English
Related papers

Related papers: Ionic Clusters vs. Shear Viscosity in Aqueous Amin…

200 papers

We report shear viscosity of heavy water supercooled $33\,\mathrm{K}$ below its melting point, revealing a 15-fold increase compared to room temperature. We also confirm our previous data for the viscosity of supercooled light water, and…

Chemical Physics · Physics 2023-09-19 Pierre Ragueneau , Frédéric Caupin , Bruno Issenmann

Using molecular dynamics simulations and methods of importance sampling, we study the thermodynamics and dynamics of sodium chloride in the aqueous premelting layer formed spontaneously at the interface between ice and its vapor. We uncover…

Statistical Mechanics · Physics 2020-12-21 Samuel P. Niblett , David T. Limmer

Several ionic liquids (ILs) are known to revert aggregation processes and improve the in vitro refolding of denatured proteins. In this paper the capacity of a particular class of ammonium based ILs to act as refolding enhancers was tested…

Soft Condensed Matter · Physics 2012-04-24 Sara Mangialardo , Lorenzo Gontrani , Ruggero Caminiti , Paolo Postorino

The non-linear response of entangled polymers to shear flow is complicated. Its current understanding is framed mainly as a rheological description in terms of the complex viscosity. However, the full picture requires an assessment of the…

Computational Physics · Physics 2018-08-21 Airidas Korolkovas , Philipp Gutfreund , Max Wolff

We investigated magnetotransport in mesoscopic samples containing electrons from three different subbands in GaAs triple wells. At high temperatures, we observed positive magnetoresistance, which we attribute to the imbalance between…

Mesoscale and Nanoscale Physics · Physics 2024-11-06 A. D. Levin , G. M. Gusev , V. A. Chitta , A. S. Jaroshevich , A. K. Bakarov

Studying the freezing of saltwater on a molecular level is of fundamental importance for improving freeze desalination techniques. Here, we investigate the freezing process of NaCl solutions using a combination of x-ray diffraction and…

Chemical Physics · Physics 2020-04-22 Ifigeneia Tsironi , Daniel Schlesinger , Alexander Späh , Lars Eriksson , Mo Segad , Fivos Perakis

The paper is devoted to a detailed analysis of the two important transport processes - the kinematic shear viscosity and the self-diffusion - for all states of liquid water from the triple point to the critical point. Our approach to the…

Soft Condensed Matter · Physics 2022-03-10 Viktor N. Makhlaichuk , Nikolay P. Malomuzh

Viscous relativistic hydrodynamics in 3+1 dimensions is applied to describe heavy ion collisions at RHIC and LHC. We present calculations of observables that are sensitive to the longitudinal structure of the created system. In particular…

Nuclear Theory · Physics 2016-11-23 Gabriel Denicol , Akihiko Monnai , Sangwook Ryu , Bjoern Schenke

In this work, we use flow visualization and rheometry techniques to study the dynamics and evolution of secondary flows in a model wormlike micellar solution sheared between concentric cylinders, i.e., in a Taylor-Couette (TC) cell. The…

Soft Condensed Matter · Physics 2017-06-28 Hadi Mohammadigoushki , Susan J. Muller

In this work, we report the results from molecular dynamics simulations of lithium salt-ionic liquid electrolytes (ILEs) based either on the symmetric bis[(trifluoromethyl)sulfonyl]imide ($\text{TFSI}^-$) anion or its asymmetric analog…

Chemical Physics · Physics 2022-03-23 Alina Wettstein , Diddo Diddens , Andreas Heuer

We present the results of a molecular dynamics simulation study of thermodynamic and structural properties upon supercooling of a low concentration sodium chloride solution in TIP4P water and the comparison with the corresponding bulk…

Soft Condensed Matter · Physics 2008-06-25 D. Corradini , P. Gallo , M. Rovere

We analyse cosmological hydrodynamical simulations of galaxy clusters to study the X-ray scaling relations between total masses and observable quantities such as X-ray luminosity, gas mass, X-ray temperature, and $Y_{X}$. Three sets of…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-26 N. Truong , E. Rasia , P. Mazzotta , S. Planelles , V. Biffi , D. Fabjan , A. M. Beck , S. Borgani , K. Dolag , M. Gaspari , G. L. Granato , G. Murante , C. Ragone-Figueroa , L. K. Steinborn

We combine molecular dynamics simulations with experiments to estimate solubilities of organic salts in complex growth environments. We predict the solubility by simulations of the growth and dissolution of ions at the crystal surface kink…

Patchy nanocubes are intriguing materials with simple shapes and space-filling and multidirectional bonding properties. Previous studies have revealed various mesoscopic structures such as colloidal crystals in the solid regime and rod-like…

Soft Condensed Matter · Physics 2024-07-09 Takahiro Ikeda , Yusei Kobayashi , Masashi Yamakawa

While largely studied on the macroscopic scale, the dynamics leading to nucleation and fission processes in atmospheric aerosols are still poorly understood at the molecular level. Here, we present a joint experimental-theoretical study of…

Dense suspensions of small strongly interacting particles are complex systems, which are rarely understood on the microscopic level. We investigate properties of dense suspensions and sediments of small spherical Al_2O_3 particles in a…

Soft Condensed Matter · Physics 2007-05-23 Martin Hecht , Jens Harting , Markus Bier , Joerg Reinshagen , Hans J. Herrmann

An effective shear viscosity in central Au+Au collisions is estimated in the range of incident energies 3.3 GeV $\le \sqrt{s_{NN}}\le$ 39 GeV. The simulations are performed within a three-fluid model employing three different equations of…

Nuclear Theory · Physics 2016-04-13 Yu. B. Ivanov , A. A. Soldatov

We have performed large-scale Lennard-Jones molecular dynamics simulations of homogeneous vapor-to-liquid nucleation, with $10^9$ atoms. This large number allows us to resolve extremely low nucleation rates, and also provides excellent…

Chemical Physics · Physics 2014-04-07 Raymond Angélil , Jürg Diemand , Kyoko K. Tanaka , Hidekazu Tanaka

Effects of chain length compatibility and molecular ratio on the two-dimensional crystallization of a binary mixed surfactant system with non-identical molecular size and its consequence on retardation to water evaporation are described via…

Soft Condensed Matter · Physics 2025-03-25 Kulsuma Begum , Abhijeet Das , Dinesh O. Shah , Sanjeev Kumar

We determine potentials of the mean force for interactions of amino acids with four common surfaces of ZnO in aqueous solutions. The method involves all-atom molecular dynamics simulations combined with the umbrella sampling technique. The…

Biomolecules · Quantitative Biology 2014-06-02 Grzegorz Nawrocki , Marek Cieplak