Vasarely's 'nested-squares' illusion shows that 90 degrees corners can be more salient perceptually than straight edges. On the basis of this illusion we have developed a novel visual illusion, the 'Alternating Brightness Star', which shows that sharp corners are more salient than shallow corners (an effect we call 'corner angle salience variation') and that the same corner can be perceived as ...

Current concepts of Z-disk fine structure are based on studies by Knappeis and Carlsen (1), FranziniArmstrong and Porter (2), Reedy (3), and Kelly (4) . Knappeis and Carlsen found that I filaments terminated adjacent to the disk and, in cross-section, were positioned in corners of I squares with 220 f 35 A sides . Each I filament from one side of the disk faced the geometric center of the space...

Least-squares fitting, first developed by Carl Friedrich Gauss, is arguably the most widely used technique in statistical data analysis. It provides a method through which the parameters of a model can be optimised in order to obtain the best fit to a data set through the minimisation of the squared differences between the model and the data. This tutorial document describes the closely associa...

nanocomposites made of carbon nanotube (cnt) bundles have attracted researchers’ attention due to their unusual properties such as: light weight, flexibility and stiffness.  in this paper, the effects of straight and rope-shaped bundles on nanocomposite effective mechanical properties are investigated.  first, fea models are created consisting of cnts with different shapes of straight and rope-...

A stabilized form of finite element formulation known as the Galerkin least-squares (GLS) method is implemented here for solving two-dimensional incompressible non-Newtonian fluid model blood flow in a diseased artery. The modelling this type based on conservation mass and momentum equations, coupled with generalised Newtonian liquid (GNL) constitutive equation characterized by power law (GPL) ...