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Mainournal ArchiveYear 2025 / № 4

Issue: #4 (121)

DOI 10.18698/1812-3368-2025-4

Mathematics and Mechanics

Simulation of the Thermomechanical State of the Fuel Element Section Considering Contact, Cracking and Creep
Authors: Aronov P.S., Galanin M.P., Rodin A.S.  

Category: Mathematics and Mechanics | Chapter: Computational Mathematics

  
Keywords: сontact problem, finite element method, mortar method, fuel element, cracking, creep
Calculation of the Asymptotic Covariance Matrix of the Generalized Exponential Autoregressive Model for the Huber Loss Function
Authors: Goryainov V.B., Masyagin M.M.  

Category: Mathematics and Mechanics | Chapter: Mathematical Simulation, Numerical Methods and Software Packages

  
Keywords: generalized exponential auto-regressive model, Huber loss function, asymptotic covariance matrix, Taylor series expansion
Instability of the Rail Guide Vibrations under the Influence of a Moving Distributed Load
Authors: Erofeev V.I., Lisenkova E.E.  

Category: Mathematics and Mechanics | Chapter: Theoretical Mechanics, Machine Dynamics

  
Keywords: rail guide, elastic foundation, high-speed moving load, critical speed, instability
T-Schemes for Mathematical Simulation of Vorticity Generation on Airfoils with Corner Points in Vortex Particle Methods
Authors: Marchevskii I.K., Sokol K.S., Izmailova Yu.A.  

Category: Mathematics and Mechanics | Chapter: Mathematical Simulation, Numerical Methods and Software Packages

  
Keywords: vortex methods, vorticity generation, boundary integral equation, Galerkin method, corner point, singular solution, added mass

Physics

Influence of the Isotopic Composition of Aqueous Solutions on the Kinetics of the Redox Process
Authors: Bunkin N.F., Timchenko S.L., Bolotskova P.N., Zadorozhnyi E.N., Kozlov V.A.  

Category: Physics | Chapter: Condensed Matter Physics

  
Keywords: redox reaction, methylene blue, ascorbic acid, isotopic composition, spectrometry, reaction rate
Physical Simulation of Hydraulic Characteristics of Channels with Spatial Lattice Structures
Authors: Lopatin A.A., Gabdullina R.A., Sayetgarayev A.A., Biktagirova A.R.  

Category: Physics | Chapter: Thermal Physics and Theoretical Heat Engineering

  
Keywords: lattice structure, hydraulic resistance coefficient, hydraulic resistance, channel with a spatial lattice structure, viscous resistance coefficient, inertial resistance coefficient

Chemistry

Antioxidant and Antiferroptosis Potential of Some Natural Raw Material Extracts
Authors: Bayzhumanov A.A., Parshina E.Yu., Yusipovich A.I., Morozova K.I., Lu G., Hu Zh., Yang Ch., Sokolova O.S.  

Category: Chemistry | Chapter: Bioorganic Chemistry

  
Keywords: ferroptosis, natural extracts, antioxidants phenolic compounds, liposomes, ATR-FTIR spectroscopy
Antioxidant Properties of Ethyl Acetate Fraction of Sungkai Leaves (Peronema Canescens Jack): Experimental and Computational Approaches
Authors: Imelda, Deswita E., Suryati  

Category: Chemistry | Chapter: Organic Chemistry

  
Keywords: antioxidants, Sungkai leaves, ethyl acetate, DPPH, density functional theory