Zobrazeno 1 - 10
of 492
pro vyhledávání: '"Virnau, P."'
Publikováno v:
J. Chem. Phys. 161, 224905 (2024)
We explore the effect of Couette flow on knotted linear polymer chains with extensive Molecular Dynamics (MD) simulations. Hydrodynamic interactions are accounted for by means of Multi-Particle Collision Dynamics (MPCD). The polymer chain, containing
Externí odkaz:
http://arxiv.org/abs/2412.06577
Publikováno v:
J. Chem. Phys. 161, 144904 (2024)
A central paradigm of polymer physics states that chains in melts behave like random walks as intra- and interchain interactions effectively cancel each other out. Likewise, $\theta$-chains, i.e., chains at the transition from a swollen coil to a glo
Externí odkaz:
http://arxiv.org/abs/2411.13357
Autor:
Datta, Ranajay, Virnau, Peter
We investigate with numerical simulations the influence of topology and stiffness on macroscopic rheological properties of polymer melts consisting of unknotted, knotted or concatenated rings. While melts of flexible, knotted oligomer rings tend to b
Externí odkaz:
http://arxiv.org/abs/2410.13797
Autor:
Raab, Klaus, Schmitt, Maurice, Brems, Maarten A., Rothörl, Jan, Kammerbauer, Fabian, Krishnia, Sachin, Kläui, Mathias, Virnau, Peter
Magnetic skyrmions, topologically stabilized chiral magnetic textures with particle-like properties have so far primarily been studied statically. Here, we experimentally investigate the dynamics of skyrmion ensembles in metallic thin film conduits w
Externí odkaz:
http://arxiv.org/abs/2403.07397
Autor:
Alexander Bauer, Larissa Virnau, Eric Sven Kroeber, Heidrun Lingner, Markus Bleckwenn, Thomas Frese, Kathleen Denny, Annett Braesigk, Tobias Deutsch
Publikováno v:
Scandinavian Journal of Primary Health Care, Pp 1-11 (2024)
Background Primary care is integral to healthcare systems extending beyond traditional illness management to include preventive care, chronic disease management, and health promotion. Practice-based research networks (PBRNs) have emerged as essential
Externí odkaz:
https://doaj.org/article/ca726593a2c44b81873637cf138279b7
We investigate with numerical simulations the molecular origin of viscosity in melts of flexible and semiflexible oligomer rings in comparison to corresponding systems with linear chains. The strong increase of viscosity with ring stiffness is linked
Externí odkaz:
http://arxiv.org/abs/2305.15886
Via computer simulations we study evolution dynamics in systems of continuously moving Active Brownian Particles. The obtained results are discussed against those from the passive 2D Ising case. Following sudden quenches of uniform configurations to
Externí odkaz:
http://arxiv.org/abs/2212.06477
We investigate knotting probabilities of long double-stranded DNA strands in a coarse-grained Kratky-Porod model for DNA with Monte Carlo simulations. Various ionic conditions are implemented by adjusting the effective diameter of monomers. We find t
Externí odkaz:
http://arxiv.org/abs/2211.07326
Publikováno v:
Protein Science. 2022; 31( 8):e4380
The computer artificial intelligence system AlphaFold has recently predicted previously unknown three-dimensional structures of thousands of proteins. Focusing on the subset with high-confidence scores, we algorithmically analyze these predictions fo
Externí odkaz:
http://arxiv.org/abs/2207.07410
Autor:
Gruber, Raphael, Zázvorka, Jakub, Brems, Maarten A., Rodrigues, Davi R., Dohi, Takaaki, Kerber, Nico, Seng, Boris, Everschor-Sitte, Karin, Virnau, Peter, Kläui, Mathias
A key issue for skyrmion dynamics and devices are pinning effects present in real systems. While posing a challenge for the realization of conventional skyrmionics devices, exploiting pinning effects can enable non-conventional computing approaches i
Externí odkaz:
http://arxiv.org/abs/2201.01618