Blind image separation based on exponentiated transmuted Weibull distribution

In recent years the processing of blind image separation has been investigated. As a result, a number of feature extraction algorithms for direct application of such image structures have been developed. For example, separation of mixed fingerprints found in any crime scene, in which a mixture of two or more fingerprints may be obtained, for identification, we have to separate them. In this paper, we have proposed a new technique for separating a multiple mixed images based on exponentiated transmuted Weibull distribution. To adaptively estimate the parameters of such score functions, an efficient method based on maximum likelihood and genetic algorithm will be used. We also calculate the accuracy of this proposed distribution and compare the algorithmic performance using the efficient approach with other previous generalized distributions. We find from the numerical results that the proposed distribution has flexibility and an efficient resultComment: 14 pages, 12 figures, 4 tables. International Journal of Computer Science and Information Security (IJCSIS),Vol. 14, No. 3, March 2016 (pp. 423-433

Textile Diamond Dipole and Artificial Magnetic Conductor Performance under Bending, Wetness and Specific Absorption Rate Measurements

Textile diamond dipole and Artificial Magnetic Conductor (AMC) have been proposed and tested under wearable and body centric measurements. The proposed antenna and AMC sheet are entirely made of textiles for both the substrate and conducting parts, thus making it suitable for wearable communications. Directive radiation patterns with high gain are obtained with the proposed AMC sheet, hence minimizing the radiation towards the human body. In this study, wearable and body centric measurements are investigated which include bending, wetness and Specific Absorption Rate (SAR). Bending is found not to give significant effect to the antenna and AMC performance, as opposed to wetness that yields severe performance distortion. However, the original performance is retrieved once the antenna and AMC dried. Moreover, notable SAR reduction is achieved with the introduction of the AMC sheet, which is appropriate to reduce the radiation that penetrates into human flesh

Wave reflection at a free interface in an anisotropic pyroelectric medium with nonclassical thermoelasticity

In this paper, the well-established two-dimensional mathematical model for linear pyroelectric materials is employed to investigate the reflection of waves at the boundary between a vacuum and an elastic, transversely isotropic, pyroelectric material. A comparative study between the solutions of (a) classical thermoelasticity, (b) Cattaneo–Lord–Shulman theory and (c) Green–Lindsay theory equations, characterised by none, one and two relaxation times, respectively, is presented. Suitable boundary conditions are considered in order to determine the reflection coefficients when incident elasto–electro–thermal waves impinge the free interface. It is established that, in the quasi-electrostatic approximation, three different classes of waves: (1) two principally elastic waves, namely a quasi-longitudinal Primary (qP) wave and a quasi-transverse Secondary (qS) wave; and (2) a mainly thermal (qT) wave. The observed electrical effects are, on the other hand, a direct consequence of mechanical and thermal phenomena due to pyroelectric coupling. The computed reflection coefficients of plane qP waves are found to depend upon the angle of incidence, the elastic, electric and thermal parameters of the medium, as well as the thermal relaxation times. The special cases of normal and grazing incidence are also derived and discussed. Finally, the reflection coefficients are computed for cadmium selenide observing the influence of (1) the anisotropy of the material, (2) the electrical potential and (3) temperature variations and (4) the thermal relaxation times on the reflection coefficients

Electron refraction at lateral atomic interfaces

We present theoretical simulations of electron refraction at the lateral atomic interface between a “homogeneous” Cu(111) surface and the “nanostructured” one-monolayer (ML) Ag/Cu(111) dislocation lattice. Calculations are performed for electron binding energies barely below the 1 ML Ag/ Cu(111) M-point gap (binding energy EB ¼53 meV, below the Fermi level) and slightly above its C -point energy (EB ¼160 meV), both characterized by isotropic/circular constant energy surfaces. Using plane-wave-expansion and boundary-element methods, we show that electron refraction occurs at the interface, the Snell law is obeyed, and a total internal reflection occurs beyond the critical angle. Additionally, a weak negative refraction is observed for EB ¼53 meV electron energy at beam incidence higher than the critical angle. Such an interesting observation stems from the interface phase-matching and momentum conservation with the umklapp bands at the second Brillouin zone of the dislocation lattice. The present analysis is not restricted to our Cu-Ag/Cu model system but can be readily extended to technologically relevant interfaces with spinpolarized, highly featured, and anisotropic constant energy contours, such as those characteristic for Rashba systems and topological insulators. Published by AIP Publishing.Peer ReviewedPostprint (published version

QUERCETIN MITIGATES TOXICITY AND OXIDATIVE STRESS MOTIVATED BY BISPHENOL A IN LIVER OF MALE RATS

Objective: Epidemiological reports have indicated a correlation between the increasing of bisphenol A (BPA) levels in the environment and the incidence of hepatotoxicity. The present study aimed to evaluate the protective effect of quercetin on oxidative stress, inflammatory markers, apoptotic and antiapoptotic markers in the liver tissue of the bisphenol A treated rats.Methods: Forty-eight male Wistar rats were divided into six groups; Group(1): Negative control group (Con), Group(2): Corn oil control group orally administered 1 ml of corn oil/rat daily for two months (Corn), Group(3): Olive oil control group orally administered 1 ml olive oil/rat daily for two months (Olive), Group(4): Quercetin (Qu) control group orally received Qu dissolved in olive oil (50 mg/kg b. wt.) daily for two months (Qu). Group(5): Positive control group orally received Bisphenol A (BPA) dissolved in corn oil in a dose of 50 mg/kg b. wt. daily for two months (BPA), Group(6): Quercetin treated group orally administered 50 mg/kg b. wt. of BPA and treated with Qu (50 mg/kg b. wt. Orally) daily for two months (BPA+Qu).Results: BPA exposure resulted in significant elevations of oxidative stress, as evidenced by the increased malondialdehyde level and glutathione-S-transferase activity associated with significant decrease in glutathione peroxidase activity in the liver tissue. Moreover, BPA caused an up regulation in the values of liver function enzymes. Also, BPA produced a significant elevation in the hepatic Interleuckin-6 (IL-6) and caspase-3 levels with a significant decline in antiapoptotic protein B-cell lymphoma 2 (Bcl2) level in liver tissue. Quercetin significantly attenuated the BPA-evoked liver oxidative stress and modulated the activities of liver function enzymes. In addition, treatment of quercetin with BPA resulted in an improvement of IL-6 and caspase-3 levels associated with a significant increase in hepatic protein Bcl2 expression.Conclusion: These data suggest that quercetin protects rat liver from BPA-induced oxidative stress, probably via its antioxidant activity, anti-inflammatory and antiapoptotic effects. So, Quercetin is a promising pharmacological agent for preventing the potential hepatotoxicity of BPA following occupational or environmental exposures.Keywords: Bisphenol A, Quercetin, hepatotoxicity, Antioxidant, Anti-inflammatory effect, Antiapoptotic effec