Real-time algorithmic design for silent pass lip reading authentication system
April 2011
This paper proposes a new block-matching motion estimation algorithm for a lip reading user authentication system. The method described in this paper represents a sub-system of the Silent Pass project. Silent Pass is a lip reading password entry system and person authentication project for security applications. The aim is to provide a complete solution for secured access to ATMs and internet...
Experimental analysis of tropospheric scintillation in Northern Equatorial West Malaysia
April 2011
This paper compares predicted monthly scintillation means of nine scintillation prediction models to the monthly mean of the empirical data collected from the beacon receiver located at Universiti Sains Malaysia (USM). Tropospheric scintillation is a phenomenon where a rapid fluctuation of signal happens due to the turbulence at the atmosphere. The tropospheric scintillation models which use to compare to the...
An improved 2PL-HP based concurrency control algorithm in real time database
April 2011
In the real time database management systems the mechanism of concurrency control 2PL-high priority, by applying a sacrificing approach of the low-priority transaction during the competition with high priority transaction, not only waste the resources of the system but also decrease the system efficiency due to the increase of the transaction failure because of miss deadline. The survey is focusing on the...
Effect of addition of Asiatic clam (Corbicula fluminea) shell in incense material on mitigating air pollutants
April 2011
Particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs) emissions of burning incense have been investigated on the quality of surrounding air. However, thereduction of PM and PAHs from burning incense has received little attention. In the present study, two types of incense were made in the laboratory. Five to thirty percent of Asiatic Clam Shell (ACS) was added to Liao...
Link aware call admission and packet scheduling for best effort and UGS traffics in mobile WiMAX
April 2011
Call admission control and packet scheduling are two important issues that are considered in ensuring quality of service (QoS) requirement in a wireless network. Due to robust wireless channel and heterogeneous behavior of traffics, there is a need to consider QoS parameters in admitting and scheduling packets in wireless network such as WiMAX. To ensure quality of service requirements are achieved, a...
Some numerical methods for solving Burgers equation
April 2011
In this paper, we construct and suggest some new, efficient, and accurate numerical algorithms based on the spectral methods for solving the Burgers’ equation. Spectral methods using Chebyshev and Legendre polynomials are developed. Test problems are used to validate these methods that are found to be accurate and efficient. Also, the results show that despite the fact that Chebyshev...
Discrimination between oil spill and look-alike using fractal dimension algorithm from RADARSAT-1 SAR and AIRSAR/POLSAR data
April 2011
This work utilizes a modification of the formula of the fractal box counting dimension in which a convoluted line of slick embedded in SAR data was divided into small boxes. The method is based on the utilization of the probability distribution formula in the fractal box count. The purpose of this method is to use it for the discrimination of oil spill areas from the surrounding features, for example,...
The dynamics of slopes affected by avalanches in Piatra Craiului Massif – Southern Carpathians
April 2011
This paper aims to present the results of a complex analysis of the morphodynamics of slopes affected by avalanches in Piatra Craiului Massif. The study of avalanches is a current issue of dynamic geomorphology and very little is discussed in the Romanian geographical literature. Although the presence of avalanches has been reported in the Carpathian area for centuries, geomorphological analyses...
Geomorphology and climate conditions that determine sedimentation in Mamaia bay
April 2011
The beach evolving in the Mamaia sea area represents a recent geological deposit, which was built mainly from the contribution of north-south oriented long shore terrigenous sediments, but also from biogenic sediments, which have been transported towards the beach, mostly through the shore transverse transport (onshore-offshore). Between 1977 and 1987, several project proposals for the protection of the...
Climate change impacts: Prioritizing mechanism and needs for future Malaysian agriculture
April 2011
This paper empirically explored climate change, its related impact on rice agriculture and proper policy- related strategies and mechanism. Our current assessment provided the expected climate change impact based on observational records of inter-annual variability in precipitation and warming climatic factors up to the year 2080. In this study, an analysis of the impact due to climate change and...
Symmetry reductions and computational dynamics of a nonlinear reaction-diffusion problem with variable thermal conductivity
April 2011
In this paper, the nonlinear model for the reaction-diffusion problem with variable thermal conductivity is investigated. It is assumed that the model source term is an arbitrary function of temperature. Classical symmetry is employed to analyze all forms of the source term for which the governing equation admits extra point symmetries. A number of symmetries are obtained and some reductions are performed....
A semantic role-based methodology for knowledge acquisition from Spanish documents
April 2011
The Semantic Web vision grounds on providing the current Web with structural knowledge that can be understandable by the machines without the intervention of human beings. Given that ontologies are a backbone technology for the Semantic Web, different mechanisms and methodologies for designing and building ontologies have been proposed. The need for overcoming the bottleneck provoked by the manual...
New activation functions for complex-valued neural network
April 2011
This paper presents a new types of complex-valued sigmoid function for a fully multi-layered complex-valued neural network (CVNN). By using the concept of the subordination between analytic functions in open disc, we able to study the reducibility of CVNN. A real-world problem example has been used as a classifier. The simulations results reveal that the proposed fully complex-valued network,...
Power control in wireless ad hoc networks for energy efficient routing with end-to-end packet delay minimization
April 2011
Wireless ad hoc networks are the networks with no infrastructure and that have limited battery. It is necessary that the nodes in the network use their energies efficiently. In this study, on-demand and position based algorithms that minimize end-to-end packet delays and that use their node energies most effectively are proposed. The proposed algorithm helps to transport packets to their destinations by...
Intramolecular proton transfer of 2-[(2,4-dimethylphenyl)iminomethyl]-3,5-dimethoxyphenol Schiff-base ligand: A density functional theory (DFT) study
April 2011
The title Schiff-base ligand could exist as two enol-imino (E) and keto-enamine (K) tautomers. Here, employing density functional theory, and handling the solvent effects with the polarizable continuum model (PCM), the structural parameters, energetic behavior, natural bond orbital analysis, as well as tautomerization mechanism of the E and K tautomers are investigated. The percentage of...
Occurrence of carbon nanotube from banana peel activated carbon mixed with mineral oil
April 2011
Banana peel activated carbon and 2% mineral oil mixture was used as a precursor for carbon nanotube and nanocarbon. The process of synthesis involves pyrolysis of precursors at 1000 to 1200°C in a closed stainless-steel tube (f 12.7 mm, 1.0 mm inches thick and lengths = 200 mm). The final products were analyzed using SEM, TEM and XRD. SEM and TEM investigation showed that the products consisted of a...
A new iterative method for solving absolute value equations
April 2011
In this paper, we suggest and analyze a new iterative method for solving the absolute value equations where is symmetric matrix, and is unknown. This method can be viewed as a modification of Gauss-Seidel method for solving the absolute value equations. We also discuss the convergence of the proposed method under suitable conditions. Several examples are given to illustrate the...
A new method for solving a system of fifth-order obstacle boundary value problems
April 2011
In this paper, we use the variation of parameters method for solving a system of fifth-order boundary value problems associated with obstacle problems. The results are compared with the exact solution over the whole domain and error estimates are calculated. An example is given to illustrate the efficiency and implementation of the variation of parameters method. Key words: Variation of...
The experimental parameters optimization approach using a learning genetic algorithm
April 2011
A learning genetic algorithm is proposed to solve the experimental parameters optimization problem. This method can not only enhance the efficiency of genetic algorithm through the pre-given user experience, but also improve the efficiency of genetic algorithm via learning the knowledge obtained from the optimization process. Experimental results suggest that the learning genetic algorithm can effectively...
Fuzzy ellipsoidal projective plane model
April 2011
A definition of fuzzy plane projective geometry (FPPG) and fuzzy Desargues' proposition are given in Gupta and Ray (1993). In this work, we give fuzzy ellipsoidal projective plane model (FEPP) and then show that fuzzy Pappus theorem is satisfied in this fuzzy ellipsoidal projective plane model. Key words: Fuzzy sets (fuzzy) projective planes, fuzzy point, fuzzy...
Optimization of software engineering resources using improved genetic algorithm
April 2011
The arrangement of the human and material resources is an important issue in the software development process. To effectively solve the distribution optimization of software engineering resources, an improved genetic algorithm with heuristic feedback is constructed in this work. The proposed approach employs the executive matrix as chromosome which covers the matrix coding chromosome planning and allocation...
A numeric-analytic method for approximating three-species food chain models
April 2011
This paper investigates the accuracy of the differential transformation method (DTM) for solving the three-species food chain models which is described as three-dimensional system of ODES with quadratic and rational nonlinearities. Numerical results are compared to those obtained by the fourth-order Runge-Kutta method to illustrate the preciseness and effectiveness of the proposed method. The direct...
Isomorphism theorems for fuzzy submodules of gamma modules
April 2011
We generalize the Davvaz’s paper to the fuzzy submodules of gamma modules and give some characterizations of fuzzy gamma modules. Key words: Fuzzy ideal, fuzzy submodule, ring, gamma modules (-Module), fuzzy isomorphism theorems.
Distribution of wind direction recorded at maximum wind speed: A case study of Malaysian wind data for 2005
April 2011
In this study, four types of circular probability distribution, namely circular uniform distribution, von Mises distribution, wrapped-normal distribution and wrapped-Cauchy distribution are considered in search of a circular probability distribution provides the best fit for Malaysian wind direction data recorded at maximum speed. The data collected were classified as annual, northeast monsoon and...
Optimal control of inventory-production systems with gumbel distributed deterioration
April 2011
This paper is concerned with the development of an inventory-production model for a special class of generalized extreme value, that is, gumbel distributed deterioration items. The production system with inventory-level-dependent demand is considered and Pontryagin maximum principle is used to determine the optimal control, which is the production rate that minimizes the optimal control model, while...
Gifted students’ opinions about “earthquake": A qualitative study
April 2011
This study was carried out to put forth gifted students’ perspectives towards “earthquake” concept. A total of 156 primary school students participated in the research in Ankara BÄ°LSEM schools in 2010-2011 academic year. The data of the research was gathered by completing “The earthquake means….. “, or I consider earthquake as …….” statement. In the...
Designing buyer and seller intelligent agents in an electronic market based on emergency decision making
March 2011
In the recent decade, big suppliers use internet sites for introducing and selling their products. These companies decided to carry out their ordering and reservation operations through these internet sites because they were successful and were welcomed by many internet users. In this article, a model of electronic market for buyer and seller intelligent agents is recommended which introduces an emotional...
Hill development by Earth architecture
March 2011
The aim of this paper is to find better knowledge for earth architecture’s applications as a sustainable architecture. Earth architecture is a research devoted to the architectural uses in shaping the environment of human kind related to human ecology. Earth architecture includes vernacular and historical architecture drawn from many cultures and periods in different countries. Hills to make artificial...
Energy, exergy and economic analysis of an annealing furnace
March 2011
Energy efficiency improvements as well as energy savings are the major concern in most of the developed countries all over the world. Furnace is the most common and important part in metal industries. The useful concept of energy and exergy utilization is analyzed to investigate the energy and exergy efficiencies, energy and exergy losses, energy savings and cost benefit of an annealing furnace. The...
3-D numerical analysis of orthogonal cutting process via mesh-free method
March 2011
In this paper, the applications of mesh-free SPH (Smoothed Particle Hydrodynamics) methodology to the simulation and analysis of 3-D hard machining process is presented. A Langrangian SPH based model is carried out using the Ls-Dyna software. Classical Lagrangian, Eulerian and ALE methods such as finite element methods (FEM) cannot resolve the large distortions very well. Conventional finite element analysis...
Adaptive fuzzy control for earthquake-excited buildings with lead rubber bearing isolation
March 2011
This study examines the feasibility of applying adaptive fuzzy sliding mode control (AFSMC) strategies to reduce the dynamic responses of buildings constructed using a lead rubber bearing (LRB) isolation hybrid protective system. Recently developed control devices for civil engineering structures, including hybrid systems and semi-active systems, have been found to have inherent nonlinear properties. It is thus...
Development of a composite autofocus method for tissue slides using a line scan CCD camera
March 2011
This study describes the application of a composite autofocus method, which combines full-trip auto focusing (AF) technology with extended depth of field (EDOF) technology to examine tissue slides, using a line scan CCD camera. We investigated several criteria that serve as appropriate sharpness evaluation methods, for histological images. Examples of such methods include the use of an edge detection filter...
Artificial neural network technique for rainfall forecasting applied to Alexandria, Egypt
March 2011
Two rainfall prediction models were developed and implemented in Alexandria, Egypt. These models are Artificial Neural Network ANN model and Multi Regression MLR model. A Feed Forward Neural Network FFNN model was developed and implemented to predict the rainfall on yearly and monthly basis. In order to evaluate the incomes of both models, statistical parameters were used to make the comparison between the...
Comparison of variance component estimation methods for horizontal control networks
March 2011
In this study, some well-known variance component estimation methods, called conventional, Helmert, MINQUE, AUE, and Förstner, developed to determine the stochastic model, for the adjustment of geodetic networks, have been compared. In doing so, concrete deciding criteria, using statistical tests, have been defined and the determination of superior model has been studied. For the validation of the...
Using feed-forward back propagation (FFBP) neural networks for compressive strength prediction of lightweight concrete made with different percentage of scoria instead of sand
March 2011
Artificial neural networks (ANNs) are the result of academic investigations that use mathematical formulations to model nervous system operations. Neural networks (NNs) represent a meaningfully different approach to using computers in the workplace, and have been used to recognize patterns and relationships in data. In this paper, the compressive strength (CS) of lightweight material with 0, 20, 30, and 50%...
An efficient inverter circuit design for driving the ultrasonic welding transducer
March 2011
This paper describes a robust circuit design using matching technology to drive the ultrasonic welding transducer with zero voltage switching. A new feedback control method to track the optimal working frequency was practically implemented by a FPGA chip. All analytic results exhibited that the newly designed class-E inverter circuit can be effectively and stably applied on the high power ultrasound welding...
Bahar: A new hybrid of GA and auction method for dynamic bandwidth allocation based on EPON networks
March 2011
One of the major challenges in the Ethernet Passive Optical Networks (EPON) technology in providing quality of service for the network users is the optimum and dynamic allocation of bandwidth that has been requested by the users. In this paper, a hybrid method is proposed that is based on the genetic algorithm and the auction theory where the requested bandwidth is calculated precisely with the genetic...
Comparison of time series methods and neural network in energy cost forecasting
March 2011
Different method sets for energy cost, based on neural networks and composition networks, were used for several kinds of time series models and methods based on intelligence system. In this paper, performance and result of several kinds of time series models in energy in synchronic energy markets, were first studied; then in continuance, was used for forecasting and in Spain and California during one...
Effects of geological and hydrological factors on the creation of flooding in Kozlu, Zonguldak, NW Turkey
March 2011
The settlement of Kozlu in Zonguldak province located in the Western Black Sea Region of Turkey has experienced flood disasters since 1955 which has caused life losses and property damages. The study area comprises, order of age from the oldest to the youngest, Kozlu, Karadon and Inalti formations, Incigez Detritic member and alluvium. The fact that the Kozlu and Karadon formations are hydrogeologically...
Neural network model and geographic grouping for risk assessment of debris flow
March 2011
There were 1500 rivers and streams in Taiwan with potential sources of debris flows. Debris flows often occurred after earthquakes and heavy rains, leading to severe damage to human lives and properties. This study aimed to develop an accurate neural network-based risk assessment model of debris flows. The back propagation network was adopted because of its supervised training nature and of its ability to...
A depth-averaged two-dimensional model for flow around permeable pile groins
March 2011
Results of a comparison between in-situ experiment and numerical modelling for flow around permeable pile groins were presented. The groin sets consisted of porous-fence piles with a diameter of 1.0 m and were conducted in the Laonong River, Southern Taiwan. A numerical model that solved depth-averaged RANS (Reynolds-averaged Navier-Stokes equations) and the continuity equation was...
Effect of temperature treatment on the optical characterization of ZnO-Bi2O3-TiO2 varistor ceramics
March 2011
The optical band-gap energy (Eg) is an important feature of semiconductors which determines their applications in optoelectronics. So, it is necessary to investigate the electronic states of ceramic ZnO and effect of doped impurities at different processing conditions. Eg of the ceramic ZnO + xBi2O3 + xTiO2 where x = 0.5 mol%, was determined using UV-Vis...
Finite element analysis of nonlinear structures with Newmark method
March 2011
The Newmark method is an explicit method and the most important aspects of this subfamily are the possibility of unconditional stability for nonlinear systems and second-order accuracy. The possibility of unconditional stability and second-order accuracy allows the use of a large time step, and the explicitness of each time step involves no iterative procedure. To evaluate the numerical properties of the...
Elastic moduli prediction and correlation in soda lime silicate glasses containing ZnO
March 2011
Soda lime silicate glass (SLS) containing zinc oxide (ZnO) was prepared and its elastic properties through the principle of Rocherulle’s model were investigated. Different density, dissociation energy and elastic moduli were calculated theoretically for each glass samples containing different weight percentage of ZnO and these values were compared with experimental results by using ultrasonic pulse echo...
Physics of flow instability and turbulent transition in shear flows
March 2011
Turbulent transition is of great significance in modern sciences and industrial applications. The physics of flow instability and turbulent transition in shear flows is studied by analyzing the energy variation of fluid particles under the interaction of base flow with a disturbance. A simple model derived from physics is proposed to show that the flow instability under...
Schwarzschild-like solution for ellipsoidal celestial objects
March 2011
Schwarzschild solution is the simplest solution of Einstein's field equations, but it has not been able to be describe any non-spherical in shape as in the real are existing. Many objects like stars and/or galaxies are in the form of ellipsoidal form and consequently, the gravitational lines around the objects are different in comparison with spherical form. In this paper a line element has been...
Development and evaluation of multimedia reciprocal representation instructional materials
March 2011
In Taiwan, e-learning systems have been widely used in universities and educational institutions, but many related studies pointed out that teaching activity and strategies have not been integrated into most of the curriculum. These systems made students not to have enough motivation to learn with the e-learning and as such, it affected the learning performance. Therefore, this study focused on incorporating...
SEAN: Multi-ontology semantic annotation for highly accurate closed domains
March 2011
Semantic annotation has gained momentum with the emergence of the current user-generated content paradigm on the Web. The ever-growing quantity of collaborative data sources has resulted in the requirement for efficient approaches to create, integrate and retrieve information more efficiently in an environment where the users ask for accurate information. The main research challenge of the current work is...
Investigating a round robin strategy over multi algorithms in optimizing the quality of university course timetables
March 2011
This paper tackles university course timetabling problems (UCTP) to find a (near) optimal solution (timetable) while satisfying hard constraints (essential requirements) and minimizing as much as possible the violations of the soft constrains (desirable requirements). In this study, we apply three algorithms, that is, Great Deluge, Simulated Annealing and Hill Climbing where the Round Robin algorithm is used...
Synthesis, characterization and cytotoxic assay on human liver carcinoma cells (HepG2) of organodistannoxane dimer complexes derived from alkylaminobenzoic acids
March 2011
A total number of five organodistannoxane dimer complexes derivative of alkylaminobenzoic acids have been successfully synthesized and characterized quantitatively and qualitatively. Results of the infrared spectroscopy of the acids and complexes showed that the coordination took place via oxygen atoms from the carboxylate group. This indicated that the carboxylate anions acted as mono- and bidentate ligand....
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