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

Volume 23, Issue 2(May, 2015)

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1. FEKETE–SZEGÖ FUNCTIONAL FOR A GENERALIZED CLASS OF NON-BAZILEVI FUNCTIONS DEFINED
by Roberta Bucur & Daniel Breaz
Abstract

In this paper we obtain Fekete–Szegö inequalities for a new subclass of analytic functions defined by using a generalized differential operator. Some of our results generalize the related work of some authors.

Source: International Journal of Research and Reviews in Applied Sciences
May 2015-- Vol. 23 Issue 2 -- 2015

2. FINITE DIFFERENCES METHOD AND ADAPTIVE GRIDS IN THE METHOD OF LINES FOR PARTIAL DIFFERENTIAL EQUATION

by Sangare Boureima

Abstract

In this paper a time-dependent moving-grid method is described to numerically solve time-dependent partial differential equations (PDEs) in one space dimensions involving fine scale structures such as steep moving fronts, emerging steep layers, pulses and shocks. Smoothing in the spatial direction is employed to control grid clustering and expansion. Additional smoothing in the temporal direction ensures a smooth progression of the grid points in time by preventing the points from responding too quickly to current values of the weight functions. In particular, we focus attention on finite differences scheme and adaptative grids using Method Of Line (MOL) toolbox within MATLAB. The numerical simulation includes various spatial approximation schemes based on finite differences and slope limiters. Several finite difference schemes, are compared. The performance of the algorithm is demonstrated with illustrative example including, a model of flame propagation, a methanisation in a reactor problem, and a classical Korteweg-de-Vries equation.

Source: International Journal of Research and Reviews in Applied Sciences 
May 2015-- Vol. 23 Issue 2 -- 2015

3. THE ILL-CONDITIONED PROBLEM IN PARTICLE SIZE MEASUREMENT BASED ON LIGHT EXTINCTION METHOD
by Duan Tianxiong & Hu Bin
Abstract

In the visible light region, the sources and specific performance of ill-conditioned problem in particle sizing using light extinction method are calculated and analyzed. The experiments are performed with standard polystyrene particles. And the improved global POWELL algorithm is used to inverse the particle size distributions. Both simulation and experimental results show that the ill-conditioned problem in the light extinction method is serious for the submicron particles. It is sensitive to noise, leading to the poor stability and accuracy of the inverse results.

Source: International Journal of Research and Reviews in Applied Sciences
May 2015-- Vol. 23 Issue 2 -- 2015

4. COMPARISON OF DIFFERENT NUMERICAL TECHNIQUES FOR THE DEVELOPMENT OF A SIMULATOR OF SURFACTANT ASSISTED ENHANCED OIL RECOVERY PROCESS

by Kamilu Folorunsho Oyedeko & Alfred Akpoveta Susu

Abstract

In this work, a simulator is designed for enhanced oil recovery process for surfactant assisted water flooding. The system being investigated consists of three components (petroleum, water and surfactant) and two-phases (aqueous and oleic). The model equations are characterized by a system of non-linear, partial, differential equations: the continuity equation for the transport of each component, Darcy’s equation for the flow of each phase and algebraic equations. The simulator incorporates first order effects, with scope to accommodate two or three dimensions, two fluid phases and one adsorbent phase and four other components. The numerical methods used in the solution of the model equations are the orthogonal collocation, finite difference, and coherence theory techniques. Matlab computer programs were used for the numerical solution of the model equations. The results of the orthogonal collocation solution were compared with those of finite difference and coherence solutions. The results indicate that the concentration of surfactants for orthogonal collocation show more features than the predictions of the coherence solutions and the finite difference, offering more opportunities for further understanding of the physical nature of the complex problem. Also, comparison of the orthogonal collocation solution with computations based on finite difference and coherence theory methods offers possible explanation for the observed differences especially between the methods and the two different reservoirs they represent.

Source: International Journal of Research and Reviews in Applied Sciences 
May 2015-- Vol. 23 Issue 2 -- 2015

5. STUDY OF URBAN SMART GROWTH APPROACH BASED ON THE PRINCIPLES AND GUIDELINES FOR NEW PLANNING
by Abbas Matloubi
Abstract

Rapidly expanding cities has caused many problems in most countries. So not only urban policy, but also economic, social and environmental issues in urban areas, especially in Tehran have been affected by this phenomenon. Although the primary cause of the rapid expansion of cities is increasing population, but it is unreasonable dispersion has undesirable effects on the natural environment and cultural fragmentation of countries. Many efforts have been done to alleviate the negative effects of the diffused development of cities. The most important strategy is "smart urban growth”, as a strategy to deal with the "scattering" of urban smart growth that Smart growth is a substitute for the scatter. This study seeks to provide a framework approach to urban smart growth strategies, Including the principles and methods of planning, in order to develop effective strategies for improving urban transport and urban land use in Tehran. In this context, the principles, strategies and benefits of economic, social and environmental impacts of smart growth is investigated and studied.

Source: International Journal of Research and Reviews in Applied Sciences
May 2015-- Vol. 23 Issue 2 -- 2015

6. SURVEY ON ENHANCING THE DATA SECURITY OF THE CLOUD COMPUTING ENVIRONMENT BY USING DATA SEGREGATION TECHNIQUE
by Elham Abd Al Latif Al Badawi & Ahmed Kayed
Abstract

Many organizations are now migrating to the cloud and investing in this technology. The cloud computing has solved many problems of the traditional computing, such as handling peak loads(storage), installing software updates, high availability of services and maintenance for cloud customers at  reasonable cost.

Due to the fact that the services and information of many organizations had been outsourced in the cloud, it becomes impossible to place a virtual protection and to create boundaries around the organization castle.

 The new technology has created new challenges such as data security.

The data security has always remained major issue in the IT, but in the cloud it becomes a serious concern since the data will be distributed at different places all over the globe and the resources are shared by different customers so it makes it difficult to clearly identify, authenticate, authorize and monitor who is accessing the customer’s data.

This survey paper aims to discuss the using of data segregation technique to enhance cloud computing data security and it also describes the advantages and disadvantage of the existing data segregation strategies and techniques.

Source: International Journal of Research and Reviews in Applied Sciences
May 2015-- Vol. 23 Issue 2 -- 2015

7. SUPPLY CHAIN PERFORMANCE EVALUATION IN THE IT INDUSTRY
by Mohammad Taghipour, Mehrnaz Bagheri, Mahbube Khodarezaei & Farjad Farid
Abstract

The appraisal of several performance measure agendas and metrics already accessible proposes that supply chain performance measure can be detected under different categories such as cost and non-cost; strategic and operational level; financial and business process perspective; customer, financial, internal operation, learning and growth perspective. Lack of appropriate knowledge in supply chain management that touches project success can lead to increased cost and delays. Hiring supply chain management in IT industry, with respect to their huge size and large investments, may help to elevate use of resources and implementation time. For this purpose, supply chain management may be used to evaluate chain performance, set future performance goals, and draw appropriate path for project success. This requires a comprehensive means and measures to assess different aspects of supply chain and make systematic evaluation possible. In this study, we have developed supply chain of IT industry based on BSC from existing decision making models. Then, industrial projects performance and performance evaluation measures have been determined using a designed questionnaire. Finally, project performance evaluation measures are proposed based on lean thinking principles and ranked using Expert Choice software.

Source: International Journal of Research and Reviews in Applied Sciences
May 2015-- Vol. 23 Issue 2 -- 2015

8. THE EFFECT OF UTILIZING QUALITATIVE EVALUATION APPROACH ON SELF-CONCEPT OF ELEMENTARY STUDENTS OF ISFAHAN IN 1392-1393
by Maryam Jahandar & Taghi Aghahoseini
Abstract

Qualitative evaluation is one of the important approaches which has been utilized for the students of elementary level towards the fundamental ideal of the pedagogical system. The goal of this study has been to declare the differences between the qualitative evaluation and the students’ positive concept in the period of 1392 and 1393. The sample of the study has been recruited from 300 elementary students from sextuple regions of Esfahan, which has been chosen randomly according to the volume of the region. The method of the study has been quality. In this research, we have utilized the questionnaire created by the qualitative evaluation and standard self- concept questionnaire. The self- concept questionnaire is of construct validity and the researchers’ questionnaire is written by the qualitative evaluation which has been authorized by the education science experts and is consisted of content and formal validity. Their reliability for qualitative evaluation questionnaire with the Cronbach Alpha factor has been summed 0,876 as well as for self-concept questionnaire with the result of 0, 91. The accumulated results of this study has been analyzed by one sample T-test and Multiple Regression Test. The results of the statistical analysis showed that  the multiple relationship between  dimensions of  qualitative evaluation and the self -concept is (R= 0,72) and the Coefficient of Determination is (P= 0,000 and 0,52) and beta coefficient  respectively  for portfolio dimension is (P= 0,000 and β= 0,429), check list dimension is (β= 0,368 and P=0,000), record anecdotal is (P= 0,000 and β=0,331), self –assessment is (P=0,000 and β=0,317), performance Test is (P= 0,000 and β= 0,187), and achievement  Report is(β= 0,162 and P= 0,000).

Source: International Journal of Research and Reviews in Applied Sciences
May 2015-- Vol. 23 Issue 2 -- 2015

9. SOME MODIFICATIONS OF ADOMIAN DECOMPOSITION METHODS FOR NONLINEAR PARTIAL DIFFERENTIAL EQUATIONS
by M. Al-Mazmumy & H. Al-Malki
Abstract

In this paper, some modifications of Adomian decomposition method apply for solving nonlinear partial differential equations. These efficient modifications gives a simple powerful tool for obtaining the solutions without a need for large size of computations . The numerical results show the efficiency and accuracy of these methods.

Source: International Journal of Research and Reviews in Applied Sciences
May 2015-- Vol. 23 Issue 2 -- 2015













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