Results 71 to 80 of about 1,301,601 (206)

On the Gierer-Meinhardt System with Saturation [PDF]

open access: yes, 2004
We consider the following shadow Gierer-Meinhardt system with saturation: \left\{\begin{array}{l} A_t=\epsilon^2 \Delta A -A + \frac{A^2}{ \xi (1+k A^2)} \ \ \mbox{in} \ \Omega \times (0, \infty),\\ \tau \xi_t= -\xi +\frac{1}{|\Omega|} \int_\Om A^2 ...
Winter, M, Wei, J
core   +1 more source

Love of the Job: What It Is, How to Measure It, and Why It Matters for Work Outcomes

open access: yesHuman Resource Management, Volume 65, Issue 3, Page 925-948, May/June 2026.
ABSTRACT Employee retention, motivation, performance, and well‐being remain enduring priorities in human resource management, yet existing constructs such as engagement, commitment, and satisfaction do not fully capture the depth of emotional attachment that some employees feel towards their jobs.
Michelle Inness   +8 more
wiley   +1 more source

Non-Polynomial Spline for Singularly Perturbed Differential-Difference Equation with Mixed Shifts and Layer Behavior [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
Various physical phenomena give rise to singularly perturbed differential equations with mixed shifts. Due to multiple parameters, singularly perturbed mixed delay boundary value problems are challenging to solve.
Shilpa Malge , Ram Kishun Lodhi
doaj   +1 more source

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz

open access: yesAdvanced Materials, Volume 38, Issue 16, 17 March 2026.
Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim   +8 more
wiley   +1 more source

Existence and stability of singular patterns in a Ginzburg–Landau equation coupled with a mean field [PDF]

open access: yes, 2002
We study singular patterns in a particular system of parabolic partial differential equations which consist of a Ginzburg–Landau equation and a mean field equation.
Norbury, J   +9 more
core   +1 more source

Semistable Operators and Singularly Perturbed Differential Equations

open access: yesJournal of Mathematical Analysis and Applications, 1999
The purpose of the paper is to prove the existence of \(\lim_{s\to\infty} \exp(sA+B)\) where \(A\), \(B\) are bounded linear operators in a Banach space \(X\) and \(A\) is semistable (i.e., if \(\sigma(A)\) denotes the spectrum of \(A\) and \(H^-\) denotes the open left half-plane of the complex plane \(\mathbb{C}\), then \(\sigma(A)\subset H^-\cup\{0\}
Koliha, J.J, Tran, Trung Dinh
openaire   +1 more source

Laterally Oriented Dendritic Passivation via In Situ Zn Reconstruction for Stabilizing NiMo Catalysts under Dynamic Electrolysis

open access: yesAdvanced Science, Volume 13, Issue 16, 18 March 2026.
This study highlights the effectiveness of Zn‐induced dendrite layers in enhancing the durability of NiMo HER catalysts under dynamic electrochemical conditions. Through in situ dendritic passivation, the Zn‐NiMo catalyst preserves catalytic active sites and mitigates irreversible Ni oxidation/hydroxylation during repeated load fluctuation.
Taeyoung Jeong   +2 more
wiley   +1 more source

Degeneracy Sensing Light Detection and Ranging‐Inertial Simultaneous Localization and Mapping with Dual‐Layer Resistant Odometry and Scan‐Context Loop‐Closure Detection Backend in Diverse Environments

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This paper presents a degeneracy‐aware light detection and ranging (LiDAR)‐inertial framework that enhances LiDAR simultaneous localization and mapping performance in challenging environments. The proposed system integrates a dual‐layer robust odometry frontend with a Scan‐Context‐based loop‐closure detection backend.
Haoming Yang   +4 more
wiley   +1 more source

On the Stationary Cahn-Hilliard Equation: Bubble Solutions [PDF]

open access: yes, 1998
We study stationary solutions of the Cahn--Hilliard equation in a bounded smooth domain which have an interior spherical interface (bubbles). We show that a large class of interior points (the ``nondegenerate peak'' points) have the following ...
Winter, M   +3 more
core   +1 more source

On a set of singularly perturbed convection–diffusion equations

open access: yesJournal of Computational and Applied Mathematics, 2005
The aim of the material is to study the convergence properties of a first-order upwind difference scheme applied to a weakly coupled system of singularly perturbed convection-diffusion equations: \[ \begin{aligned} -\varepsilon_1 u^{\prime\prime}_1- a_1 u_1'\quad &\text{in }(0,1),\quad u_1(0)= u_1(1)= 0,\\ -\varepsilon_2 u^{\prime\prime}_2- a_2 u_2 ...
openaire   +2 more sources

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