We study nonlinear transmission of an asymmetric multilayer structure created by alternating slabs of two materials with positive and negative refractive indices. We demonstrate that such a structure exhibits passive spatially nonreciprocal transmission of electromagnetic waves, the analog of the electronic diode. We study the properties of this left-handed diode and confirm its highly nonrecip...

This paper presents the use of a genetic programming (GP) system called STROGANOFF and a multilayer perceptron for thalassemic patient classification. The interested problem covers the test samples from normal subjects and that from different types of thalassemic patient and thalassemic trait. The features, which are the characteristics of red blood cell, Thalassemic Patient Classification Usin...

This paper is devoted to piecewise-constant segmentation of images using a curve evolution approach in a variational formulation. The problem to be solved is also called the minimal partition problem, as formulated by Mumford and Shah [20]. The proposed new models are extensions of the techniques previously introduced in [9], [10], [27]. We represent here the set of boundaries of the segmentati...

A new analysis strategy was used to classify the carcinogenicity of aromatic amines. The physical-chemical parameters are closely related to the carcinogenicity of compounds. Quantitative structure activity relationship (QSAR) is a method of predicting the carcinogenicity of aromatic amine, which can reveal the relationship between carcinogenicity and physical-chemical parameters. This study ac...

A novel perfluorinated magnesium phthalocyanine (MgPcF64) was synthesized and employed to probe nanodomains in hydrophobically modified, amphiphilic cationic polyelectrolytes bearing alkyl and/or fluoroalkyl side chains. MgPcF64 was found to be solubilized exclusively in the aqueous solutions of the fluorocarbon modified polycations, occupying the perfluorinated nanocompartments provided, while...

Many biomaterials and tissues are complex multilayered structures in which the individual layers have distinct mechanical properties that influence the mechanical behavior and define the local cellular microenvironment. Characterization of the mechanical properties of individual layers in intact tissues is technically challenging. Micropipette aspiration (MA) is a proven method for the analysis...

Details of the atomic structure for the Si(100)-(2X1) surface using UHV transmission electron diffraction are described. Reliability factor minimizations of the dynamical diffraction intensities establish conclusively the asymmetry in the structure. Fits performed using multilayer subsurface relaxations to match analytical strain solutions demonstrate the existence of long range subsurface stra...

In this article, we have fabricated and studied a new multilayer structure Si-SiO2/SiNx by reactive magnetron sputtering. The comparison between SiO2 and SiNx host matrices in the optical properties of the multilayers is detailed. Structural analysis was made on the multilayer structures using Fourier transform infrared spectroscopy. The effect of specific annealing treatments on the optical pr...

We present an experimental demonstration of the occurence of omnidirectional reflection in a finite multilayer of two elastic materials. This property is demonstrated in three different samples consisting of a few periods of Pb/Epoxy. The effect is fullfiled thanks to the large mismatch between the elastic parameters of the two materials in the multilayer. The thicknesses of the layers were cho...

Abs t rac t : W e propose an architecture of a multilayer quadratic perceptron (MLQP) that combines advantages of multilayer perceptrons(MLPs) and higher-order feedforward neural networks. The features of MLQP are in its simple structure, practical number of adjustable connection weights and powerful learning ability. I n this paper, the architecture of MLQP is described, a backpropagation lear...