April 2012
Characterizations of fuzzy intra-regular Abel-Grassmann's groupoids
Mostly, models of real life problems are consist of uncertainties. Fuzzy set theory is one of the tool for handling such uncertainties and for applications of fuzzy set theory we have used non-associative algebraic structure namely AG-groupoids. Specifically, we have discussed the -fuzzy left ideals,-fuzzy ideals, -fuzzy semiprime ideals and -fuzzy bi-ideals in an AG-groupoid. We have...
April 2012
Extracting 226Ra from sand filter samples using MnO2 impregnated resin and determination by sector field inductively coupled plasma mass spectrometry
An analytical procedure was proposed for the determination of 226Ra at ultratrace levels in sand filters using sector field inductively coupled plasma mass spectrometry (ICP-MS). Radium was pre-concentrated using an impregnated manganese dioxide filter and separated from strontium using Eichrom“Sr-resin.” Following the extraction chromatography, polyatomic ions of Pb and W were eliminated by...
April 2012
Using a gas-filled detector in a rotation modulation collimator system for near-field imaging
April 2012
Studies on adhesive properties of polypropylene (PP) and polycarbonate (PC) film surfaces using DC glow discharge plasma
Direct current (DC) glow discharge plasma has been used to increase the adhesive properties of polypropylene (PP) and polycarbonate (PC) film surfaces and make them suitable for technical applications. The modified surfaces were characterized by contact angle, atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) analysis. Also, improved adhesion properties were analyzed using T-Peel...
April 2012
Process analysis of electroless copper plating for AB5-type hydrogen storage alloy using support vector regression
Surface modification is an effective method to improve the electrochemical property of hydrogen storage alloy. In order to investigate the influence of process factors of electroless copper (Cu) plating for AB5-type hydrogen storage alloy on Cu coating mass, a novel modeling approach, support vector regression (SVR) combined with particle swarm optimization (PSO), was proposed to...
April 2012
Muon catalyzed fusion in the target H-T/D2/H-D by taking fast muon conversion
In past years, two/three-layer hydrogen targets with a composition of H/D/T at temperature ~3K have been studied for muon catalyzed fusion. Several theoretical and experimental studies have evaluated that the conversion efficiency of fast muons in such targets is very low. Here, the muon cycling coefficient has been determined for the heterogeneous target of by taking the conversion...
April 2012
Temperature effects on iodine catalysed dimerization of fluted pumpkin (Telfairia occidentalis) seed oil
In this work the effects of temperature on the dimerization of pumpkin seed (Telfairia occidentalis) oil was investigated and the dependence of dimer yields on reaction temperature and time was determined. Pumpkin seed oil (2283.75 g) was solvent extracted from seeds of the fluted pumpkin (Telfairia occidentalis), using petroleum ether (60 to 80°C). Samples of the oil were dimerized at varying...
April 2012
Fuzzy B-spline algorithm for 3-D lineament reconstruction
Lineaments are vital geological features that play the role of a key indicator for ground water and petroleum searching. At present, there is no study that has utilised remote sensing satellite data to reconstruct three dimensional (3-D) lineament visualization in the Uinted Arab Emirates (UAE). This work aimed at reconstructing a (3-D) lineament visualization from multispectral remote sensing...
April 2012
A comparison between the variational iteration method and Adomian decomposition method for the FitzHugh-Nagumo equations
In this work, the variational iteration method and the decomposition method are used to determine the solutions of the FitzHugh-Nagumo (FN) equations. The two algorithms are illustrated by studying an initial value problem. The obtained results show that only few terms are required to deduce approximated solutions which are found to be accurate and efficient. Key words: FitzHugh-Nagumo...
April 2012
The partial eigenvalue assignment for non-symmetric quadratic pencil in multi-input case
In this paper, we propose a parametric solution to the partial eigenvalue assignment problem by state feedback control for non-symmetric quadratic pencil in multi-input case using orthogonality relations between eigenvectors. Our solution can be implemented with only a partial knowledge of the spectrum and the corresponding eigenvectors of non-symmetric quadratic pencil. We show that the number of eigenvalues...
April 2012
Solutions of time-fractional reaction-diffusion equation with modified Riemann-Liouville derivative
In this article, a new application of fractional variational iteration method (FVIM) has been used for solution of nonlinear fractional reaction-diffusion with modified Riemann-Liouville derivative. A new application of FVIM was extended to derive analytical solutions in the form of a series for these equations. It is indicated that the solutions obtained by theFVIM are reliable and effective method...
April 2012
An interactive evolutionary approach to designing novel recommender systems
Recently, recommender systems have been widely used in e-commerce websites to help customers discover items they want. Since a recommender system should be able to provide users with helpful information regarding items that might interest them, the ability to immediately respond to changes in a user’s preference is a valuable asset of the systems. Thus, this work presents a novel recommender system that...
April 2012
Comparative study of distributed implementation using Tuple space technology of two t-way test suite generation strategies
This paper highlights a comparative study of two new distributed t-way test suite generation strategies, called test suite generator one parameter (TS_OP) and test suite generator one test (TS_OT). Both strategies adopt computational greedy algorithm and were implemented on distributed shared memory environment using Tuple space technology. To characterize the behavior of both strategies in term of...
April 2012
Brain emotional learning based intelligent controller for stepper motor trajectory tracking
Excellent attributes of permanent magnet stepper motor (PMSM) make it prominent in robotic, aerospace, and numerical machine applications. However, the problem of nonlinearity and presence of mechanical configuration changes, particularly in precision reference trajectory tracking, must be put into perspective. In this paper, a novel cognitive strategy based on the emotional learning in limbic system of...
April 2012
Evaluation of Turkish black amber: A case study of Oltu (Erzurum), NE Turkey
Turkish black amber named OltutaÅŸi in Turkish is one of the best examples of semi-precious stone to be found in the world. It is mainly extracted in the county of Oltu (Erzurum) and surrounding mountains, NE Turkey since the 18th century. At the present time, it is known as ornamental stone and its rosary is very famous worldwide. However, there is no modern review of geological properties of the OltutaÅŸi...
April 2012
The effectiveness of electrical resistivity imaging in sinkhole investigations
Electrical resistivity methods are generally used to explore buried sinkholes and to predict dropout, sinkholes is analysed. A sinkhole of known geology is used to illustrate the limitation of vertical electrical sounding technique. Approximated geological sections of the sinkhole are modelled to investigate the effectiveness of the resistivity imaging which is considered to be two-dimensional exploration...
April 2012
Use of banana tree residues as pulp for paper and combustible
The aim of this work is to characterize banana tree residues and use it in pulping and combustion processes. The soda-anthraquinone pulping of the banana tree residues can be simulated by polynomial models, and then predict the pulp properties (yield, Kappa number, viscosity and brightness) as a function of operating variables (temperature 160 to 180°C, time 40 to 60 min and soda concentration 7.5 to...
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