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This paper presents a configuration scheme of multiple MEMS reaction wheels for CubeSat. In this configuration three pairs of arrays of MEMS reaction wheels are installed symmetrically within the CubeSat's surface, wherein each array is composed by 4 × 4 co-rotating elements. Through counter-rotating of each pair of symmetrical arrays three zero momentum wheels are achieved. Assuming that control...
The state-owned forests in Heilongjiang province made significant contribution to China's economic development, but with a huge price of serious ecological deterioration. So modern forestry construction of the state-owned forest focuses on strengthening the modern forestry ecological system. The key is the selection of key areas of ecological system. This paper takes Yichun state-owned forest for...
The Co-simulation technology for complex product development, design, innovation, assessment, management provided full support. Based on the analysis of complex products co-simulation features, functions and modeling on the basis of the process, based on the HLA/WE_RTI co-simulation of complex product platform and its architecture, Based on a simulation of product integration modeling, simulation...
Security Information Fusion System has recently become one of the major topics in the research area of information security. A great deal of security devices and components have been deployed in network information systems. While improving the systems security performance, they produced lots of redundant or unreliable information. Through the technologies of alert fusion and correlation analysis,...
Type selection and operational suitability test of model are two basic aspects of time series modeling. Ascertaining the order of time series model is the key problem of suitability test. Some traditional order selection criteria haven't yet been adapted for ascertaining an optimal model order. In this paper, a new Singular Value Decomposition (SVD) method for determining the order of an autoregressive...
Traffic forecasting is an important task which is required by overload warning and capacity planning for mobile networks. Based on analysis of real data collected by China Mobile Communications Corporation (CMCC) Heilongjiang Co. Ltd, this paper proposes to use the multiplicative seasonal ARIMA models for mobile communication traffic forecasting. Experiments and test results show that the whole solution...
In this paper we use the concept of business model to analyze how M-Zone, the most popular mobile service brand in China, has succeeded in market. Specifically, we investigate into how China Mobile creates significant value to its customers by efficiently exploring its internal capability and resources, and rationalizing its boundary with other firms. We will look at the properties of technology innovation...
The efficient achievements management is much significance for the development of basic scientific research, and so all of the knowledge resources of achievements should be managed. In order to integrate the different types of knowledge resources of basic research achievements, this paper proposes a supernetwork model of knowledge resources. First, the person network, the material network and the...
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