RIP - Sängerin Bonnie Tyler ist im Alter von 75 Jahren gestorben
https://www.gala.de/stars/news/bonnie-tyler-ist-tot--saengerin-lag-nach-not-op-im-kuenstlichen-koma-24596750.html
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POL-GÖ: (164/2026) 14 Jahre alter Tyler L. aus Hann. Münden vermisst - Polizei bittet um Mithilfe Göttingen (ots) - Hann. Münden Montagabend, 25. Mai 2026, gegen 20.15 Uhr HANN. MÜNDEN (ab) - Seit Montagabend (25.05.26) wird der 14 Jahre alte Tyler L. (Foto) aus Hann. Münden im Landkreis Göttingen vermisst. Nach bisherigen Erkenntnissen ... https://…
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Electrolyte flows under magnetic fields: Manning-like counterion condensation in one dimension
Yoav Tsori, Hannes Uecker
https://arxiv.org/abs/2605.18076 https://arxiv.org/pdf/2605.18076 https://arxiv.org/html/2605.18076
arXiv:2605.18076v1 Announce Type: new
Abstract: We present a theoretical framework for unidirectional electromagnetohydrodynamic flow of dilute electrolytes under perpendicular magnetic fields. Starting from the Navier--Stokes equation coupled with the Poisson--Nernst--Planck formulation, we show that the problem admits a sequential decoupling: the Stokes equation is solved first to obtain the velocity profile, which defines a hydrodynamic potential entering the Nernst--Planck description of ions. This Lorentz-force-induced potential competes with electrostatic attraction and significantly alters ionic distributions. We analyze this mechanism in two canonical geometries. In planar Couette shear, it produces a Manning--Oosawa-like condensation transition in one dimension, a phenomenon absent in classical electrostatics. We derive an eigenvalue equation predicting a sharp threshold between counterion enrichment and depletion at the charged wall. In cylindrical Taylor--Couette flow, the same effect shifts the classical Manning criterion by a magnetic parameter, enabling tunable control of condensation. These findings extend Manning--Oosawa phenomenology to driven, non-equilibrium systems and provide a basis for magnetic manipulation of screening in electrolytes, with implications for microfluidics, electrochemical systems, and nonlinear boundary-value theory.
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