Results 11 to 20 of about 153,693 (265)
Leveraging Electrical Network Models for Solving Fick’s Second Law of Diffusion in Membrane Gas Permeation [PDF]
MembranesThe permeation of gases through membranes is a fundamental process with wide-ranging applications, from gas separation and fuel cell technology to respiratory physiology.
Zheng Cao +2 more
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Finite differences in finite characteristic
Journal of Algebra, 2006 For a Dedekind domain \(D\) with quotient field \(K\) let \(\text{Int}^{[k]}(D)\) be the ring of all \(K\)-polynomials \(f\) having the property that \(f\) as well as all polynomials \(\Delta_{h_k}(\Delta_{h_{k-1}}(\dots (\Delta_{h_1}(f)))\dots)\), (where \(\Delta_hf(X)=(f(X+h)-f(X))/h\)) map \(D\) into \(D\) for every choice of \(h_1,\dots,h_k\).
exaly +3 more sources
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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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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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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Finite Difference of Adjoint or Adjoint of Finite Difference? [PDF]
Monthly Weather Review, 1997 Abstract Adjoint models are used for atmospheric and oceanic sensitivity studies in order to efficiently evaluate the sensitivity of a cost function (e.g., the temperature or pressure at some target time tf, averaged over some region of interest) with respect to the three-dimensional model initial conditions. The time-dependent sensitivity, that is the
Sirkes, Ziv, Tziperman, Eli
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Sensitivity Analysis for Transient Thermal Problems Using the Complex-Variable Finite Element Method
Applied Sciences, 2022 Solving transient heat transfer equations is required to understand the evolution of temperature and heat flux. This physics is highly dependent on the materials and environmental conditions. If these factors change with time and temperature, the process
Juan-Sebastian Rincon-Tabares +5 more
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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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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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