Results 1 to 10 of about 148,221 (168)
Reactive-Advective-Diffusive Models for the Growth of Gliomas Treated with Radiotherapy
Semina: Ciências Exatas e Tecnológicas, 2023 Gliomas are malignant brain tumors responsible for 50% of primary human brain cancer cases. They have a combination of rapid growth and invasiveness, and high fatality rates with a median survival time of one year.
Bruno da Silva Machado +2 more
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Quasi-harmonic self-oscillations in discrete time: analysis and synthesis of dynamic systems
Физика волновых процессов и радиотехнические системы, 2022 For sampling of time in a differential equation of movement of Thomson type oscillator (generator) it is offered to use a combination of the numerical method of finite differences and an asymptotic method of the slowl-changing amplitudes.
Valery V. Zaitsev, Alexander V. Karlov
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Particularities of mathematical modeling of deformation processes for arched and panel designs of composites with large displacements and rotation angles [PDF]
INCAS Bulletin, 2020 In aerospace systems and automotive industry flexible elastic and thin-walled structures are widely used. The adequate mathematical models are in the process of development as well as numerical algorithms for examination of the features of processes of ...
Vladimir G. DMITRIEV +2 more
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Analysis of Beams on Non-Linear Elastic Winkler Foundation [PDF]
Engineering and Technology Journal, 2005 This paper deals with thin beams resting on non-linear Winkler foundations by using the secant modulus approach to specify the modulus of subgrade reaction.
Mustafa Al-Ani
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International Journal for Computational Civil and Structural Engineering, 2022 In this paper, a mathematical model is considered that allows one to determine the stress-strain state of a spherical shell made of titanium alloy VT1-0, the external load is assumed to be transverse uniformly distributed, acting on the outer surface ...
Aleksander Treshchev +1 more
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Multiplicative finite difference methods [PDF]
Quarterly of Applied Mathematics, 2009 Based on multiplicative calculus, the finite difference schemes for the numerical solution of multiplicative differential equations and Volterra differential equations are presented. Sample problems were solved using these new approaches.
Rıza, Mustafa +2 more
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A semi-analytic method for solving singularly perturbed twin-layer problems with a turning point
Mathematical Modelling and Analysis, 2023 This computational study investigates a class of singularly perturbed second-order boundary-value problems having dual (twin) boundary layers and simple turning points.
Süleyman Cengizci +2 more
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An explicit symplectic approach to solving the wave equation in moving media
Engineering Reports, 2023 An explicit approach using symplectic time integration in conjunction with traditional finite difference spatial derivatives to solve the wave equation in moving media is presented.
Venkatesh Inguva +6 more
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Fluids, 2021 An Eulerian method to numerically solve incompressible bifluid problems with high density ratio is presented. This method can be considered as an improvement of the Ghost Fluid method, with the specificity of a sharp second-order numerical scheme for the
Michel Bergmann, Lisl Weynans
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Acoustic Forward Model for Guided Wave Propagation and Scattering in a Pipe Bend
Sensors, 2022 The sections of pipe bends are hot spots for wall thinning due to accelerated corrosion by fluid flow. Conventionally, the thickness of a bend wall is evaluated by local point-by-point ultrasonic measurement, which is slow and costly.
Carlos-Omar Rasgado-Moreno +3 more
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