International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2511

Table of Content: 9 April; 7(15)

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...

Author(s): Madad Khan, Saima Anis, Neelab Ahmed and Shamsul Haq

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...

Author(s): Mohamed. A. Amr and Saeed H. Al-Meer

April 2012

Using a gas-filled detector in a rotation modulation collimator system for near-field imaging

Author(s): Tareq Alrefae,

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...

Author(s): K. A. Vijayalakshmi, M. Mekala, C. P. Yoganand and K. Navaneetha Pandiyaraj

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...

Author(s): S. Zhao, C. Z. Cai and J. L. Tang

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...

Author(s): A. Avazpour, R. Gheisari, E. Rahnama and N. M. Sharifloo

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...

Author(s): Jonah T. Ageh, Paul M. Ejikeme and John A. Ibemesi

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...

Author(s): Maged Marghany

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...

Author(s): K. R. Raslan, A. A. Soliman and A. H. A. Ali

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...

Author(s): Ehab A. El-Sayed

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...

Author(s): Mehmet Merdan

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...

Author(s): Hyun-Tae Kim and Chang Wook Ahn

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...

Author(s): Zainal Hisham Che Soh, Syahrul Afzal Che Abdullah and Kamal Zuhairi Zamli

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...

Author(s): A. M. Yazdani, S. Buyamin, S. Mahmoudzadeh, Z. Ibrahim and M. F. Rahmat

April 2012

Evaluation of Turkish black amber: A case study of Oltu (Erzurum), NE Turkey

  Turkish black amber named Oltutaşi 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 Oltutaşi and...

Author(s): Ekrem Kalkan, Özgür Bilici and Hasan Kolaylı

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...

Author(s): Nart COŞKUN

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...

Author(s): Rosal, A., Rodríguez, A., González, Z. and Jiménez, L.