International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2556

Table of Content: 4 JULY; 6(13)

July 2011

Recombinant technology and nanoscience

  Recombinant technology is the most important prerequisite for the effective engineering of nanostructured deoxyribonucleic acid  and protein based materials in nanoscience. Recombinant technology allows the manipulation of the properties of molecules, including physico-chemical properties of proteins that control electron transport and photochemical processes in the development of molecular electronic...

Author(s): Icy D’Silva

July 2011

New extraction method of the scattering parameters of a physical system starting from its causal bond graph model: Application to a microwave filter

  The general idea consists of using jointly the bond graph technique and the scattering formalism. For that, we propose to extract the scattering parameters of a microwave filter with localized or distributed elements from its causal bond graph model while starting with the determination of the integro-differentials operators which is based, in their determination, on the causal ways and causal loops present...

Author(s): Hichem Taghouti and Abdelkader Mami,

July 2011

An efficient neuro-fuzzy control of synchronous generator: A case study

  Synchronous machine is an AC rotating machine whose speed under steady state condition is proportional to the frequency of the current in its armature. This paper presents an efficient neuro-fuzzy control of synchronous generator. It has been compared with fuzzy control and multilayer control. As evinced through the simulation results, neuro-fuzzy and type-2 are comparatively superior over the...

Author(s): Gagandeep Kaur and Yaduvir Singh

July 2011

The effect of zeolite amount on the physical and mechanical properties of concrete

  Concrete is one of the most commonly used materials in building construction and thus it is important to investigate its properties. For these purpose four different types of lightweight concrete has been produced by using different amount of zeolite used as an aggregate. The zeolites were obtained from around the Göldes town of Manisa province in Turkey. The ultrasound velocity, compressive strength,...

Author(s): Åžemsettin Kılınçarslan

July 2011

Effect of binder and silica sand on unconfined compressive strength of cemented peat

  The aim of this paper is to evaluate the unconfined compressive strength of cemented peat in comparison to that of untreated peat. A laboratory study on the unconfined compressive strength of cemented peat is important in order to formulate a suitable and economical mix design for stabilized peat columns developed in deep peatland to support highway construction. To characterize the strength behavior of...

Author(s): Wong Leong Sing, Roslan Hashim and Faisal Ali

July 2011

Nonlinear analysis of load-deflection testing of reinforced one-way slab strengthened by carbon fiber reinforced polymer (CFRP) and using artificial neural network (ANN) for prediction

  Load-deflection curve is the most important part of the structural analysis of RC beam and slab. The load-deflection analysis of the RC one-way slab strengthened by CFRP using experimental work, finite element analysis (FEA), artificial neural network (ANN), and a comparison of them together are the important objective of this study. The dimension of the one-way slab was 1800×400×120 mm which was...

Author(s): Mohammad Reza Halvaey Far, M. Z. Jumaat, S. Vahid Razavi T, Pegah Mohammadi and Hamed Mohammadi

July 2011

Open wells, sanitary features, pollutions and water qualities: Case study of Ibadan slums, Nigeria

  The study was carried out to assess the well waters, their sanitary features, prevailing pollutions and water qualities in some communities in the South- east Local Government Area of Ibadan metropolis, Nigeria. A random selection of houses in the area with forty shallow hand dug wells grouped into eight zones was considered. Structured questionnaires and oral interviews were used to gather...

Author(s): George M. Ochieng, Olumuyiwa I. Ojo, Kola Ogedengbe and Julius M. Ndambuki

July 2011

Environmental surface degradation of galvanised and mild steels in cattle and poultry wastes and urea solution

  An investigation of the corrosive properties of cattle and poultry dung/urine slurries and urea solution and by extension, the corrosion resistance of galvanised and mild steels in these respective test media was performed by the weight loss method. The results showed corrosive surface degradation of galvanised steel and extensive corrosion of the mild steel test specimens by the corrosive constituents of the...

Author(s): C. A. Loto and A. P. I. Popoola

July 2011

Particle swarm optimisation prediction model for surface roughness

  Acrylic sheet is a crystal clear (with transparency equal to optical glass), lightweight material having outstanding weather ability, high impact resistance, good chemical resistance, and excellent thermo-formability and machinability. This paper develops the artificial intelligent model using partial swarm optimization (PSO) to predict the optimum surface roughness when cutting acrylic sheets with laser beam...

Author(s): M. M. Noor, K. Kadirgama, and M. M. Rahman,

July 2011

Combustor aerodynamic using radial swirler

  A study has been conducted to investigate the flow pattern in a gas turbine combustion chamber by simulation and experimental approaches. Flow pattern inside a combustor is important to self sustain the flame, increase mixing of air and fuel, and increase combustion intensity. Aerodynamically curved vanes allow the incoming axial flow to turn gradually. This inhibits flow separation on the suction side of the...

Author(s): M. N. Mohd Jaafar, K. Jusoff, Mohamed Seroleh Osman and Mohd Shaiful Ashrul Ishak

July 2011

Study on the mechanical behavior of steel reinforced high strength concrete subjected to impact loading

  In this paper, the impact experiments of steel fiber reinforced concrete with same impact velocity and different steel fiber contents are processed by one-stage light gas gun. Through the manganin gauges embedded in the target, the voltage-time signals are recorded. Lagrangian method is used to analyze the flow field, then the particle velocity (u), specific energy, specific volume with time are...

Author(s): Guoping Jiang, Shi Huan, Chujie Jiao and Weijun Tao

July 2011

Radiometric assessment of natural radioactivity levels around Mrima Hill, Kenya

  Mrima Hill, located in the South coast of Kenya is known for high natural background radiation, due to the presence of radiogenic heavy minerals such as monazites and carbonatites. The activity concentration of 238U, 232Th and 40K in soil samples from the hill have been determined by gamma ray spectrometry using NaI(Tl) detector and decomposition of measured gamma-spectra. As a measure of...

Author(s): J. M. Kebwaro, I. V. S. Rathore, N. O. Hashim and A. O. Mustapha

July 2011

3D tsunami wave reconstruction from Quickbird data by using fuzzy B-spline

  This work reports on a study carried out for the generation of three-dimensional (3D) successive tsunami waves using high resolution satellite Quickbird data. The main objective of this study is to utilize fuzzy arithmetic to remodel real 3D tsunami wave propagation and runup from optical data such as Quickbird. In doing so, two-dimensional Fourier transform (2DFFT) was used to extract the successive tsunami...

Author(s): Maged Marghany and Mazlan Hashim

July 2011

A numerical method for retrieving sea surface salinity from MODIS satellite data

  This work presents a new approach for modeling sea surface salinity (SSS) from MODIS satellite data. In doing so, the least squares algorithm is used to retrieve SSS from multi MODIS bands data. Thus, the basic linear model has been solved by using least square estimators. In situ measurements are collected along the east coast of peninsular Malaysia by using hydrolab instrument. The study shows...

Author(s): MAGED Marghany and MAZLAN Hashim

July 2011

Soil slope deformation behavior in relation to soil water interaction based on centrifuge physical modeling

  As development on hill slope areas has increased in Ulu Klang Malaysia, a number of landslides have occurred during the rainy season in this area since 1993, including Highland Towers (1993), Taman Zooview (2006), and Bukit Antarabangsa (2008). Recent studies have suggested the large influence of antecedent rainfall, amount of rainfall, rainfall intensity, and the physical properties of the soil on slope...

Author(s): Muhammad Mukhlisin, Ilyias Idris, Wan Zuhairi Wan Yaacob, Ahmed ElShafieand Mohd Raihan Taha

July 2011

Fruit physical characteristics responses of young apricot trees to different irrigation regimes and yield, quality, vegetative growth, and evapotranspiration relations

  This study was carried out to investigate effects of different irrigation regimes on fruit pomological properties of drip-irrigated young apricot trees in 2005 and 2008. Six different irrigation treatments were used: five of which (S1, S2, S3, S4, and S5) were based on adjustment coefficients of Class A pan evaporation (0.50, 0.75, 1.00, 1.25, and 1.50). The other treatment (S6) was regulated deficit...

Author(s): Sebahattin Kaya, Salih Evren, Erdal Dasci and M. Cemal Adiguzel

July 2011

Effect of wrestling on the foot sole of elite wrestlers

  The present study investigated changes in the foot soles of wrestlers. The study compared 11 pedobarographic parameters of the contact area of the foot sole area, maximal force, peak pressure, average maximal pressure and time pressure integral of elite wrestlers and a control group comprised of healthy individuals. An EMED-SF (Novel GmbH, Munich, Germany) plantar pressure analysis system was used in the...

Author(s): Latif AYDOS

July 2011

A new calculation method for thermal and electical characterization in CdTe and CdSe semiconductors

  A new calculation method has been developed and used to model electron transport properties in semiconductor devices under thermal and electrical applications. Using the relaxation-time approximation, the Boltzmann transport equation is solved using the currently established values of the material parameters. This method is used to carry out the thermal energy flux, electrical conductivity, seebeck...

Author(s): H. Arabshahi,

July 2011

Calculation of gamma-ray spectroscopy of pg9/2+ isomers in 69,71,73,75,77,79As nuclei

  We have calculated binding energy, reduced transition probabilities and deformation parameter in 69,71,73,75,77,79As nuclei. The energies of projectile-like fragments and Q-value in 76Ge (635 MeV) + 198Pt reactions are also calculated. The theoretical calculations of projectile like fragments (PLFs) energies are compared with the experimental values. The systematic energies for...

Author(s): I. Hossain, J. Islam, N. N. A. M. A. Ghani, M. E. Hoque, K. K. Viswanathan, H. Y. Abdullah, M. A. Saeed, M. H. Al-Monthery and I. M. Ahmed

July 2011

Investigations of proton beam energy of the MC-50 cyclotron at KIRAMS

  The accuracy of the measured excitation functions of nuclear reactions largely depend on the precise measurements of the exposed beam energy in activation experiment. We investigated the proton beam energy of the MC-50 cyclotron at the Korea Institute of Radiological and Medical Sciences (KIRAMS) employing the method natCu(p,xn)62Zn /natCu(p,xn)65Zn together with a stacked-foil activation technique. The...

Author(s): Mayeen Uddin Khandaker, Guinyun Kim, Kwangsoo Kim, Hasan Bin Abu Kassim and Bijan Nikouravan

July 2011

New method for edge detection and de noising via fuzzy cellular automata

  In this article, a new method is presented for eliminating noise and for detecting image edges through the use of fuzzy cellular automata. The algorithm based on the proposed method is used for edge detection in Gray level images and for noise elimination in images containing salt and pepper noise. In this method, eight specific contiguity states are considered for each pixel and sixteen numbers are derived...

Author(s): Khadijeh Mirzaei, Homayun Motameni and Rasul Enayatifar

July 2011

Comparison of Naïve bayes classifier with back propagation neural network classifier based on f - folds feature extraction algorithm for ball bearing fault diagnostic system

  This paper is intended to compare the Naïve bayes classifier for ball bearing fault diagnostic system with the back propagation neural network based on the f-folds feature extraction algorithm. The f-folds feature extraction algorithm has been used with different number of folders and clusters. The two classifiers have shown similar classification accuracies. The Naive bayes classifier has not...

Author(s): O. Addin, S. M. Sapuan, M. Othman and B. A. Ahmed Ali

July 2011

Link establishment and performance evaluation in IEEE 802.16 wireless mesh networks

  Wireless mesh networks (WMNs) are one of the emerging technologies. Their capability for self-organization significantly reduces the complexity of network deployment and maintenance, and thus, requires minimal upfront investment. These networks consist of simple mesh routers and mesh clients, where mesh routers have minimal mobility and form the backbone of WMNs. They provide network access for both mesh and...

Author(s): Mohammad Siraj, and Kamalrulnizam Abu Bakar

July 2011

Farsi digit recognition via features extraction

  In this paper, a new method is proposed to extract the features of a one-number Persian image in which for the final verification of the extracted features, a three-layer neural network (mesh) of Perceptron has been utilized. The method is capable of extracting some ideal features from a one-number image that are stable against rotation, movement, size change and noise. The method is examined on a...

Author(s): Mehdi Alirezanejad and Rasul Enayatifar

July 2011

Efficiency analysis and classification of bank by using Data Envelopment Analysis (DEA) Model: Evidence of Iranian Bank

  Data envelopment analysis is the most practical nonparametric methods to compute efficiency and to rank decision- making units. This method is based on a series of optimizing and using the technique of linear programming. Using this method, this paper evaluates the efficiency of Industrial and Mine Bank in Iran. Using this method, the rank of each branch has been measured according to the types of efficiency...

Author(s): Ali Mansoury and Mahdi Salehi

July 2011

Exit-selection behaviors during a classroom evacuation

  A modified version of the existing Cellular Automata (CA) model is proposed to simulate an evacuation experiment conducted in a classroom with and without obstacles. This work present the use of CA with neural network decision-making capabilities to simulate an exit-selection phenomenon in the experiment, and an intelligent exit-selection behavior was observed in our model. The experimental and simulation...

Author(s): Lim Eng Aik

July 2011

User-session-based automatic test case generation using GA

  User-session-based testing which relies on capturing and replaying real user sessions is an effective approach to test web applications. However, as a black-box testing, test case generation totally based on user session data may not be qualified for ensuring the reliability of web applications. This paper proposed an approach in terms of gray-box testing, combining user session data with request dependence...

Author(s): Xuan Peng and Lu Lu

July 2011

A non-polynomial spline method for solving linear fourth-order boundary-value problems

  In this paper, we use a non-polynomial spline method to develop a numerical technique for solving linear fourth-order boundary-value problems which are first reduced to a system of second-order boundary-value problems. Three numerical examples are considered to demonstrate the usefulness of the method and to show that the method converges with sufficient accuracy to the exact solutions.   Key...

Author(s): Omotayo A. Taiwo and Oladotun M. Ogunlaran

July 2011

The association between C-572G polymorphism of the Interleukin 6 gene promoter and type 2 diabetes mellitus in a Chinese Han population

  As an important inflammatory marker, plasma interleukin-6(IL-6) is associated with type 2 diabetes. However, the distribution of C-572G polymorphism of the IL-6 and its association with type 2 diabetes in Han population are still unclear. The objective of this study was to explore the distribution of C-572G polymorphism in healthy Han subjects and to evaluate the association between the human interleukin-6...

Author(s): Yuxia Wang, Lingfang Kong, Xueying Wang, Yanli Cao and Yuping Song

July 2011

Adsorption in column of Cu (II), Ni (II) and Pb (II) with XAD-7 resin impregnated with bis (2-ethylhexyl) ammonium bis (2-ethylhexyl) dithiocarbamate (BEABEDC) in aqueous solution

  The extraction of copper, nickel and lead in mini-column pack of resin XAD-7, impregnated with BEABEDC was realized by varying the concentration of metallic solution, flow rate of elution in the case of copper in order to carry out the kinetic exchanges which govern the system. These experiments were carried out in acidic region. Extraction chromatography is combined with the spectrometer of atomic absorption...

Author(s): R. Diouf, S. A. Ndiaye and L. Muhr