Zhang Quan

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  • Dai Yuefa, Wu Bo, Gu Yaqiang, Zhang Quan, Tang Chaojing
  • 2009
With the development of cloud computing, Data security becomes more and more important in cloud computing. This paper analyses the basic problem of cloud computing data security. With the analysis of HDFS architecture, we get the data security requirement of cloud computing and set up a mathematical data model for cloud computing. Finally we build a data(More)
Quantum digital signature combines quantum theory with classical digital signature. The main goal of this field is to take advantage of quantum effects to provide unconditionally secure signature. We present a quantum signature scheme with message recovery without using entangle effect. The most important property of the proposed scheme is that it is not(More)
To investigate whether the mesoporous bioactive glass (MBG) exerts any in vitro bioactivity on rat osteoblasts and the potential regulatory mechanism of this bioactivity. Rat osteoblasts were incubated in the presence and absence (control) of ionic dissolution product of MBG in minimal essential medium. The osteoblast proliferation and differentiation were(More)
In order to explore the mechanisms of the telecommunication industry value chain value growth and promote the Chinese telecommunications industry's better and faster development, this article ,on the basis of segmentally dividing the evolution of China's telecommunication industry value chain, finds that the efficiency of China's telecom industry value(More)
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