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Dopant Implantation into the Silicon Substrate with Non-Planar Surface

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Energy and Power Engineering 2010年第2期2卷 73-77页

作者： gennady A. Tarnavsky Evgenii v. vorozhtsov 不详

The influence of technological process parameters (aiming angle and implantation energy) on the distributions of dopant concentrations in a silicon substrate is investigated by computer modeling.

关键词： Computer Modeling Silicon Doping Implantation Donor Acceptor Dopants

Machine learning-driven synthesis of TiZrNbHfTaC_(5) high-entropy carbide

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npj Computational Materials 2023年第1期9卷 2293-2303页

作者： Alexander Ya.Pak vadim Sotskov Arina A.Gumovskaya Yuliya Z.vassilyeva Zhanar S.Bolatova Yulia A.Kvashnina gennady Ya.Mamontov Alexander v.Shapeev Alexander G.Kvashnin National Research Tomsk Polytechnic University 30 Lenin AvenueTomsk 634050Russia Skolkovo Institute of Science and Technology Skolkovo Innovation CenterBolshoi Blv.30Building 1Moscow 121205Russia Pirogov Russian National Research Medical University 1 Ostrovityanova St.Moscow 117997Russia

Synthesis of high-entropy carbides(HEC)requires high temperatures that can be provided by electric arc plasma ***,the formation temperature of a single-phase sample remains ***,under some temperatures multi-phase structures can *** this work,we developed an approach for a controllable synthesis of HEC TiZrNbHfTaC_(5) based on theoretical and experimental *** used Canonical Monte Carlo(CMC)simulations with the machine learning interatomic potentials to determine the temperature conditions for the formation of single-phase and multi-phase *** full agreement with the theory,the single-phase sample,produced with electric arc discharge,was observed at 2000 *** 1200 K,the sample decomposed into(Ti-Nb-Ta)C,and a mixture of(Zr-Hf-Ta)C,(Zr-Nb-Hf)C,(Zr-Nb)C,and(Zr-Ta)*** results demonstrate the conditions for the formation of HEC and we anticipate that our approach can pave the way towards targeted synthesis of multicomponent materials.

关键词： carbide materials

Quantum Nature of Distortion and Delay of Satellite Signals II

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Positioning 2018年第3期9卷 47-72页

作者： gennady v. Golubkov Michael I. Manzhelii Lev v. Eppelbaum Semenov Institute of Chemical Physics of RAS Moscow Russia National Research Center “Kurchatov Institute” Moscow Russia Department of Earth Sciences Tel Aviv University Tel Aviv Israel

A detailed analysis of the influence of Rydberg states to the behavior of GPS satellite signals in the D and E atmospheric layers has been carried out. It is demonstrated that these states are the main reason for the GPS signal distortion. It is shown that the behavior of satellite signals is associated with the spectral characteristics of the UHF radiation of the Rydberg states depending on the geomagnetic conditions of ionosphere. The foundations of the quantum theory of distortion and delay of GPS satellite signal propagation through D and E atmospheric layers are analyzed and expounded. The problem reduces to the resonant scattering of photons, moving in the electromagnetic field of the signal, to the Rydberg complexes populated in a two-temperature non-equilibrium plasma. The processes of creation of additional photons because of stimulated emission and resonance scattering of photons are considered. In the present work, the quantum theory of the propagation of a satellite signal in the Earth’s upper atmosphere, firstly earlier proposed by the same authors, is described in detail. The general problems of the theory and possible theoretical and applied consequences are discussed. It is explained that two main processes occurring here, are directly related to the resonant quantum properties of the propagation medium. The first process leads to a direct increase in the power of the received signal, and second—to a shift in the signal carrier frequency??and the time delay??of its propagation. The main reasons of the processes are scattering of the Rydberg electron by the ion core and presence of the neutral medium molecule in the intermediate autoionization states of the composite system populated by the strong non-adiabatic coupling of electron and nuclear motions. The main purposes of our investigation are the physical justification of the formation of parameters ?and??using the quantum dynamics of the electron behavior in the intermediate state of the Rydberg co

关键词： D and E Atmospheric Layers l Mixing Rydberg Complex Satellite Radio Signal Electromagnetic Field Resonant Photon Scattering Distortion and Delay of Satellite Signal

Anode Plasma Influence on Breakdown Formation in Explosive-Emission Electron Sources

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Journal of Energy and Power Engineering 2012年第9期6卷 1536-1541页

作者： Eduard N. Abdullin gennady P. Bazhenov Alexander v. Morozov Microwave Electronics Laboratory Institute of High Current Electronics SB RAS Tomsk 634055 Russia

Breakdown formation in the explosive-emission sources is related to the interelectrode gap filling with the cathode and anode plasma generated at the anode and in the gap under the beam influence. Under conditions of saturation of the cathode plasma emissive ability as well as when the measures on the emission boundary stabilization are taken, the anode plasma has the deciding part in the formation of the electron source breakdown. The paper presents the results of the anode plasma investigations obtained to solve the problem of the electron beam length increase in the explosive-emission sources. The data concerning the gas release from the anode, the mechanism of the anode plasma formation and the anode plasma influence on the parameters of the generated electron beam are presented as well.

关键词： Explosive-emission electron source gas release anode plasma breakdown.

Discharge Stabilization and Obtaining of Quasi-Stationary Electron Beams in Explosive-Emission Sources

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Journal of Energy and Power Engineering 2012年第8期6卷 1363-1368页

作者： Eduard N. Abdullin gennady P. Bazhenov Alexander v. Morozov Microwave Electronics Laboratory Institute of High Current Electronics SB RAS Tomsk 634055 Russia

Quasistationary discharge mode setting in the explosive-emission sources is related to the saturation of the cathode plasma emissive ability resulting in the decrease of the velocity of plasma propagation into the interelectrode gap. It was shoran previously that the electron beam space charge providing the current rise slowing-down is of great importance in the process of the discharge mode stabilization. The paper considers a possibility of the discharge protraction at the expense of decrease of the ion charge order in the plasma composition and application of the directed plasma flows. The data concerning obtainig of micro- and millisecond electron beams in the explosive-emission sources are presented as well.

关键词： Explosive-emission electron source quasi-stationary discharge electron beams.

CATALYTIC PROPERTIES OF NANOFIBROUS CARBON IN SELECTIvE OXIDATION OF HYDROGEN SULPHIDE

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China Particuology 2006年第2期4卷 70-72页

作者： gennady G. Kuvshinov vasiliy v. Shinkarev Alexey M. Glushenkov Maxim N. Boyko Dmitriy G. Kuvshinov Department of Chemical Engineering Novosibirsk State Technical University Pr.Karla Marksa 20 Novosibirsk Russia Group of catalytic technologies of carbon materials synthesis Boreskov Institute of Catalysis Pr.Akademika Lavrentieva 5 Novosibirsk Russia

Nanofibrous carbonaceous materials （NFC） as a new class of materials having many applications, can catalyze the selective oxidation of H2S to sulfur. The correlation between NFC structure and its activity and selectivity in H2S oxidation was determined. It is demonstrated that selectivity can be improved if NFC with more ordered structure be synthesized and the portion of the original catalyst in carbon be reduced by increasing the carbon accumulated in the catalyst.

关键词： nanostructure carbon nanofiber carbon nanotubes carbon yield selective oxidation of the hydrogen sulfide oxygen excess

Cas9-targeted Nanopore sequencing rapidly elucidates the transposition preferences and DNA methylation profiles of mobile elements in plants

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Journal of Integrative Plant Biology 2023年第10期65卷 2242-2261页

作者： Pavel Merkulov Sofya Gvaramiya Maxim Dudnikov Roman Komakhin Murad Omarov Alina Kocheshkova Zakhar Konstantinov Alexander Soloviev gennady Karlov Mikhail Divashuk Ilya Kirov All‐Russia Research Institute of Agricultural Biotechnology Moscow 127550Russia Moscow Institute of Physics and Technology Dolgoprudny 141701Russia All‐Russia Center for Plant Quarantine Ramenski 140150Russia N.v.Tsitsin Main Botanical Garden of the Russian Academy of Sciences Moscow 127276Russia

Transposable element insertions(TEIs) are an important source of genomic innovation by contributing to plant adaptation, speciation, and the production of new varieties. The often large,complex plant genomes make identifying TEIs from short reads difficult and expensive. Moreover, rare somatic insertions that refect mobilome dynamics are difficult to track using short *** address these challenges, we combined Cas9-targeted Nanopore sequencing(CANS) with the novel pipeline Nano Cas TE to trace both genetically inherited and somatic TEIs in plants. We performed CANS of the EvADé(EvD) retrotransposon in wild-type Arabidopsis thaliana and rapidly obtained up to 40× sequence *** of hemizygous T-DNA insertion sites and genetically inherited insertions of the EvD transposon in the ddm1(decrease in DNA methylation1) genome uncovered the crucial role of DNA methylation in shaping EvD insertion *** also investigated somatic transposition events of the ONSEN transposon family, finding that genes that are downregulated during heat stress are preferentially targeted by ONSENs. Finally, we detected hypomethylation of novel somatic insertions for two ONSENs. CANS and Nano Cas TE are effective tools for detecting TEIs and exploring mobilome organization in plants in response to stress and in different genetic backgrounds, as well as screening T-DNA insertion mutants and transgenic plants.

关键词： Arabidopsis DNA methylation Nanopore sequencing transposon insertions

Acousto-Optic Measurement Device with High Angular Resolution

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Journal of Sensor Technology 2012年第2期2卷 55-59页

作者： gennady Kaloshin Igor Lukin v.E. Zuev Institute of Atmospheric Optics Russian Academy of Sciences Siberian Branch Tomsk Russia

The paper introduces a new laser interferometry-based method for diagnosis of random media by means of high accuracy angle measurements and describes the results of its development and testing. Theoretical calculations of the dependence of the range of the laser interferometer on laser beam parameters, device geometry, and atmospheric turbulence characteristics are reported. It is demonstrated that at moderate turbulence intensities corresponding to those observed most frequently in turbulent atmosphere at moderate latitudes and with low interference contrast values, the performance range of the laser interferometer-based device exceeds 5 km.

关键词： Laser Beam Acousto-Optical Device Diffraction Atmospheric Turbulence

Attenuation correction technique for fluorescence analysis of biological tissues with significantly different optical properties

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Frontiers of Optoelectronics 2020年第4期13卷 360-370页

作者： Tatiana A.SAvELIEvA Marina N.KURYANOvA Ekaterina v.AKHLYUSTINA Kirill G.LINKOv gennady A.MEEROvICH victor B.LOSCHENOv Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991Russia National Research Nuclear University MEPhl Moscow 115409Russia

During intraoperative fluorescence navigation to remove various neoplasms and during pharmacokinetic studies of photosensitizers in laboratory animals,in many cases,the ratio of photosensitizer accumulation in the tumor and normal tissue can reach>10-fold,which inevitably changes their optical *** the same time,the tumor formation process causes various metabolic and structural changes at cellular and tissue levels,which lead to changes in optical properties.A hardwaresoftware complex for the spectral-fluorescence studies of the content of fluorochromes in biological tissues with significantly different optical properties was developed,and it was tested on optical phantoms with various concentrations of photosensitizers,absorbers,and *** correct the influence of optical properties on the photosensitizer concentration analysis by fluorescence spectroscopy,we propose the spectrum-processing algorithm,which combines empirical and theory-based approaches.

关键词： fluorescence spectroscopy scattering absorption attenuation correction optical phantoms