RuiYing Du

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Wireless sensor networks(WSN) are randomly deployed in adversary or dangerous environments so that the security of WSN is extremely important. It is necessary to use encryption system to provide security. However, due to lack of energy and storage, typical key management scheme is not suitable for WSN. We propose an efficient key management scheme for WSN.(More)
Very few studies have investigated the difference in the distribution of metal elements between rice and rice bran samples. In this study, the concentrations of 27 metal elements (Li, Be, Na, Mg, Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Ag, Cd, Cs, Ba, Tl, Pb, and U) in 56 polished rice and their corresponding bran samples were(More)
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