Results 91 to 100 of about 4,324 (212)

A Class of Implicit Fractional $\psi$-Hilfer Langevin Equation with Time Delay and Impulse in the Weighted Space

Communications in Advanced Mathematical Sciences
In this paper, the Ulam-Hyers-Rassias stability is discussed and the existence and uniqueness of solutions for a class of implicit fractional $\psi$-Hilfer Langevin equation with impulse and time delay are investigated.
Hamid Lmou, Khalid Hilal, Ahmed Kajounı, Ayoub Louakar   +3 more
doaj   +1 more source

Nonlocal boundary value problems for integro-differential Langevin equation via the generalized Caputo proportional fractional derivative

Boundary Value Problems, 2020
Results reported in this paper study the existence and stability of a class of implicit generalized proportional fractional integro-differential Langevin equations with nonlocal fractional integral conditions.
Bounmy Khaminsou, Chatthai Thaiprayoon, Jehad Alzabut, Weerawat Sudsutad   +3 more
doaj   +1 more source

Structure and Dynamics of Ultra‐Low‐Crosslinked Microgels

Journal of Polymer Science, EarlyView.
This study reveals the relationship between microgel internal architecture, zero‐shear viscosity, structural relaxation time, and the ability of ultra‐soft colloidal suspensions to remain viscous fluids under overcrowded conditions. This interplay between microgel compressibility and zero‐shear viscosity is further highlighted by a colloid‐polymer ...
Nikolaos A. Burger, Alexander V. Petrunin, Ann E. Terry, Ralf Schweins, Andrea Scotti   +4 more
wiley   +1 more source

Systematic derivation of Generalized Langevin Equations for coarse-graining and bridge-scaling procedures [PDF]

, 2020
In many branches of physics, one must often deal with processes involving a huge number of degrees of freedom. Instead of describing the dynamics of each individual of them, one rather wants to characterize the process of interest via a small set of ...
MEYER, Hugues
core  

On the environmental modes for the generalized Langevin equation

The Journal of Chemical Physics, 2015
The generalized Langevin equation (GLE) is used widely in molecular science and time series analysis as it offers a convenient low-dimensional description for large systems. There the dynamical effect of the environment interacting with the low-dimensional system is expressed as friction and random force.
openaire   +2 more sources

Edge‐preserving noise for diffusion models

Computer Graphics Forum, EarlyView.
Abstract Classical diffusion models typically rely on isotropic Gaussian noise, treating all regions uniformly and overlooking structural information important for high‐quality generation. We introduce an edge‐preserving diffusion process that generalizes isotropic models via a hybrid noise scheme with an edge‐aware scheduler that smoothly transitions ...
Jente Vandersanden, Sascha Holl, Xingchang Huang, Gurprit Singh   +3 more
wiley   +1 more source

Aptamer‐mediated outer membrane destabilization overcomes low permeability resistance in Pseudomonas aeruginosa

The FEBS Journal, EarlyView.
DNA aptamers, Apt 60 and Apt 173, target the BamA protein to compromise outer membrane integrity in Pseudomonas aeruginosa, making it susceptible to Azithromycin, an antibiotic that is otherwise poorly effective due to the low‐permeability membrane.
Rupany Selvam, Michelle Khai Khun Yap, Rafael Giacomazzi, Sérgio F. Sousa, Hock Siew Tan   +4 more
wiley   +1 more source

When Density Matters: Hydraulic and Salinity Evolution in Groundwater‐Fed Pit Lakes in Semiarid and Arid Climates

Groundwater, EarlyView.
Pit lakes in semiarid and arid regions are often assumed to be terminal sinks for groundwater following mine closure. Using synthetic numerical modeling, we demonstrate that evaporation‐driven density gradients can reverse this behavior, transforming pit lakes into throughflow systems and potentially increasing salinity in adjacent aquifers.
Birte Moser, Peter G. Cook, Janek Greskowiak, Ilka Wallis   +3 more
wiley   +1 more source

Beat‐to‐beat variability of ventricular repolarization reveals sex‐specific instability and proarrhythmic risk

The Journal of Physiology, EarlyView.
Abstract figure legend A mechanistic framework linking sex‐dependent dynamical instability to proarrhythmic risk. Sex‐specific human ventricular models show that upstream modulators, including biological sex, hormones, drugs and heart disease, promote steeper APD restitution in female than male and enhance dynamical instability.
Daisuke Sato, Lorenzo Santini, Raffaele Coppini, Eleonora Grandi   +3 more
wiley   +1 more source

Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic

Communications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1973-2102, August 2026.
ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley   +1 more source