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All-Optical Networks are believed to be the basis of the Next Generation Internet (NGI) infrastructure. Contention resolution represents a challenge considered when implementing resource allocation. This paper presents a performance evaluation for Optical Packet Switching (OPS), attempting to solve contention resolution applying resource allocation through two strategies: Minimum packet buffering...
While transparent optical networks become more and more popular as the basis of the next generation Internet (NGI) infrastructure, such networks raise many security issues, which do not exist in traditional optoelectronic networks. The existing protection schemes which rely heavily on fault detection with the use of network monitoring performed by optoelectronic conversion at the switching nodes,...
Abstract. Current melatonin research is essentially based on the finding of new molecular tools, including synthetic or natural agonists and antagonists for the melatonin receptors and synthetic inhibitors of the enzymes involved in its biosynthesis. Indeed, the use of these compounds will improve our understanding of some of the numerous mechanisms of action of melatonin. The present report deals...
Some properties of the holomorphic functions defined in polysectors in [C^n] having an asymptotic development at the origin, in Mlajima's sense, are studied. We extend the Weierstrass preparation and division theorems to this context, in full generality, supposing that the domain of the "division variable" is a disc. We remove this condition if n = 2, but we need additional hypothesis. The...
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