Applied Mechanics and Materials Vols. 687-691

Abstract: Construction of wave propagation effects assessment simulation system based on GIS, for enhancing the capabilities of our military radio environment awareness, forecasting, warning and assessment of the effect is significant.In this paper, the original geographic data and radio wave propagation data will be unified as vector and raster data into GIS system structure based on ArcObjects components, combined with the development of visual language Visual C++ 6.0, designed and constructed to assess the effect of radio wave propagation simulation system. designed and built a radio wave propagation effects assessment simulation system. The system has data management, scene visualization, effects assessment, graphics output function modules, Achieved wave propagation effects assessment simulation and visualization presentation.

Abstract: In recent years,the development of computer graphics technology and sensing equipment develop rapidly, and the virtual reality simulation technology should be more and more mature real environment. Application of virtual reality technology in the field of sport also becomes more and more widely. Based on the virtual reality technology application in sport and research field, we will discuss the implementation scheme of virtual scene based on virtual reality technology, for sports training and technical analysis to explore new ways and means.

Abstract: Cloud computing system uses new technologies such as the models of shared services and virtualization. Therefore, the security issues of cloud computing are also different with other systems. In order to guarantee the security of information sharing and interaction, we need to study the security of agricultural information sharing platform in depth direction. This paper will study the security protection system of agricultural information platform based on Cloud Computing, and the data security strategy and the service security strategy of agricultural information sharing platform.

Abstract: According to different node data access objects, and based on the idea of behavior-driven development, an interface-oriented node data access tool is designed and implemented. The tool mainly implements an executable node data access tool that is based on MFC, and writes a set of Win32 console application, which improves the node data automation access scripts and encapsulates the module interfaces, thus improving the distributed network data access speed.

Abstract: This paper uses the method of structural equation model to verify relationship trust, self-efficacy and outcome expectations influences effect on knowledge sharing in virtual community. Research results show that relationship trust has a positive impact on knowledge sharing in virtual community; self-efficacy is positively related to knowledge sharing in virtual communities; outcome expectations have positive correlation on the knowledge sharing in virtual community; relationship trust and self-efficacy had positive correlation to the outcome expectations. Finally, according to the empirical results, this paper put forward to promote the incentive mechanism of knowledge sharing in virtual communities, and provide some countermeasures and suggestions for management practice.

Abstract: This paper gives a teaching resources platform that is a comprehensive feature rich, convenient use, strong interactivity based on cloud computing technology. Platform includes various cloud functions and cloud spaces such as identity authentication function, single sign-on function, resources upload/download function, resources collection function, resource integration function, instant communication function, teacher resource cloud space, student resources cloud space, theme resources cloud space, department resources cloud space and schools resources cloud space. Compared with available technology, we can build an no capacity constraints cloud platform for storage and sharing of teaching resources based on the cloud computing technology, this teaching resources cloud platform is an open, interactive public service platform of educational resources.

Abstract: Frequent land-use changes might produce a large amount of historical data which are valuable for data mining and decision-making. Based on the traditional Whole-state-recording Mode, the Special-state-recording Mode was proposed, focusing on the temporal aspect. This mode could optimize the land use database and reduce redundant change record. It could also improve data rollback and historical backtracking functions. The mode was successfully applied to land use planning in Zhejiang Province.

Abstract: RFID can give a unique digital identifier to real physical object, and bridges the physical world with the virtual digital world. Based on the analysis on our experience of RFID applications, some common key issues and requirements of RFID application are presented. A lightweight framework based on Web Service to support ubiquitous RFID application of medicine logistics is designed and implemented. This lightweight framework provides the integration of RFID technology and other holistic applications. Virtual object is used to map the real physical world object and the virtual digital object. Experiment result is given and some future research directions are discussed.

Abstract: In order to achieve the information collection function of the IOT, this paper is based on Embedded-ARM system, develops a terminal node hardware platform that uses S3C2440 as the core, and the hardware platform contains power supply module, processing and storage module, display and operation module, wireless communication module etc. Software platform uses Embedded Linux operating system, we transplant and produce boot loader, device drivers, the root file system, etc. On the platform of embedded system, we add MCU module, MCU module, Barcode scanning module, temperature and humidity module as the main information collection module, to realize the basic function of information collection of the IOT.

Abstract: The paper investigates the Multi-FPGA systems structure, including interconnect and configuration structure of the systems. After analyzing several common FPGA systems interconnection structure, we present its features. The paper analyses the feasibility and technical advantages for FPGA systems to use in digital array radar receiver design, and discusses their specific implementation, and designs a set of IF receiver with twenty reception elements.