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Electrical Discharge in a Cavitating Liquid under an Ultrasound Field
The Journal of Physical Chemistry Letters. 2023. Vol. 14. No. 49. P. 10880–10885.
A theoretical model for an electrical discharge in a cavitating liquid is developed and compared with experiments for the optimization of the water treatment device. The calculations based on solution of the Noltingk—Neppiras equation support the hypothesis that the electric field promotes the formation of vapor microchannels inside a liquid gap between the electrodes, where at a low gas pressure Paschen’s conditions of rupture and abnormal glow discharge maintenance in those microchannels are fulfilled. Theoretical analysis of the cavitation processes and the discharge formation processes is in qualitative agreement with the experimental data obtained in this work in a water treatment device using a hydrodynamic emitter. The following graphic illustrates the experimental setup: (1) feeding tank, (2) hydrodynamic emitter, (3) zone of cavitation inside the plasma reactor, (4) high-frequency generator of electric impulses, and (5) outlet.
Taye B. Z., Zhu J., Liu Z. et al., Materials Science and Engineering: R: Reports 2026 Vol. 171 Article 101262
Wide-bandgap (WBG) perovskites used in monolithic tandem solar cells are limited by nonradiative recombination losses and operational instability originating from defect formation during crystallization and their subsequent evolution under illumination. Here, we show that defect formation can be regulated at the precursor stage by coordination chemistry, instead of relying only on post-crystallization passivation. A fluorinated ...
Added: July 1, 2026
Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...
Added: May 14, 2026
Гущина В. А., Mendeleev Communications 2025 Vol. 35 No. 2 P. 193–195
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are intensively studied for their unique optical properties, though synthesizing single-phase nanoparticles has posed challenges. Detailed synthesis method of CsPbBr3 and Cs4PbBr6 single-phase nanoparticles and their chemical and phase analysis are described. Distinctive optical characteristics, such as photoluminescence, optical band gap and the Urbach tail region, are revealed and explained within the current ...
Added: May 14, 2026
Гущина В. А., Physics of Complex System 2026 Vol. 7 No. 1 P. 3–15
Heterostructures based on ZnO nanorods and CsPbBr3 nanocrystals were investigated for their potential as semiconductor SERS substrates. We found that ZnO morphology governs the efficiency of interfacial energy transfer, leading to enhanced photoluminescence under 390 nm excitation and a noticeable reduction of the bandgap in the composites. Raman analysis revealed a pronounced intensity enhancement and ...
Added: May 14, 2026
Semenova D., Radygina A., Zaripova J. et al., Nutrition and Food Science 2026 Vol. 56 No. 5 P. 969–981
Purpose
This study aims to investigate how objective (chemical composition, processing method) and subjective (perceived fat content) milk characteristics influence taste perception.
Design/methodology/approach
A blind tasting experiment was conducted with 36 participants who evaluated six commercial milk samples (all 2.5% fat) differing in thermal processing and brand territorial coverage. Each sample was tasted twice, yielding 432 observations. Fatty ...
Added: May 14, 2026
Гущина В. А., Russian Journal of Inorganic Chemistry 2024 Vol. 69 No. 6 P. 940–948
Currently, ABX3 nanoparticles (NPs) based on lead halides attract the attention due to their unique optical properties and a wide range of applications. The preparation of NPs with lead as a partial or complete replacement is particularly interesting because of the toxicity of this chemical element and most of its compounds. In this study, we propose a ...
Added: May 6, 2026
Ekaterina G. Odintsova, Darya L. Gurina, Yury A. Budkov, Colloids and Surfaces A: Physicochemical and Engineering Aspects 2026 Vol. 736 Article 139693
The behavior of water under nanoscale confinement is crucial for numerous technologies; yet predicting its
properties remains challenging due to the complex interplay of pore geometry and surface chemistry. While the
influence of general hydrophilicity is recognized, the specific role of the flexibility of surface functional groups - a
key molecular-scale feature - has remained underexplored. To address ...
Added: January 24, 2026
Taye B., Bi Z., Zhilenkov A. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 2 P. 685–690
Interfacial defects remain a key limitation of the performance of perovskite solar cells (PSCs). Using first-principles density functional theory (DFT) and SCAPS-1D device simulations, we examine how sulfonate and primary amine salts can jointly passivate the SnO2/perovskite buried interface. The sulfonate group forms strong S–O–Sn bonds with surface Sn atoms, while the ammonium cation anchors ...
Added: December 29, 2025
Gurina D., Budkov Y., Colloids and Surfaces A: Physicochemical and Engineering Aspects 2026 Vol. 733 Article 139276
Molecular dynamics (MD) simulations were employed to investigate the solubilization of gallic acid (GA) and quercetin (QCTN) in water reverse micelles (RMs) stabilized by sodium bis(2-ethylhexyl) sulfosuccinate (AOT) in isooctane, carbon tetrachloride (CCl4), and supercritical carbon dioxide (scCO2). The results revealed distinct solvent-dependent RM morphologies: ellipsoidal and near-spherical in isooctane, near-spherical in CCl4, and elongated, ...
Added: December 17, 2025
СПб.: Университет ИТМО, 2024.
Издание содержит результаты научных работ молодых ученых, доложенные на Пятьдесят третьей (LIII) научной и учебно-методической конференции Университета ИТМО, проходившей с 29 января по 02 февраля 2024 года, по тематикам: робототехника и искусственный интеллект, системы управления и электроинженерия, мультимедиа-технологии, дизайн и юзабилити, программная инженерия и компьютерные технологии, цифровые технологии в индустрии, фотоника и прикладная оптика, деятельность ...
Added: December 13, 2025
Степанов Л. В., Анциферов П. С., Матюхин Н. Д., Журнал технической физики 2025 № 7 С. 1297–1302
Описана установка для получения демпфированного вакуумного разряда с пиковым током 18 kA и длительностью меньше 1 μs. В таком разряде реализуется ранее обнаруженное явление возникновения многозарядных ионов в вакуумном разряде в условиях отсутствия пинчевания на стадии формирования разрядного столба плазмы. Основная идея заключается в быстром прекращении разрядного тока после этой стадии, что может позволить реализовать ...
Added: October 7, 2025
Zhu X., Jiang X., Fu S. et al., Advanced Energy Materials 2025 Vol. 15 No. 47 Article e03666
Perovskite solar cells (PSCs), as a promising photovoltaic technology, have achieved remarkable progress in efficiency. However, perovskite with soft-lattice nature inherently suffers from severe iodine losses under photothermal operation, leading to the irreversible degradation in their photovoltaic performance, thereby remaining a great challenge to achieving durable PSCs. Here, electrostatic iodine regulation is reported by rational ...
Added: October 4, 2025
Туханова В. Ю., Костюмология 2025 Т. 10 № 2
The article presents the method of developing the digital animated presentation of clothing. The features of the design stages of digital products of fashion industry are considered, taking into account the immersive effect. The author provides an overview of the current state of development of immersive technologies in the global context. Immersiveness is defined as ...
Added: October 3, 2025
Туханова В. Ю., Kankulov A., Костюмология 2025 Т. 9 № 4
The article presents the study focused on the development of a conceptual scientific and methodological model for designing products in the apparel and footwear industries within a digital environment. It examines the specific features of the design stages of light industry products, considering the integration of innovative technologies into higher education programs for training specialists ...
Added: October 3, 2025
Туханова В. Ю., Бородина Е. В., Костюмология 2024 Т. 9 № 2
The article presents a study of the technology of creating digital 3D models using computer programs. The impact of Computer-Generated Imagery on the formation of fashion trends in creative industries is analyzed. The purpose of the study is to study Computer-Generated Imagery in the development of the fashion industry and the formation of fashion trends. ...
Added: October 3, 2025
Туханова В. Ю., Андреева Е. Г., Известия высших учебных заведений. Технология легкой промышленности (Российская Федерация) 2024 Т. 68 № 4 С. 106–112
The article presents the method for recognizing the initial structural elements of the technical sketch. This is followed by converting it into the scan of patterns to obtain the primary digital sample of the model. The basis of the study is the metric index of classification female’s figure’s types in the three-dimensional design of garments. ...
Added: October 3, 2025
Андреева Е. Г., Известия высших учебных заведений. Технология легкой промышленности 2024 Т. 68 № 4 С. 106–112
The article presents the method for recognizing the initial structural elements of the technical sketch. This is followed by converting it into the scan of patterns to obtain the primary digital sample of the model. The basis of the study is the metric index of classification female’s figure’s types in the three-dimensional design of garments. ...
Added: September 29, 2025
Nesterova I., Kondratyuk N., Budkov Y. et al., Advances in Colloid and Interface Science 2025 Vol. 346 Article 103623
Room temperature ionic liquids show great promise as electrolytes in various technological applications, such as energy storage or electrotunable lubrication. These applications are particularly intriguing due to the specific behavior of ionic liquids in nanoconfinement. While previous research has been focused on optimizing the required characteristics through the selection of electrolyte properties, the contribution of ...
Added: September 2, 2025
Zheng Y., Zheng T., Luo S. et al., Small 2025 Vol. 21 No. 39 Article e05659
A complementary passivation strategy employing the simultaneous use of phenylethylammonium iodide (PEAI) and ethylhydrazinoacetate hydrochloride (EHACl) is developed to mitigate multiple surface defects in perovskite films. PEAI mainly aims at vacancy defects and tends to induce quasi-2D/3D interface reconstruction, while rich Lewis base sites within EHACl enable it to selectively passivate Lewis acid defects such ...
Added: August 15, 2025
Fadeeva I., Trofimchuk E., Anna A. Forysenkova et al., Polymers 2021 Vol. 13 No. 22 P. 1–21
Today, the synthesis of biocompatible and bioresorbable composite materials such as “polymer matrix-mineral constituent,” which stimulate the natural growth of living tissues and the restoration of damaged parts of the body, is one of the challenging problems in regenerative medicine. In this study, composite films of bioresorbable polymers of polyvinylpyrrolidone (PVP) and sodium alginate (SA) ...
Added: August 11, 2025
Krasnov L., Malikov D., Kiseleva M. et al., Scientific data 2025 Vol. 12 Article 1236
Solubility is one of the key properties of organic compounds that determines their applications in chemistry, materials science and pharmaceuticals. However, predicting solubility values in any solvent except water from a molecular structure still remains a challenging task in modern cheminformatics, not least due to the lack of large and diverse datasets. In this study, ...
Added: July 15, 2025
D.E. Roshchin, Torkunov M. K., Shiyanova K. A. et al., Polymer Engineering and Science 2025 Vol. 65 No. 1 P. 290–298
The influence of cavitation-generated free radicals on the suspension polymerization of n-butyl methacrylate under ultrasonic irradiation was investigated experimentally and by kinetic modeling. A kinetic model of radical polymerization was proposed, considering the interaction of free radicals generated in cavitation bubbles with both monomer molecules and free radicals formed within the monomer droplets. It was found ...
Added: February 2, 2025
Mikhail R. Samatov, Mikhalev E., Abramova I. et al., The Journal of Physical Chemistry Letters 2024 Vol. 15 No. 48 P. 11939–11943
Water treatment methods based on cold plasma discharge in cavitating liquid have been actively developing in recent years. However, some conditions, such as the conductivity of the medium, can limit the possibility of plasma ignition. The authors proposed a new method for activating an electric discharge in a cavitating liquid environment based on the use ...
Added: November 5, 2024