Results 41 to 50 of about 3,661 (155)

Investigation on integro-differential equations with fractional boundary conditions by Atangana-Baleanu-Caputo derivative.

PLoS ONE
We establish, the existence and uniqueness of solutions to a class of Atangana-Baleanu (AB) derivative-based nonlinear fractional integro-differential equations with fractional boundary conditions by using special type of operators over general Banach ...
Samy A Harisa, Nashat Faried, V Vijayaraj, C Ravichandran, Ahmed Morsy   +4 more
doaj   +1 more source

Optimization calculation of well function W (u, r/B) based on BP neural network [PDF]

E3S Web of Conferences, 2019
In order to obtain the calculation result of the well function W (u, r/B) in the groundwater more quickly and the obtained result is more accurate than the approximation obtained by the conventional interpolation.
Yuxia Zhang
doaj   +1 more source

On Approximation of Any Ordered Fuzzy Number by A Trapezoidal Ordered Fuzzy Number [PDF]

Symmetry, 2018
In this paper, the model of imprecise quantity information is an ordered fuzzy number. The purpose of our study is to propose some methods of approximating any ordered fuzzy number using a trapezoidal ordered fuzzy number. The information ambiguity is evaluated by means of an energy measure.
Krzysztof Piasecki, Anna Lyczkowska-Hanckowiak   +1 more
openaire   +1 more source

General Geometric Model for the Cutting Edge in Thread Turning

Machines
Modern requirements for highly critical threads, such as drilling tool-joint threads or trapezoidal threads of heavy machine tools, impose requirements for high accuracy and at the same time wear resistance of thread cutters.
Cristian Barz, Oleh Onysko, Volodymyr Kopei, Yaroslav Kusyi, Lesia Shkitsa, Predrag Dašić, Saulius Baskutis   +6 more
doaj   +1 more source

Characterisation of the Material and Mechanical Properties of Atomic Force Microscope Cantilevers with a Plan-View Trapezoidal Geometry

Applied Sciences, 2019
Cantilever devices have found applications in numerous scientific fields and instruments, including the atomic force microscope (AFM), and as sensors to detect a wide range of chemical and biological species. The mechanical properties, in particular, the
Ashley D. Slattery, Adam J. Blanch, Cameron J. Shearer, Andrew J. Stapleton, Renee V. Goreham, Sarah L. Harmer, Jamie S. Quinton, Christopher T. Gibson   +7 more
doaj   +1 more source

Approximating the Stieltjes integral via a weighted trapezoidal rule with applications

Mathematical and Computer Modelling, 2013
Abstract In this paper we provide sharp error bounds in approximating the weighted Riemann–Stieltjes integral ∫ a b f ( t ) g ( t ) d α ( t ) by the weighted trapezoidal rule f ( a ) + f ( b ) 2 ∫ a b g ( t ) d α ( t ) .
Sever Silvestru Dragomir, Igor Fedotov
openaire   +2 more sources

The dynamic programming method application to the solution of one fuzzy salesman problem

Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï
A method for solving the traveling salesman problem is proposed, utilizing dynamic programming to determine the shortest duration route, considering the fuzzy representation of travel time between individual points.
Eugene Ivokhin, Konstantin Yushtin, Larisa Adzhubey   +2 more
doaj   +1 more source

Analytical Hierarchy Process based on intuitionistic interval approximation of trapezoidal intuitionistic fuzzy numbers

Data Analytics and Applied Mathematics
The fuzzy Analytical Hierarchy Process (AHP) is a method in fuzzy decision-making, which helps decision makers make the best choice of alternatives when dealing with uncertainty.
Nik Muhammad Farhan Hakim Nik Badrul Alam, Ku Muhammad Naim Ku Khalif, Nor Izzati Jaini   +2 more
doaj   +1 more source

Approximating the Stieltjes integral by using the generalized trapezoid rule

Le Matematiche, 2011
Summary: The generalized trapezoid rule is established on the notion of the derivative of a function with respect to an increasing function. This is then used to approximate the Stieltjes integral.
Avyt Asanov, M. Haluk Chelik, Ali Chalish   +2 more
openaire   +3 more sources

Numerical approximation of a generalized time fractional partial integro-differential equation of Volterra type based on a meshless method

Partial Differential Equations in Applied Mathematics
The moving least squares (MLS) approximation is used in this study to solve time-fractional partial integro-differential equations (TFPIDE). In our approach, we approximate the time Caputo fractional derivative term and the integral term by using a ...
A. Mohib, S. Elbostani, A. Rachid, R. El Jid   +3 more
doaj   +1 more source