Processing and interpretation of advanced space-borne thermal emission and reflection radiometer (ASTER) data for lithological mapping in ophiolite complex
November 2011
The Advanced space-borne thermal emission and reflection radiometer (ASTER) remote sensing data has suitable spectral and spatial properties for detailed lithological mapping. ASTER data is highly effective for lithological mapping in arid and semi-arid regions where geologic structures are extensively exposed. This study has applied spectral transform approaches, consisting of principal component analysis...
Optimum louver angle design for a louvered fin heat exchanger
November 2011
This paper suggests a method for finding the optimal louver angle of a fin heat exchanger by use of a simplified conjugate-gradient method (SCGM) and a three-dimensional computational fluid dynamics model. The search for optimum louver angles ranging from θ= 15o to 45o for suitable louver pitches and fluid input velocity are carried out for Reynolds number ReH (based on the fin...
Efficiency assessment of a cogeneration system
November 2011
For the sustainable usage of fossil fuels; thermodynamic analysis allows for improvements not necessarily attainable via energy methods, like increased efficiency, reduced fuel use and reduced environmental emissions. The first law is widely used in engineering practice and is the basis of the heat-balance method of analysis that is commonly used in energy systems performance analysis. However, the second law...
Identifying genes related with non-small cell lung cancer via transcription factors-target genes relationship
November 2011
The developments of gene expression profiling technology have deeply influenced the understanding of lung cancer biology. By microarray data, we constructed a regulation network to identify potential genes that are highly correlated to non-small cell lung cancer. Of the network, some transcription factors and target genes, including perturbation factors (PPARG), ETV4, TGFBR2 and ATP2A2, have been...
Magnesium and iron removal in mine water using roughing filters
November 2011
Roughing filters can be considered as a major pre-treatment process for mine water, since they efficiently separate fine solids particles over prolonged periods without addition of chemicals. A pilot plant was designed at delcoal. The design and sizing of the pilot plant was guided by wegelin design criteria. Gravel was used as a control medium since it is one of the most commonly used roughing filter media...
Modeling the kinetic of solute diffusion from sugarbeet particles based on electric conductivity measurements
November 2011
The aim of the present work is to validate a method based on electric conductivity measurements to monitor and analyze the kinetics of solute transfer at ambient temperature from agro-food solids (sugar beet particles) into a liquid phase (water). The first step consists of studying the correlation between two simultaneous measurements, that is, concentrations and electric conductivity of particles bed. A...
Investigation of drug delivery on anticancer drug by SWCNT with theoretical studies
November 2011
The interaction of anticancer drug Sn(CH3)2(N-acetyl-L-cysteinate), that is called (N-acetyl-L-cysteinato-O,S) dimethyl tin(IV), with single walled carbon nanotube (SWCNT) is investigated by Quantum chemical ab initio calculations at HF/(LanL2DZ+STO-3G) and HF/(LanL2DZ+6-31G) levels in gas phase and solution. The solvent effect is taken into account via the self-consistent reaction field (SCRF)...
Modelling the impact of drug resistance in malaria transmission and its optimal control analysis
November 2011
We derive and analyse a deterministic model for the transmission of malaria disease with drug resistance in the infectives. Firstly, we calculate the basic reproduction number, R, and investigate the existence and stability of equilibria. The system is found to exhibit backward bifurcation, with this occurrence, the classical epidemiological requirement for effective eradication of malaria, R < 1, is no...
Automorphisms of real four dimensional Lie algebras
November 2011
We are calculating the automorphisms of real Lie algebras in four dimensional matrix method. At first, we introduced the adjoint matrices and we reduced Jacobi and mix Jacobs identities to matrix form, then we presented the automorphisms of real lie algebras. At the end we compared our results to another article. Key words: Lie algebras, Lie brackets, automorphism, adjoint...
Special type of developable surfaces in terms of focal curves of spacelike biharmonic general helices with timelike normal in the Lorentzian
November 2011
In this paper, we study focal curves of spacelike biharmonic general helices in the Lorentzian group of rigid motions . We characterize the spacelike biharmonic general helices in terms of their curvature and torsion in the Lorentzian group of rigid motions . Moreover, we construct parametric equations of special type developable surfaces in terms of focal curves of spacelike biharmonic general...
Rarely generalized ideal (QUOTE ) QUOTE QUOTE continuous functions in ideal topological spaces
November 2011
In this paper, we introduce and study a new notion of functions in ideal topological spaces known as rarely generalized ideal (QUOTE )- continuous functions and investigate some of their properties. This type of continuity is a generalization of rarely QUOTE continuity. Key words: Rarely continuous functions, rarely QUOTE continuous...
Some iterative algorithms for solving regularized mixed quasi variational inequalities
November 2011
In this paper, we use the auxiliary principle technique coupled with the principle of iterative regularization to suggest and analyze some new iterative algorithms for solving mixed quasi variational inequalities. We also study the convergence criteria of these algorithms under some suitable and mild conditions. Several special cases are also considered. Results obtained in this paper continue to hold for...
Applicability of information and communication technologies (ICTs) in the administration of technical and vocational education and training (TVET) in a knowledge-based society
November 2011
Despite the belief that Information and Communication Technologies (ICTs) integration makes impact on the entire educational set up, studies directed to ICTs in schools have placed too much emphasis on the variables at class level neglecting other areas which ICTs are applied (for example, administration). In order to have distributed literature the present paper examines ICTs incorporation from the...
Quality of experience key metrics framework for network mobility user
November 2011
This paper presents a new framework of Quality of Experience (QoE) in mobile network. The user acceptance of a mobile application depends on the application’s perceived QoE. Currently, there is no comprehensive framework which integrates QoE and Quality of Service (QoS). The components of framework consist of the network mobility users, traffic classification matrixes and QoE key metric. The performance...
Analyzing the geometric accuracy of simple shaped reference object models created by terrestrial laser scanners
November 2011
There has been a tremendous amount of research on accuracy, precision and sensitivity of terrestrial laser scanning (TLS) technology from the day it has been first used till today. In this article, geometric and nominal measurements of 3-dimensional (3D) models gathered by scanning object surfaces using TLS were compared to the measurements of real reference models. For this purpose, in order to determine the...
Stresses in a spherical shell by using Lebesgue measure concept
November 2011
The problem of elastic-plastic transition stresses in a spherical shell under internal pressure has been solved by using Lebesgue measure temperature with the concept of generalized strain measure. It has been seen that the results are similar to those given by Hulsurkar (1963). Key words: Creep, compressibility, spherical shell, pressure, Lebesgue measure, transitional stress.
Aerodynamic study of greenhouses using computational fluid dynamics
November 2011
In the last decade, computational fluid dynamics (CFD) has been used to evaluate ventilation on agricultural facilities, mainly on greenhouses. However, there is lack of information on aerodynamic design on greenhouses. In this work, a CFD model has been used to evaluate wind forces over plastic greenhouse covers. Two different greenhouse geometries plane and round, were studied. The effect of wind velocity...
Power boosting of a modified natural gas engine
November 2011
This paper presents the experimental results on brake power enhancement of a modified natural gas engine. Conventional natural gas engine produces 15 to 20% less brake power than that of gasoline fired engine. This lacking in compressed natural gas (CNG) engine needs to be recovered through modifications and optimization of fuel injection system to provide complete gas combustion in the engine cylinder. A...
Scatter-difference discriminant locality preserving projections for palmprint recognition
November 2011
We develop an improved LPP method called scatter-difference discriminant locality preserving projections (SDLPP) for palmprint recognition. SDLPP has better classification capability which benefits from discriminant information obtained by maximizing the difference of between-class separability and within-class similarity. SDLPP avoids the singularity problem for the high-dimensional data matrix and can be...
The evaluation of stone column and jet grouting soil improvement with seismic refraction method: Example of Poti (Georgia) railway
November 2011
Studies of surface improvement have been carried out in Georgia-Poti in order to decrease surface deformations since surface conditions of railway line that comes from the harbor are too poor. Stone column and jet grouting methods were evaluated together as surface improvement methods. As engineering parameters on the surfaces which are applied, jet grouting are higher than the other method, it was decided to...
Numerical investigation on exterior reinforced concrete Beam-Column joint strengthened by composite fiber reinforced polymer (CFRP)
November 2011
In this paper, the effectiveness of composite fibre reinforced polymer (CFRP) layers for exterior beam-column connections was studied through a finite element model (FEM). ABAQUS environment (Hibbitt et al., 1988) was used for finite element analysis and a model based on a previous experimental test was made. The FEM results were validated by comparing with previous experimental test results. This model was...
The comparison of soil-pile interaction and fixed base support for integral prestressed concrete box-girder bridge
November 2011
This paper is to investigate the effect of soil-pile interaction for integral prestressed concrete box-girder bridge under low intensity earthquake. The soil-pile interaction was compared to fixed base support to see its effect. In this case study, one integral prestressed concrete box-girder bridge in Selangor, Malaysia had been chosen, that is, Kampung Sawah Bridge. To produce the low seismic loading, the...
Properties of high calcium wood ash and densified silica fume blended cement
November 2011
Recycling industrial waste material as construction material to minimize production of ordinary Portland cement could solve arising industrial waste management problems and increase environmental sustainability. This study focused on the incorporation of wood biomass ash in combination with silica fume in blended cement. In this study, physical and chemical properties of high calcium wood ash (HCWA) and...
Investigating biophysics and bioclimate effect on the health of tourists in Yazd Province using tourism climate index (TCI)
November 2011
The ever growing challenges of life in the recent centuries, the spread of different physical and mental diseases, and inactivity due to the development of technology made human to think about taking step for decreasing these problems using natural graces. One of these graces is travel to regions which have proper environmental conditions, especially good climatic conditions in the whole or part of the year....
Reflections on Cameroonian scientists in diaspora
November 2011
Cameroonian scientists living abroad send substantial financial contributions back to the home country, primarily for domestic usage. Although they enjoy better working conditions and are internationally acclaimed, strong nostalgic and professional feelings drive them to seek ways of improving science and technology through research and development in their home country. Principal stakeholders are called upon...
Steady and unsteady exact inverse solutions for the flow of a viscous fluid
November 2011
In this paper, inverse solutions are derived for the equations of two dimensional flows of a viscous incompressible fluid by assuming certain conditions on the stream function. The equation is coupled in terms of the stream function by eliminating the pressure between the component forms of the flow equation. The solutions for steady and unsteady cases are found by prescribing the vorticity...
Trace elements in Egyptian teeth
November 2011
Teeth are reported to be suitable indicators of heavy metals exposure from environment and nutritional status. Inductively coupled plasma mass spectrometry (ICP-MS) is used to compare the trace element content of children’s primary teeth and permanent adult teeth. Primary teeth were collected from 64 children and permanent teeth collected from 112 adult with age range of 40-60 years. The data were...
Chemistry of benzobispyrrole-derived squaraines
November 2011
In the search for a conducting polymers with narrow Energy Band-Gap (Eg), the research focus is centered on increasing the bandwidth of the Highest Occupied Molecular Orbitals (HOMO) or the Lowest Orbital Molecular Orbitals (LUMO) of a conducting polymers through the use of strong electron donor or strong electron acceptor, respectively. In this research, we considered the trend of change in...
Kinetic and thermodynamic of adsorption of methylene blue (MB) by CuFe2O4/rice bran composite
November 2011
The adsorption of methylene blue (MB) dye onto activated rice bran and CuFe2O4/rice bran (CRB) composite was investigated. Activated rice bran was prepared by treating with NaCl. The CuFe2O4/rice bran was prepared by chemical co-precipitation method. The adsorbents were characterized by XRD and SEM analyses. The adsorption of MB was strongly dependent on the pH (pH 12). The process was very fast initially and...
Study of Congo red photodegradation kinetic catalyzed by Zn1-XCuXS and Zn1-XNiXS nanoparticles
November 2011
A controlled co-precipitation method was used to prepare nanoparticles of zinc sulfide doped with Ni and/or Cu in the presence of mercaptoethanol as capping agent. The nanoparticles characterize via UV-visible spectra, atomic absorption spectrophotometer (AAS), X-ray powder diffraction (XRD) patterns and transmission electron microscope (TEM) image. The doping of Ni2+ and/or Cu2+ ions did not...
Analysis, characterization and some properties of polyacrylamide-Ni(II) complexes
November 2011
The complexation of polyarylamide (PAam) with Ni(II) metal ions at different concentrations was investigated. The metal complexes were characterized by fourier transform infrared spectroscopy (FTIR), UV-visible, differential scanning calorimeter (DSC) and atomic force microscope (AFM). FTIR spectroscopy was used to study the characteristic shifts of the absorbance bands of C=O and N-H2. UV-visible...
Using simulated annealing algorithm for optimization of quay cranes and automated guided vehicles scheduling
November 2011
Sea port container terminals play an important role in the national and regional economy. The integrated scheduling of handling equipment has been recently investigated in literature to improve the performance of the container terminals. In this paper, an integrated scheduling of quay cranes and automated guided vehicles is formulated as a mixed integer linear programming model. This model minimizes the...
Applications of support vector machines in oil refineries: A survey
November 2011
Support vector machine has been explored and many applications found within various research areas and application domains. Many support vector machine techniques have been specifically developed for certain application domains. This paper is an attempt to provide an overview on applications of support vector machines within the oil refineries to the professionals inside oil refineries, researchers and...
A peg free hand shape authentication scheme with radon transform
November 2011
The hand shape authentication has been widely used on the biometrics field with an extensive range of potential applications since it is the well-suited with respect to securityfacility. The aim of this paper is to improve the accuracy and robustness of the hand basedauthentication system. In this paper, a hand shape authentication with a fixed angle radon transformation and a centroid scheme is...
Optimized design of a cylinder under mechanical, magnetic and thermal loads as a sensor or actuator using a functionally graded piezomagnetic material
November 2011
The present paper addresses the thermo piezo magneto elastic behavior of a functionally graded piezomagnetic cylinder under thermal, magnetic and mechanical loads. All mechanical, thermal and magnetic properties are graded in the radial direction. The cylinder is subjected to inner pressure, thermal and magnetic loads. Temperature distribution can be obtained using solution of the heat transfer equation with...
Static analysis and design of sandwiched composite long-span portable beam
November 2011
Long-span portable beams are very important in military operations for the purpose of rapid construction and bridging system. Such structural element can also be utilized in disaster relief operations. In the early days, portable structure, such as military bridges were made from steel, causing the weight of the structure to be huge, and consequently, it will be costly to operate. To overcome these problems,...
Performance metrics for active contour models in image segmentation
November 2011
Image segmentation is one of the significant techniques in image processing to distinguish desired parts from its background for further analysis. It provides visual means for inspection of anatomical structure of human body, identification of disease, tracking of its development and input for surgical planning and simulation. Active contour models are regarded as promising and vigorously research model-based...
Epipremnum aureum: An environmental approach to reduce the impact of integral bridge scour
November 2011
The main objective of this study is to show that Epipremnum aureum could be used as an alternative approach to reduce the scour rate of an integral bridge. Integral bridges, also referred to as integral bent bridges or rigid-frame bridges, reduce initial construction costs and long-term maintenance expenses. Most bridge failures around the world occurred due to scour at the bridge foundations during...
Assessment of radioactivity level in bore hole-soil in Nigeria
November 2011
Radioactivity level in six soil samples from different boreholes in Zaria, Nigeria was assessed. The presence of 40K, 226Ra and 232Th were analyzed using γ -ray spectrometry with sodium iodide thallium, {NaI(Tl)} detector. Mean specific activity of 1020.4 ± 12.4, 123.1 ± 2.3 and 25.7 ± 2.0Bq/kg for 40K, 226Ra and 232Th, respectively were obtained....
Detection of internal fault in differential transformer protection based on fuzzy method
October 2011
Power transformers are vital and expensive components of electric power systems and it is necessary to protect them from internal faults. Differential protection is based on differential current. Occurrence of some phenomena such as inrush current, over excitation, saturation of current transformers and mismatch of current transformers cause the differential relay to operate incorrectly. In this paper, fuzzy logic is...
Effects of the incorporation of carbon spheres into nanostructured TiO2 ï¬lm for dye-sensitized solar cell
October 2011
Nanoporous TiO2 thin film electrodes were fabricated based on incorporating various amounts of carbon spheres into TiO2 paste followed by thermal treatment. The size of carbon spheres was prepared from 100 to 200 nm. The TiO2 electrodes modified with carbon spheres were characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and UV-visible spectrophotometer. The...
The period effects of intraperitoneal administration of different gold nanoparticle sizes on heart tissue of rats using fluorescence measurements: In vivo
October 2011
Despite many benefits of nanotechnology, some studies indicate that certain nanoparticle (NPs) may cause adverse effects because of their small size and unique properties. The aim of the present study was to elucidate the period effects of intraperitonealy administration of different gold nanoparticle sizes...
Bianchi type I magnetized cosmological model for barotropoic fluid distribution in Lyra geometry
October 2011
Bianchi type I cosmological model for barotropic fluid distribution with magnetic field in Lyra geometry is investigated. To get the deterministic solution in terms of comic time t, we have assumed that (eigenvalue of shear tensor ) is proportional to expansion (q). This leads to A = (BC)n, where A, B and C are metric potentials and n is a constant. We also assume that current is flowing along x-axis,...
Hyper production of glucoamylase by Aspergillus niger through the process of chemical mutagensis
October 2011
The main objective of this study was to produce glucoamylase under optimum conditions and to study the effect of chemical mutagenesis on Aspergillus niger for the production of glucoamylase. The maximum activity of glucoamylase for mutant A. niger (3.185 ± 0.020 IU/ml/min) and wild A. niger (2.085 ± 0.021 IU/ml/min) was recorded in the culture filtration after 96 h of solid...
Solving system of nonlinear boundary value problems by modified variational iteration method
October 2011
In this paper, we use the modified variational iteration method (MVIM) for solving the system of nonlinear boundary value problems associated with obstacle problems. This modified variational method is an elegant coupling of variational iteration method and homotopy perturbation method. We give the examples of second-order, third-order and fourth-order system of nonlinear boundary value problems to illustrate the...
A quarter-wave Y-shaped patch antenna with two unequal arms for wideband Ultra High Frequency Radio-frequency identification (UHF RFID) operations
October 2011
The radio-frequency identification (RFID) system which has become pervasive in the auto identification technology has been noticed to have several limitations. These limitations can be broadly divided into two major areas namely; application specific problems and general RFID problems. Application specific problems are common to the environment in which RFID tags are deployed such as metal, aqueous and irradiation...
Assessment of soil carbon storage in a tropical rehabilitated forest
October 2011
Decrease of tropical rainforests affects global warming and has attracted much attention. Afforestation programs have been suggested to mitigate this problem. But there is little research on the assessment of soil carbon (C) storage in a rehabilitated forest in tropical areas such as Malaysia. The objective of this study was to determine the C accumulation of a rehabilitated forest of different ages. Soil samples were...
Levels of some heavy metal concentration in fishes tissue of southern Caspian Sea
October 2011
The level of four heavy metals cadmium (Cd), copper (Cu), lead (Pb) and mercury (Hg) in flesh of Tinca tinca and Pelecus cultratus as well as water samples (90 each) collected from six different sites of southern Caspian Sea were evaluated. The results of this study revealed that the mean Cd, Cu, Pb and Hg levels in the water samples was significantly lower (P< 0.05) than the mean residuals levels...
Degradation studies of amines and alkanolamines during sour gas treatment process
October 2011
Aqueous solutions of alkanolamines are widely used for the removal of acidic gases such as H2S, CO2, COS and CS2 in the sour gas treatment process. In spite of the resistance of alkanolamines to chemical breakdown, plant and laboratory reports indicate that, on prolonged use, alkanolamines may be transformed into undesirable products from which the amines are not easily recovered. This phenomenon, commonly referred...
On fuzzify the notion of Grassmannianin fuzzy n-dimensional projective space
October 2011
In this paper the partitions of fuzzy points of fuzzy -dimensional vector space into fuzzy 3-dimensional vector spaces and fuzzy n-dimensional projective space λ′ from fuzzy-dimensional vector space λ on V for n > 2, into fuzzy projective planes are given. Here, we restrict ourselves to the case, that a subspace should necessarily have the same values in its...
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