June 2011
Analyzing the effects of airfoil camber on flutter suppression using Roger’s approximation technique and Timoshenko theory
In this paper, gas turbine blades are modeled analytically and numerically as Timoshenko beams by considering rotary inertia and shear deformation. The natural frequencies and relevant mode shapes are then determined by using this theory. On the other hand, the pressure distribution of the airfoil surfaces and the resulting aerodynamic forces are calculated with ‘ANSYS/FLOTRAN’ during one-cycle time marching...
June 2011
Effective factors to rural youths attitude to engagement in agriculture: A case study of Kohgiluye and Boyerahmad province
The main objective in this causal -correlation field research is to identify effective factors in rural youths attitude to agricultural occupation in Kohgiluye and Boyerahmad, Iran. Rural young people between 15 and 25 in Kohgiluye and Boyerahmad province are the subjects of this study. The method of data collection is cluster sampling. The technique of data collection is questionnaire. The specialty panel was used to...
June 2011
Fuzzy logic methodology and multiple regressions for residential real-estates valuation in urban areas
Valuation of real-estates is one of today’s most popular study fields. The valuation methods have changed due to life standard differences and locations of the countries. Nowadays, classical valuation methods are used for this aim in most countries. However, as a result of the rapid development in computer technologies, the artificial intelligence applications are now been used in the valuation of...
June 2011
Application of combined pinch and exergy analysis in retrofit of an olefin plant for energy conservation
In this paper, the modification of an olefin plant was performed and its refrigeration cycles were optimized using the exergy concept combined with a pinch-based approach. By the combined pinch and exergy analysis (CPEA), the present research corrected the temperature levels of the refrigeration cycles of an olefin plant to minimize exergy loss in the network and to economically and efficiently reduce shaft work demand...
June 2011
The use of analytical hierarchy process in priority rating of pavement maintenance
Decision makers often perform pavements repairs without considering the maintenance priority and without utilizing a systematic procedure. These kinds of arbitrary decisions do not usually guarantee the effectiveness of budget allocation.Rating approach in Analytical Hierarchy Process (AHP) is one of the most effective techniques in decision making process which was used to facilitate the prioritization of...
June 2011
Enhancement of Syzygium cumini (Indian jamun) active constituents by ultra-violent (UV) irradiation method
Syzgium cumini (Indian jamun) is a fruit consumed by all sections of people in India. It is cheaply available and has certain medicinal properties too. The study was aimed at enchancement of its active constituents without altering its pharmacological properties. Ultra-violent (UV) irradiation is used as it provides the enhancement and sterilization at the same time. The test batch having been irradiated with UV...
June 2011
Diagnostic value of serum and joint fluid anti-CCP (citrulline-containing peptide) antibody for rheumatoid arthritis and its relationship with other inflammatory indicators
To investigate the diagnostic sensitivity and specificity of serum and joint fluid citrulline-containing peptide (CCP), variant antibody (anti-CCP antibody) for active rheumatoid arthritis (RA) and to explore their relationship with other clinical inflammatory indicators, the levels of serum and joint fluid anti-CCP antibodies, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and rheumatoid factors (RF)...
June 2011
Integrating risk and value management using IRVM workshops: Case studies in infrastructure projects in UK
In infrastructure projects, even though both value management (VM) and risk management (RM) are widely accepted as tools for effective project management, they have never been synthetically practiced. To combine the two processes within a single project is practical and logical when both methods share the same resources. Both VM and RM are systematic...
June 2011
Adaptive neural fuzzy inference system (ANFIS) to determine possible relation between bricks porosity and weight losing
As in the architectural history, brick is still a common building material for building structures. This study offers a relation between the porosity of brick materials and their weight losing in acid treatment in order to evaluate brick features in restoration works sensitively. As for all matters, bricks get older with time by means of some causatives. Acids and acids derivatives may be the most important causatives...
June 2011
A new robust synchronization method between two different chaotic systems with disturbance
This paper proposes a new input-to-state stable (ISS) synchronization scheme for two different chaotic systems with disturbance. Based on linear matrix inequality (LMI) formulation, the ISS synchronization controller is presented to not only guarantee the exponential synchronization between two different chaotic systems, but also achieve the bounded synchronization error for any bounded disturbance. The ISS...
June 2011
Web based secure e-voting system with fingerprint authentication
The elections that are made by using traditional methods are no longer preferred because of the long period of preparation, fake voting, faulty voting, mistakes made in counting the votes, long period of counting and high cost of voting process. In order to avoid these disadvantages affecting directly the economy and policy of the country, it is obligatory to carry the available voting system to an electronic system. In...
June 2011
A note on the shrinkage techniques for estimating the mean
Searls (1964) proposed an improved estimator for the mean when the coefficient of variation is known. Thompson (1968) considered a method to reduce the mean square error (MSE) of the minimum variance unbiased linear estimator of the mean. The latter work obtained a new improved estimator for the mean. The purpose of the present note is to find a relationship between Searls and Thompson’s estimators using a...
June 2011
The effect of curing temperature and relative humidity on the strength development of Portland cement mortar
The aim of this study is to determine the effect of humidity on development of mechanical properties of Portland cement mortars under different curing regimes. The curing conditions were selected in order to simulate the average seasonal climatic conditions in various regions of Turkey. Conventional maturity formulas for Portland cement usually neglects the effect of humidity. However, especially under low relative...
June 2011
Interrelationship between antioxidant, C-reactive proteins, cotinine levels and periodontal diseases in smokers and non smokers
The purpose of this study was to evaluate, the interrelationship between serum total antioxidant capacity, C-reactive proteins, cotinine levels and periodontal diseases in smokers and non smokers. A total of 67 male patients were examined, 33 (49.2%) were smokers and 34 (50.7%) were non smokers. The amount of visible plaque score, gingival bleeding Index and community periodontal index were recorded. The...
June 2011
TLR9 agonist enhances lung cancer invasiveness by alternating miRNA expression profile
o investigate the role of miRNA expression profile in the increased invasiveness of non-small cell lung cancer (NSCLC) 95D cells upon TLR9 agonist stimulation, miRNA microarray assay was performed to detect the expression profile of miRNA in NSCLC 95D cells with or without treatment of CpG oligodeoxynucleotide (ODN). Real time PCR was performed in twenty NSCLC samples and corresponding normal tissues to verify the...
June 2011
Axial-flux permanent-magnet machine modeling, design, simulation and analysis
Axial-flux permanent-magnet machines today are important technology in many applications, where they are an alternative to radial-flux permanent-magnet machines. Reviewed here are technology status and advances/trends in axial-flux permanent-magnet machines, in aspects of construction, features, modeling, simulation, analysis, and design procedure. Potential applications and future trends are also...
June 2011
A Lagrange function for solving nonlinear optimization problem with constraints
This paper proposes a nonlinear Lagrangian for solving optimization problems with inequality constraints, and discusses properties of the function at the Karush-Kuhn-Tucker (KKT) points. The local convergence of the sequence of iterate points generated based on the proposed nonlinear Lagrangian is shown, when the penal parameter is larger than a threshold under a set of suitable conditions on...
June 2011
Radiosurgical treatment of trigeminal neuralgia: A follow-up experience over three years
To assess the safety and efficacy of radiosurgical treatment for trigeminal neuralgia (TN), we reviewed a total of 32 patients with refractory TN treated with gamma knife radiosurgery (GKRS) and followed-up for over 3 years. A median maximum dose of 80 Gy was delivered to the involved trigeminal nerve root entry zone. Treatment outcomes were assessed based on patients’ self-reports. A univariate analysis was used...
June 2011
Molecular study for detection of Marek´s disease virus (MDV) in southwest of Iran
Marek´s disease (MD), a lymphoproliferative disease of domestic chickens, is caused by an “alphaherpesvirus”. MD viruses cause clinical manifestations can be numerous and varied, including paralysis, skin lesions, atrophy of the thymus and bursa of Fabricius immunosuppression and high mortality. The aim of the present study was diagnosis of MDV (Marek´s disease virus) using PCR. In order to...
June 2011
Performance analysis of 5A's web robots
Human nature is greedy to follow less effort heuristics in seeking of scientific literature. Despite of manual literature investigation, web robots are vital tools that provide vision to gigantic passageway of WWW (World Wide Web) knowledge for information seekers. The reputation and implication of web robots need not be introduced further. Optimal searching approach requires efficient response and reliable services...
June 2011
An efficient job shop scheduling algorithm based on artificial bee colony
The job shop scheduling problem (JSSP) is an NP-hard problem of wide engineering and theoretical background. In this paper, a discrete artificial bee colony based memetic algorithm, named DABC, is proposed for solving JSSP. Firstly, to make artificial bee colony (ABC) suitable for solving JSSP, we present a food source as a discrete job permutation and use the discrete operation to...
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