Stanislav Parez

Stanislav Parez
The Czech Academy of Sciences | AVCR · Institute of Chemical Process Fundamentals

PhD

About

14
Publications
5,029
Reads
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185
Citations
Citations since 2017
7 Research Items
141 Citations
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20172018201920202021202220230510152025
Introduction
Stanislav Parez currently works at the Institute of Chemical Process Fundamentals, The Czech Academy of Sciences. Stanislav does research in Geophysics using theory and numerical simulations. Stanislav is currently working on hydromechanical effects in fault zones and landslides.
Additional affiliations
October 2017 - October 2017
The Czech Academy of Sciences
Position
  • Researcher
August 2014 - August 2015
Columbia University
Position
  • PostDoc Position
January 2014 - December 2015
Hebrew University of Jerusalem
Position
  • PostDoc Position

Publications

Publications (14)
Preprint
Full-text available
Shear strain localization into shear bands is associated with velocity weakening instabilities and earthquakes. Here, we simulate steady-state plane-shear flow of numerical granular material (gouge), confined between parallel surfaces. Both constant shear stress and constant strain-rate boundary conditions are tested and the two types of boundary c...
Article
Shear strain localization into shear bands is associated with velocity weakening instabilities and earthquakes. Here, we simulate steady-state plane-shear flow of numerical granular material (gouge), confined between parallel surfaces. Both constant shear stress and constant strain-rate boundary conditions are tested, and the two types of boundary...
Article
Full-text available
Salt basins often exhibit a shelf/slope region of extension and a deeper domain of contraction. The up‐slope normal faults in such salt tectonics systems are often associated with the pinch‐out edge of the buried salt layer. Although the spatial correlation between the normal faults and the salt pinch‐out was previously observed, the mechanism was...
Article
In many natural granular systems, the interstitial pores are filled with a fluid. Deformation of this two-phase system is complex, is highly coupled, and depends on the initial and boundary conditions. Here we study granular compaction and fluid flow in a saturated, horizontally shaken, unconfined granular layer, where the fluid is free to flow in...
Conference Paper
Soil liquefaction is a devastating earthquake hazard, commonly causing tilting, sinking and floating of infrastructure. The classical mechanism for liquefaction requires undrained and loosely packed soil, that upon shear experiences elevated, lithostatic, pore pressure and consequently zero effective stress. However, some field and experimental obs...
Article
Soft ionization of sodium tagged polar clusters is increasingly used as a powerful technique for sizing and characterization of small aerosols with possible application, e.g., in atmospheric chemistry or combustion science. Understanding the structure and photoionization of the sodiumdopedclusters is critical for such applications. In this work, we...
Article
Full-text available
The continuum description of granular flows is still a challenge despite their importance in many geophysical and industrial applications.We extend previous works, which have explored steady flow properties, by focusing on unsteady flows accelerating or decelerating down an inclined plane in the simple shear configuration.We solve the flow kinemati...
Article
Full-text available
Large landslides exhibit surprisingly long runout distances compared to a rigid body sliding from the same slope, and the mechanism of this phenomena has been studied for decades. This paper shows that the observed long runouts can be explained quite simply via a granular pile flowing downhill, while collapsing and spreading, without the need for f...
Article
Full-text available
Adsorption of Rb+, Na+, Sr2+, and Cl- was studied on hydroxylated (110) rutile surfaces by molecular dynamics (MD) simulations. Our previous work was extended to a range of surface charge densities 0.2 to +0.1 C/m2 (-0.4 to +0.1 C/m2 for Sr2+) and temperatures (25, 150 and 250 °C). These conditions can be linked to experimental surface charge and p...
Article
Full-text available
Mutual diffusion is investigated by means of experiment and molecular simulation for liquid mixtures containing water + methanol + ethanol. The Fick diffusion coefficient is measured by Taylor dispersion as a function of composition for all three binary subsystems under ambient conditions. For the aqueous systems, these data compare well with liter...
Article
Full-text available
We generalize a technique for determination of the shear viscosity of mixtures in planar slabs using non-equilibrium computer simulations by applying an external force parallel to the surface generating Poiseuille flow. The distance-dependent viscosity of the mixture, given as a function of the distance from the surface, is determined by analysis o...
Article
Full-text available
An effective coarse-grained interaction potential between a point particle and a spherical colloidal particle with continuously distributed inverse power-law interaction sites is derived. The potential covers all ranges of spherical particle size, from a point particle up to an infinitely large particle forming a planar surface. In the small size l...

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Projects

Project (1)
Archived project
Photo-ionization spectra can tell us about structure, size and temperature of aerosol particles.