Results 81 to 90 of about 5,152,512 (204)
Imminent Localized Precipitation Preceded by a Surge in Cloud‐Base Descent and Reflectivity
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The nowcasting of localized precipitation (LP) is often limited by insufficient observation of the vertical cloud evolution preceding rainfall. Here we systematically tracked rapid cloud development within 2 hr before LP onset, utilizing cloud data collected in 2024 from the millimeter‐wavelength cloud radar network across China, together with
Zhen Zhang +10 more
wiley +1 more source
A generalization of Françoise's algorithm for calculating higher order Melnikov functions
Bulletin des Sciences Mathématiques, 2002 In [J. Differential Equations 146 (2) (1998) 320–335], Françoise gives an algorithm for calculating the first nonvanishing Melnikov function Mℓ of a small polynomial perturbation of a Hamiltonian vector field and shows that Mℓ is given by an Abelian integral.
Jebrane, Ahmed +2 more
openaire +3 more sources
Unlocking Heterobimetallic Architectures in a Symmetric PNNP Ligand Environment
Chemistry – A European Journal, Volume 32, Issue 21, 1 June 2026.A symmetric PNNP ligand enables the modular assembly of heterobimetallic ZnRu and CoRu complexes from a mononuclear Ru(II) precursor. Ligand deprotonation triggers dearomatization and contraction of the metal–metal distance. Combined DFT and QTAIM analyses reveal metallophilic interaction in CoRu but not in ZnRu, highlighting controllable geometric and
Stanislav Melnikov +4 more
wiley +1 more source
Journal of Cosmetic Dermatology, Volume 25, Issue 6, June 2026.ABSTRACT Background Aesthetic medicine is rapidly expanding, yet lack of standardized educational pathways led many healthcare providers (HCPs) to rely on social media influencers for education. The scientific validity of the information shared, however, remains uncertain.
Giovanni Buzzaccarini +15 more
wiley +1 more source
Computation of expansion coefficients of Melnikov functions near a nilpotent center
Computers & Mathematics with Applications, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Junmin Yang, Maoan Han
openaire +3 more sources
, 2007 We present an estimate of perturbative QCD corrections to the decay Z ! Wu ¯ d. A simple approximate approach is described in detail. The difference of masses of MZ and MW is used as an expansion parameter.
Institut Fur Physik +3 more
core
Melnikov theory for weakly coupled nonlinear RLC circuits [PDF]
, 2014 We apply dynamical system methods and Melnikov theory to study small amplitude perturbation of coupled nonlinear RLC systems. In particular we show persistence of such orbits connecting singularities in finite time provided a Melnikov like condition ...
Michal Fečkan +3 more
core +1 more source
Existence of Kink and Antikink Wave Solutions of Singularly Perturbed Modified Gardner Equation
MathematicsIn this paper, the singularly perturbed modified Gardner equation is considered. Firstly, for the unperturbed equation, under certain parameter conditions, we obtain the exact expressions of kink wave solution and antikink wave solution by using the ...
Weifang Yan, Linlin Wang, Min Zhang
doaj +1 more source
Poincar'e-Melnikov-Arnold method for analytic planar maps
, 1996 . The Poincar'e-Melnikov-Arnold method for planar maps gives rise to a Melnikov function defined by an infinite and (a priori) analytically uncomputable sum.
Amadeu Delshams +1 more
core
AlgorithmsIn this article, we propose some extended oscillator models. Various experiments are performed. The models are studied using the Melnikov approach. We show some integral units for researching the behavior of these hypothetical oscillators.
Nikolay Kyurkchiev +4 more
doaj +1 more source