take advantage of the feature that the energy of the image would gather and spread on four components (LL₂, LH₂, HL₂ and HH₂) in the sub-image after first-order CARDBAL2 multi-wavelet transform. Propose an Information Hiding Algorithm based on modifying the direction of CFS in four CARDBAL2 first-order sub-images. The maximum change of direction angle is usually less than π/2^k. The information is divided into two parts, one part is embedded in LL₂ and HH₂, and the other part is embedded in LH₂ and HL₂. Use the Logistic chaotic map, Knight's Tour traversal and the genetic algorithm to improve the consistence of the embedded data bits’ order and the character of the sub-image. Experimental results indicate that the proposed scheme can increase invisibility and robustness separately by 28.64% and 23.06% averagely, and has certain ability against steganalysis such as Higher Order Statistics based on wavelet coefficients. Moreover, the scheme has excellent sensitivity of image processing.

Abstract: The EM iterative algorithm is a very general and popular algorithm that commonly used for missing data to find maximum likelihood in recent years, which has the character of stability,flexibility and simlicity.However, the EM algorithm has a great weakness that the convergence speed is slowly; Acceleration of the EM algorithm using the Vector-ε method is proposed in order to solve this problem in this paper.In Multi-user Detection, via this accelerated algorithm, we get a good performance which trends to ML performance and improving the computational efficiency, and compared its speed of convergence with the EM algorithm that Vector-ε acceleration algorithm has faster convergence than the standard EM algorithm.

Abstract: The EM iterative algorithm is commonly used in recent years for missing data, which has the character of easy and popular applicability. But the EM algorithm has a fatal weakness that the convergence speed is slowly; Acceleration of the EM algorithm using the Aitken method is proposed in order to solve this problem.In Multi-user Detection, via this accelerated algorithm, we get a good performance which trends to ML performance, and compared its speed of convergence with the EM algorithm that Aitken-acceleration algorithm has faster convergence than the standard EM algorithm, and we also illustrate the performance of simulation.

Abstract: This article is based on marching hydraulic pressure excavator, determine the manipulator and the mechanical arm’s plan through these movement in the actual situation request. Then the artical establish the robot mechanical arm and manipulator's simplified model on the two-dimensional blueprint, and according to design proposal preliminary establish rough plan, after finishing sketch design, we establish and assembly components model by PRO/E in the actual situation request, then we will have it stress analysised through ANSYS after making sure that there is no movement interference to guarantee the sizes of each part satisfy the request.

Abstract: Idealy, an interferogram is an even function of the path differences; it suffices to computer the cosine Fourier transform of the interferogram from the zero optical path to the max to produce the spectrum. However, the interferogram is always asymmetry of the scanning function in reality. A method for the phase correction of interferograms in Fourier transform is presented. It is shown that phase error can be canceled to within an arbitrary angular precision by phase correction method. Three original spectrums are provided in which phase correction over a frequency range of 400nm to 1000nm ,they are shown that using Phase Correction Method resulted in a error is less than those of the Mertz Method, and the purchased time is much less than the Mertz Method. The method can be used in most experiments, including emission spectroscopy, where conventional techniques are inadequate.

Abstract: In order to increase the production quality and efficiency of the battery grid, the new type of continuous casting machine is designed in this article. First the structure of the continuous casting machine is introduced, namely drum, shoe and clamp mechanism. Then, the drum is designed whose peripheral surface is machined the battery grid pattern machined ,in which the liquid circulation system is disposed to maintain its stable temperature. Finally the shoe is introduced which has an arcuate surface, and it is maintained in pressure-mating engagement with the outer peripheral surface of drum by the clamp mechanism The successful design of continuous casting machine will significantly increase the production efficiency and quality of battery grid.

Abstract: In the Collaborative Virtual Environments (CVE), there is a conflict between maintaining the state consistency and supporting more users sharing the virtual environment. A self-adaptive message filtering algorithm based on consistency QoS is proposed to improve both the consistency and scalability. Each user in the virtual environment has active workspace, influence area and dormancy zone according to the different requirement of consistency QoS. Time-space bounding sphere is defined to predict user’s active workspace to provide high consistency QoS. When two users’ time-space bounding spheres overlap, the key updates of two users are sent to each other in time to keep the state consistency. A self-adaptive threshold function model is used when two users’ influence areas overlap, which makes a tradeoff between consistency and scalability and provides a medium consistency QoS. Heart-beat packets are sent when two users’ dormancy zones overlap to filter messages in order to reduce the system traffic since the low consistency QoS is required. The results of traffic test and consistency QoS test in the experiment show that our algorithm can maintain the state consistency and reduce the consumption of network resources simultaneously.

Abstract: In this paper a novel web service composition approach based on improved genetic algorithm is proposed. Firstly the relative vector is defined to represented the input and output parameters of user requirements and web services, by comparing the relative vectors, a composed service can be evaluated how much it match user requirements, thus the web service composition is transferred as a linear programming problem. Secondly an improved genetic algorithm is used to search optimum composite services. Compared with the existing approaches, this method supports dynamic service composition, bears component services with multiple input & output parameters, and enables inclusion of parallel and choice structure inside the composite services.