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The eProcurement planning is crucial to reduce purchase cost while selecting the right suppliers and it contributes to improve corporate competitiveness. This eProcurement planning research describes a framework for the integration of a knowledge-based system capable of identifying a goal model from a Primitive Model. The Primitive Model is screened by the… (More)
We define Bertrand curves in a 3-dimensional Riemannian manifold and prove that a Frenet curve a with the curvature j and the torsion s in a 3-dimensional simply connected space form is a Bertrand curve if and only if it satisfies s 1⁄4 0 or jþ as 1⁄4 b for constants a and b – 0. 2012 Elsevier Inc. All rights reserved.
For estimating the direction of arrival (DOA)s of non-stationary source signals such as speech and audio, a constrained optimization problem (COP) that exploits the spatial diversity provided by an array of sensors is formulated in terms of a noise-eliminated local 2ρth-order cumulant matrix. The COP solution provides a weight vector to the look… (More)