Báo cáo "Vibration of corrugated cross-ply laminated composite plates " pot

... vibration of the corrugated cross-ply laminated composite plates are also analysed. 1. Introduction Laminated structures like corrugated cross-ply laminated composite plates in the form of sine wave ... analysis of corrugated cross-ply laminated composite plates in the form of a sin wave are developed based on the Kirchoff-Love’s theory and the extensio...

Ngày tải lên: 28/03/2014, 13:20

... ∆ s (F ) we denote the collection of all minors of C ij (F ) of the size n − r − 2s +2, the condition ∆ s (F ) = 0 indicates that all the minors of C ij (F )ofthesizen − r − 2s +2 vanish at the ... help of the dual basis X ∗ ,Y ∗ ,Z ∗ ,T ∗ and with the local coordinates as (α, β, γ, δ). Thus, the general form of an element of g is A = aX + bY + cZ + dT and the general form of...

Ngày tải lên: 05/03/2014, 14:20

... amplitude and phase of real vibration of atomic chain containing dopant atom have been derived. They contain Morse potential parameters characterizing vibration of each pair of atoms. Numerical ... can be expressed as a function of a force constant of the one-dimensional bare interaction potential [4,9]. For more detailed description of thermodynamic effects of the substan...

Ngày tải lên: 14/03/2014, 13:20

... 577 (86.0%) of species, 340 (85.0%) of genus and 110 (83.0%) of family, meanwhile the Monocotyledonae are included by 93 (14.0%) of species, 58 (15.0%) of genus and 23 (17.0%) of family, respectively ... Journal of Science, Natural Sciences and Technology 23 (2007) 194-199 196 Table 1. The dispertion of taxa into large taxonomic groups Number of families Number of...

Ngày tải lên: 12/02/2014, 10:20

... Paek Kee Yoeup 3 1 Department of Biology, College of Science, VNU, 334 Nguyen Trai, Hanoi, Vietnam 2 Department of Agroforestry, Dalat University 3 Department of Horticulture, Chungbuk National ... concentration of 30 mM. The highest ginsenoside production was (7.35 mg/g DW) at initial medium nitrogen concentration of 30 mM after 25 days of culture. Table 3. Effect of...

Ngày tải lên: 12/02/2014, 10:20

... Hoan Kiem (Ha Noi). The results of the quantitative analyses of Microcystis spp. and screening of microcystin by ELISA in the water are presented. The cell density of Microcystis spp. ranged from ... Thi My Hoa Department of Biology, College of Sciences, Hue University, 77 Nguyen Hue, Hue, Vietnam Nhận ngày 16 tháng 3 năm 2010 Abstract. This paper reports the analyses of cy...

Ngày tải lên: 12/02/2014, 17:20

... material and preparation of sweet potato leaf extract Fresh sweet potatoes (Ipomoea batatas (L) Lam) leaves were collected after the classification made by Department of Botany, Vietnam National ... Development of HFD-fed and STZ-induced type 2 diabetic mice After 6 weeks of dietary manipulation, a subset of the mice from each dietary group was injected intraperitoneally (i...

Ngày tải lên: 12/02/2014, 17:20

... concentration of oxidant should be increased rather than elongate the treatment time. Effect of CaO concentration Concentration of CaO was varied in range of 3.2 to 4.8 g/l with 0.25 g/l of CaOCl 2 ... explained by precipitation of Ca 2+ with soluble pollutants. Effect of CaOCl 2 concentration Wastewater was added with a range of 40 - 200 mg/l of CaOCl 2 with fixe...

Ngày tải lên: 12/02/2014, 17:20

... Sonoelectrochemistry has the potential benefit of combining sonochemistry with electrochemistry. Some of these beneficial effects include acceleration of mass transport, cleaning and degassing of the electrode ... current was turned off for a fixed duration t off of 0.5 s. During t on , FePt nanoparticles were deposited on the surface of the electrode When the current was swit...

Ngày tải lên: 13/02/2014, 03:20

... and because of the heteroepitaxial growth of films WO 3 in which the parameters of plane ITO (440) are slightly larger than the ones of WO 3 planes. The relation between shifts of XRD peaks ... vibrational frequencies of m-WO 3 are quite higher than these of o-WO 3 . And the reason is that parameters of crystalline structure of m-WO 3 are smaller than that of o-WO 3...

Ngày tải lên: 13/02/2014, 03:20