Results 41 to 50 of about 221,434 (164)

Mathematical Modelling for Predicting Thermal Properties of Selected Limestone

open access: yesBuildings, 2022
Due to a lack of geotechnical and geothermal studies on Jordanian limestone, this paper aims to provide the thermal properties, including thermal conductivity, thermal diffusivity, and specific heat, using the Hot Disk Transient Plane Source (TPS) 2200 ...
Abdulla A. Sharo   +4 more
doaj   +1 more source

Qualitative properties of mathematical model for data flow

open access: yesNetworks & Heterogeneous Media, 2021
<p style='text-indent:20px;'>In this paper, properties of a recently proposed mathematical model for data flow in large-scale asynchronous computer systems are analyzed. In particular, the existence of special weak solutions based on propagating fronts is established.
Hauck, CD, Herty, M, Visconti, G
openaire   +6 more sources

Mathematical Properties of Variable Topological Indices [PDF]

open access: yesSymmetry, 2020
A topic of current interest in the study of topological indices is to find relations between some index and one or several relevant parameters and/or other indices. In this paper we study two general topological indices Aα and Bα, defined for each graph H=(V(H),E(H)) by Aα(H)=∑ij∈E(H)f(di,dj)α and Bα(H)=∑i∈V(H)h(di)α, where di denotes the degree of the
openaire   +1 more source

Journal impact factor: Mathematical and statistical properties

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
Using a commonly agreed definition of the journal impact factor, its various applications in the mathematical modeling of scientific research were investigated.
A. M. Elizarov, V. V. Pislyakov
doaj   +1 more source

Research of technological characteristics of dispersed molding materials / Dispersinių formavimo medžiagų technologinių savybių tyrimas

open access: yesMokslas: Lietuvos Ateitis, 2015
One of the important problems of science and practice is to increase the productivity of manufacturing products from dispersed materials through the modernization of existing equipment and the introduction of new technological processes. The mathematical
Vitaliy Kulikov   +3 more
doaj   +1 more source

Modelling of structures and properties of polymer-bitumen binding methods of experiment planning

open access: yesВестник СибАДИ, 2017
With application of a method of mathematical planning of experiment mathematical models of technological and operational properties polimerno-bitumen knitting on the basis of viscous road bitumen, polymer of type styrene-butadien-styrene and the softener
V. D. Galdina, M. S. Chernogorodova
doaj   +1 more source

A Spatially Bounded Airspace Axiom

open access: yesAxioms, 2022
Free Route Airspace (FRA), a new concept implemented across European airspace, is designed to eliminate the adverse effects of air traffic, reduce fuel consumption, simplify and expand flight planning.
Peter Szabó   +2 more
doaj   +1 more source

Qualitative properties of monotone linear parabolic operators

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
When we construct mathematical or numerical models in order to solve a real-life problem, it is important to preserve the characteristic properties of the original process. The models have to possess the equivalents of these properties. Parabolic partial
István Faragó, Róbert Horváth
doaj   +1 more source

Reverse mathematics and Ramsey's property for trees

open access: yesThe Journal of Symbolic Logic, 2010
AbstractWe show, relative to the base theory RCA0: A nontrivial tree satisfies Ramsey's Theorem only if it is biembeddable with the complete binary tree. There is a class of partial orderings for which Ramsey's Theorem for pairs is equivalent to ACA0. Ramsey's Theorem for singletons for the complete binary tree is stronger than .
Jared Corduan   +2 more
openaire   +3 more sources

Research of Mobile Machine Turn on a Rough Road with a Flat Complex Model

open access: yesМеханика машин, механизмов и материалов, 2013
The paper presents the principles of the mobile chassis machine mathematical model creation that combines: dynamic steering system, suspension support system, interacting with the support surface, represented by random irregularities.
V.V. Mikhailau, A.G. Snitkov
doaj  

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