Có 25+ tài liệu thuộc chủ đề "Mathematics – Physics"
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Ag-decorated TiO 2 Nanofibers for Surface-enhanced Raman Scattering. SEM images show that the randomly oriented on glass substrate TiO 2 NFs’ diameters are in the range of 150 nm-300 nm and their lengths are up to a few micrometers. After 15-minute photodeposition, Ag NPs with average diameter of about a few tens of nanometers were uniformly and densely decorated on...
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Dynamic Analysis of Eccentrically Stiffened Sandwich Thick Plates with Auxetic Honeycomb Core and GPL-RC Face. Abstract: This study analyses eccentrically stiffened sandwich thick plates with the core layer made of negative poisson material. The analytical method based on the first order shear deformation theory (FSDT) is applied to analyse dynamic response and vibration of the plates. The numerical results of...
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Normal Impact of A Rigid Cone-shaped against A Viscoelastic Plate on Viscoelastic Foundation. Abstract: This paper considers the problem of a low-velocity normal impact of a rigid cone-shaped upon a viscoelastic plate. Approximate solutions of the system of nonlinear integro-differential equations for the contact force and local indentation have been obtained.. The problems with the analysis of the impact of...
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Free Vibration and Bending of Gradient Auxetic Plate Using Finite Element Method. In this paper, the Finite Element Method (in ANSYS) is used to investigate natural frequency of vibration and bending characteristics under varying pressure loads applied on the top skin when changing fundamental properties of some gradient configurations, including angular gradient, thickness gradient and functional gradient configurations of the...
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CTAB-assisted Synthesis and Characterization of FePd Nanoparticles. Abstract: In this study, Fe 50 Pd 50 nanoparticles with small size of around 5-9 nm were prepared by sonoelectrodeposition in the presence of cetyltrimethylammonium bromide (CTAB) surfactant. The as-prepared nanoparticles were annealed at 550 o C for a series of times from 1 h to 6 h. After annealing, a transformation from...