Results 41 to 50 of about 14,490,979 (304)

The Finite Volume WENO with Lax–Wendroff Scheme for Nonlinear System of Euler Equations

open access: yesMathematics, 2018
We develop a Lax–Wendroff scheme on time discretization procedure for finite volume weighted essentially non-oscillatory schemes, which is used to simulate hyperbolic conservation law.
Haoyu Dong, Changna Lu, Hongwei Yang
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Dynamics of Structures with Distributed Gyroscopes: Modal Discretization Versus Spatial Discretization

open access: yesApplied Sciences, 2019
In this study, two discretization numerical methods, modal discretization and spatial discretization methods, were proposed and compared when applied to the gyroscopic structures.
Xiao-Dong Yang   +3 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Application of the multigrid method to solve the convection-diffusion equation using an implicit scheme for the discontinuous Galerkin method

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. The development of numerical methods for solving initial-boundary value problems for partial differential equations remains highly relevant today.
Ruslan V. Zhalnin, Michael S. Nefedov
doaj   +1 more source

New Stability Tests for Discretized Fractional-Order Systems Using the Al-Alaoui and Tustin Operators

open access: yesComplexity, 2018
This paper provides new results on a stable discretization of commensurate fractional-order continuous-time LTI systems using the Al-Alaoui and Tustin discretization methods.
Rafał Stanisławski   +2 more
doaj   +1 more source

LDG schemes with second order implicit time discretization for a fractional sub-diffusion equation

open access: yesResults in Applied Mathematics, 2019
In this paper, we propose new local discontinuous Galerkin (LDG) schemes for solving a time fractional sub-diffusion equation. The new LDG schemes is constructed rely on the splitting of time fractional derivative and space derivative.
Can Li, Xiaorui Sun, Fengqun Zhao
doaj   +1 more source

An Energy Consistent Discretization of the Nonhydrostatic Equations in Primitive Variables

open access: yesJournal of Advances in Modeling Earth Systems, 2020
We derive a formulation of the nonhydrostatic equations in spherical geometry with a Lorenz staggered vertical discretization. The combination conserves a discrete energy in exact time integration when coupled with a mimetic horizontal discretization ...
Mark A. Taylor   +5 more
doaj   +1 more source

A Discrete-Time State Estimation for Nonlinear Systems With Noises

open access: yesIEEE Access, 2020
This paper proposes a discrete-time observer to estimate states of continuous-time nonlinear systems with presences of noises. Most conventional discrete-time state observers are designed using discrete-time models, which are derived by applying the ...
Triet Nguyen-Van
doaj   +1 more source

Spectral discretization of the time-dependent Navier-Stokes problem with mixed boundary conditions

open access: yesAdvances in Nonlinear Analysis, 2022
In this work, we handle a time-dependent Navier-Stokes problem in dimension three with a mixed boundary conditions. The variational formulation is written considering three independent unknowns: vorticity, velocity, and pressure.
Abdelwahed Mohamed, Chorfi Nejmeddine
doaj   +1 more source

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