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The constructing of multicast light-trees in WDM network with sparse splitting has been proven to be an NP-complete problem. The Member-Only (MO) algorithm provides the best links stress and wavelength usage, and the Distance Priority (DP) algorithm reduces the diameter of tree and average delay, which are sensitive in multicast applications. In order to diminish the diameter of tree and average delay...
The construction of multicast light-trees in WDM network with sparse splitting has been proved to be an NP-complete problem. To reduce the diameter of the tree and average delay, an improved algorithm called Nearest Connector First Heuristic (NCFH) is proposed. The simulation results show that the proposed algorithm performs well.
A simple device for making pressure microinjections into the brain, its application for delivery of a tracer substance, biotin dextran amine, and an example of the resulting axonal transport are described. The device is based on the use of a Luer tip Hamilton microliter syringe mated directly to the plastic hub of an injection needle assembly in which the metal needle has been replaced by a glass...
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