In this paper, we introduce fractional order into an ecoepidemiological model, where predator consumes disproportionately large number of infected preys following type 2 response function. We prove different mathematical results like existence, uniqueness, nonnegativity, and boundedness the solutions system. also local global stability equilibrium points The are illustrated with several examples.

The present article presents the optimization of electric stress distribution over live electrode an axisymmetric electrode-spacer arrangement that is used in a Gas insulated substation (GIS) typically for 12–420 kV operations. technique based on classical approach employing Simplex Algorithm which to solve constrained linear programming problems (LPPs). For this purpose, objective function obtained by applying multiple regression analysis mathematical relationship between maximum resultant...

A three-dimensional micropolar thermoelastic problem is considered for an isotropic rectangular plate that subjected to simply support and isothermal on its four adjacent edges. Normal mode analysis applied the governing equations form a vector-matrix differential equation analytical solution of obtained by using eigenvalue approach methodology. Numerical results are presented graphically along with theoretical sinusoidal variation stresses top surface plate.

In this paper support vector machine (SVM) has been used for optimization of electric field along the insulators in high voltage (HV) systems. To illustrate effectiveness SVM optimizing problems, two axi-symmetric cases have considered one having an insulator with a contour that is quarter ellipse and second porcelain core solid insulator. The training test data prepared by electrostatic computation using indirect boundary element method (BEM). It observed once trained it able to give...

In ["Theory of fractional order generalized thermoelasticity," Journal Heat Transfer132, 2010] Youssef has proposed a model in thermoelasticity based on the time derivatives. The current manuscript is concerned with two-dimensional thermoelastic coupled problem for homogeneous isotropic and thermally conducting rotating medium context above two relaxation parameters. normal mode analysis technique used to solve resulting non-dimensional governing equations problem. solution then applied...

This paper deals with the optimization of stress distribution on and around electrode-spacer arrangements for ensuring economical higher reliability gas-insulated systems. The technique adopted in this is artificial neural network-aided simulated-annealing (SA) algorithm. By coupling a trained net annealing algorithm, execution speed latter greatly enhanced to evaluate optimum values design parameters compared calculating cost function via entire process field calculation at every move...

Optimization of contours three dimensional electrode-spacer arrangements used in gas insulated systems (GIS) has been carried out by ANN aided genetic algorithm (GA) to obtain desirable electric stress distribution along the insulator surface. Two cases have studied and reported detail. Multilayer feed-forward neural networks with error back-propagation applied accelerate execution GA loop. The training test data prepared means field calculations using indirect boundary element method (BEM)....

In this paper we present analytical solution of a fractional order predator-prey model, where prey grows logistically and predation occurs following type II response function, by homotopy perturbation method. Numerical solutions are presented to illustrate different particular cases. Our computational results show that accurate may be obtained with few iterations.

A two-dimensional generalized thermoelastic model of the problem reflection P- and SV-waves on a half space thermally conducting isotropic elastic material has been considered based Green–Lindsay theory. Ratios coefficients have calculated for different cases results compared with existing literature are presented in graphs.

The three major sources of noise in an ECG signal are baseline drift, powerline interference and other electromagnetic interferences. With the recent success Wavelet transform identifying eliminating from a wide variety signals, frequency transformation techniques gaining more importance for signals. This paper applies S-transform wander signals proposed approach is subsequently compared with method based on wavelet transform.

Among the several noises that contaminate an electrocardiogram (ECG), most common are power line interference, other electromagnetic interferences and baseline wander. Due to presence of drift isoelectric ECG gets shifted causing a distortion ST segment original signal which may be misinterpreted as cardiac ischemia or myocardial infraction. Thus, filtering from is considered one addressed problems in bio-medical processing. The present work aims eliminate wander by applying time-frequency...

A novel formulation has been proposed in this paper for the calculation of asymmetric electric field including surface resistance using Surface Charge Simulation Method (SCSM). The tested a partly conducting dielectric sphere placed uniform sinusoidal and also an axi-symmetric post type insulator. Finally method applied computing effects resistivity on around solid components high voltage metal enclosed equipments having geometries. distribution different examples have reported details....

This article deals with the estimation of electric stress distribution over a vacuum interrupter having axi-symmetric configuration that is used for 11-kV switching operation. Regression analysis to establish functional relationship between maximum value resultant ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\text{E}^{\text {max}}$ </tex-math></inline-formula> ) live electrode system and those...

In the field of electrical engineering, polymer nano-composites have been alluring owing to their excellent dielectric properties. At contrasting loading concentration, they are embodied with nano-fillers for boosting This paper aims investigate properties, thermal surface hydrophobicity, leakage current and optical properties polypropylene (PP) when reinforced Zinc Oxide (ZnO) find its suitability as a material. With introduction ZnO fillers in PP, improvements observed. Thermal stability...

This paper introduces an impeller design for a turbo compressor based on novel composite material winding technology. The main objective is to develop high performance impeller, which can be economically produced refrigeration plants using water as refrigerant (R718) even below 300 kW (100 ton) capacity. Water provide very coefficient of performance, while it environmentally inert and hence preferred. required able handle large volume flows also withstand stresses due speed rotation...

Abstract The present work aims to improve both the thermal and dielectric properties at power frequency of millable high temperature vulcanized silicone rubber (HTV SR) so that it can be used as housing material for transformer bushings or a substitute ceramic glass insulators. For this purpose, nano sized titanium dioxide (TiO) particles have been incorporated into HTV SR. Samples SR, filled with different percentages by weight TiO fillers synthesized along one SR sample without filler...

Condition monitoring of the insulation windings a power transformer depends on accuracy with which neutral current is measured during impulse test both at full and reduced voltage. The most common problem faced while measuring that it contains noise causes ambiguous fault signatures. This paper presents an effective means for filtering out from using framelet technique. A fast yet simple algorithm has been used here to calculate coefficients. Results presented are electromagnetic transient...

Lightning impulse test is one of the mandatory tests that every transformer has to undergo after assembly. This done for assessing condition insulation its windings. In case any fault, neutral current and/or tank contain(s) typical signatures depending on nature and location fault. Since these signals are non-stationary in hence each faults can be classified from such a transformation technique time-frequency localization property. paper investigates performance Stockwell Transform,...

Abstract The current work is concerned about a two dimensional multi phase lag modelof generalised thermoelasticity in an isotropic half space medium. A vector-matrixdifferential equation obtained from the governing equations using normal modeanalysis. eigenvalue approach applied to get solutions. Numerical computationsfor different components of displacement, stress, strain and temperatureare calculated represented graphically show accuracy context ofmechanical thermal loads that on boundary.