bluuebunny/crossref_metadata_2025 huggingface dataset:
Estimation of the Randomized Complete Block Design Parameters with Fuzzy Goal Programming
Authors: Kula Kamile , Apaydin Ayşen
Published: June 2016

Since goal programming was introduced by Charnes, Cooper and Ferguson (1955), goal programming has been widely studied and applied in various areas. Parameter estimation is quite important in many areas. Recently, many researches have been studied in fuzzy estimation. In this study, fuzzy goal programming was proposed by Hannan (1981) adapted to estimation of randomized complete block design parameters. Suggested fuzzy goal programming is used for estimation of randomized complete block design parameters. Two numerical examples are used to illustrate the applicability of the suggested method. Then, the results obtained from classical method and suggested methods have been compared.
Analytical Regularization Method for Rigorous Diffraction Analysis of Knife Edges for TM Waves
Authors: Yiğit Hüseyin , Dikmen Fatih
Published: June 2016

A direct full-wave solution via the Analytical Regularization Method (ARM) is proposed for the diffraction problem concerning knife edges under TM wave excitation. This problem is reduced to solving an infinite linear algebraic equation system of the second kind which, in principle, can be solved with arbitrary predetermined accuracy via a truncation procedure.
On Constitutive Equations for Anisotropic Nonlinearly Piezoelectric Materials
Authors: Usal Melek , Yünlü Lokman
Published: June 2016

In this paper, the elastic-piezoelectric continuum has been investigated theoretically and its non-linear constitutive equations have been defined. The theory is formulated in the context of continuum electrodynamics. The solid medium is assumed to be non-linear, homogeneous, compressible and isothermal, has elastic and piezoelectric anisotropy. Basic principles of modern continuum mechanics and balance equations of electrostatic have provided guidance and have been determining in the process of this study. From the formulation belonging to the constitutive equations, it has been observed that the symmetric stress and polarization have been derived from a scalar-valued thermodynamic potential defined in calculations. As a result of thermodynamic constraints, it has been determined that the free energy function is dependent on a symmetric tensor and a vector. The free energy function has been represented by a power series expansion and the type and number of terms taken into consideration in this series expansion has determined the non-linearity of the medium. Finally, the quasi-linear constitutive equations are substituted in the balance equations to obtain the field equations.
Properties of Symmetric Uclear Matter with Skyrme Iteractios
Authors: Biçer Ahmet , Manisa Kaan
Published: June 2016

Symmetric nuclear matter properties such as binding energy, pressure, saturation density and incompressibility are investigated in the Skyrme Hartree-Fock model. A new set of Skyrme parameters for symmetric nuclear matter is obtained by the fitting of Variational Monte Carlo method results to density-dependent Skyrme type energy. The results obtained are in good agreement with those obtained with selected Skyrme parameter sets in the literature.
A Method for Discriminating Efficient Candidates with Ranked Voting Data by Common Weights
Authors: Jahanshahloo Gholamreza , Lotfi Farhad , Khanmohammadi Masomeh , Kazemimanesh Mansoureh
Published: June 2016

Ranked voting data arise when voters select and rank more than one candidate with an order of preference. Cook et al.[1] introduced data envelopment analysis (DEA) to analyze ranked voting data. Obata et al.[2] proposed a new method that did not use information obtained from inefficient candidates to discriminate efficient candidates. Liu et al.[3] ranked efficient DMUs on the DEA frontier with common weights. They proposed a methodology to determine one common set of weights for the performance indices of all DMUs. Then, these DMUs were ranked according to the efficiency score weighted by the common set of weights. In this paper, we use one common set of weights for ranked voting data.
Discrimination Ability of Time-Domain Features and Rules for Arrhythmia Classification
Authors: Arıkan Umut , Gürgen Fikret
Published: June 2016

This study investigates relevant diagnosis information for arrhythmia classification from previously collected cardiac data. Discrimination ability of various time-domain attributes and rules were discussed for automatic diagnosis of arrythmia using electrocardiogram (ECG) signals. Naive Bayes, C4.5, multilayer perceptron (MLP) and support vector machines (SVM) algorithms were tested on a number of the input features selected by correlative feature selection (CFS) method. Hot Spot algorithm was employed to extract a number of rules that is useful in diagnosing cardiac problems from ECG signal. 257 time domain features of 452 cases from a cardiac arrhythmia database [1] were used. Various testing configurations and performance measures such as accuracy, TP and FP rates, precision, recall and AUC were considered. The discrimination ability of selected-features and the extracted-rules were demonstrated.
A Study on Fuzzy Robust Regression and Its Application to Insurance
Authors: Kula Kamile , Tank Fatih , Dalkılıç Türkan
Published: June 2016

In this study, a fuzzy robust regression method is proposed to construct a model that describes the relation between dependent and independent variables in insurance. Fuzzy robust regression suggested as an alternative to not only ordinary least squares but also classical robust regression. Fuzzy robust regression is finally investigated and discussed by an example with real data arose from a well-known insurance company in Turkey.
On Generalized Complementarity Problem
Authors: Siddiqi A. , Ahmad R.
Published: June 2016

In this paper, we extend generalized implicit complementarity problem and study the existence of the solution of this new problem using variational inequality technique. An algorithm is given to find the approximate solution and prove that this approximate solution converges to the exact solution of the problem. We also study the sensitivity analysis for generalized variational inequality. Several special cases are also discussed.
Global Nonexistence of Solutions of the Vibrations of a Riser
Authors: Bayrak Vural , Can Mehmet
Published: June 2016

In this work, the nonexistence of the global solutions of a quasilinear hyperbolic boundary value problem with dissipative term in the equation is considered. In one space dimension this initial value problem models the behavior of a riser vibrating due to the effects of waves and current. The nonexistence proof is achieved by the use of the so called concavity method. In this method one writes down a functional which represents the norm of the solution in some sense. Then it is proved that this functional satisfies the hypotheses of the concavity lemma. Hence one concludes that one cannot continue the solution for all time by showing that this functional and hence the norm of the solution, would otherwise blow up in finite time.
Analysis of a Bulk-Service Queueing-System Subject to Interruptions
Authors: Chandramouli A.
Published: June 2016

The present study depicts the behavior of mean queue length on failure service parameters and shows that the mean queue length is proportional to failure parameter while it varies inversely with repair parameters.
An Investigation of Deep Drawing of Low Carbon Steel Sheets and Applications in Artificial Neural Networks
Authors: Meriç Cevdet , Köksal N. , Karlık Bekir
Published: June 2016

In this study, the deep drawability of SAE 6114, being a low carbon steel, was investigated. The materials with thickness varying from 0.67 mm to 2 mm were subjected to tensile tests and then R (average vertical anisotropy coefficient) and n (stain hardening exponent) values were determined. At the same time, h (the height of the cup) and F (the reaction force) values of the materials were found by subjecting them to Erichsen test A sheet with 2 mm thickness was cold rolled in 6 different deformation ratios and the tests were applied to it Results obtained from the tests were compared with each other and ANN application was performed for these results. It was proved that, there was an ANN solution to obtain new values of % deformation rate and thickness properties of deep drawing of low carbon steel sheets which were found by experiment The obtained values satisfied our estimation.
The Development of Euler Hyperbola in Heavy Bars
Authors: Özdamar Aydoğan
Published: June 2016

Euler [1] discovered the critical buckling force of the bars under an axial load. Euler, however ignored bar's own weight in his calculations. He drew the line diagram of critical strength vs bars slenderness ratio, the so called Euler-Hyperbole. The goal of this paper is to extend Euler-Hyperbole to heavy bars. Furthermore, factors which have effects on critical buckling forces will be analysed. This study may lead to economical gain, since materials are fully utiliesed.
Refractive Index Change Produced by the Electro-Optical Effect in LiTaO3
Authors: Kurt M. Zeki
Published: June 2016

Electro-optically induced refractive-index change in regular and reverse-poled LiTaO3 has been calculated. Specifically we determine how index change depends on electric field magnitude and direction for y-propagating extra-ordinary modes. To accomplish this, changes in index-ellipsoid shape and orientation are found by the use of a numerical eigenvalue procedure to diagonalize the impermeability tensor; then the refractive index is calculated by the use of a vector reference-frame transformation and a small perturbation approximation. A general formula is inferred from calculations for specific field directions. Electro-optic coefficienls for reserve-poled LiTaO3 are obtained by application of a tensor reference-frame transloilnation to those of LiTaO3.
Peiffer Commutators by Using GAP Package
Authors: Mutlu Ali
Published: June 2016

We describe Peiffer commutators within the Moore complex NG of a simplicial group G. The calculation of the Peiffer commutators is made by using GAP program.
A Perturbated Algorithm for Generalized Nonlinear Quasi-Variational Inclusions
Authors: Siddiqi A.H. , Ahmad Rais , Husain S.
Published: June 2016

In this paper, a perturbed iterative method for solving a generalized nonlinear quasi-variational inclusions, is presented and a convergence result which generalizes some known results in this field, is given.
Calculation of Temperature Distribution on a Crown Tooth by Using Three-Dimensional Finite Element Method
Authors: Aykul H. , Toparlı M. , Köksal N.
Published: June 2016

The finite element was used to temperature changes with time to Au-AgPd alloy and porcelain crowns in three dimensional models of average maxillary second premolar. Temperature changes some critical nodes were calculated as a result of hot/cold liquid. Calculation programs were prepared by authors using FORTRAN 77. The tooth was assumed isotropic, homogenous, elastic and unsymmetric.
A Dynamic Approach for Optimization of Open Pit Mine Invesments with Capital Budget
Authors: Erarslan Kaan , Çelebi Neş’e
Published: June 2016

Mining investments require huge capitals. Since mining has an economical aspect, a reasonable profit is expected at the end of investment. In other words, a mining investment is reasonable only if it brings a desirable income. In fact. The objective of mine investment should be the optimum profit, which means the maximum profit that can be handled under certain technical conditions and constraints. In this study, dynamic programming procedures have been investigated whether they can be applied on mining investments having budget constraint. A general and brief review of dynamic programming technique and the theoretical base of capital budget problem have been presented. Two examples have been employed for the applications; first is selecting optimal mine investment alternative(s) through a group of choices and second is selection of optimum excavation-machine alternative(s) providing maximum excavation capacity. By this way, applicability of dynamic programming has been examined on both the whole system and a sub-system. The objective function and recursion functions have been defined and applied on numerical cases. The results have revealed the validity of the approach for optimization of mining investments with budget constraint.
Detection of the Starting of the Newly Applied Mass for Successive Weighing
Authors: Danacı Mustafa , Kalınlı Adem
Published: June 2016

In this study, new approaches are proposed over a range of conditions with unknown loading time to determine the initial conditions and identify the explicit model parameters of successive weighing system in the early part of the transient response. When a new mass is applied to the platform, the starting of the newly applied mass is detected by modelling error approach and then predicted automatically using the Non-Linear Regression (NLR) method and the detection process is repeated for successive continuous weighing. Simulation results are provided to indicate the improvement in both speed and accuracy of the model and the mass prediction.
On the Theory of Generalized Ballistical Problem for Nonlinear Abstract Differential Equations
Authors: Shamilov A.
Published: June 2016

In the present work, we have obtained principally new results for solvability and non-solvability of one problem for second order abstract differential equations with the main linear part. The method, based on solving corresponding Dirichlet problem, lies on the basis of present investigations. In section 1, we present the formulation of the basic problem and reduce the short review of same investigations related to given problems. In section 2, we show the roll of the corresponding subsidiary boundary value problem for linear equation in the study of the basic problem. In section 3, we present the theorems of existence and nonexistence of the solution of the ballistical problem for nonlinear abstract differential equations with the linear part, in the case when the initial and the latter points of the desired solutions are not coinciding. Also we can prove the theorems of solvabilitv and non-solvability of considering problem in the case, when the Initial and the latter points desired trajectory are coinciding.
The Sensitivity of Halo Nuclei to the Nuclear Radius
Authors: Okuducu Şeref , Tanır Güneş , Şarer Başar
Published: June 2016

β-decay provides important information about the structure of halo nuclei. Because of the root-mean-square radius (Rrms) of the neutron halo distribution is very large, the phase-space factor for halo nuclei must be more sensitively depended on the radius. In this work the sensitivity of the nuclear radius to the phase-space factor was investigated for some halo nuclei and the improvement for phas-space factor for halo nuclei was reported. The results wrere applied to calculate the logft-values for the halo nuclei(6He, 8He, 11Be, 14Be, 9Li, 11Li). The modification proposed shows reasonable results for many casesn/a
Optimal Trajectory Determination for Sagitally Symmetric Manual Lifting Tasks
Authors: Gundogdu Omer , Anderson Kurt
Published: June 2016

A two dimensional, multi-link sagittally symmetric whole-body model was developed to simulate an optimal trajectory for manual material lifting. Non-linear optimal control techniques and genetic algorithms were utilized in the simulations to explore practical lifting patterns. The simulation results were then compared with the experimental data.
The IBM-1 Study for Some Ce Isotopes
Authors: İnan Sait , Yörük Abdülkadir , Küçükbursa Atalay
Published: June 2016

The structure of even-even Ce isotopes with neutron number 72≤N≤76 are studied within the framework of the Interacting Boson Modei (IBM-l). The excitation energies and the B(E2) values of the above nuclei are calculated. It is found that the agreements between the calculated and observed data are much better in the model of the effective boson consideration.
A Comparison of Different Versions of the Method of Multiple Scales for an Arbitrary Model of Odd Nonlinearities
Authors: Pakdemirli Mehmet , Boyacı Hakan
Published: June 2016

A general model of cubic and fifth order nonlinearities is considered. The linear part as well as the nonlinearities are expressed in terms of arbitrary operators. Two different versions of the method of multiple scales are used in constructing the general transient and steady-state solutions of the model: Modified Rahman-Burton method and the Reconstitution method. It is found that the usual ordering of reconstitution can be used, if at higher orders of approximation, the time scale corresponding to that order is considered and all other time derivatives are ignored. Results are applied to an example and steady-state solutions are compared numerically for both methods.
Preliminary Group Classification of y" = f(x)y2
Authors: Soh C. , Mahhomed F.
Published: June 2016

Direct group classification of y" = f(x)y2 fails because the classifying condition is a third-order non-linear integro-differential equation for which a closed form solution is unknown. This fact prevents a complete group classification. In this paper we resort to the method of preliminary group classification in order to perform a partial group classification of the ordinary differential equation (ode) mentioned above and obtain new classes that admit symmetry.
Building Evolution Friendliness into Cellular Automation Dynamics: The Cytomatrix Neuron Model
Authors: Ugur Ahmet , Conrad Michael
Published: June 2016

The cytomatrix neuron is a softened cellular automaton, roughly motivated by interactions that could occur in a molecular or cellular complex. Subcells exert graded influences on each other and provide a medium for the integration of input signals in space and time. A readout element located in a suitably activated subcell triggers an output. The neurons are trained through variation-selection learning that acts on multiple dynamical parameters. Extensive experimentation with the model shows that the dynamics can be molded to yield different structures of generalization. Dimensionality can be increased by increasing the number of dynamical parameters open to variation and selection. Learning algorithms that vary the greatest number of parameters were found to have a greater variability in the structures of generalization and to yield higher performance values and learning rates. The focus here is on n-bit exclusive- OR tasks that are known to be hard due to their linear inseparability. The system successfully learned 2-bit and 4-bit exclusive-OR functions. The higher dimensional algorithms exhibited a relatively good performance on the 8-bit exclusive-OR function.
Join for (Augmented) Simplicial Group
Authors: MUTLU Ali
Published: June 2016

We introduced a notion of join for (augmented) simplicial groups generalising the classical join of geometric simplicial complexes. The definition comes naturally the ordinal sum on the base simplicial category Δ.
On the Curvatures of (k+1)-Dimensional Semi-Ruled Surfaces in \({{E}_{v}^{n+1} }\)
Authors: Ekici Cumali , Görgülü Ali
Published: June 2016

In this paper, first we will define the generalized (k + 1) -dimensional semi-ruled surface M*, such that the generator space of M* is the semi-subspace of E v n + 1 where E v n + 1 is the semi-Euclidean space. Then, we will compute the mean curvature, Riemann curvature, Ricci curvature and scalar curvature of M*.
Mann and Ishikawa Type Perturbed Iterative Algorithms for Generalized Nonlinear Variational Inclusions
Authors: Salahuddin Hanif , Ahmad R. , Khan M.
Published: June 2016

In this paper, we consider the generalized nonlinear variational inclusions and develop Mann and Ishikawa type perturbed iterative algorithms for finding the approximate solution of this problem. By using the definition of multivalued relaxed Lipschitz operators, we discuss the convergence criteria for the perturbed algorithms.
Wavelet-Neural Network Model for Automatic Traffic Incident Detection
Authors: Wu M. , Adeli H.
Published: June 2016

The problem of traffic incident detection can be viewed as a pattern recognition problem. Neural networks are known to solve pattern recognition problems effectively, especially when there is no mathematical model. The computational complexity of neural network algorithms, however, increases exponentially with an increase in the size of the network. Furthermore, with an increase in the size of the network, the size of the training set has to be increased exponentially in order to achieve the same level of accuracy. To overcome this double exponential complexity a hybrid feature extraction algorithm and neural network architecture is created specifically for automatic detection of traffic incidents. The upsteam and downstream traffic data are first filtered by the discrete wavelet transform. Then, a linear discriminant network is used for feature extraction. Finally, the adaptive conjugate gradient learning algorithm of Adeli and Hung is used to train the network.
Investigation of the Stresses and Strains of Steel Column-Beam Connections Subjected to Seismic Loading
Authors: Yeni E. , Gören Binnur
Published: June 2016

In Turkey most of the buildings are constructed using concrete, while it is known that concrete is a brittle construction material unsuitable for countries prone to earthquakes. Therefore in other earthquake prone countries such as Japan and USA steel column-beam connections are widely used. It is accepted worldwide that these types of structures are more resistant to seismic loading compared to concrete structures. The steel column-beam connection region is the most critical part for steel framed structures in terms of various factors such as the materials employed, the type of connection, the degree of seismic loading, etc. In this study, a welded column-beam connection was modelled using I-DEAS software and finite element analysis was carried out on the model in order to conduct the stress-strain analysis.
Matrix Transformations of Some Generalized Analytic Sequence Spaces
Authors: Bilgin Tunay
Published: June 2016

The aim of this paper is to define and to investigate the generalized analytic sequence spaces \(c_{0}^{\nu}(p,s)\), \(l_{\infty}^{\nu}(p,s)\) and \(l^{\nu}(p,s)\) and to determine the matrices of classes, like \((l_{\infty}^{\nu}(p,s), l_{\infty})\), \((c_{0}^{\nu}(p,s), l_{\infty})\), \((l^{\nu}(p,s), l_{\infty})\), \((l_{\infty}^{\nu}(p,s), c)\), \((c_{0}^{\nu}(p,s), c)\), and \((l^{\nu}(p,s), c)\), where the sequence space and \(c\) are respectively the spaces of bounded and convergent complex sequences.
A Method to Increase the Size of Healty Subcubes Set in a Hypercube System with Node or Link Failures
Authors: Allahverdi Novruz
Published: June 2016

In this study we considered and analyzed the different cases of node- and link-faults in a hypercube multiprocessor. We revealed that, the direct use of sharp product operation is not sufficient to discard only computational part (processor and memory), when only this part of node is faulty. We also showed that in case when some links in communication part (router) incident to a healthy node are faulty, the sharp product operation does not allow to leave the healthy links and the node incident to these links in the set of healthy subcubes. In order to remove this lack we propose in this study the formal procedures with aid of which we can subtract first only the faulty node, excluding the healthy links incident to this node and second only the faulty links, excluding also the healthy nodes incident to these links of such systems.
Kinetic Equations for Ultrasonic Scission of Polymers
Authors: Can M.
Published: June 2016

When a long chain of polymer is sonicated it is known that it preferentially breaks at the middle and long chain radicals result. The termination step is especially important to control the degree of polymerisation Pn. In this paper, in the absence of the radical traps the nature of the phenomenological kinetic equations derived in [4] are studied. It has been found that for all possible values of the parameters, the only equilibrium point is linearly stable. But because of the nonlinear effects, stability of the equilibrium point depends on the parameter space. For some set of parameters and initial conditions, it has been observed that the solutions are asymptotically periodic. But large time behaviour of all these solutions are not realistic in the sense that functions representing nonnegative physical quantities assume negative values. A modified version of the kinetic equations whose solutions remain nonnegative in the time course is also proposed.
Thermodynamic Effects at Interaction between Laser Beam and Heavy - Viscous Liquids
Authors: Hassanov Hikmet
Published: June 2016

Influence of laser radiation on thermodynamic properties of heavy - viscous liquids is investigated. Mathematical model taking into account liquids viscosity and their thermal specifications is firstly developed. Inverse problem for acoustic pressure is Solved. Formula for determining thermodynamic parameters of liquid is obtained. Effect of main laser beam characteristics (radiation duration and intensity) on generation of non - stationary states in liquid is estimated.
Modelling Tractive Performance for Drive Wheel
Authors: Çarman Kazim , Dünyamalioğlu Fariz
Published: June 2016

A model was developed by regression analysis to predict the tractive performance of 7.00-18 radial ply tire for agricultural tractors. Different parameters that affect the cone index of soil and wheel slip were considered for the analysis. To obtain experiments values belonging to tractive performance of tire, a study was conducted in the soil bin by using a single wheel agricultural tire test machine. Performance of this model was compared with model developed by Wismer and Luth (1974) to predicted tractive performance. Mathematical and statistical methods were used to fitting and analysing of models. Results showed that M1 model outputs were closer to experimental values than M2 model outputs for prediction of traction performance
Potential Symmetry Generators of Some Perturbed Nonlinear Evolution Related Equations
Authors: Kara A.
Published: June 2016

Some recent results on approximate Lie group methods and previously developed concepts on potential symmetries are extended and applied to nonlinear systems perturbed to some order by a small parameter. The potential (or auxiliary) form of the perturbed . system necessarily requires knowledge of an "approximate" conservation law of the system. We make an analysis on a perturbed Burgers equation and discuss other nonlinear equations where the results are applicable.
Simulation of Swarm Intelligence and Possible Applications in Engineering
Authors: Öztürk Savaş , Esin E.
Published: June 2016

Modeling biological and natural systems in order to solve complex problems have become popular. Traditional techniques fail at solving some types of problems. On the other hand, it is seen that these kind of problems are solved in nature without help of human. Swarm intelligence(SI) as a research field, proposes such solutions. SI models the collective behavior of the social insects like ants, bees or termites and their coordination without communication. The emerged intelligence has some special characteristics and it can be applied to some areas. Some of the application fields are robotics, networking, finance and entertainment. In this paper, principles of SI systems, original simulations of some SI techniques, and new approaches are presented.
Evaluation of Control Methods on a Structural System
Authors: Yagiz Nurkan , Ertal Cuneyt
Published: June 2016

In this study, PID, LQR and sliding mode controllers are designed as active seismic isolation devices on a multi degrees of freedom structure. At first PID control is applied as a conventional method. Since this control method can be applied easily and well known widely, it has an important role in control applications. Secondly, a LQR is designed to suppress the vibrations of the structural system. But these methods are not insensitive to parameter changes. Since the model might have uncertainties and/or parameter changes. sliding mode control has been introduced because of its well-known robust character and superior performance. Additionally, this control method can easily be applied to non-linear systems. The simulated system has four stories. A disturbance input representing earthquake is applied to the base. At the end of the study, the Lime history of the storey displacements, control voltage and frequency responsc of the both uncontrolled, PID, LQR and sliding mode controlled structures have been presented and results have been compared.
Similarity Analysis of Long Wave Equations with Variable Bottom Friction
Authors: Kiliç M. , Pakdemirli M. , Solmaz B.
Published: June 2016

Long wave equations propagating along an open channel with bottom friction are considered. The equations are cast into a non-dimensional form, Scaling and translational symmetries of the equations are calculated for the cases of constant bottom friction coefficient and variable bottom friction coefficient. Using the symmetries, the partial differential equations are transformed into ordinary differential equations. Analytical and numerical solutions of the ordinary differential equations are found and solutions are contrasted with each other.
Proximal Methods for Generalized Nonlinear Quasi-Variational Inclusions
Authors: Salahuddin Hanif , Irfan S. S.
Published: June 2016

We consider the solvability, based on iterative algorithms, of the generalized nonlinear quasi-variational inclusion problems involving the relaxed Lipschitz and relaxed monotone mappings.
An Existence Theorem for General Mixed Multivalued Mildly Nonlinear Variational Inequalities without Convexity
Authors: Salahuddin Hanif , Ahmad Rais , Irfan S.
Published: June 2016

A general mixed multivalued mildly nonlinear variational inequality is considered. We establish an existence result for (GMMMNVIP) in H-spaces by using the new result of Chang et al [21].
On a Class of Nonlinear Singular Integral Equations with Carleman Shift in Generalized Holder Spaces
Authors: Amer S. , Dardery S.
Published: June 2016

The paper concerns with the investigation of a class of nonlinear singular integral equations with Carlernan shift. Existence results are given by application of Schauder's fixed-point theorem to this type of equations in generalized Holder space.
Determination of Hardness of Pre-Aged AA 6063 Aluminum Alloy by Means of Artificial Neural Networks Method
Authors: Durmuş Hülya , Unlü Bekir , Meriç Cevdet
Published: June 2016

A lot of experiments must be conducted in order to find an appropriate technology for the calculation of strength of the materials, which wastes both man power and money. For this reason artificial neural networks (ANNs) have been used to search the optimum technology proper for pre-aged AA 6063 aluminum alloy. In this study, ANNs were used to compare experimental results and test data were used for teaching of the ANNs. This paper examines the changes in the hardness of AA 6063 alloys when heat treated at different pre-aging treatments. The alloy was solution treated for 1 hour at 525±3 °C and quenched in water. After quenching, samples were subjected to five different pre aging times, 2 hours, I day, 3 days, 7 days. On the other hand, some specimens were not pre-aged. Artificial age temperatures were selected as 160 °C and 180 °C. The hardness values of these under-aged alloys were measured. When the pre-aging time was 7 days, the hardness values of the specimens increased. An excellent correlation was found between experimental hardness results and ANNs hardness results.
General Fermion Triangle Amplitude in the Coupling of Spin-1 Particles and Ward Identities
Authors: Abdelhafiz M. , Khaliel F.M. , Tantawi Ramadan
Published: June 2016

The general off mass-shell one-loop amplitude ta the termion triangle diagrams is calculated, in theories with γ5 couplings for spin-1 particles. Properties of the Bose symmetry and Ward identities for the couplings of neutral particles are investigated . The VVA and AAA triangle diagrams are obtained from our general form. All resulting amplitudes are consistent with Ward identities. The amplitude for the coupling of three identical spin-1 particles is given. This amplitude obeys Bose symmetry and Ward identities for anomaly free theory.
A Note on the Norms of the GCD Matrix
Authors: Türkmen R. , Bozkurt D.
Published: June 2016

Let \(S=\{1,2,..., n\}\) be a set of positive integers. The \(n\times n\) matrix \([S]=(i,j)\), where \(s_{ij}=(x_{i},x_{j})\) the greatest common divisor of \(x_{i}\) and \(x_{j}\), is called the greatest common divisor GCD matrix on \(S\). In this study, we have obtained some bounds of norms of this matrix. In addition, we have obtained upper bounds of norms of the almost Hilbert-Smith GCD matrix is defined \((S)=\left[ \frac{(i,j)}{ij} \right]^{n}_{i,j=1}\)
An Infinite Plate with a Curvilinear Hole and Flowing Heat
Authors: Sabbah A.S. , Abdou M.A. , Ismail A.S.
Published: June 2016

In the present paper, we apply the complex variable method (Cauchy method) to derive exact expressions for the Goursat's functions for the boundary value problem of infinite plate weakened by a curvilinear hole. The hole is conformally mapped on the domain outside a unit circle by means of a general rational mapping function. Also the stress components, when an initial heat is uniformly flowing in the perpendicular direction of the hole, are obtained, Some applications are investigated. The interesting cases, when the shape of the hole takes different famous formulas are included as special cases, The work of many previous authors can be considered as special cases of this work.
On the Mathematical Modeling of Beams Rotating about a Fixed Axis
Authors: Telli Sevda , Kopmaz Osman
Published: June 2016

In this paper, the equations of motion of a rotating beam encountered in various mechanical systems are given in the Euler-Newtoian form using four different dynamic modelling approaches. These models differ from each other in that they use different elastic displacements to define the state of deformed beam, i.e. the longitudinal and transversal deflections model, the axial and transversal deflections model, the axial, transversal deflections and slope angle model, and finally the transversal deflection with normal force model, which are abbreviatedly denoted by the UVM, the SVM, the SVφM, and the VNM. Following a brief discussion about geometric relationship among three linear elastic displacements,–that is, the longitudinal u-, the transversal ν-, and the axial s-displacements– geometric stiffening effect, and the choice of spatial functions consistent with boundary conditions to discretize equations of motion, simulation results found from these models are presented in graphics, and comparatively evaluated. It is concluded that the SVM and the SVφM is most reliable models provided that the comparison functions for axial displacement s are the eigenmodes of a fixed-free, longitudinally vibrating rod. The VNM appears to be a prudential model, because it always gives results above those obtained by the SVM.
On the Kr-Core of Complex Sequences and the Absolute Equivalence of Summability Matrices
Authors: Çakan Celal , Aydin Cafer
Published: June 2016

The Kr-core of a complex valued sequence has been introduced in [5]. In this paper, we have determined a class of matrices such that Kr - core (Ax) ⊆ Kr - core (x) hold for all x ∈ L∞. Also; we have defined a new type of absolute equivalence, r - absolute equivalence, and characterized these type of matrices.
Freeness Conditions of Tensors and Coproducts of Groups
Authors: Mutlu Ali
Published: June 2016

Using a free simphicial group with given a CW-basis, we give an alternative description of the top group of the free square complex and 2-crossed complex of groups on 2-construction data in terms of tensors and coproducts of crossed module of groups. Therefore the functors are given between these categorical constructions.
233U Breeding in a Modified Prometheus-L IFE Reactor
Authors: Übeyli Mustafa
Published: June 2016

In this study. neutronic analysis of a hybrid version of the PROMETHEUS-LIFE reactor is investigated by using thorium fuels namely, ThN, ThC2 and ThF4. Calculations of neutronic data per DT fusion neutron are performed by using SCALE 4.3 Code. Despite a partial replacement of the tritium breeding zone by the fissile fuel breeding zone, tritium breeding remains still > 1.05, which will be required for a self-sustaining fusion driver. Energy multiplication 1.44 to 1.50 depending on the fuel types in the blanket. Therefore, the investigated reactor can produce substantial electricity in situ. Substantial amount of fissile material will be produced at start-up conditions with a fissile fuel breeding rate of 233U = 0.154, 0.126 and 0.077 for ThN, ThC2 and ThF4 per incident fusion neutron, which correspond to 1858, 1521, 934 kg 233U/year, respectively, by a full fusion power of 2807 MW.
Variational Monte Carlo Calculations of Energy per Particle Nuclear Matter
Authors: Manisa K.
Published: June 2016

In this paper, symmetrical nuclear matter has been investigated. Total, kinetic and potential energies per particle were obtained for nuclear matter by Variational Monte Carlo method. We have observed that the results are in good agreement with those obtained by various authors who used different potentials and techniques.
Effect of Oxidation Temperature on the Oxidation Process of Silicon-Containing Steel
Authors: He Bei , Xu Guang , Zhou Mingxing , Yuan Qing
Published: June 2016

The oxidation behavior of silicon-containing steel was studied by applying segmented heating routes similar to the atmosphere and heating process in an industrial reheating furnace. The oxidation tests were carried out on a simultaneous thermal analyzer at heating temperatures of 1150 °C–1300 °C. The morphologies of Fe2SiO4 were observed by SEM, and the penetration depths of the Fe2SiO4 layer at different oxidation temperatures were determined by using the Image-Pro Plus 6.0 software. The results show that at heating temperatures ≥1235 °C, the oxidation rate and total oxidation mass gain have no relation with the heating temperature; the mass gain versus time follows a linear law after about 1164 °C (lower than the eutectic temperature of fayalite). In addition, the oxidation rate first decreases slowly and then drops from 1190 °C to 1210 °C during the isothermal holding stage. With the increase in temperature, the oxidation rate and mass gain also increase gradually; the relationship between the mass gain and time is close to a parabolic law. Moreover, at a heating temperature of 1150 °C, the oxidation rate decreases rapidly during the isothermal holding stage, and the mass gain versus time follows a parabolic law.
Quantum Transport Simulation of High-Power 4.6-μm Quantum Cascade Lasers
Authors: Jonasson Olafur , Mei Song , Karimi Farhad , Kirch Jeremy , Botez Dan , Mawst Luke , Knezevic Irena
Published: June 2016

We present a quantum transport simulation of a 4.6- μ m quantum cascade laser (QCL) operating at high power near room temperature. The simulation is based on a rigorous density-matrix-based formalism, in which the evolution of the single-electron density matrix follows a Markovian master equation in the presence of applied electric field and relevant scattering mechanisms. We show that it is important to allow for both position-dependent effective mass and for effective lowering of very thin barriers in order to obtain the band structure and the current-field characteristics comparable to experiment. Our calculations agree well with experiments over a wide range of temperatures. We predict a room-temperature threshold field of 62 . 5 kV/cm and a characteristic temperature for threshold-current-density variation of T 0 = 199 K . We also calculate electronic in-plane distributions, which are far from thermal, and show that subband electron temperatures can be hundreds to thousands of degrees higher than the heat sink. Finally, we emphasize the role of coherent tunneling current by looking at the size of coherences, the off-diagonal elements of the density matrix. At the design lasing field, efficient injection manifests itself in a large injector/upper lasing level coherence, which underscores the insufficiency of semiclassical techniques to address injection in QCLs.
Coopting the State: The Conservative Evangelical Movement and State-Level Institutionalization, Passage, and Diffusion of Faith-Based Initiatives
Authors: Sager Rebecca , Bentele Keith
Published: June 2016

In the following, we characterize the contemporary conservative Evangelical movement as an example of contentious politics, a movement that relies on both institutional and noninstitutional tactics to achieve political outcomes. Examining multiple institutional and legislative outcomes related to the Faith Based Initiative, we seek to understand why some states have established state faith-based bureaucracies and passed significantly more faith-based legislation. We find that the influence of elite movement actors within state Republican parties has been central to these policy achievements. Furthermore, we find that the presence of movement-inspired offices increase the rate of adoption of legislation, and the passage of symbolic policies increases the likelihood of passage of more substantive faith-based legislation. We argue that the examination of multiple outcomes over time is critical to capturing second order policy effects in which new institutions, the diffusion of legislation and institutions, and increasing policy legitimacy may shape subsequent legislative developments.
Model-Based Design and Formal Verification Processes for Automated Waterway System Operations
Authors: Petnga Leonard , Austin Mark
Published: June 2016

Waterway and canal systems are particularly cost effective in the transport of bulk and containerized goods to support global trade. Yet, despite these benefits, they are among the most under-appreciated forms of transportation engineering systems. Looking ahead, the long-term view is not rosy. Failures, delays, incidents and accidents in aging waterway systems are doing little to attract the technical and economic assistance required for modernization and sustainability. In a step toward overcoming these challenges, this paper argues that programs for waterway and canal modernization and sustainability can benefit significantly from system thinking, supported by systems engineering techniques. We propose a multi-level multi-stage methodology for the model-based design, simulation and formal verification of automated waterway system operations. At the front-end of development, semi-formal modeling techniques are employed for the representation of project goals and scenarios, requirements and high-level models of behavior and structure. To assure the accuracy of engineering predictions and the correctness of operations, formal modeling techniques are used for the performance assessment and the formal verification of the correctness of functionality. The essential features of this methodology are highlighted in a case study examination of ship and lock-system behaviors in a two-stage lock system.
Les pièces Hercule furieux et Hercule sur l'Œta sont-elles des tragédies stoïciennes ?
Authors: Chaumartin F.-R.
Published: June 2016

Hercule Furieux et Hercule sur l'Oeta, deux pièces, dont la première est à peu près sûrement de Sénèque et la seconde très probablement d'un imitateur, occupent une place à part dans le corpus des tragédies, en ce sens qu'elles ne se terminent pas par le désastre du protagoniste, mais l'une par une sorte de rédemption et l'autre par son apothéose et l'accès à l'immortalité. La référence au stoïcisme, plus particulièrement à celui de Sénèque, donne la meilleure clé pour l'interprétation.
WASTEWATER AND LANDFILL LEACHATE TESTING: ACUTE TOXICITY BIOTEST RESULTS EVALUATION
Authors: ČETKAUSKAITĖ Anolda , VOSYLIENĖ Milda Zita , KAZLAUSKIENĖ Nijolė , KALCIENĖ Virginija
Published: June 2016

This diverse review discusses biotest species and results scoring systems, which were applied to aquatic toxicity assessment of effluents/wastewater (WW) and landfill leachate (LL). European and American aquatic toxicity testing is reviewed. An example of Lithuanian research data on LL biotesting with aquatic organisms of different phylogenetic and ontogenetic levels is presented. Acute toxicity WW and LL is assessed on the basis of (L(E)C50, acute Toxic Units (tua), pt values, and, by applying different simple result scoring systems or toxicity thresholds. The differences in legislation and recommendations for biotest application in WW and LL aquatic toxicity testing are compared. It is concluded that WW and LL lowest acute toxicity data (tua value 0.3) should be considered equally as risk to aquatic environment, and technical management decisions should be made. The universal features of toxicity scoring systems, the problems of inventory of old small landfills and cost effective approach are discussed.
THE ROLE OF RADIATION PRESSURE IN THE NARROW LINE REGIONS OF SEYFERT HOST GALAXIES
Authors: Davies Rebecca L. , Dopita Michael A. , Kewley Lisa , Groves Brent , Sutherland Ralph , Hampton Elise J. , Shastri Prajval , Kharb Preeti , Bhatt Harish , Scharwächter Julia , Jin Chichuan , Banfield Julie , Zaw Ingyin , James Bethan , Juneau Stéphanie , Srivastava Shweta
Published: June 2016

We investigate the relative significance of radiation pressure and gas pressure in the extended narrow line regions (ENLRs) of four Seyfert galaxies from the integral field Siding Spring Southern Seyfert Spectroscopic Snapshot Survey (S7). We demonstrate that there exist two distinct types of starburst-active galactic nucleus (AGN) mixing curves on standard emission line diagnostic diagrams, which reflect the balance between gas pressure and radiation pressure in the ENLR. In two of the galaxies the ENLR is radiation pressure dominated throughout and the ionization parameter remains constant (log U ∼ 0). In the other two galaxies radiation pressure is initially important, but gas pressure becomes dominant as the ionization parameter in the ENLR decreases from log U ∼ 0 to −3.2 ≲ log U ≲ −3.4. Where radiation pressure is dominant, the AGN regulates the density of the interstellar medium on kiloparsec scales and may therefore have a direct impact on star formation activity and/or the incidence of outflows in the host galaxy to scales far beyond the zone of influence of the black hole. We find that both radiation pressure dominated and gas pressure dominated ENLRs are dynamically active with evidence for outflows, indicating that radiation pressure may be an important source of AGN feedback even when it is not dominant over the entire ENLR.
MASSIVE QUIESCENT CORES IN ORION. VI. THE INTERNAL STRUCTURES AND A CANDIDATE OF TRANSITING CORE IN NGC 2024 FILAMENT
Authors: Ren Zhiyuan , Li Di
Published: June 2016

We present a multiwavelength observational study of the NGC 2024 filament using infrared to submillimeter continuum and the

and

inversion transitions centered on FIR-3, the most massive core therein. FIR-3 is found to have no significant infrared point sources in the Spitzer/IRAC bands. But the

kinetic temperature map shows a peak value at the core center with

K, which is significantly higher than the surrounding level (

15–19 K). Such internal heating signature without an infrared source suggests an ongoing core collapse possibly at a transition stage from first hydrostatic core (FHSC) to protostar. The eight dense cores in the filament have dust temperatures between 17.5 and 22 K. They are much cooler than the hot ridge (

K) around the central heating star IRS-2b. Comparison with a dust heating model suggests that the filament should have a distance of 3–5 pc from IRS-2b. This value is much larger than the spatial extent of the hot ridge, suggesting that the filament is spatially separated from the hot region along the line of sight.