Bulletin of the Lebedev Physics Institute最新文献_第3页

Calculation of Signal from Millicharged Particles for RED-100 and vGeN Experiments at Kalinin NPP 加里宁核电厂RED-100和vGeN实验中带电粒子信号的计算

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-09-23 DOI: 10.3103/S1068335626600439

V. A. Belov, A. M. Konovalov, N. A. Mashin, R. F. Siro, N. A. Skrobova, A. V. Shakirov

引用次数: 0

Analysis of Vibrational Properties of Dimethylaniline–Dimethyl Sulfoxide Mixtures Using IR Spectroscopy and Molecular Docking Study of Dimethylaniline 红外光谱分析二甲苯胺-二甲亚砜混合物的振动特性及二甲苯胺的分子对接研究

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-09-23 DOI: 10.3103/S1068335626600440

A. Jumabaev, A. A. Absanov, H. A. Hushvaktov, A. M. Norkulov, Z. I. Ernazarov

{"title":"Analysis of Vibrational Properties of Dimethylaniline–Dimethyl Sulfoxide Mixtures Using IR Spectroscopy and Molecular Docking Study of Dimethylaniline","authors":"A. Jumabaev, A. A. Absanov, H. A. Hushvaktov, A. M. Norkulov, Z. I. Ernazarov","doi":"10.3103/S1068335626600440","DOIUrl":"10.3103/S1068335626600440","url":null,"abstract":"Intermolecular interactions in a binary dimethylaniline (DMA)‒dimethyl sulfoxide (DMSO) system are investigated systematically based on infrared absorption spectroscopy and molecular docking analysis. The FTIR spectra recorded in the 600–1700 cm–1 range exhibit consistent vibrational shifts within 1–13 cm–1 as a function of the DMA mole fraction. Particularly, frequency shifts in aromatic-ring and C–N vibrational modes indicate the electron-density redistribution induced by the dipolar solvent environment. The relatively small amplitude shifts of spectral parameters suggest that noncovalent interactions, primarily of dipole–dipole and donor–acceptor character, predominate over strong covalent complexes in the system. Probable binding characteristics of dimethylaniline with biological systems are evaluated using molecular docking based on the cytochrome P450 2A6 (CYP2A6) enzyme model. Computational results show that the ligand is energetically favorably positioned within the active site of the enzyme and that complex stability is governed primarily by hydrophobic and aromatic π–π interactions. The consistency between experimental spectral data and computational results indicates a close relationship between solvent-induced electronic effects and the protein–ligand binding mechanism. These results provide a theoretical basis for explaining the behavior of small aromatic amines in solutions and biological media at the molecular level, as well as for predicting their metabolic properties.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"53 8","pages":"342 - 349"},"PeriodicalIF":0.6,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship of Solar Proton Events with Flares and Coronal Mass Ejections Based on NASA Catalog Data 基于NASA目录数据的太阳质子事件与耀斑和日冕物质抛射的关系

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-09-23 DOI: 10.3103/S1068335626600932

G. A. Bazilevskaya

引用次数: 0

Pressure Pulse during Explosive Boiling of Water 水爆炸沸腾时的压力脉冲

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-09-23 DOI: 10.3103/S1068335626600373

D. I. Ashikhmin, V. I. Yusupov

引用次数: 0

Growth, Experimental and Computational Studies of L-Histidine Barium Nitrate Crystals for Photonics, Optical-Sensor, and Rheological Applications l-组氨酸硝酸钡晶体的生长、实验和计算研究，用于光子学、光学传感器和流变学应用

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-09-23 DOI: 10.3103/S1068335625604303

M. Sathish, T. Balakrishnan, T. Jayanalina, S. Mahalakshmi, R. Divya, N. Renuka, SenthilKannan. K

引用次数: 0

Time Evolution of the Optical and Structural Properties of C70 Fullerene in Benzene–Cyclohexane Solvents C70富勒烯在苯-环己烷溶剂中光学性质和结构性质的时间演化

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-09-23 DOI: 10.3103/S1068335626600178

U. K. Makhmanov, E. A. Tursunkulov, N. N. Bahriyev

{"title":"Time Evolution of the Optical and Structural Properties of C70 Fullerene in Benzene–Cyclohexane Solvents","authors":"U. K. Makhmanov, E. A. Tursunkulov, N. N. Bahriyev","doi":"10.3103/S1068335626600178","DOIUrl":"10.3103/S1068335626600178","url":null,"abstract":"In this study, we comprehensively investigated the aggregation processes of fullerene C70 in a benzene/cyclohexane binary solution, taking into account the effects of concentration and time. The optical properties of the samples were analyzed using UV-visible and Raman spectroscopy, as well as refractometry (n and BRIX parameters). The preservation of the positions of specific maxima of C70 unchanged in the UV-visible spectra indicates that the aggregation process does not disturb the fundamental electronic structure of the molecule. Raman analysis showed that the increase in the intensity of some vibrational modes and a decrease in the number of peaks over time are associated with physical clustering processes. Refractometric results showed that the refractive index increases with increasing C70 concentration. Although the UV–Vis absorption intensity continues to increase up to the 20th day, the refractive index and BRIX values exhibit only minor variations in the 15–20 day interval, indicating that the system approaches a dynamic optical equilibrium in terms of refractometric response. It was noted that aggregation occurs faster in the sample with a higher concentration.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"53 8","pages":"309 - 316"},"PeriodicalIF":0.6,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Possible Approach to Increasing the Induction Electric Field in the CS-3DM Facility 增加CS-3DM设备感应电场的一种可能方法

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-09-23 DOI: 10.3103/S1068335626600695

A. G. Frank, I. R. Nugaev, D. V. Sukhodolova

引用次数: 0

One-Step Combustion Model for Methane‒Air Mixtures over a Wide Range of Parameters 一步燃烧模型甲烷-空气混合物在广泛的参数范围

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-08-24 DOI: 10.3103/S1068335626600580

A. D. Moroshkina, V. E. Rogozhnikov, K. D. Khvostochenko, V. V. Mislavsky, E. V. Sereshchenko, V. V. Gubernov

{"title":"One-Step Combustion Model for Methane‒Air Mixtures over a Wide Range of Parameters","authors":"A. D. Moroshkina, V. E. Rogozhnikov, K. D. Khvostochenko, V. V. Mislavsky, E. V. Sereshchenko, V. V. Gubernov","doi":"10.3103/S1068335626600580","DOIUrl":"10.3103/S1068335626600580","url":null,"abstract":"We report a numerical investigation of the applicability of a one-step global combustion mechanism for a methane‒air mixture, developed from experimental data for freely propagating flame, to the description of flames stabilized on a flat porous burner. The simulation is performed in the Cantera software package using a multicomponent diffusion formulation. Comparison of the results obtained using the one-step model with experimental data and calculations relying on the widely used detailed chemical-kinetic mechanisms (Aramco and FFCM) demonstrates good quantitative agreement for the dependence of flame height on mass flow rate and temperature distribution in the pressure range from 1 to 10 atm. It is shown that the one-step model correctly reproduces the nonmonotonic dependence of the flame height on the mass flow rate of the fuel mixture and correctly predicts the monotonic increase in the combustion front temperature. It is also found that the flame structure predicted by the one-step model is characterized by a significantly narrower reaction zone compared to the detailed kinetic mechanisms and the experiment, which is due to the absence of slow processes governing the relaxation of CO and CO2 toward equilibrium concentrations. Ways to further improve the model by adding a second reaction of CO oxidation to CO2 are discussed.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"53 7","pages":"296 - 302"},"PeriodicalIF":0.6,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dispersed Scintillators Based on Optical-Grade Silicone 基于光学级硅树脂的分散闪烁体

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-08-24 DOI: 10.3103/S1068335625604406

D. A. Kuleshov, K. O. Kurinov, I. O. Maliy, Yu. V. Stenkin

引用次数: 0

Ultrahigh-Energy Proton–Proton Interaction in the Laboratory Frame as a Source of Proton, Neutrinos, and Gamma-Ray Spectra in Astrophysics 天体物理学中作为质子、中微子和伽马射线谱源的超高能质子-质子相互作用的实验室框架

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2026-08-24 DOI: 10.3103/S106833562660035X

O. I. Piskunova

{"title":"Ultrahigh-Energy Proton–Proton Interaction in the Laboratory Frame as a Source of Proton, Neutrinos, and Gamma-Ray Spectra in Astrophysics","authors":"O. I. Piskunova","doi":"10.3103/S106833562660035X","DOIUrl":"10.3103/S106833562660035X","url":null,"abstract":"Similar spectral features are observed in the ultrahigh-energy cosmic-ray proton, neutrino, and gamma-ray spectra. The proton production spectra measured in proton–proton collisions at colliders exhibit structures whose prominence increases with collision energy. When the simulated accelerator spectrum is transformed from the center-of-mass frame to the laboratory frame, a feature analogous to the so-called knee appears at the position corresponding to the central rapidity region. At the high-energy end of the spectra, cosmic neutrinos and gamma rays, originating from the decays of secondary heavy hyperons and neutral pions, exhibit a humplike structure that is not expected within conventional models of cosmic proton acceleration. Assuming that primary protons are emitted from the source with already ultrahigh energies and that secondary particles are produced there through quark–gluon string fragmentation, it follows that the observed features in the proton, neutrino, and gamma-ray spectra may result from triple-Pomeron diffractive scattering. From the energy position of the knee in the proton spectrum, the initial proton energy near the cosmic source is estimated to be E0 ~1012 GeV.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"53 7","pages":"282 - 285"},"PeriodicalIF":0.6,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0