Results 41 to 50 of about 308 (136)
Water Resources Research, Volume 62, Issue 3, March 2026.Abstract Climate change alters hydrological and ice conditions, but how these changes affect turbulence beneath ice cover has been poorly studied. This study presents a multi‐year observational analysis of near‐bed turbulence under ice cover in a subarctic meandering river reach.
Karoliina Lintunen +6 more
wiley +1 more source
Continuous families of solitary waves in non-symmetric complex potentials: A Melnikov theory approach [PDF]
, 2018 The existence of stationary solitary waves in symmetric and non-symmetric complex potentials is studied by means of Melnikov's perturbation method.
Bountis, Anastassios +4 more
core +2 more sources
Horseshoes and Arnold Diffusion for Hamiltonian Systems on Lie Groups [PDF]
, 1983 not ...
Holmes, Philip J., Marsden, Jerrold E.
core
An analytical study of transport, mixing and chaos in an unsteady vortical flow [PDF]
, 1990 We examine the transport properties of a particular two-dimensional, inviscid incompressible flow using dynamical systems techniques. The velocity field is time periodic and consists of the field induced by a vortex pair plus an oscillating strainrate ...
Leonard, A., Rom-Kedar, V., Wiggins, S.
core
Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.Abstract Permafrost degradation under a warming climate has altered hydrological and biogeochemical processes across the Arctic. Although increasing fluxes of weathering‐derived ions (e.g., Ca2+, Mg2+, and SO42−) have been reported in Arctic rivers, the underlying mechanisms and hotspots within basins remain poorly understood due to limited analysis of
Y. Tashiro +10 more
wiley +1 more source
, 2023 In high-speed maritime operations, the broaching phenomenon can pose a significant risk when navigating in following/quartering seas. The occurrence of this phenomenon can result in a violent yaw motion, regardless of the steering effort, which, in turn,
Maki, Atsuo +2 more
core
Soil Science Society of America Journal, Volume 90, Issue 1, January/February 2026.Abstract This paper establishes standardized terminology and field documentation protocols for cryostructures and cryogenic soil structures in permafrost‐affected soils and provides brief guidance on descriptions of ground ice morphology and ice volume estimates.
Megan L. Andersen +8 more
wiley +1 more source
Singular Separatrix Splitting and the Melnikov Method: An Experimental Study [PDF]
Experimental Mathematics, 1999 We consider families of analytic area-preserving maps depending on two pa- rameters: the perturbation strength E and the characteristic exponent h of the origin. For E=0, these maps are integrable with a separatrix to the origin, whereas they asymptote to flows with homoclinic connections as h->0+.
Delshams, Amadeu, Ramírez-Ros, Rafael
openaire +2 more sources
Nomenclature and typification of sectional names in Carex (Cyperaceae)
TAXON, Volume 74, Issue 6, Page 1543-1568, December 2025.Abstract This paper presents an updated survey of all the published names at the section rank in Carex and its formerly accepted satellite genera. We included related names at other ranks when relevant. We address validity, legitimacy, priority, typification, and – if relevant – synonymy.
Pedro Jiménez‐Mejías +6 more
wiley +1 more source
Probing the local structure of Bi2O3 chemical derivatives: the neglected cation sublattice
Acta Crystallographica Section B, Volume 81, Issue 6, Page 595-604, December 2025.The importance of the cation sublattice in influencing both the average and local structures of δ‐Bi2O3‐like phases is highlighted. It also reveals the inadequacy of conventional average structural analysis methods in describing comprehensively the structure of real materials.High‐resolution synchrotron X‐ray diffraction data confirm the stabilization ...
Sikhumbuzo M. Masina +5 more
wiley +1 more source