Xiaoyang Li

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In this paper, a method for through-wall human detection based on the singular values decomposition of the measurement matrices is presented. After demonstrating the sparsity of the matrices using CLEAN algorithm, an SVD algorithm based on Lanczos process is applied to compute their singular values. We also analyze the singular values of matrices(More)
The molecular pathway regulating gastric carcinoma (GC) invasiveness and metastasis remains elusive. Here, we detected significant increase in the phosphorylated epidermal growth factor receptor (pEGFR), MMP7, and MMP13 in the resected GC, compared with the adjacent normal tissue, in patients. Moreover, strong positive correlation was detected between pEGFR(More)
  • Juan Carlos Hallak, Jagadeesh Sivadasan, Carlo Altomonte, Inés Armendariz, Paula Bustos, Mariana Colaccelli +15 others
  • 2009
We develop a model of international trade with export quality requirements and two dimensions of firm heterogeneity. In addition to " productivity " , firms are also heterogeneous in their " caliber " – the ability to produce quality using fewer fixed inputs. Compared to single-attribute models of firm heterogeneity emphasizing either productivity or the(More)
This study aimed to prepare nanoemulsions coated with alginate/chitosan for oral insulin delivery. Uncoated nanoemulsions were prepared by homogenization of a water in oil in water (w/o/w) multiple emulsion that was composed of Labrafac(®) CC, phospholipid, Span™ 80 and Cremorphor(®) EL. Coating of the nanoemulsions was achieved based on polyelectrolyte(More)
Studies showed that vascular diseases were prone to occur in curved arteries. In this paper, biomechanical behaviors of curved artery with flexible wall subjected to physiological flow were presented. Fluid-structure interaction effect was considered. The Von Mises stress variation and distribution patterns, the influence of artery curvature and flexibility(More)