Applied Mechanics and Materials Vol. 367

Abstract: Network marketing is developed on the basis of application and development of modern electronic technology and communication technology. Compared with the traditional furniture marketing, it has obvious advantages in several aspects. Furniture enterprises should take a close grasp of this opportunity, enlarge investment in resources of network marketing, make full use of this sort of modernized marketing mode and better serve the business goal of furniture enterprises.

Abstract: As the most important index, the navigation accuracy and reliability is used to measure the performance of FOG vehicle integrated navigation system. In the foundation of federated filter and systematic accident diagnose algorithms, a novel integrated navigation filtering algorithm is designed based on FOG SINS(Fiber Optic Gyroscope Strapdown Inertial Navigation System)、GPS(Global Positioning System)、DR(Dead Reckoning). The simulation results show that the federated filter with failure detection can make full use of information from navigation sensor, and can isolate fault sources effectively, its accuracy and reliability are better than the generalized filters’.

Abstract: A functional analytic method was developed by E.K.Ifantis in 1987 to prove that certain non-linear ordinary differential equations (ODEs) have a unique power series solution which converges absolutely in a specified disc of the complex plane. In this paper, we first applied this method to certain systems of two non-linear ordinary differential equations. We proved that the power series solutions can be determined by some recurrence relations which depend on the parameters of the equations and the initial conditions. Then, we found a method to extend the range of the converge bound. At last, we applied the functional analytic method to the resistant virus infection model to obtain a power series solution and compared our solution with the numerical solution obtained by the Runge-Kutta method using the software Matlab (Version 7.0.1).

Abstract: Agricultural information technology, with the core of wide usage of information and information technology, is the important feature of modern agriculture, and has a strong infiltrating and leading role. The construction of regional agricultural information technology, has a positive meaning to optimize allocation of regional agricultural resources, and form regional agricultural information technology with regional characteristics and full functions. Based on analyzing the status quo of agricultural information technology in Shandong Province, this thesis constructed the regional agricultural information technology system from the view of cluster network, which mainly included agricultural Information technology Network System, Information technology Resources, agricultural expert decision-support system, and agricultural information technology service system. Upon constructing and analyzing these systems, it proposed the policy recommendations for promoting regional agricultural information technology development.

Abstract: Visualization is an efficient technology to display the information and the inherent properties of geographic data, mine the regularity and development trends between the data and give researchers the unexpected insight. As the using and distribution of visualization resources exists imbalance, in order to meet the need of Geography Science, this paper presented a Grid Computing-based High-performance Visualization Environment. This environment is based on the mature grid middleware, CGSP to achieve the Grid integration and sharing of the geo science visualization software. A demonstration application was discussed to verify the visualization environment. The environment would achieve the visualization of the massive geo-spatial data efficiently and expediently, enhance the collaborative research to solve problems and improve their research environment.

Abstract: The characteristics of real-time, synchronization, flexibility and reliability make WorldFIP Fieldbus suitable for locomotive network communication. This article describes the design of locomotive network test platform based on WorldFIP both hardware and software perspective. World FIP station can make date communication by writing applications in LABVIEW environment which verifies the correctness and reliability of the test platform. The design of test platform plays an important role for in-depth understanding of foreign locomotive core technology and lays a solid foundation for accelerating the domestic heavy-haul locomotive and development of products with independent intellectual property rights.

Abstract: With the development of science and technology, more and more advanced technology is applied to the field of education. Technology brings new vitality to the education, the application of VR technology in education have attracted more attention. This paper introduces the virtual reality technology and virtual experiment and introduces two key technology of construction Virtual Laboratory: VRML and JAVA, It Elaborates structure and process of virtual experiment. We expect to provide the basis for future virtual laboratory building.

Abstract: This paper deals with the integrated navigation system based on fusion of data from Strap Down Inertial Navigation System (SDINS) and from Global Position System (GPS). In order to increase the accuracy and reliability of navigation algorithms, these two different systems are combined. The navigation system that be analyzed is basically of INS type while GPS corrective data are obtained less frequently and these are treated as noisy measurements in an extended Kalman filter scheme. The simulation of whole system (SDINS/GPS integrated system with Kalman filter) was modeled using MATLAB package, SIMULINK© tool. The proper choice of Kalman filter parameters had taken to minimize navigation errors for a typical medium range flight scenario (Simulated test trajectory and real trajectory of vehicle motion). A prototype of a SDINS installed on a moving platform in the laboratory to collected data by many experiments to verification our SIMULINK models.

Abstract: A challenging task in wireless sensor network (WSN) is to deliver authentic data between source nodes and sink nodes. The collision or dead lock occurs when two or more close nodes are attempted to send data at the same time to the others node. To avoid such dead lock situation in the network we propose a nonlinear mathematical model. The effect of nonlinearity often renders a periodic solution unstable for certain parametric choices even a very small change in initial conditions can lead to different result in chaotic systems which appears to exhibit chaos for a range of parametric values when long time behavior studied. The local stability conditions for the system have been discussed and analyzed. Numerically simulations have been carried out to study the complex behavior of the system for reasonable ranges of parameters in WSN.

Abstract: This article focuses on research and implementation of a kind of solid storage system that is based on NAND flash which can store the data with high speed and huge capacity. A design with quad 1.25Gsps ADC and flash storage array with 1TB is demonstrated in the paper. The design is applied widely in many fields such as radar, communication and speech recognition. The detail of hardware development is also introduced in the thesis. In addition, a method is discussed to approve the reading and writing bandwidth by parallel operations on multiple pieces of flash. By using the method, the data bandwidth is arrived 6GB/S.