Academic Research Publishing Agency Press
International Journal of Research and Reviews in Applied Sciences
ISSN: 2076-734X, EISSN: 2076-7366

Volume 17, Issue 3(December, 2013)

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1. CLASSIFICATION OF POSITIVE SOLUTIONS OF NONLINEAR SYSTEMS OF VOLTERRA INTEGRAL EQUATIONS
by Youssef Raffoul & Amani Sayed
Abstract

We give asymptotic classification of the positive solutions of a class of two-dimensional nonlinear Volterra integro-differential equations. Also, we furnish necessary and conditions for the existence of such positive solutions.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

2. ON JENSEN’S AND HERMITE-HADAMARD’S INEQUALITY

by Zlatko Pavic & Vedran Novoselac

Abstract

The article deals with the generalizations of Jensen’s inequality in the discrete and integral form. One generalization of Hermite-Hadamard’s inequality is also presented. The transition from discrete to integral means is realized using the integral method with convex combinations.

Source: International Journal of Research and Reviews in Applied Sciences 
December 2013 -- Vol. 17 Issue 3 -- 2013

3. LINEAR AND NONLINEAR OPTICAL RESPONSE OF Au AND Pt NANOPARTICLE SUSPENSIONS UNDER A LOW POWER LASER IRRADIATION AT 1064 nm
by M. Eslamifar
Abstract

In this work, nonlinear refraction properties of gold (Au) and platinum (Pt) nanoparticles dispersed in the water are reported. The thermally induced effective nonlinear refractive index due to nonlocal heat effect is characterized by Z-scan technique with a low power continuous wave (CW) laser at 1064 nm. This allows us to measure thermo-optic coefficient and effective nonlinear refractive index in the tested samples. Low power optical limiting, with low limiting thresholds is obtained in the samples based on thermal defocusing.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

4. FUNCTIONAL PLATING DEPOSITION IN NON-STATIONARY ELECTROLYSIS
by Alexandr A. Khmyl & Vladimir L. Lanin
Abstract

The functional galvanic plating widely applied for electronic components, assembly by soldering or microwelding technology, should possess a complex of the electro physical and mechanical properties providing high reliability of equipment. For formation of the set properties of plating the new methods of galvanic deposition in non-stationary electrolysis is perspective.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

5. OPOLOGICAL ANALYSIS OF THE DEFAULT MODE NETWORK: A GRAPH THEORY APPROACH
by Ibrahim Eid Hassan Saleh
Abstract

Graph theory defines a graph as a set of nodes (in this study, regions of interest, ROIs) and edges (functional connections). The present study aims to explore the topological properties of the Default Mode Network (DMN) in the framework of graph theory and the alterations induced on it by a cognitive task, with respect to the resting condition. The principal finding of the present study is that the default mode network of resting state condition (DMNRest) have high local efficiency of information transfer, robustness, better performance and high correlational strengths more than the default mode network cognitive task condition (DMNTask).

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

6. A DISCRETE PARAMETRIC MARKOV-CHAIN MODEL OF A TWO NON-IDENTICAL UNIT COLD STANDBY SYSTEM WITH PREVENTIVE-MAINTENANCE
by Rakesh Gupta & Parul Bhardwaj
Abstract

This paper deals with the profit analysis of a two non-identical units (unit-1 and unit-2) cold standby system model assuming two modes- normal and total failure of each unit. The unit-1 is sent for preventive maintenance (PM) after its working for a random period of time. A single repairman is available with the system for PM of unit-1 and repair of both units. The random variables denoting the time to PM and PM time of unit-1, failure times and repair times of both units follow geometric distributions with different parameters. The various measures of system effectiveness are obtained by using regenerative point technique.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

7. INVESTIGATION OF BIOHEAT TRANSFER EQUATION OF PENNES VIA A NEW METHOD BASED ON WRM & HOMOTOPY PERTURBATION
by Shahnazari M., Aghanajafi C., Azimifar M. & Jamali H.
Abstract

Heat transfer has an important role in biological systems of living beings. Precise evaluation of temperature distribution in live tissues can be effective in cure of lots of diseases as like as cancer. Therefore, it is required to have an adequate heat model  to be able to study heat transfer in live tissues. Several models have been offered by now which among them, Pennes biothermal model has the most usage in evaluation of heat transfer in tissues of living beings. Some researcher have analyzed the Pennes equation of biothermal transfer by numeric methods. The goal of this study is to evaluate temperature distribution in live tissues while the skin is under effect of frequency thermal flux. To perform this study, the Pennes biothermal Equation has been analyzed by a wrm-homotopy perturbation combination method. Comparison of results obtained in this study with other methods, shows the capability of the method used to analyze these kind of problems. Finally effect of time, distance from skin surface, frequency and amplitude of heat flux and perfusion rate of blood on the temperature distribution will be evaluated.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

8. KINETIC ANALYSIS OF 2-HEPTENE REFORMING ON PLATINUM/ALUMINA CATALYST USING THE TIKHONOV REGULARIZATION TECHNIQUE
by Aramide Adenike Adesina & Alfred Akpoveta Susu
Abstract

In this work, the kinetic analysis of 2-heptene reforming on Platinum/Alumina catalyst was carried out using the concentration-time data reported by Aberuagba [8]. The Tikhonov regularization technique was used for the confirmation of the experimental concentration-time data to rate-concentration data. Due to the ill-posed nature of the problem of obtaining of reaction rates from experimental data, conventional methods will lead to noise amplification of the experimental data. Hence, Tikhonov regularization technique is preferably employed because it is entirely independent of reaction rate models and it also manages to minimize noise amplification, thus, leading to more reliable results. The kinetic parameters obtained by the application of the Nelder-Mead simplex optimization technique to formulated mechanistic models permit discrimination among rival kinetic models based upon physicochemical criteria, analysis of the residuals, and thermodynamic tests. The rate-determining step was found to be the surface reaction of adsorbed methylcyclohexane to adsorbed toluene with dissociative adsorption of bi-molecular hydrogen specie on the catalyst surface.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

9. MODELING THE INTERACTION OF EMOTION AND COGNITION
by J. Ezquerro & M. Iza
Abstract

Research on the interaction between emotion and cognition has become particularly active along the last years, so that lots of computational models of emotion have been developed. However, to the date, none of them address fully the integration of emotion generation and its effects in the context of cognitive processes. This work tries to unify several models of computational emotions for embodied agents with the work done in cognitive architectures, based on psychological theories and applications.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

10. THE COUPLING EFFECT FROM THE ACTION OF MULTIPLE FACTORS ON THE COMPOSITE WALL WITH OUTER LIGHTWEIGHT INSULATING LAYER
by Shengcai Li, Peng Cao & Yan Zhou
Abstract

The reason why covering plaster layers in lightweight insulating composite wall are easily to be damaged is related with many factors. In this paper, the coupling effect of multiple factors such as temperature, wind, gravity, different physical and mechanical properties of constructional materials, is assumed to be the cause. A set of special device is designed to simulate and test the coupling effect. And the test specimens based on practical project are classified into two groups in given conditions. The distribution of temperature and the characteristic curves of coupling stress and strain of different layers in different conditions have been sorted out based on the data from the test and theoretical analysis with FEM tools. The results show that the peak stress and strain at some parts in covering layers is larger under the impact of multiple factors than that of a single factor. The peak stress and strain at covering layers in the coupling situation is amplified up to75% compared with that under temperature effect.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

11. SOLUTION OF TWO-DIMENSIONAL FREDHOLM INTEGRAL EQUATIONS OF THE FIRST KIND BY USING OPTIMAL HOMOTOPY ASYMPTITIC METHOD
by M. Salameh Taleb Almousa & Ahmad Izani Md Ismail
Abstract

The purpose of this study is to present the optimal homotopy asymptotic method (OHAM) for solving two-dimensional linear and nonlinear Fredholm integral equations of the first kind. Several examples are illustrated to show that the method is effective and simple to apply for solving two-dimensional linear and nonlinear Fredholm integral equations of the first kind.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

12. SOLITARY WAVE SOLUTIONS FOR SOME NON-LINEAR PARTIAL DIFFERENTIAL EQUATIONS USING SINE-COSINE METHOD
by Yusur Suhail Ali
Abstract

This paper implemented the sine-cosine method for solving Nonlinear partial differential equations PDES. Method has been successfully tested on Combined Kdv-Mkdv equation, Sharma-Tasso-Olver equation, Coupled Klien-Gordon equation, Generalized-Pochhammer-Chree equation (GPC). The calculations demonstrate the effectiveness and convenience of the method for nonlinear system of PDEs.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

13. TEMPERATURE DEPENDENCEFLUCTUATIONS OF SUPERCONDUCTING CORRECTIONS TO THE THERMAL CONDUCTIVITY IN METAL NANOGRAIN
by Gorji Mohammad, Benam M.Reza & Adel Fereshteh
Abstract

Superconducting fluctuations corrections on the thermal conductance in Nano grainmetals at different range of temperature are calculated. In these temperature regimes Coulomb interaction effects and weak localization effects (quantum interference) have an effective role and the Weidman-Franzlow is violated. We calculate and investigate these deviancesin the Weidman-Franz low and Lorenz number.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013

14. EFFECT OF TANTALUM ADDITION TO THE MAGNETIC PROPERTIES OF CoCr ALLOY THIN FILMS
by Usman M. Gana
Abstract

The effect of tantalum on the magnetic properties of Co-alloy thin film is investigated. Samples in which the tantalum substitutes into the hcp crystal structure of the alloy as well as samples in which it is segregated to the grain boundaries are studied. Grain boundary segregation (grain isolation) was found to decrease media parameters responsible high media noise. Neither isolation nor substitution was found to improve saturation magnetization.

Source: International Journal of Research and Reviews in Applied Sciences
December 2013 -- Vol. 17 Issue 3 -- 2013













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