We report first-principles structural models of surfaces of glassy GeSe2 (g-GeSe2). The structural properties of bulk and surface g-GeSe2 are compared with recent experimental data. The first diffraction peaks in the partial structure factors are accurately reproduced in both the surface and bulk models. We also examine the transition of the local bonding environment from the bulk to the surfac...

We study the problem of reconstructing low-rank matrices from their noisy observations. We formulate the problem in the Bayesian framework, which allows us to exploit structural properties of matrices in addition to low-rankedness, such as sparsity. We propose an efficient approximate message passing algorithm, derived from the belief propagation algorithm, to perform the Bayesian inference for...

The reconstruction of sagittal trans-rectal optical tomography for prostate imaging is presented with assumption of structural guidance from trans-rectal ultrasound. The spatial prior combined with Jacobian weighing improves the recovery of lesion depth. © 2008 Optical Society of America OCIS codes: (170.6960) Tomography; (170.3010) Image reconstruction techniques; (170.7230) Urology

due to structural characteristics and spiritual concepts which are latent inside iranian gardens, it has always drawn attention of domestic and foreign researchers and one of the objectives of these researchers was an attempt to achieve historical garden model in iran which have been modified or subjected to decline. the studies, which have been carried out concerning to iranian historical gard...

The human organs geometric modeling software which can achieve two-dimensional medical image browsing, pretreatment and three dimensional (3D) reconstruction in this paper is designed. This software implements medical image segmentation using the method combining the region growing and the interactive segmentation. Also, the MC surface reconstruction algorithm is utilized to achieve the three-d...

OBJECTIVE Radical debridement and reconstruction is necessary for surgical treatment of pyogenic spondylitis to control infection and to provide segmental stability. The authors identified 25 patients who underwent surgery for pyogenic spondylitis using freeze-dried structural allograft for reconstruction. This study aimed to evaluate and demonstrate the effectiveness and safety of a freeze-dri...