In the past forty years considerable progress has been achieved on the knowledge of human blood as a non-Newtonian shear-thinning suspension, whose initial state, that is at rest (stasis) or at very low shear rates, has a gel-like internal structure which is destroyed as shear stress increases. The main goal of this communication is to describe the role of geometrical aspects during RBC (red bl...

Selection combining is considered for upgrading the performance of mobile units in wireless networks. Three upgrade schemes are considered: 2 antennas array, 3 antennas array in circular geometrical setting and 3 antennas in linear geometrical setting. The problem of diversity loss due to antennas proximity is addressed and an approach for decreasing the loss is proposed. The approach is based ...

The time-domain uniform asymptotic solution (TD-UAS) for the transient scattered field excited by the high-frequency (HF) pulse wave incident on a cylindrically curved open surface with a varying radius of curvature is presented in this paper. The TD-UAS, effective in the transition regions including the geometrical boundaries RB and SB, is constructed by the geometrical rays, the surface diffr...

In speech recognition studies, vocal tract length normalization (VTLN) techniques are widely used to cancel ageand genderdifference. In VTLN, the distortion is often modeled as a linear transform in a cepstrum space; ĉ=Ac. In our previous study, the geometrical properties ofA were discussed and it was shown that the matrix can be approximated as rotation matrix. In this study, a new method of b...

Based on local invariant feature points and cross ratio principle, this paper presents a feature-point-based image watermarking scheme. It is robust to geometric attacks and some signal processes. It extracts local invariant feature points from the image using the improved scale invariant feature transform algorithm. Utilizing these points as vertexes it constructs some quadrilaterals to be as ...

This paper presents a methodology to transform a problem to make it suitable for classification methods, while reducing its complexity so that the classification models extracted are more accurate. The problem is represented by a dataset, where each instance consists of a variable number of descriptors and a class label. We study dataset transformations in order to describe each instance by a s...

Surface defects are important factors to surface quality of steel plates. The detection and recognition of surface defects can provide effective information for production optimization. There are several types of surface defects on hot rolled steel plates which are covered by lots of scales. The purpose of this paper is to recognize eight kinds of typical surface defects from scales. Bandelet t...

some physical properties such as geometrical, gravimetrical, frictional and aerodynamic features of seeds of desi chickpea and its splits were studied at a moisture content of 8.2 and 9.0% w., respectively from north-western of iran. geometrical and gravimetrical properties including the average length, width, thickness, the geometric mean of diameter, sphericity, 1000-seed weight, unit weight,...

In this paper, we propose an effective watermarking scheme using self-patch correlation based on Radon transform for image. The robustness against Rotation, Scaling, and Translation (RST) attacks is achieved using the translation property of the Radon transform and self-patch correlation. The Radon transform emphasizes and detects the linear characteristic to calculate the angle of image rotati...

False-positive problem (FPP) is a one of the challenging tasks for researchers. It authenticates wrong owner to access multimedia content. To overcome, FPP problem, this paper introduces an efficient watermarking method based on selection highest entropy blocks. In method, cover and watermark images are initially shuffled through Arnold transform. Then, encrypted further processed by 2-level di...