Results 21 to 30 of about 621 (101)

Исследования напряженно-деформированного состояния геосреды эманационными методами на примере α(t)-модели переноса радона

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
Непрерывный мониторинг вариаций объемной активности радона с целью поиска ее аномальных значений, предшествующих сейсмическим событиям, является одной из эффективных методик исследования напряженно-деформированного состояния геосреды. Предлагается задача
Твёрдый, Д.А.   +2 more
doaj   +1 more source

THE RICCATI EQUATION WITH VARIABLE HEREDITY [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2017
We consider the Riccati differential equation with a fractional derivative of variable order. The introduction of a derivative of a fractional variable order into the initial equation determines the property of the medium — the memory effect or the ...
Tvyordyj D. A.
doaj   +1 more source

Topological Texture-Fractal Processing of Signals and Fields in Radio Physics, Radio Engineering and Radiolocation: Developed Methods and Technologies (1979 – 2022) – Fractal Engineering

open access: yesProceedings of the 32nd International Conference on Computer Graphics and Vision, 2022
The report discusses the main directions of the introduction of textures, fractals, fractional operators, dynamic chaos and methods of nonlinear dynamics to create new information (breakthrough) technologies.
A. Potapov
semanticscholar   +1 more source

The Problem of Determining Kernels in a Two-dimensional System of Viscoelasticity Equations

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
For a two-dimensional system of integro-differential equations of viscoelasticity in an isotropic medium, the direct and inverse problems of determining the stress vector and particle velocity, as well as the diagonal hereditarity matrix, are studied ...
D. K. Durdiev, A. A. Boltaev
doaj   +1 more source

The Problem of Determining Kernels in a Two-dimensional System of Viscoelasticity Equations

open access: yesThe Bulletin of Irkutsk State University. Series Mathematics, 2022
For a two-dimensional system of integro-differential equations of viscoelasticity in an isotropic medium, the direct and inverse problems of determining the stress vector and particle velocity, as well as the diagonal hereditarity matrix, are studied ...
D. Durdiev, A. Boltaev
semanticscholar   +1 more source

Fractal applications in radio electronics as fractal engineering

open access: yesRadioelectronics Nanosystems Information Technologies, 2022
The use of the fractal paradigm is presented - the main directions for introducing textures, fractals, fractional operators, dynamic chaos and methods of nonlinear dynamics for the design and creation of real technical projects in radio electronics ...
A. Potapov
semanticscholar   +1 more source

[Neurocardiogenic syncope and hereditarity].

open access: yesRevista da Associacao Medica Brasileira (1992), 2009
To investigate a possible familial predisposition in neurocardiogenic syncope.Cross-sectional survey with 252 subjects, with positive familial history for syncope, who underwent head-up tilt-test (TT) at Instituto de Cardiologia do Rio Grande do Sul, between September 2001 and September 2005.
Mariana Cristina S, Azevedo   +2 more
openaire   +2 more sources

THE ROLE AND SIGNIFICANCE OF HARMFUL HABITS AND HERITABLE FACTORS IN THE DEVELOPMENT OF CHRONIC VASCULAR DISEASES

open access: yesMEDIS – International Journal of Medical Sciences and Research, 2022
Chronic Arterial Insufficiency of the Limb is a condition of chronical reduction of blood flow delivered from the arteries to a limb. It is also known as Peripheral Arterial Disease (PAD).
M. Mireva, M. Tsekov, E. Naseva
semanticscholar   +1 more source

Gibbs point process approximation: Total variation bounds using Stein's method [PDF]

open access: yes, 2014
We obtain upper bounds for the total variation distance between the distributions of two Gibbs point processes in a very general setting. Applications are provided to various well-known processes and settings from spatial statistics and statistical ...
Schuhmacher, Dominic, Stucki, Kaspar
core   +2 more sources

МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ НЕЛИНЕЙНЫХ ЭРЕДИТАРНЫХ ОСЦИЛЛЯТОРОВ НА ПРИМЕРЕ ОСЦИЛЛЯТОРА ДУФФИНГА С ДРОБНЫМИ ПРОИЗВОДНЫМИ В СМЫСЛЕ РИМАНА-ЛИУВИЛЛЯ

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016
В работе предложена математическая эредитарная модель осциллятора Дуффинга с трением, которая является обобщением ранее известной классической модели осциллятора Дуффинга.
Дробышева, И.В.
doaj   +1 more source

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