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Dec 31, 2024Open Access
The implementation of automated systems that meet the desired functional specifications requires scientifically proven modelling and design tools. The achievement of an automated computing system that meets the set criteria and technical specifications depends on several factors. These include the accuracy and the accuracy of the choice of modelling and design tools, the degree to which they are appropriate and adaptable to the application domain, the nature and setting of the application ...
Oct 23, 2024Open Access
In this paper, we report the study of I-V characteristics for some metal work functions. The Schottky barrier structure is controlled by the metal work function using the MATLAB programming language. The study of the effect of metal work function proved its influence on device performance, and a significant dependence was observed between this parameter and the electrical parameters at room temperature. The temperature effect on the electrical characteristics of n-AlGaAs Schottky diodes has been...
Sep 11, 2024Open Access
Textbooks on classical physics adequately discuss the dimension concept of physical quantities. Alternatively, it turns out that quantum textbooks generally ignore the dimension of the quantum function Ψ. Furthermore, different quantum field theories implicitly assign different values to this concept. This article discusses the dimension of the quantum function Ψ of several theories. It proves that this concept yields effective criteria for the coherence of quantum field theories. Thes...
Dec 01, 2023Open Access
The traditional numerical computation of the first and higher derivatives of a given function f(x) of a single argument x by central differencing is known to involve aspects of both accuracy and precision. However, central difference formulas are useful only for interior points not for a certain number of end points belonging to a given grid of points. In order to get approximations of a desired derivative at all points, one has to use asymmetric difference formulas at points where central diffe...
Aug 15, 2023Open Access
This article considered the development of a two-point hybrid method for the numerical solution of initial value problems of second order ordinary differential Equations (ODEs) using power series and exponentially-fitted basis function. Interpolation and collocation techniques were used to derive the method. The method was implemented in predictor-corrector mode. In order to increase the accuracy of the results of the method, the predictor was designed to have same order of accuracy as the corre...
Apr 24, 2022Open Access
This study is aimed to investigate the acceleration response of the non-commutated Direct Current (DC) linear actuator in a numerical approach. The linear actuator is often driven with the specified wave digital signal processing (DSP), which gets forced vibration. The acceleration response of the actuator matters because it is related to vibration intensity. As well, the experiments and technical datasheets report that after the resonance frequency, the acceleration decreased, and the vibration...
Aug 19, 2021Open Access
At least a minority of planets, moons and other bodies exist within significant external astrophysical fields. The ambient field problem is more relevant to these bodies than the classical dynamo problem, but remains relatively little studied. This paper will concern with the effect of axisymmetric and non-axi- symmetric ambient field on a spherical, axisymmetric dynamo model, through nonlinear calculations with α-quenching feedback. Ambient fields of varying strengths are imposed in the model. ...
May 20, 2021Open Access
In this paper, we establish some mid-point type and trapezoid type inequalities via a new class of fractional integral operators which is introduced by Ahmad et al. We derive a new fractional-type integral identity to obtain Dragomir-Agarwal inequality for m-convex mappings. Moreover, some inequalities of Hermite-Hadamard type for m-convex mappings are given related to fractional integrals with exponential kernels. The results presented provide extensions of those given in earlier works.
Feb 26, 2021Open Access
In this paper, we present formulas that turn finite power series into series of shifted Chebyshev polynomials of the first kind. Thereafter, we derive formulas for coefficients of economized power series obtained by truncating the resulting Chebyshev series. To illustrate the utility of our formulas, we apply them to the solution of first order ordinary differential equations via Taylor methods and to solving the Schrödinger equation (SE) for a spherically symmetric hyperbolic potential via...
Sep 29, 2020Open Access
In this paper, we have established a new identity related to Katugampola fractional integrals which generalize the results given by Topul et al. and Sarikaya and Budak. To obtain our main results, we assume that the absolute value of the derivative of the considered function is p-convex. We derive several parameterized generalized Hermite-Hadamard inequalities by using the obtained equation. More new inequalities can be presented by taking special parameter values for , and p. Also, we provide...
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