Papers by Keyword: Fine Grained

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Authors: Fa Gui Liu, Nan He, Sheng Wen Li, Fei Liu
Abstract: The continuous development of embedded technology has emerged an increasing demand of internet-based embedded software. The current existing tools only offer coarse-grained network detection, in other words, they don’t satisfy the refining detection standard for the convenience of developers. This paper begins with analysis into defects of the current network detection methods and tools with deep insight from the Netfilter of Linux kernel and protocol stack for packet processing technology, it then proposes a fine-grained network detection method, with which we build up an embedded-software-network detection tool for digital-home-appliances. The built tool can operate real-time and fine-grained monitoring. An experiment has been performed in the final section of the paper to prove the accuracy of the method.
454
Authors: Zhao Liang Jiang, Shi Hong Feng, M.F. Qi, Zhao Qian Li
Abstract: In order to protect ERP system information from authorized users or non- trusted users, a trusted role based access control model was proposed. Combined with the characteristics of enterprises, trusted computation for user is designed to support roles assignment to the users. Meanwhile, Object Lifecycle States (OLSs) are presented for efficient access control to objects. Based on the value of trusted computation, users are assigned the corresponding roles to access control various resources. Finally, there is an empirical research on an ERP System implemented in a manufacturing enterprise.
767
Authors: Nicole Stanford
Abstract: The magnesium alloy AZ31 was processed by severe hot rolling and annealing. This processing was optimised to produce recrystallised grain sizes as small as 2.2μm. Specimens in the as-rolled condition had a grain size of 0.5μm, and exhibited a yield strength in excess of 350MPa. In the fully recrystallised condition, with a grain size of 2.2μm, the material had a yield strength of 260MPa which is almost twice that of the as-received plate. The ductility of the annealed specimens was also increased compared to the as-received condition. The combination of specific strength and ductility brings this newly processed material into a new property space compared to the other light metals.
239
Authors: Jan Ma, W.Y. Lee, W. Cheng, G.E.B. Tan
755
Authors: Guo Duan Liu, Zi Li Kou, Xiao Zhi Yan, Li Lei, Duan Wei He
Abstract: Cubic boron nitride (cBN) is a excellent super hard materials with superior mechanical properties that has been widely used in different industrial applications. Conventional cBN was sintered with binder in the cBN powder, and the binder affect the mechanical properties of cBN. Here we report that we sinter the polycrystalline cBN on WC-16wt%Co substrates without any sintering agent at the pressure 5.5 GPa and temperatures of 1300-1600°C for 10 min. In the sintering, we used 1-2μm fine grained cBN powder as the starting materials, also, liquid substance infiltrated from the substrates and occurred chemical reactions with cBN powder. Reaction contents were investigated at different temperatures according to X-ray diffraction (XRD). Plenty of direct BN-BN bonding was formed in the scanning electron microscopy ( SEM) observation.The hardness of best samples reach 38.5 GPa under the loading force of 5 kg, which have high hardness for the formation of direct BN-BN fine grains in the sample. .
79
Authors: G.D. West, J.M. Perkins, M.H. Lewis
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