?
Теоретические и вычислительные подходы к предсказанию вязкости жидкостей
Успехи физических наук. 2023. Т. 193. № 4. С. 437–461.
Predictive models for the shear viscosity of liquids and gases together with the exact equations of state have a great importance for the problems of hydrodynamic modeling of processes occurring in nature, industrial plants and mechanisms. This review aims to consider the currently proposed theoretical, including atomistic modeling, and empirical approaches for predicting the viscosity of liquids, gases and their mixtures in a wide range of thermodynamic conditions. We analyse the viscosity models of homogeneous liquids that are thermodynamically stable. The dynamics of supercooled and glassy liquids, dispersed systems (colloids, emulsions) remains beyond the scope of this review. We discuss the range of applicability of correlation methods for predicting viscosity and the accuracy of various methods at the pressures up to 1 GPa. The application examples of various approaches for hydrocarbons - model oil and gas, fuel and lubrication systems are given. The reported study was funded by RFBR, project number 20-18-50214.
Derkacheva A., Sakirkina M., Kraev G. et al., /. 2026.
Comprehensive data on natural hazards and their consequences are crucial for effective for risk assessment, adaptation planning, and emergency response. However, many countries face challenges with fragmented, inconsistent, and inaccessible data, particularly regarding local-scale events. To address this data gap in Russia, we developed an end-to-end processing pipeline that scrapes news from various online sources, ...
Added: April 28, 2026
Ponomarev A., Aleksandrov N., Plasma Physics Reports 2026 Vol. 52 No. 3 P. 367–378
An approximate method for calculating drift velocity and other kinetic coefficients of heavy ions
in a light gas is generalized to gaseous mixtures. Obtained equations are used to calculate the mobilities of
and ions, as well as rate constants for inelastic ion–molecule processes with these ions in helium with
small additions of O2 under an electric field. Calculated ...
Added: April 27, 2026
Domrin V. I., Malova H. V., V. Yu. Popov et al., Cosmic Research 2026 Vol. 64 No. 2 P. 238–252
During magnetospheric perturbations a relatively thin current sheet with thickness about several
proton gyroradii forms in the Earth’s magnetotail. In a framework of the kinetic model describing current
sheet thinning in the magnetotail, the processes of its formation are investigated depending on the normal
magnetic field magnitude which affects both the current sheet structure and particle dynamics within ...
Added: April 27, 2026
Tsareva O. O., Malova H. V., V. Yu. Popov et al., Plasma Physics Reports 2026 Vol. 52 No. 2 P. 179–185
The influence of asymmetry of plasma sources on the structure and spatial localization of a superthin
current sheet (STCS) supported by demagnetized electrons is studied using a self-consistent model. The
simulation takes into account the presence of a single plasma source in the northern hemisphere, which
makes the plasma flow asymmetric. It is demonstrated that the asymmetry of ...
Added: April 27, 2026
П.А.Беспалов, О.Н. Савина, Геомагнетизм и аэрономия 2025 Т. 65 № 5 С. 620–628
Several basic models of frequency dynamics in quasi-periodic VLF emissions with spectral form repetition
periods from 10 to 300 s are considered. In all cases, we are talking about manifestations of cyclotron instability
of electron radiation belts thet are well described within the framework of the plasma magnetospheric maser
theory based an the averaged self-consistent system of quasi-linear ...
Added: April 25, 2026
Bondarenko G.G., Fisher M. R., Kristya V. I., Bulletin of the Russian Academy of Sciences: Physics 2026 Vol. 90 No. 4 P. 572–576
A model of the cathode layer of a glow gas discharge with a thin dielectric film on a fraction of the
cathode’s working surface is formulated. It is shown that a glow discharge most rapidly transits to an arc discharge,
accompanied by a significant increase in discharge current density and a decrease in cathode voltage
drop, if the ...
Added: April 25, 2026
NY: Association for Computing Machinery (ACM), 2026.
It is our great pleasure to welcome you to the 35th edition of the Web Conference to be held on June 29 – July 3, 2026, in Dubai, United Arab Emirates.
Following discussions with our partners and key stakeholders, we have taken the decision to postpone the ACM Web Conference 2026, initially planned for April 2026. ...
Added: April 23, 2026
Kychkin A., Chernitsin I., Прикладная информатика 2026 Т. 21 № 1 С. 40–58
The results of the development of a software microservice embedded in atmospheric air quality monitoring systems to support the identification of industrial pollution sources are presented. The emission and subsequent spread of harmful substances in the lower layers of the atmosphere is dynamic and characterized by high uncertainty due to the specific features of technological ...
Added: April 23, 2026
Zadkov V., Plasmonics 2026 Vol. 21 P. 1503–1512
Plasmonic nanostructures typically exhibit shifts in their resonant wavelength in response to changes in the refractive index of the surrounding medium. This limits their applications in scenarios requiring stable optical resonances. Here we present a metallic-dielectric hybrid metasurface that exhibits stable multi-wavelength resonance even if the refractive index of its surrounding varies. To quantitatively evaluate the stability of ...
Added: April 22, 2026
IEEE, 2026.
Added: April 21, 2026
Wang M., Xiao Y., Braslavski P. et al., Mathematics 2026 Vol. 14 No. 8 Article 1286
Increasingly shaped by heterogeneous on-chain activity rather than a single shared market process, this study investigates 7-day-ahead forecasting using 147 market and on-chain indicators across eight major blockchain ecosystems from October 2023 to April 2025. We benchmark statistical, deep-learning, and foundation-model baselines under multiple feature-selection pipelines using both error metrics and Diebold–Mariano tests. TiRex achieves ...
Added: April 20, 2026
Leon L. Ogorodnikov, Sergey S. Vergeles, Physical Review Fluids 2025 Vol. 10 No. 12 Article 124702
We study the spatial dependence of pair correlation functions of velocity field com ponents in a rotating turbulent fluid on a background of a coherent geostrophic vortex. The statistics of the turbulent pulsations are determined by their dynamics, which is the dynamics of inertial waves affected by the differential rotation in the vortex and a ...
Added: February 24, 2026
Гречишникова А. А., Трофимчук Е. С., Егоров А. А. et al., Перспективные материалы 2025 № 11 С. 17–28
Composite gels based on polyvinylpyrrolidone (PVP) and alginate (Alg) with carbonate hydroxyapatite (CHA) were obtained. Their kinematic and dynamic viscosities were measured. It has been shown that the introduction of CHA in an amount of up to 40 % by weight of polymers leads to a decrease in kinematic viscosity, and the introduction of 50 ...
Added: November 26, 2025
Yury A. Budkov, Nikolai N. Kalikin, Petr E. Brandyshev, Journal of Chemical Physics 2025 Vol. 163 No. 2 Article 024502
Accurately describing liquids and their mixtures beyond equilibrium remains a significant challenge in modern chemical physics and physical chemistry, especially regarding the calculation of transport properties in liquid-phase systems. This paper introduces a phenomenological nonequilibrium theory specifically designed for multicomponent liquid-phase solutions. Our field-theoretical framework, rooted in nonequilibrium statistical mechanics, incorporates quasi-stationary concentration fluctuations that ...
Added: July 8, 2025
Блинова Е. Н., Sherbakova O., Психологический журнал 2024 Т. 45 № 5 С. 34–44
In this article, we analyze the state-of-the-art in international research on comprehension of texts of new formats. We describe the concept of “multimedia text”, which is widely accepted in literature, as well as discuss its alternatives. Also, we thoroughly describe key theoretical models, such as the Cognitive Theory of Multimedia Learning and the Integrated Model ...
Added: February 28, 2025
Блинова Е. Н., Sherbakova O., Психологический журнал 2024 Т. 45 № 4 С. 16–28
In this article, we review a range of Russian-language studies investigating readers’ interaction with
new text formats. We identify the key problems preventing proper generalization of such research data. These
include: (1) the absence of agreed terminology for describing texts of new formats shared by most researchers,
and (2) the lack of consistency in theoretical approaches for describing ...
Added: February 28, 2025
Odintsova E., Darya L. Gurina, Kruchinin S. E. et al., Industrial & Engineering Chemistry Research 2025 Vol. 64 No. 6 P. 3531–3543
The ability to predict transport properties, such as viscosity, through molecular simulation is a valuable advantage. Obtaining reliable estimates for these properties can be more challenging compared to equilibrium properties. Our manuscript focuses on an in-depth discussion of two prominent methods for predicting transport properties: equilibrium molecular dynamics (EMD) using the Green−Kubo approach and nonequilibrium ...
Added: February 5, 2025
Konshina A., Bocharov E., Konovalova E. et al., International Journal of Molecular Sciences (Швейцария) 2024 Vol. 25 No. 21 Article 11370
Non-immunoglobulin-based scaffold proteins (SPs) represent one of the key therapeutic
target-specific and high-affinity binders in modern medicine. Among their cellular targets are signaling
receptors, in particular, receptor tyrosine kinases, whose dysfunction leads to the development
of cancer and other serious diseases. Successful applications of SPs have been reported for
HER receptor type 2 (HER2), a member of the human ...
Added: December 9, 2024
Aliper E., Roman G. Efremov, International Journal of Molecular Sciences 2023 Vol. 24 No. 22 Article 16421
Membrane-spanning portions of proteins’ polypeptide chains are commonly known as
their transmembrane domains (TMDs). The structural organisation and dynamic behaviour of TMDs
from proteins of various families, be that receptors, ion channels, enzymes etc., have been under
scrutiny on the part of the scientific community for the last few decades. The reason for such attention
is that, apart from ...
Added: September 15, 2024
Дещеня В. И., Kondratyuk N., Высокомолекулярные соединения. Серия С 2023 Т. 65 № 1 С. 91–109
The history and prospects for the development of interatomic interaction potentials for the simulation of molecular systems and, in particular, polysaccharides are presented. Popular families of potentials, such as CHARMM, GROMOS, AMBER, and OPLS, are considered. Problems that limit the applicability of these models to sugar monomers have been recognized, which are poor reproducibility of ...
Added: October 26, 2023
Glushak A., Smirnov G., Applied Clay Science 2023 Vol. 243 Article 107072
Friedel’s salt, also known as Cl-Hydrocalumite, (Ca2[Al(OH)6]⋅ Cl⋅2H2O), is one of the calcium aluminates phases (AFm phases). It can accommodate radioactive chlorine isotopes, serving as a potential material in radioactive waste applications. Earlier X-Ray diffraction and nuclear magnetic resonance (NMR) experiments demonstrated the existence of the first-order phase transition between 303 K and 313 K. The ...
Added: July 31, 2023
Zelenina A. I., Gordeev I. S., Kolotova L., Journal of Non-Crystalline Solids 2023 Vol. 606 Article 122215
Plasmonic nanoobjects have many applications from biosensors to electronic device components. The most promising method for obtaining such objects is the laser printing method due to the possibility of controlling the resulting structure by experimental conditions. In this work, the influence of laser printing initial parameters and Al content on silicon-aluminum nanoparticles (NPs) structure were investigated by a combination ...
Added: June 28, 2023
Medvedev M., Stroganov O., Dmitrienko A. et al., Mendeleev Communications 2022 Vol. 32 No. 6 P. 735–738
Here we propose an over-the-hood docking method that compensates for systematic errors in the docking force fields. This method explicitly estimates the interaction energy of the ligand with the protein surface and uses it as a baseline to estimate the actual binding energy in the active site. It improves the accuracy of virtual screening in the LeadFinder package by up ...
Added: October 25, 2022
Дещеня В. И., Kondratyuk N., Ланкин А. В. et al., Журнал физической химии 2022 Т. 96 № 3 С. 373–380
The temperature dependence of density is calculated for an aqueous solution of sucrose by the molecular dynamics method. The coefficients of viscosity and diffusion are also obtained in the 273–343 K range of temperatures. The hydrodynamic radius of a sucrose molecule in an aqueous solution is calculated. The obtained data are compared with the experimental ...
Added: October 24, 2022