Search Results - "Karpov, A. I."
-
1
Measurement of the 9Be(d, xt) Reaction Total Cross Sections by Secondary Activation and Spectroscopy Methods
Published in Bulletin of the Russian Academy of Sciences. Physics (01-08-2024)“…Total cross sections σ d , xt of reaction 9 Be( d , xt ) are measured in the 1.5–12 МeV range of deuteron energies with an error of 8.3% using activation…”
Get full text
Journal Article -
2
Discrete Acoustics: ARMA-Modeling of Time Processes, Theory
Published in Acoustical physics (01-12-2023)“…In physics, in particular, acoustics, time is traditionally considered as a continuous coordinate. Some exception is signal processing, where sampling is…”
Get full text
Journal Article -
3
Application of Autoregressive Moving Average Modeling of Random Processes to Identify the Loss Factor of Linear Oscillatory Systems
Published in Acoustical physics (01-11-2021)“…Experimental identification of the loss factor in acoustic media and elastic structures is one of a number of problems that have not been completely solved…”
Get full text
Journal Article -
4
Nuclear Scanning Microprobe Analysis of Silicon Carbide Epilayers
Published in Bulletin of the Russian Academy of Sciences. Physics (01-08-2024)“…The surfaces of homoepitaxial 4H-SiC layers were studied using a nuclear scanning microprobe in the Rutherford backscattering mode. Analysis of the state of…”
Get full text
Journal Article -
5
Activation Measurements of the Integral Cross Sections of the 12C(d,X)13N, 14N(d,X)15O, 14N(d,X)13N, 14N(d,X)11C, and 16O(d,X)17F Reactions
Published in Bulletin of the Russian Academy of Sciences. Physics (01-10-2020)“…Cross sections of the 12 C( d ,X) 13 N (β + , T 1/2 = 9.965 min), 14 N( d ,X) 15 O (β + , T 1/2 = 122 s), 14 N( d ,X) 13 N (β + , T 1/2 = 9.965 min), 14 N( d…”
Get full text
Journal Article -
6
Recycling of Solid Products of Municipal Waste Pyrolysis with Production of Energy Fuel
Published in Thermal engineering (2024)“…The purpose of the study was development of a technology for the extraction of a carbon-rich concentrate suitable for use as an energy fuel from solid products…”
Get full text
Journal Article -
7
Searching for Centers of Point Emissions on the Cathode of a Multiwire Proportional Chamber via Atomic Force Microscopy
Published in Bulletin of the Russian Academy of Sciences. Physics (01-08-2024)“…Spontaneous self-sustained currents on the cathodes of multiwire proportional chambers pose a problem for detectors in experiments at the Large Hadron Collider…”
Get full text
Journal Article -
8
The Influence of Flow Regulator Dynamics on the Internal Ballistic Parameters of Multi-Nozzle Solid Propellant Propulsion. Results of Numerical Modeling
Published in Russian aeronautics (2022)“…The paper presents the mathematical model, numerical algorithm and results of parametric study for the parameters of multi-nozzle solid propellant propulsion…”
Get full text
Journal Article -
9
Nanostructured Emission Current Sources in Multiwire Proportional Chambers
Published in Bulletin of the Russian Academy of Sciences. Physics (01-11-2023)“…The mechanism of occurrence of spontaneous self-sustained currents in a multiwire proportional chamber from the experiment at the Large Hadron Collider has…”
Get full text
Journal Article -
10
Microstructural Analysis of Cathode Strip Chamber Samples after Lifetime Tests
Published in Bulletin of the Russian Academy of Sciences. Physics (01-10-2020)“…The evolution of the structure of copper foil on the cathodes of prototype CMS chambers is studied, depending on the conditions of irradiation. Samples of the…”
Get full text
Journal Article -
11
Anterior Abdominal Wall Pain
Published in Rossiĭskiĭ zhurnal gastroėnterologii, gepatologii, koloproktologii (01-12-2023)“…Aim : to present modern approaches to the differential diagnosis and treatment of anterior abdominal wall pain. Key points . Pain in the anterior abdominal…”
Get full text
Journal Article -
12
Comprehensive Study of a Proportional Chamber Cathode’s Surface after Its Operation in an Experiment at the Large Hadron Collider
Published in Bulletin of the Russian Academy of Sciences. Physics (01-08-2022)“…A comprehensive study is performed of the cathode of a multiwire proportional chamber subjected to prolonged irradiation in an experiment at the LHC. The…”
Get full text
Journal Article -
13
Microbiological efficiency of the combinations of two carbapenems against antibiotic resistant Klebsiella pneumoniae strains
Published in Klinicheskaia laboratornaia diagnostika (23-05-2021)“…Combined antibiotic therapy is widely used for infections caused by carbapenem-resistant K. pneumoniae. The objective of this work was to identify the…”
Get more information
Journal Article -
14
Investigation of Air Diffusion in a Wet Foam
Published in Polymer science. Series C (01-09-2018)“…Coefficients of air diffusion and permeability for surfactant tetradecyltrimethylammonium bromide aqueous solution and synthetic detergent Fairy are estimated…”
Get full text
Journal Article -
15
Observations of Acoustic Gravity Waves during the Solar Eclipse of March 20, 2015 in Kaliningrad
Published in Russian journal of physical chemistry. B (01-11-2017)“…Results of observations of atmospheric and ionospheric parameters during the solar eclipse of March 20, 2015 have been described. The observations have been…”
Get full text
Journal Article -
16
Evaluation Transplantation of Bone-Derived Mesenchymal Stem Cell in the Patients with Hepatitis C-Related Liver Cirrhosis (Pi lot Study)
Published in Arkhivʺ vnutrenneĭ medit͡s︡iny (30-03-2021)“…Introduction. Liver cirrhosis (LC) is the final stage in the progression of chronic diffuse diseases. As common, late stages of LC do not respond to…”
Get full text
Journal Article -
17
Direct Numerical Simulation of a Supersonic Base Flow Behind a Circular Cylinder
Published in Journal of applied mechanics and technical physics (2018)“…A supersonic flow in the near wake behind a cylinder is considered. Base pressure distributions behind a circular cylinder for various Mach numbers M ∞ are…”
Get full text
Journal Article -
18
Laboratory Experimental Facility for Studying Metamaterial Sound-absorbing Duct Linings with Grazing Sound Propagation and How the Type of Source Influences their Efficiency
Published in Acoustical physics (01-05-2020)“…The article describes an experimental facility for studying and testing sound-absorbing linings made of acoustic metamaterials designed to reduce the noise…”
Get full text
Journal Article -
19
Numerical study of polyethylene burning in counterflow: Effect of pyrolysis kinetics and composition of pyrolysis products
Published in Fire and materials (01-11-2018)“…Summary The burning behavior of polyethylene in the counterflow of oxidizing air has been studied numerically with a coupled model describing feedback heat and…”
Get full text
Journal Article -
20
Investigation of the Cathode Plane Radiation Damage in the Prototypes of Multiwire Proportional Chamber from the CMS Experiment
Published in Physics of atomic nuclei (01-12-2019)“…The new results of cathode surface degradation in muon proportional chambers of CMS after a long-term irradiation with a 90 Sr β-source are presented. The data…”
Get full text
Journal Article