Article history: Received 11 August 2013 Received in revised form 29 December 2014 Accepted 12 January 2015 Available online 16 January 2015

among different discretization approaches, finite difference method (fdm) is widely used for acoustic and elastic full-wave form modeling. an inevitable deficit of the technique, however, is its sever requirement to computational resources. a promising solution is parallelization, where the problem is broken into several segments, and the calculations are distributed over different processors. ...

background. one of the treatment methods for facial fractures is close reduction technique, but treatment with intermaxillary fixation (imf) interferes with normal nutrition, and malnutrition can affect patient’s recovery. anthropometric measurements such as skinfold thickness and body mass index (bmi) are universal indexes for diagnosing malnutrition. so in this study we pointed out how treatm...

In this paper, a novel contrast enhancement technique for contrast enhancement of a low-contrast satellite image has been proposed based on the singular value decomposition (SVD) and discrete cosine transform (DCT). The singular value matrix represents the intensity information of the given image and any change on the singular values change the intensity of the input image. The proposed techniq...

one of the latest approaches for analyzing the coupled time series is mf-dxa. this technique has been used in many disciplines such as finance. in this paper, we have analyzed tehran stock exchange indexes by mf-dxa and have found a scaling behavior between the industrial, financial and price indexes. by surrogating, we could see that the effects of low probability events in industrial and fina...

A reduced order modeling method based on a system description in terms of orthonormal Laguerre functions, together with a Krylov subspace decomposition technique is presented. The link with Padé approximation, the block Arnoldi process and singular value decomposition (SVD) leads to a simple and stable implementation of the algorithm. Novel features of the approach include the determination of ...

Domain decomposition ideas have long been an essential tool for the solution of PDEs on parallel computers. In recent years many research efforts have been focused on employing recursively domain decomposition methods to obtain multilevel preconditioners to be used with Krylov solvers. In this context, we developed MLD2P4 (MultiLevel Domain Decomposition Parallel Preconditioners Package based o...