Results 1 to 10 of about 653,519 (263)

Modeling the dynamic semantics of a computer program

open access: yesЦифровые модели и решения, 2023
In this paper, two approaches are used to construct the dynamic semantics of computer programs: the first is the representation of mathematical models of computational processes generated by a computer program in the form of a discrete transformer; the ...
K. E. Iklassova, R. N. Kozhakhmetova
doaj   +1 more source

Using Bidimensional Multiscale Entropy Analysis of Ultrasound Images to Assess the Effect of Various Walking Intensities on Plantar Soft Tissues

open access: yesEntropy, 2021
Walking performance is usually assessed by linear analysis of walking outcome measures. However, human movements consist of both linear and nonlinear complexity components. The purpose of this study was to use bidimensional multiscale entropy analysis of
Ben-Yi Liau   +5 more
doaj   +1 more source

Temporal Graphs and Temporal Network Characteristics for Bio-Inspired Networks during Optimization

open access: yesApplied Sciences, 2022
Temporal network analysis and time evolution of network characteristics are powerful tools in describing the changing topology of dynamic networks. This paper uses such approaches to better visualize and provide analytical measures for the changes in ...
Nicholas S. DiBrita   +4 more
doaj   +1 more source

Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems

open access: yesAdvances in Nonlinear Analysis, 2021
We consider quasilinear elliptic systems in divergence form. In general, we cannot expect that weak solutions are locally bounded because of De Giorgi’s counterexample. Here we assume that off-diagonal coefficients have a “butterfly support”: this allows
Leonardi Salvatore   +3 more
doaj   +1 more source

Analysis of radioactivity levels and hazard assessment of black sand samples from Rashid area, Egypt

open access: yesNuclear Engineering and Technology, 2017
The aim of this study is to evaluate the radioactivity levels and radiological impacts of representative black sand samples collected from different locations in the Rashid area, Egypt.
Mohamed A.E. Abdel-Rahman   +1 more
doaj   +1 more source

Local and Global Existence and Uniqueness of Solution for Time-Fractional Fuzzy Navier–Stokes Equations

open access: yesFractal and Fractional, 2022
Navier–Stokes (NS) equation, in fluid mechanics, is a partial differential equation that describes the flow of incompressible fluids. We study the fractional derivative by using fractional differential equation by using a mild solution.
Kinda Abuasbeh   +3 more
doaj   +1 more source

Well-Posedness and Regularity Results for Fractional Wave Equations with Time-Dependent Coefficients

open access: yesFractal and Fractional, 2022
Fractional wave equations with time-dependent coefficients are natural generations of classical wave equations which can be used to characterize propagation of wave in inhomogeneous media with frequency-dependent power-law behavior.
Li Peng, Yong Zhou
doaj   +1 more source

Maximal Product of Graphs under Vague Environment

open access: yesMathematical and Computational Applications, 2020
Graph models are found everywhere in natural and human made structures, including process dynamics in physical, biological and social systems. The product of graphs are appropriately used in several combinatorial applications and in the formation of ...
Behnaz Sheikh Hoseini   +4 more
doaj   +1 more source

On the sub–diffusion fractional initial value problem with time variable order

open access: yesAdvances in Nonlinear Analysis, 2021
We consider a fractional derivative with order varying in time. Then, we derive for it a Leibniz' inequality and an integration by parts formula. We also study an initial value problem with our time variable order fractional derivative and present a ...
Cuesta Eduardo   +3 more
doaj   +1 more source

On the regularity of solutions to elliptic equations [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 1999
We prove that the Meyers’s regularity result for elliptic equations with nonsmooth coefficients and a Dirichlet boundary condition can be generalized for other boundary conditions and for Lipschitz domains.
T. Gallouet, A. Monier
doaj  

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