Results 21 to 30 of about 2,845,553 (249)

Direct numerical simulation of turbulence at lower costs [PDF]

, 1995
Direct Numerical Simulation (DNS) is the most accurate, but also the most expensive, way of computing turbulent flow. To cut the costs of DNS we consider a family of second-order, explicit one-leg time-integration methods and look for the method with the
Veldman, A.E.P., Verstappen, R.W.C.P., Verstappen, R.W.C.P.,, Veldman, A.E.P.,, R.W.C.P. Verstappen, A.E.P. Veldman   +5 more
core   +3 more sources

Analysis of formulas for numerical differentiation of functions with large gradients on a Bakhvalov mesh

Учёные записки Казанского университета: Серия Физико-математические науки, 2021
The article gives an estimate of the error of the classical formulas for the numerical differentiation of a function of one variable with large gradients in the exponential boundary layer.
N.A. Zadorin
doaj   +1 more source

Micro segregation rates of liquid Fe-Ni-S metal in natural silicate-metal systems: A combined experimental and numerical study [PDF]

, 2011
We present results of an image‐based numerical model aimed at quantifying the microsegregation and flow of liquid metal in meteorites prior to the onset of silicate melting. The sample material is the H6 chondrite Kernouvé.
Petford, Nick; id_orcid, Tracy Rushmer, Petford, Nick, Rushmer, Tracy, Nick Petford   +4 more
core   +1 more source

USP18 is an essential regulator of muscle cell differentiation and maturation [PDF]

, 2023
The ubiquitin proteasomal system is a critical regulator of muscle physiology, and impaired UPS is key in many muscle pathologies. Yet, little is known about the function of deubiquitinating enzymes (DUBs) in the muscle cell context.
den Hamer, Bianca, Hamer, B. den, Vendrell, Iolanda, Olie, C.S., Olie, Cyriel Sebastiaan, Kessler, B.M., Raz, V., Mei, Hailiang, de Greef, Jessica C, Pinto-Fernandez, A., Greef, J.C. de, Vendrell, I., Pinto-Fernández, Adán, Damianou, A., van der Wal, Erik, Kessler, Benedikt M, Wal, E. van der, Mei, H.L., Damianou, Andreas, Raz, Vered   +19 more
core   +1 more source

Research on the accuracy characteristics of methods for numerical differentiation and integration of measurement signals about motion parameters

Технічна інженерія
The article presents an assessment of the accuracy characteristics of the methods of numerical differentiation and integration used in a computerized device for measuring the parameters of the motion of objects.
Yu.O. Podchashynskyi, O.O. Luhovykh
doaj   +1 more source

Interpolation on the Bakhvalov mesh in the presence of an exponential boundary layer

Учёные записки Казанского университета: Серия Физико-математические науки, 2019
Interpolation of the function of one variable with large gradients in the region of the exponential boundary layer was studied. The interpolated function corresponds to solution of a boundary value problem for an ordinary differential equation of the ...
I.A. Blatov, N.A. Zadorin
doaj   +1 more source

Configuring Artificial Neural Networks for stock market predictions

Technological and Economic Development of Economy, 2014
Making accurate predictions for stock market values with advanced non-linear methods creates opportunities for business practitioners, especially nowadays, with highly volatile stock market evolutions.
Gheorghe Ruxanda, Laura Maria Badea
doaj   +1 more source

Numerical Differentiation

, 2022
Tema ovog rada je numeričko deriviranje. Za početak ćemo iskazati Taylorov teorem, te koristeći Taylorovu formulu izvesti nekoliko formula za aproksimaciju prve derivacije funkcije. Zatim ćemo izvesti Lagrangeov oblik interpolacijskog polinoma i pokazati
Semeš, Borna
core   +2 more sources

Compact Finite Difference Schemes: A Review of Fundamentals, Applications, and Practical Implementation

Mathematics
Compact finite difference schemes approximate spatial derivatives through implicit relations between neighboring grid points. Despite using compact stencils and relatively simple algebraic structures, these schemes achieve high-order accuracy and ...
Andrea Arroyo Ramo, J. Alberto Conejero, María Jezabel Perez-Quiles, Sergio Hoyas   +3 more
doaj   +1 more source

Spectral analysis of variable-order multi-terms fractional differential equations

Open Physics, 2023
In this work, a numerical scheme based on shifted Jacobi polynomials (SJPs) is deduced for variable-order fractional differential equations (FDEs). We find numerical solution of consider problem of fractional order. The proposed numerical scheme is based
Shah Kamal, Abdeljawad Thabet, Jeelani Mdi Begum, Alqudah Manar A.   +3 more
doaj   +1 more source