Search Results - "Ul’yanov, A. V."
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Several Features of the Directional Radiation of a Plane Aperture Excited by a Ultrawideband Signal
Published in Journal of communications technology & electronics (01-11-2021)“…Several problems of the analysis of parameters characterizing directional character of the aperture radiation under excitation by an ultrawideband signal are…”
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2
Energy Conversion Efficiency in an Ultrawideband Pulse Emitter
Published in Journal of communications technology & electronics (01-03-2020)“…A calculation model of a plane aperture with nonuniform asynchronous excitation is constructed. The calculated results are in good agreement with the…”
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3
Neutron Reflectometry in Russia: Current State and Prospects
Published in Crystallography reports (01-02-2022)“…The review is devoted to the current state of affairs and prospects for development in the field of neutron reflectometry on the existing and future neutron…”
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4
Research Reactor PIK: The First Experiments
Published in Crystallography reports (01-10-2022)“…The parameters and current status of development of the highest-power neutron source of the PIK research reactor (Petersburg Nuclear Physics Institute named by…”
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5
A Radiophysical Method for Studying Deformation of Ultrawideband Pulses during Propagation in the Atmosphere
Published in Technical physics letters (01-10-2022)“…Field experiments were carried out to measure ultrawideband subnanosecond radiation pulses in the time domain, taking into account the influence of reflection…”
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6
Physicochemical Grounds for Application of Schungite for Neutralization of 1,1-Dimethylhydrazine in Wastewater
Published in Colloid journal of the Russian Academy of Sciences (2018)“…Chromatography–mass spectrometry and MALDI mass spectrometry have been used to study the interaction of 1,1-dimethylhydrazine and products of its oxidation…”
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7
Interaction of S,N-Derivatives of Alkylhydrazines with Carbon Sorbents
Published in Colloid journal of the Russian Academy of Sciences (01-07-2019)“…S,N-derivatives of alkylhydrazines, including 1,1-dimethylhydrazine, have been synthesized for the quantitative analysis of trace impurities of hydrazines in…”
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8
Adsorption Properties of Thiocontaining Schungite
Published in Colloid journal of the Russian Academy of Sciences (01-09-2018)“…Chromatography–mass spectrometry and thermodesorption mass spectrometry have been employed to study mineral schungite-III, in which various thiocompounds have…”
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9
Generation of acoustic waves by cw laser radiation at the tip of an optical fiber in water
Published in Acoustical physics (01-09-2016)“…We investigate the specific features of acoustic signals generated in water under the action of cw laser radiation with a power of 3 W at wavelengths of 0.97,…”
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10
Simulation and Hydrodynamic Characteristics of the Motion of a Melt in a Ladle
Published in Metallurgist (New York) (01-07-2018)“…We analyze the processes of modification and refinement of a melt in a casting ladle from the viewpoint of the nature, possibilities, and efficiency of their…”
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11
Study of the Products of the Mechanochemical Activation of Teflon in a Mixture with Metals by Chromatography-Mass Spectrometry and Thermodesorption Mass Spectrometry
Published in Journal of analytical chemistry (New York, N.Y.) (01-05-2019)“…Mass spectrometry and chromatography are used to study the decomposition products of Teflon mixtures of the “Fluralite-4” brand with magnesium, tungsten, and…”
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12
Special Features of the Interaction between Asymmetric Dimethylhydrazine and Thiocontaining Schungite
Published in Colloid journal of the Russian Academy of Sciences (01-09-2018)“…The interaction between asymmetric dimethylhydrazine and thiocontaining mineral schungite-III has been studied. Chromatography–mass spectrometry has been used…”
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13
Methods of Feedback Arrangement for Smart Surgical Systems Based on Fiber Lasers
Published in Biomedical engineering (01-05-2019)“…The potentials of using various physical principles of feedback in fiber laser-based surgical systems were investigated. Different ways of providing feedback…”
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14
Heating of Energetic Materials by Continuous-Wave Near-IR Laser Radiation
Published in Combustion, explosion, and shock waves (01-07-2018)“…The heating of energetic materials by the radiation of fiber-coupled continuously-pumped lasers at near IR-wavelengths of 0.98, 1.56, and 1.94 μ m was studied…”
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15
Soft ionization mass spectrometry for studying desorption of bioactive compounds from a shungite surface
Published in Colloid journal of the Russian Academy of Sciences (01-03-2017)“…Ionized products of desorption of biologically active amino compounds (1,1-dimethylhydrazine, diglycine, tyrosine, and tryptophan) from the surface of a…”
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16
Corrosion Monitoring of Pipelines of Heat-Supply Systems Based on Gravimetric and Electrochemical Methods of Analysis
Published in Protection of metals and physical chemistry of surfaces (01-12-2017)“…The aim of this work is to investigate the possibility of the application of the procedure for the prediction of the rate of corrosion for internal surfaces of…”
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17
Empirical Evaluation of the Transient Response of an Aperture Antenna When It Is Excited by a Video Pulse
Published in Journal of communications technology & electronics (01-12-2023)“…A method of empirical evaluation of the transient response of an aperture-type antenna when it is excited by a video pulse has been proposed. The evaluation…”
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18
Predicting gas-defect formation on changing the investment-casting technology
Published in Steel in translation (01-11-2013)“…The prediction of gas-defect formation in the low-temperature firing of shell molds prior to the introduction of steel melt is considered. The likelihood of…”
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19
Systematic Errors When Determining the Parameters of the Spectrum of Light-Emitting Diodes Using Two Photoreceivers
Published in Measurement techniques (01-07-2013)“…A method for the operational determination of the wavelength of radiation at the maximum of the spectrum of a light-emitting diode and the width of the…”
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20
Thermolysis of Artificial Polymer Stones. Part 2. Acrylic Stones of Different Compositions
Published in Russian Journal of Physical Chemistry A (01-07-2024)“…Thermolysis of acrylic artificial stones of various brands was studied by thermal desorption mass spectrometry. The energies of the observed processes were…”
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