Explanipedia

Orientational Structure and Electro-Optical Properties of Chiral Nematic Droplets with Conical Anchoring Open

Kristina A. Feizer, Mikhail N. Krakhalev, Vladimir Yu. Rudyak, V. Ya. Zyryanov · 2025

The polymer dispersed liquid crystals (PDLCs) with conical boundary conditions are considered. PDLC films with different values of the relative chirality parameter N0 of chiral nematic droplets ranging from 0 to 1.32 are studied experiment…

Polymer Systems with Correlated Activity: Stars Versus Linear Chains Open

Aleksandr I. Buglakov, Prabha Chuphal, Vladimir Yu. Rudyak, Alexander V. Chertovich · 2025

Using molecular dynamics simulations, we explore the impact of correlated monomer activity and star topology on the structure and dynamics of active polymers. Unlike uncorrelated active Brownian particle (ABP) stars, correlated activity in…

Channel Formation Enhances Target Consumption by Chemotactic Active Brownian Particles Open

Vladimir Yu. Rudyak, Shahar Shinehorn, Yael Roichman · 2025

In many situations, simply finding a target during a search is not enough. It is equally important to be able to return to that target repeatedly or to enable a larger community to locate and utilize it. While first passage time is commonl…

Transformation of polar nematic phases in the presence of electric field Open

A. V. Emelyanenko, Vladimir Yu. Rudyak, Fumito Araoka, Hiroya Nishikawa, Ken Ishikawa · 2023

Only a few years have passed since discovery of polar nematics, and now they are becoming the most actively studied liquid crystal materials. Despite numerous breakthrough findings made recently, a theoretical systematization is still lack…

Optimal Entanglement of Polymers Promotes the Formation of Highly Oriented Fibers Open

Artem Petrov, Vladimir Yu. Rudyak, Alexander V. Chertovich · 2022

Polymer fibers consist of macromolecules oriented along the fiber axis. Better alignment of chains leads to an increased strength of the fiber. It is believed that the key factor preventing formation of a perfectly oriented fiber is entang…

Effect of elastic constants on electrically induced transition in twisted radial cholesteric droplets Open

Vladimir Yu. Rudyak, M. N. Krakhalev, Anna P. Gardymova, Abylgazy S. Abdullaev, Andrey A. Alekseev , et al. · 2022

In this work, we investigated the behavior of cholesteric droplets with homeotropic boundary conditions experimentally and by computer simulations. Small droplets forming twisted radial structures were studied. We obtained two different pa…

Polymer-Dispersed Cholesteric Liquid Crystal under Homeotropic Anchoring: Electrically Induced Structures with λ1/2-Disclination Open

Anna P. Gardymova, M. N. Krakhalev, Vladimir Yu. Rudyak, Vadim A. Barbashov, V. Ya. Zyryanov · 2022

Orientational structures of polymer-dispersed cholesteric liquid crystal under homeotropic anchoring and their transformations under the action of an electric field are studied. The switching of cholesteric droplets between different topol…

In Situ Measurements of Elastic Constants In Liquid Crystalline Droplets Open

Vladimir Yu. Rudyak, M. N. Krakhalev, Anna P. Gardymova, Abylgazy S. Abdullaev, Andrey A. Alekseev , et al. · 2022

In this work, we investigated the behaviour of cholesteric droplets with homeotropic boundary conditions experimentally and by computer simulations. Small droplets forming twisted radial structure were studied. We obtained two different pa…

Correction: Effect of network topology and crosslinker reactivity on microgel structure and ordering at liquid–liquid interface Open

Rustam A. Gumerov, Vladimir Yu. Rudyak, Alexey A. Gavrilov, Alexander V. Chertovich, Igor I. Potemkin · 2022

Correction for ‘Effect of network topology and crosslinker reactivity on microgel structure and ordering at liquid–liquid interface’ by Rustam A. Gumerov et al. , Soft Matter , 2022, 18 , 3738–3747, https://doi.org/10.1039/D2SM00269H.

Liquid Crystal Materials under Conical Boundary Conditions Open

M. N. Krakhalev, Vladimir Yu. Rudyak, В. С. Сутормин, O. O. Prishchepa, Rashid G. Bikbaev , et al. · 2021

1 1 Институт физики им.Л. В. Киренского Сибирского Отделения Российской академии наук -

Efficient Implementation of Liquid Crystal Simulation Software on Modern HPC Platforms Open

Ilya V. Afanasyev, Dmitry I. Lichmanov, Vladimir Yu. Rudyak, Vadim Voevodin · 2021

In this paper we demonstrate the process of efficient porting a software package for Markov chain Monte Carlo (MCMC) simulations on a finite cubic lattice on multiple modern architectures: Pascal, Volta and Turing NVIDIA GPUs, NEC SX-Auror…

Correction to “Polymerization of Low-Entangled Ultrahigh Molecular Weight Polyethylene: Analytical Model and Computer Simulations” Open

Artem Petrov, Vladimir Yu. Rudyak, Pavel Kos, Alexander V. Chertovich · 2021

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to "Polymerization of Low-Entangled Ultrahigh Molecular Weight Polyethylene: Analytical Model and Computer Simulations"Artem Petr…

Electrically turning periodic structures in cholesteric layer with conical–planar boundary conditions Open

O. O. Prishchepa, M. N. Krakhalev, Vladimir Yu. Rudyak, В. С. Сутормин, V. Ya. Zyryanov · 2021

Microstructured Macromaterials Based on IPN Microgels Open

I. R. Nasimova, Vladimir Yu. Rudyak, Anton Pavlovich Doroganov, Elena P. Kharitonova, Elena Yu. Kozhunova · 2021

This study investigates the formation of microstructured macromaterials from thermo- and pH-sensitive microgels based on interpenetrating networks of poly-N-isopropylacrylamide (PNIPAM) and polyacrylic acid (PAA). Macromaterials are produc…

Polymer Dispersed Cholesteric Liquid Crystals with a Toroidal Director Configuration under an Electric Field Open

Anna P. Gardymova, M. N. Krakhalev, V. Ya. Zyryanov, Alexandra A. Gruzdenko, Andrey A. Alekseev , et al. · 2021

The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topolo…

Computer simulation of the core-shell microgels synthesis via precipitation polymerization Open

Alexey A. Gavrilov, Vladimir Yu. Rudyak, Alexander V. Chertovich · 2020

Low-entangled UHMWPE melt: analytical model and computer simulations Open

Artem Petrov, Vladimir Yu. Rudyak, Pavel Kos, Alexander V. Chertovich · 2020

In this work we developed a theoretical model to describe the polymerization of very long macromolecules with simultaneous precipitation. As a reference system for our model we consider UHMWPE polymerization process, via homogeneous cataly…

Towards the realistic computer model of precipitation polymerization microgels Open

Vladimir Yu. Rudyak, Elena Yu. Kozhunova, Alexander V. Chertovich · 2019

Thermoset Polymer Matrix Structure and Properties: Coarse-Grained Simulations Open

Vladimir Yu. Rudyak, Е А Ефимова, Daria V. Guseva, Alexander V. Chertovich · 2018

The formation of a thermoset polymer network is a complex process with great variability. In this study, we used dissipative particle dynamics and graph theory tools to investigate the curing process and network topology of a phthalonitril…

Multiscale Simulations Approach: Crosslinked Polymer Matrices Open

П. В. Комаров, Daria V. Guseva, Vladimir Yu. Rudyak, Alexander V. Chertovich · 2018

Atomistic molecular dynamics simulations can usually cover only a very limited range in space and time. Thus, the materials like polymer resin networks, the properties of which are formed on macroscopic scale, are hard to study thoroughly …

Dynamic and Static Mechanical Properties of Crosslinked Polymer Matrices: Multiscale Simulations and Experiments Open

Daria V. Guseva, Vladimir Yu. Rudyak, П. В. Комаров, Boris A. Bulgakov, А. В. Бабкин , et al. · 2018

We studied the static and dynamic mechanical properties of crosslinked polymer matrices using multiscale simulations and experiments. We continued to develop the multiscale methodology for generating atomistic polymer networks, and applied…

Electrically induced structure transition in nematic liquid crystal droplets with conical boundary conditions Open

Vladimir Yu. Rudyak, M. N. Krakhalev, В. С. Сутормин, O. O. Prishchepa, V. Ya. Zyryanov , et al. · 2017

Polymer-dispersed liquid crystal composites have been a focus of study for a long time for their unique electro-optical properties and manufacturing by "bottom-up" techniques at large scales. In this paper, nematic liquid crystal oblate dr…

Bipolar configuration with twisted loop defect in chiral nematic droplets under homeotropic surface anchoring Open

M. N. Krakhalev, Anna P. Gardymova, O. O. Prishchepa, Vladimir Yu. Rudyak, A. V. Emelyanenko , et al. · 2017

Seeding the UEFA Champions League Participants: Evaluation of the Reform Open

Dmitry Dagaev, Vladimir Yu. Rudyak · 2016

Seeding the UEFA Champions League Participants: Evaluation of the Reform Open

Dmitry Dagaev, Vladimir Yu. Rudyak · 2016

We evaluate the sporting effects of the seeding system reform in the major football club tournament -- the Champions League -- organized by the Union of European Football Associations (UEFA). In the UEFA Champions League, before the 2015-1…

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