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Researching the Processes in a Powerful Impulsive arc Discharge of a Technological Device for Producing an Ultradispersive Particles
IEEE NW Russia Young Researchers in Electrical and Electronic Engineering Conference. 2016. P. 736–739.
Яшкардин Р. В., Sorokin K.
a brief description of the principles of functioning of the device for producing an ultradispersive metal powders under the affection of powerful electrically charged energy streams is presented in the article. A method of creating a mathematical model of a device components for producing an ultrsadispersive particles is explained. A comparison of the results of numeric modeling of the processes to take place in the device to an experimental received data is showing the adequacy of the mathematical model. Basing the received data, the abrupt change of a plasma arc resistance while the device working is being demonstrated.
Language:
English
Kryzhanovskaya N., Makhov I., Dragunova A., St. Petersburg Polytechnical University Journal: Physics and Mathematics 2026 Vol. 19 No. 1.1 P. 98–104
The planar microcavity structure was grown using molecular-beam epitaxy.
Single-mode lasing was observed at a wavelength of 960 nm for pillars with a diameter of
15 μm. At 300 K, the lasing threshold was approximately 30 mW. Increasing the pump
power to 2.7 times the threshold power resulted in a mode energy shift of approximately
1 meV. This shift ...
Added: September 23, 2026
Andreeva S., Gavrilov A. A., Dzhikirba K. R. et al., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 Article 134515
We examine plasma excitations with linear dispersion in a system of superconducting electrons in thin
NbN disks. Using frequency-domain terahertz spectroscopy, we study the evolution of plasmons up to critical
temperature Tc. The observed excitations tend to shift to the lower frequencies while temperature is increasing
and the spectral features vanish at T > Tc. We study the ...
Added: September 23, 2026
Образцова А. А., Ivanov K., Moiseev E. et al., Journal of Physics D: Applied Physics 2026 Vol. 59 No. 30 P. 305103
We demonstrate a thermo-optically tunable microlaser based on an InGaAs/GaAs quantum-dot (QD) active region employing a deformed limaçon-shaped cavity. The asymmetric geometry effectively lifts the degeneracy of high-Q whispering-gallery modes, enabling single-mode lasing. A side-mode suppression ratio exceeds 25 dB over a wide current range. Under continuous-wave electrical pumping, the device achieves a peak output power ...
Added: September 23, 2026
Budkov Y., Journal of Chemical Physics 2026 Vol. 165 No. 12 Article 124105
Exact theories of electrolyte structure must satisfy the nonlocal constraints imposed by electrostatic screening, yet these constraints are most commonly formulated only for homogeneous bulk systems and at the level of two-point correlations. Here, we develop a unified field-theoretic framework that extends them to general inhomogeneous ionic fluids and nonlinear charge correlations. Using a standard ...
Added: September 22, 2026
Боровицкая И. В., Пименов В. Н., Коршунов С. Н. et al., Перспективные материалы 2026 № 10 С. 37–54
Проведено сравнение, обобщение и систематизация механизмов эрозии и разрушения
поверхности малоактивируемых материалов, перспективных для использования в
качестве материалов вакуумной камеры термоядерных реакторов: ванадия, его сплава
V – 10 Ti – 6 Cr – 0,05 Zr – 0,1 Si и вольфрама при последовательном воздействии на
них ионных и тепловых потоков. Тепловые потоки имитировали с помощью мощного
импульсного лазерного излучения (ЛИ), создаваемого ...
Added: September 22, 2026
Iontsev M.A., Mukhin S. I., Fistul M. V., Physical Review B: Condensed Matter and Materials Physics 2016 Vol. 94 No. 17 P. 174–510
We report a theoretical study of the ac response of superconducting quantum metamaterials (SQMs), i.e., an array of qubits (two-level systems) embedded in a low-dissipative resonator. By making use of a particular example of a SQM, namely the array of charge qubits capacitively coupled to the resonator, we obtain a second-order phase transition between an ...
Added: September 22, 2026
Shilov A. L., Elesin L., Kravtsov M. et al., Nature Communications 2026 Vol. 17 No. 1 Article 9734
Identifying the microscopic processes limiting conductivity is essential for understanding correlated quantum materials. In twisted bilayer graphene, metallic resistivity follows ρ ~ Tα with widely varying α, fueling competing interpretations from phonon-limited transport and umklapp scattering to strange metallicity and heavy-fermion renormalization. Here, we use terahertz excitation to selectively heat electrons while keeping the lattice cold, separating ...
Added: September 20, 2026
Копьев А., JETP Letters 2026 Vol. 123 No. 5 P. 310–316
The incompressible three-dimensional Euler equations develop very thin pancake-like regions of exponen tially increasing vorticity. The characteristic thickness of such regions decreases exponentially with time, while the other two dimensions do not change considerably, making the flow near each pancake strongly anisotropic. The pancakes emerge in increasing number with time, which may enhance the anisotropy ...
Added: September 18, 2026
Дюканов П. А., Kozhukhov M., Popov D. et al., Электронная техника. Серия 3: Микроэлектроника 2026 Т. 201 № 1 С. 28–34
The paper presents the results of device and process modeling of bipolar transistors on a silicon - silicon oxide - silicon structure. A comparison of the output characteristics of the models and transistor samples showed the high accuracy of the developed model. To improve the performance of eld-e ect transistors with a control p-n-junction, design ...
Added: September 17, 2026
Захаров А. В., Düven H., Capar M. I., Physics Letters A 2026 No. 576 Article 131388
Molecular dynamics simulations were carried out to study the structural properties of nematic pentyl
cyanobiphenyl (5CB) and pentyloxy cyanobiphenyl (5OCB) liquid crystals (LCs) doped with gold nanoparti
cles (GNPs) of different numbers, shapes and sizes. The spherical GNPs of two different radii and rod-like have
been doped in 5CB and 5OCB cyanobiphenyl liquid crystals. In order to describe ...
Added: September 17, 2026
Andreev D. V., Kornev S. A., Bondarenko G.G. et al., Inorganic Materials: Applied Research 2026 Vol. 17 No. 5 P. 1226–1230
Comparative studies are carried out to investigate high-field charge degradation effects in the gate
dielectric of metal—insulator—semiconductor (MIS) structures with aluminum and polysilicon gates.
Charging phenomena in MIS structures are explored using high-field electron injection into the dielectric
under conditions of gradually increasing voltage current density, with periodic short-term switching to a measurement
mode at a constant low injection ...
Added: September 15, 2026
Cherkashina N. I., Pavlenko V. I., Bondarenko G.G. et al., Inorganic Materials: Applied Research 2026 Vol. 17 No. 5 P. 1247–1257
The description is given to the synthesis of a flexible polymer composite for radiation protection
based on a rubber matrix and rare-earth metal oxides (Dy2O3 and Gd2O3). The physico-mechanical parameters
are established for the compositions with dysprosium oxide as follows: the density ranging from 1.31 to
2.44 g/cm3, tensile strength is staying between 6.06 and 1.72 MPa. In ...
Added: September 15, 2026
Poddiakov A., / Series Social Science Research Network "Social Science Research Network". 2026. No. 7437658.
Clarity of knowledge and reasoning is necessary in many cases. Yet vagueness in scientific thinking related to surprise, curiosity, "ability to engage with not-knowing" (de Freitas) and abductive reasoning is also a crucially important source of scientific creativity which supplements combinatorial logic when dealing with the already known. Starting from studies by C. S. Peirce ...
Added: September 15, 2026
Water confined in heterogeneous clay–quartz pores: Structure and dynamics from atomistic simulations
Glushak A., Tararushkin E., Smirnov G., Colloids and Surfaces A: Physicochemical and Engineering Aspects 2027 Vol. 752 Article 141756
The molecular-scale behavior of water in heterogeneous clay–quartz systems is critical for understanding cementation processes in natural soils and compacted bentonite, which is crucial for oil recovery and nuclear waste disposal barriers construction. Here we investigate how heterogeneity of mixed Na-montmorillonite and α-quartz surfaces affect water structure and dynamics in nanopores of 2.5 to 60 Å ...
Added: September 15, 2026
Bochkin G., Doronin S., Fel’dman E. et al., Lobachevskii Journal of Mathematics 2024 Vol. 45 No. 3 P. 1188–1207
We consider the remote state restoring and perfect transfer of the zero-order coherence matrix (PTZ) in a spin system governed by the XXZ-Hamiltonian conserving the excitation number. The restoring tool is represented by several nonzero Larmor frequencies in the Hamiltonian. To simplify the analysis we use two approximating models including either step-wise or pulse-type time-dependence ...
Added: September 14, 2026
Бондаренко Г.Г., Фишер М. Р., Кристя В. И., Известия РАН. Серия физическая 2026 Т. 90 № 4 С. 867–874
Сформулирована модель катодного слоя тлеющего газового разряда при наличии на
части рабочей поверхности катода тонкой диэлектрической пленки. Показано, что переход тлеющего разряда в дуговой разряд, сопровождающийся значительным увеличением плотности разрядного тока и уменьшением катодного падения напряжения, происходит наиболее быстро, если
пленка занимает примерно половину поверхности катода. ...
Added: September 4, 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
Shchetinin I., Nikolenko P., Nizamov T. et al., Ceramics International 2026 Vol. 52 No. 3 P. 3500–3511
In this work, we comprehensively investigated the influence of Indium doping on the structure, magnetic and functional properties of strontium M-type hexaferrites SrFe12-xInxO19 nanoparticles (where x = 1.7, 1.8, 2.0). Colloidally stable SrFe12-xInxO19 nanoparticles (∼10 nm) were synthesized using a combination of the citrate method and high-energy ball milling. We demonstrate that doping reduces both the specific saturation magnetization and, ...
Added: March 16, 2026
Lebedev M. D., Goncharenko A. A., Skvortsov I. A. et al., Russian Journal of Inorganic Chemistry 2024 Vol. 69 P. 472–478
This work describes the use of silica particles obtained by sol-gel method as a template for deposition of supramolecular complexes of melamine cyanurate. To obtain SiO2@melamine-cyanurate (SiO2@MCA) material, the method of covalent modification of silica surface by melamine molecules (SiO2-mel) was applied and the method of its further functionalization by hydrogen-bonded organic framework of melamine-cyanurate ...
Added: September 16, 2025
Кузьминых И. О., Kuzin A., Флоря И. Н. et al., Нано- и микросистемная техника 2025 Т. 27 № 4 С. 184–194
В работе рассмотрены основные варианты детектирования водорода, а также приведены требования, которые предъявляются к сенсорам водорода. Проанализированы преимущества и недостатки существующих решений по детектированию водорода и проведен сравнительный анализ основных метрик коммерчески доступных сенсоров водорода. Было установлено, что оптические сенсоры преодолевают основную проблему существующих сенсоров – использование электрического тока в чувствительной зоне сенсоров. Данная обзорная ...
Added: April 30, 2025
Viktor A. Frantsuzov, Artemyev A., Shi X. et al., Astrophysical Journal 2024 Vol. 963 No. 1 Article 16
The investigation of mechanisms responsible for the heating of cold solar wind electrons around the Earth’s bow shock is an important problem in heliospheric plasma physics because such heating is vitally required to run the shock drift acceleration at the bow shock. The prospective mechanism for electron heating is magnetic pumping, which considers electron adiabatic ...
Added: April 25, 2025
I. N. Senchikhin, Konarev P. V., Volkov V. V. et al., Journal of Chemical Physics 2025 Vol. 162 No. 9 Article 094307
The behavior of silver nitrate in non-aqueous liquid oligomeric media—aromatic and aliphatic diglycidyl ethers and aliphatic diamine—hasbeen investigated. By employing UV–visible spectrophotometry and dynamic light scattering, it has been shown that in diglycidyl oligomers,regardless of the nature of the monomeric unit, the formation of silver nanoparticles occurs, and the kinetics of this process has been ...
Added: March 10, 2025
Уфа: Башкирский государственный педагогический университет им. М. Акмуллы, 2024.
The collection contains abstracts of reports published following the work of sections of the II All-Russian Youth School Conference. The articles were reviewed and grouped according to the thematic areas of the conference. The collection contains abstracts of oral and poster presentations by students, masters, postgraduates, university professors, teachers and school students. ...
Added: March 5, 2025