Báo cáo "On stability of Lyapunov exponents " ppt

... consider the upper (lower) - stability of Lyapunov exponents of linear differential equations in R n . Sufficient conditions for the upper - stability of maximal exponent of linear systems under linear ... boundesness of the Lyapunov exponents of system (1). Denote by λ 1 ; λ 2 ; ; λ n (λ 1 ≤ λ 2 ≤ ≤ λ n ) the Lyapunov exponents of system (1). Definition 1. The m...

Ngày tải lên: 05/03/2014, 14:20

... boundary of the rectangle Ω. The advantage of the form of the variation δS is that it involves the least possible number of derivatives of the variations δx µ . The remaining derivatives of δx in ... equations of motion, the boundary conditions and the energy-momentum. The plan of our paper is the following. In Section 2 we present the derivation of the Euler -Lagrange equat...

Ngày tải lên: 05/03/2014, 14:20

... Van Dung, Stability of thin plates with compressible material according to the theory of elastoplastic processes, Journal of Mech., Vol 17, No 1(1995), pp. 15-21. 8 Willis. J. ,Stability of media ... S, Stability of deformable systems, Moscow, 1967 (in Russian). 6. Hill R, Plastic deformation and instability in thin-Walled turber under combined loading: a general theory, Journa...

Ngày tải lên: 13/02/2014, 04:20

... Experimental 2.1. Synthesis of Ni-Co powder ferrite A series of cobalt doped nickel ferrite with composition of Ni 1-X Co X Fe 2 O 4 with x ranges from 0.0 to 0.8 (in steps of 0.2) was prepared by ... indications of the presence of a spinel cubic structure. The diffraction lines corresponding to a cubic, spinel-type and crystalline phase provides clear evidence of the form...

Ngày tải lên: 13/02/2014, 04:20

... the contribution of this region to the thermodynamic stability of Hfq. Equilib- rium unfolding studies of Hfq were performed using protein intrinsic fluorescence. Prior to analysis of the denaturation curves, ... the native form of Hfq has an apparent molecular mass of 50 ± 10 kDa, while the unfolded state of Hfq has an average apparent molecular mass of 12 ± 5 kDa. This indi...

Ngày tải lên: 19/02/2014, 12:20

... rid of these notes, please order your copy of ePrint 5.0 now. VNU Journal of Science, Foreign Languages 25 (2009) 186-198 186 The effects of pictures on the reading comprehension of low-proficiency ... understanding of text that meets their proficiency level? ● Do pictures also facilitate low-level learners’ understanding of text that exceeds their proficiency level? The...

Ngày tải lên: 05/03/2014, 12:20

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Ngày tải lên: 14/03/2014, 13:20

... Journal of Science, Mathematics - Physics 23 (2007) 70-74 On the stability of the distribution function of the composed random variables by their index random variable Nguyen Huu Bao ∗ Faculty of ... the stability of η’s distribution function when we have the small change of the distribution of the index r.v ν. ∗ Tel.: 84-4-5634255. E-mail: nhuubao@yahoo.com 70 Nguyen Huu Ba...

Ngày tải lên: 14/03/2014, 13:20

... Combination of Lipomycin M with NPK and microbial fertilizers makes the amount of effective water in the soil higher than that in the case of using only Lipomycin M. Similarly, the amounts of effective ... bioproduct Lipomycin M is produced by scientists of Institute of Biological Technology (Vietnam Academy of Science and Technology) from yeast of Lipomyces starkeyi 7....

Ngày tải lên: 22/03/2014, 12:20

... result were not reported in any of previously investigated species of Lauraceae family in Vietnam. This was a new species of Lauraceae family in Vietnam. The name of this species was Machilus ... chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) from Vietnam will be discussed. The essential oil composition of the different species...

Ngày tải lên: 12/02/2014, 17:20