An efficient energy-saving method is proposed by taking the advantages of lightweight encoder and high compression efficiency of Compressed Sensing, which is extremely suitable for image nodes in Wireless Multi-media Sensor Networks. However, the Orthogonal Matching Pursuit (OMP) reconstruction algorithms in CS can not balance the reconstruction image quality and processing time. A novel recons...

A novel stereo image compression method based on disparitycompensated residual image structure analysis is presented in this paper. The residual image resulting from the subtraction of the target image by the predicted one is exploited in this scheme. Unlike natural images, for which 2D-orthogonal transforms such as 2D-DCT provides good energy compaction in the frequency domain, stereo residual...

In order to protect the digital audio and video products copyright in the network, an improved audio blind watermarking algorithm scheme based on discrete wavelet transform (DWT) and singular value decomposition (SVD) is proposed. In the algorithm, an original audio is split as blocks and each block is decomposed on discrete wavelet transform for two degree, then first quarter audio approximate...

The stiffness of motion segments, together with muscle actions, stabilizes the spinal column. The objective of this study was to compare the experimentally measured load-displacement behavior of porcine lumbar motion segments in vitro with physiological axial compressive preloads of 0, 200 and 400 N equilibrated in a physiological fluid environment, for small displacements about the neutral pos...

required for setting up the stiffness matrix. The far-field part of the matrix can be approximated by compression schemes like the fast multipole method or H-matrix techniques. The near-field part is typically approximated by special quadrature rules like the Sauter-Schwab technique that can handle the singular integrals appearing in the diagonal and near-diagonal matrix elements. Since computi...

For an n-by-n complex matrix A in a block form with the (possibly) nonzero blocks only on the diagonal above the main one, we consider two other matrices whose nonzero entries are along the diagonal above the main one and consist of the norms or minimum moduli of the diagonal blocks of A. In this paper, we obtain two inequalities relating the numeical radii of these matrices and also determine ...

Column strengthening is a very common practice for improving the seismic performance of reinforced concrete frame structures or repairing damage after event. Several methods are employed column strengthening, which can improve strength by preventing its shear, bending compression failure. However, not all allow connections between adjacent floors, thus beam-column joint could be limited column-...

In this paper, the characterisation of elastic shear buckling behaviour simply supported plates diagonally stiffened excluding influence direct stresses is made. Two broad numerical parametric studies consisting linear analysis by finite element method are performed, covering entire practical range critical parameters like aspect ratio and stiffener’s mechanical properties. first study, attenti...

Mechanical stress in coronary arteries has been postulated to cause endothelial injury and atherosclerotic lesions, but the relationship between the pattern of coronary artery movement (CAM) and lesion severity is not known. In the present study CAM was classified into 10 patterns, which were grouped into 3 classes: (1) bend type = coronary artery flexes into a curve; (2) compression type = seg...