نتایج جستجو برای: desired ones

تعداد نتایج: 195782  

1996
Pedro Fonseca Zoubir Mammeri

In recent years, non-deterministic clock synchronisation algorithms (NDCSA) have appeared as an attractive alternative to deter-ministic ones. NDCSA ooer a precision that can be made as small as desired. The price to pay is a probability of success that is less than one. We propose an uniform analysis of NDCSA. Our approach strives at decomposing and identifying the factors that aaect the perfo...

1998
S. Knapek

In this paper we consider new upscaling and homogenization methods for the pressure equation that are less sensitive to the boundary condition assumptions than many other published methods. We start from the discretized pressure equation and rely on the construction of subproblems with signii-cantly fewer unknowns, describing the behaviour of the solution of the ne-grid problem in suitable subs...

Journal: :Academic Journal of Interdisciplinary Studies 2014

Journal: :Organic & biomolecular chemistry 2012
Xin Li Xiao-Song Xue Cong Liu Bin Wang Bo-Xuan Tan Jia-Lu Jin Yue-Yan Zhang Nan Dong Jin-Pei Cheng

The current work reports an organocatalytic strategy for the asymmetric catalysis of chiral benzofuran-2(3H)-ones bearing 3-position all-carbon quaternary stereocenters. Accordingly, highly enantioselective Michael addition reactions of 3-substituted benzofuran-2(3H)-ones to nitroolefins have been developed by utilizing a bifunctional tertiary-amine thiourea catalyst. The reactions accommodate ...

Journal: :Canadian Journal of Plant Science 1969

Journal: :IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans 2004

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