Results 71 to 80 of about 12,351 (211)

Uniformly Convergent Hybrid Numerical Method for Singularly Perturbed Delay Convection-Diffusion Problems

International Journal of Differential Equations, 2021
This paper deals with numerical treatment of nonstationary singularly perturbed delay convection-diffusion problems. The solution of the considered problem exhibits boundary layer on the right side of the spatial domain.
Mesfin Mekuria Woldaregay, Gemechis File Duressa   +1 more
doaj   +1 more source

Current Practices for Analyzing Soils and Sediments via Mössbauer Spectroscopy

Journal of Plant Nutrition and Soil Science, Volume 188, Issue 5, Page 742-773, October 2025.
ABSTRACT Environmental scientists are increasingly returning to Mössbauer spectroscopy (MBS) to reveal details about iron (Fe)‐bearing phases in soils and sediments. MBS is particularly powerful at distinguishing between Fe(II) and Fe(III) and, given appropriate background information, can offer exceptionally precise information on Fe speciation in ...
Aaron Thompson, James M. Byrne, Carolin L. Dreher, Andrew R. C. Grigg, Prachi Joshi, Drew E. Latta, Anke Neumann, Luiza Notini, Katie E. B. O'Neill, Katherine A. Rothwell   +9 more
wiley   +1 more source

A business ethics perspective on constructive deviant behavior in organizations: A literature review and an integrated framework proposal

Business Ethics, the Environment &Responsibility, Volume 34, Issue 4, Page 1412-1431, October 2025.
Abstract Constructive Deviant Behavior (CDB) raises an ethical dilemma that poses a significant challenge within the realm of business ethics. This ethical dilemma is the extent to which individuals should be allowed, or even encouraged, to challenge established norms in the name of organizational and stakeholder well‐being before compromising ethical ...
Irina‐Alina Popescu, Antonio Cimino, Ilda Maria Coniglio   +2 more
wiley   +1 more source

Disentangling the effects of climate change in a mountain lake through community structure analysis

Limnology and Oceanography, Volume 70, Issue 8, Page 2142-2157, August 2025.
Abstract Pressures of climate change may trigger regime shifts in ecosystems. Identifying signs of these pressures before the critical transition remains challenging, and it could be useful to anticipate the regime shift. In this research, while exploiting the case of a lacustrine ecosystem, which passed from an unvegetated, phytoplankton‐dominated ...
Giulia Bertoletti, Marco Scotti, Giampaolo Rossetti, Antonio Bodini   +3 more
wiley   +1 more source

Boundary-Value Problems for almost Nonlinear Singularly Perturbed Systems of Ordinary Differential Equations [PDF]

, 2000
A boundary-value problems for almost nonlinear singularly perturbed systems of ordinary differential equations are considered. An asymptotic solution is constructed under some assumption and using boundary functions and generalized inverse matrix and ...
Karandjulov, L., Stoyanova, Y.
core  

A Layer-Adapted Numerical Method for Singularly Perturbed Partial Functional-Differential Equations

Axioms
This article describes an effective computing method for singularly perturbed parabolic problems with small negative shifts in convection and reaction terms. To handle the small negative shifts, the Taylor series expansion is used.
Ahmed A. Al Ghafli, Fasika Wondimu Gelu, Hassan J. Al Salman   +2 more
doaj   +1 more source

Neural Ordinary Differential Equations for Model Order Reduction of Stiff Systems

International Journal for Numerical Methods in Engineering, Volume 126, Issue 12, 30 June 2025.
ABSTRACT Neural Ordinary Differential Equations (ODEs) represent a significant advancement at the intersection of machine learning and dynamical systems, offering a continuous‐time analog to discrete neural networks. Despite their promise, deploying neural ODEs in practical applications often encounters the challenge of stiffness, a condition where ...
Matteo Caldana, Jan S. Hesthaven
wiley   +1 more source

Scaling Exponents of Turbulent Static Pressure Structure Function in the Inertial Subrange

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract The measured variations in the turbulent static pressure structure function Dpp(r) ${D}_{pp}(r)$ with scale r $r$ in the roughness sublayer above a subarctic forest are empirically shown to exhibit exponents that are smaller than r4/3 ${r}^{4/3}$ predicted for the inertial subrange (ISR).
Gabriel G. Katul, Toprak Aslan, Mika Aurela   +2 more
wiley   +1 more source

Quartic B-Spline Technique for Third-Order Linear Singularly Perturbed Boundary Value Problem with Discontinuous Source Term [PDF]

International Journal of Mathematical, Engineering and Management Sciences
In this paper, we developed an effective computational technique for addressing third-order linear singularly perturbed problems having the source term discontinuous.
Shilpkala T. Mane, Ram Kishun Lodhi
doaj   +1 more source

Singular perturbation boundary and interior layers problems with multiple turning points

Boundary Value Problems
In the study of singularly perturbed boundary problems with turning points, the solution undergoes sharp changes near these points and exhibits various interior phenomena.
Xinyu Wang, Na Wang
doaj   +1 more source