This paper presents the design and implementation of a square patch antenna using finite element method. A balanced square patch antenna model has been constructed using FEM (Finite Element Method) with COMSOL multiphysics environment. A parametric analysis is carried out to analzse the performance of the proposed antenna on the basis of Antenna impedance, Radiation frequency and Radiation patt...

We study the optimum transmission scheme that maximizes ergodic capacity of a 2×1 multiple-input single-output (MISO) system, when the channel knowledge at the transmitter is characterized by a known gain ratio and a known probability density function of the phase shift between antennas. Such a channel scenario can arise in a forward link at the base station when there is a single direct path p...

This paper provides a comparison. on three levels. of several promising data-driven methods for selecting the bandwidth of a kernel density estimator. The methods compared are: least squares cross-validation. biased cross-val idation. partitioned cross-val idation. and a plug-in rule. The levels of comparison are: asymptotic rate of convergence to the optimum, explici t calculation in the case ...

The laser power density and its time history from a pulsed molecular nitrogen laser are calculated. Their dependence on the fill pressure and on various parameters of an electric circuit, in which the nitrogen gas acts as a variable resistor, is illustrated. It is shown that the peak power density increases in a circuit with low inductance and high capacitor voltage and that the energy density ...

This work investigated fluoride removal of municipal potable water by electrocoagulation using response surface methodology that was applied in the development of statistical analyzing, modeling and interpreting the resulted treatment data. In addition the response, residual, probability, surface and contour plots were achieved. Fractional factorial design has been applied for the simultaneous ...

We have calculated the heat current in the normal metal/insulator/ supercon-ductor contacts with arbitrary transparency of the insulator barrier. In the tunneling limit (small transparencies), the heat flow out of the normal metal reaches its maximum at temperature T ≃ 0.3∆. At higher values of transparency , the interplay between single-particle tunneling and Andreev reflection determines opti...

Apolipoprotein (apo)C-III-1 from human very low density lipoprotein stimulates 14-fold the activity of lysosomal sphingomyelinase from human fibroblasts. At the sphingomyelin concentrations tested, maximal stimulation was obtained with 5 microM apoC-III-1 or apoC mixture. Apolipoproteins A-I, A-II, B, and C-I conferred little or no stimulation. Sphingomyelinase was stimulated 20-fold by lysopho...

High-density DNA oligo microarrays are widely used in biomedical research. In this paper we describe algorithms to optimize the selection of specific probes for each gene in an entire genome. Having optimized probes for each gene is valuable for two reasons. By minimizing background hybridization they provide more accurate determinations of true expression levels. And having optimum probes elim...

Several unsupervised learning algorithms, neural networks, and support vector machine based classification and clustering approaches are kernel-based, and require sophisticated algorithms for density estimation. The density estimation problem is a nontrivial optimization problem and most of the existing density estimation algorithms provide locally optimal solutions. In this paper we use an ent...

Quantum molecular similarity ~QMS! techniques are used to assess the response of the electron density of various small molecules to application of a static, uniform electric field. Likewise, QMS is used to analyze the changes in electron density generated by the process of floating a basis set. The results obtained show an interrelation between the floating process, the optimum geometry, and th...