In this paper, for the reduction of the computation time of a deformable approach to pattern recognition, prototype-parallel displacement computation on GPUs (PPDC-GPU) is proposed. The displacement computation used in this study has the virtue of simplicity and consists of locally parallel processing, therefore it is suitable for the implementation on graphical processing units (GPUs). In the ...

In this paper, an intelligent controller to control a smart base-isolated masonry structure is proposed. The smart base isolation consists of rubber bearings and a magnetorheological damper. This semi-active scheme takes advantage of the low power requirement of magnetorheological devices to achieve structural control. The controller is capable of mapping the behaviour of the controlled structu...

where the infimum is taken over all compactly supported (Hamiltonian) functions H : R × [0, 1] → R, and writing Ht(x) = H(x, t) the Hofer norm ‖H‖ = ∫ 1 0 supx Ht(x) − infxHt(x)dt. The diffeomorphism φH is the Hamiltonian diffeomorphism generated by H , that is, the time-1 flow of the timedependent vectorfield Xt defined by Xt⌋ω = dHt. The form ω = ∑n i=1 dxi ∧ dyi is the standard symplectic fo...

Partition of unity enrichment techniques are developed for bimaterial interface cracks. A discontinuous function and the two-dimensional near-tip asymptotic displacement functions are added to the finite element approximation using the framework of partition of unity. This enables the domain to be modelled by finite elements without explicitly meshing the crack surfaces. The crack-tip enrichmen...

We give an exact analytical results for diffusion with a power-law position dependent diffusion coefficient along the main channel (backbone) on a comb and grid comb structures. For the mean square displacement along the backbone of the comb we obtain behavior 〈x2(t)〉 ∼ t, where α is the powerlaw exponent of the position dependent diffusion coefficient D(x) ∼ |x|α. Depending on the value of α w...

Two discontinuous Galerkin schemes for linear elastic waves in two and three dimensions with Dirichlet and optional Neumann boundary conditions are formulated: a pure displacement formulation and a mixed formulation with the displacement and a pressure parameter as variables. The schemes are implemented for two dimensions using Concepts with piecewise linear orthogonal basis functions for the d...

Recently, work in this group has focused on the lateral cosine modulation method (LCM) which can be used for next-generation ultrasound (US) echo imaging and tissue displacement vector/strain tensor measurements (blood, soft tissues, etc.). For instance, in US echo imaging, a high lateral spatial resolution as well as a high axial spatial resolution can be obtained, and in tissue displacement v...

ABSTRACT This paper presents the theoretical developments of two finite strip methods (i.e. semi-analytical and full-analytical) for the post-buckling analysis of isotropic plates. In the semi-analytical finite strip approach, all the displacements are postulated by the appropriate shape functions while in the development process of the full-analytical approach, the Von-Karman’s equilibrium equ...

This paper proposes the refined first order shear deformation theory to investigate the free vibration behavior of bidirectional functionally graded porous plates. This theory satisfies the transverse shear stress free conditions at the top and bottom of the plate, thus avoids the need of a shear correction factor. The rule of mixtures is employed to compute the effective material properties an...