International Journal of Signal Processing Systems Vol. 3, No. 1, June 2015 R. C. Choukimath and V. V. Ayyannavar Abstract—Message authentication is one of the most effective ways to thwart unauthorized and corrupted messages from being forwarded in wireless sensor networks (WSNs). For this reason, many message authentication schemes have been developed, based on either symmetric-key cryptosystems or public-key cryptosystems. Most of them, however, have the limitations of high computationa ...
دسته بندی : مقاله های انگلیسی فایل : pdf زبان مقاله : انگلیسی تعداد صفحه : 8 رشته مقاله : شیمی نوع مقاله : علمی مقدمه :Although explosive studies on pursuing high-performance Pt-based nanomaterials for the fuel cell reactions have been carried out, the combined controls of surface composition, exposed facet and interior structure of the catalyst remains formidable challenge. We demonstrate herein a facile chemical approach to realize a new class of intermetallic Pt-Pb-Ni octahedra f ...