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Nano Research 2023年第7期16卷 10222-10233页

作者： Vadim I.Avilov Roman V.Tominov Zakhar E.Vakulov lev g.zhavoronkov Vladimir A.Smirnov Research Laboratory Neuroelectronics and Memristive Nanomaterials(NEUROMENA Lab) Southern Federal UniversityTaganrog 347922Russia Institute of Nanotechnologies Electronics and Electronic Equipment EngineeringSouthern Federal UniversityTaganrog 347922Russia

The paper shows the results of the mathematical model development and the numerical simulation of the oxygen vacancies,and the distribution of TiO,Ti_(2)O_(3),and TiO_(2)oxides in the titanium oxide nanostructure obtained by local anodic oxidation(anodization).The effect of the anodization voltage pulse duration and amplitude on the titanium oxide composition distribution and the conduction channel formation was *** device prototypes based on electrochemical titanium oxide are fabricated and *** was shown that forming free resistive switching between the low resistances state(LRS)1.43±0.54 kΩand the high resistance state(HRS)28.75±9.75 kΩwere observed during 100,000 switching cycles and LRS 1.49±0.23 kΩwas maintained for 10,000 *** resistive switching of the synaptic device prototype was *** was shown that increasing Uset from 0.5 to 1.5 V leads to different LRS from 3.96±0.19 to 0.71±0.10 kΩ.The results obtained can be used in the development of technological foundations for the formation of high-performance multilevel artificial synapses for elements of neuroelectronics and hardware neural networks.

关键词： artificial intelligence neuromorphic systems memristive cross bar resistive switching scanning probe microscopy titanium oxide

Cold Nuclear Fusion in the Unitary Quantum Theory

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Chinese journal of nuclear physics 1995年第4期17卷 360-370页

作者： lev g.Sapogin Igor V.Kulikov Depariment of Physics MADI-Technical UniversilyMoscowRussia Langenfeldgasse 68/24/18 A-1120 ViennaAustria

The interaction of the charged particles in the new Unitary Quantum theory isconsidered. It is shown that the distance of approachment of deuterons to each other verystrongly depends on the phase of the wave function and not only upon the energy. This thesis isnot discussed in the conventional quantum theory. It can easily explain the experiments on thecold nuclear fusion.

关键词： Cold nuclear fusion Unitary quantum theory Non-linear or nonlocal theories and models Nuclear reaction and scattering models

Factorizations of Finite groups and Related Topics

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Algebra Colloquium 2020年第1期27卷 149-180页

作者： lev Kazarin Department of Mathematics Yaroslavl State UniversityRussia

This is a survey on the recent progress in the theory of finite groups with factorizations and around it,done by the author and his coauthors,and this has no pretensions to cover all topics in this wide area of *** particular,we only touch the great consequences of the fundamental paper of Liebeck,Praeger and Saxl on maximal factorizations of almost simple finite groups for the theory of groups with *** each case the reader can find additional references at the end of Section *** of the methods of investigation can be used to obtain information about finite groups in general,nilpotent algebras and related nearrings.

关键词： finite groups products of groups conjugacy classes Sylow subgroups Lie type groups factorizations

Clustering of Pathogen-Response genes in the genome of Arabidopsis thaliana

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Journal of Integrative Plant Biology 2011年第10期53卷 824-834页

作者： Olga A.Postnikova Natalia Y.Minakova Alexander M.Boutanaev lev g.Nemchinov United States Department of Agriculture Agricultural Research ServicePlant Sciences InstituteMolecular Plant Pathology Laboratory Institute of Basic Biological Problems Russian Academy of Sciences

Previously, we used heterologous expressed sequence tag （EST） mapping to generate a profile of 4 935 pathogen-response genes of Arabidopsis thaliana. In this work, we performed a computer analysis of this profile, revealing 1594 non-homologous clustered genes distributed among all A. thafiana chromosomes, whose co-regulation may be related to host responses to pathogens. To supplement computer data, we arbitrarily selected two clusters and analyzed their expression levels in A. thaliana ecotypes Col-0 and C24 during infection with the yellow strain of Cucumber mosaic virus CMV（Y）. Ecotype Col-0 is susceptible to CMV（Y）, whereas C24 contains the dominant resistance gene RCY1. Upon infection with CMV（Y）, all clustered genes were significantly activated in the resistant ecotype C24. In addition, we demonstrated that posttranslational histone modifications associated with trimethylation of histone H3 lysine 27 are most likely involved in regulation of several cluster genes described in this study. Overall, our experiments indicated that pathogen-response genes in the genome of A. thaliana may be clustered and co-regulated.

关键词： CMV H3K27me3 heterologous EST mapping clustering of defense-related genes.

Predicting elastic properties of hard-coating alloys using ab-initio and machine learning methods

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npj Computational Materials 2022年第1期8卷 139-148页

作者： H.levämäki F.Tasnádi D.g.Sangiovanni L.J.S.Johnson R.Armiento I.A.Abrikosov Department of Physics Chemistry and BiologyLinköping UniversitySE-58183LinköpingSweden Sandvik Coromant S-12680StockholmSweden Materials Modeling and Development Laboratory National University of Science and Technology‘MISIS’119049MoscowRussia

Accelerated design of hard-coating materials requires state-of-the-art computational tools,which include data-driven techniques,building databases,and training machine learning *** develop a heavily automated high-throughput workflow to build a database of industrially relevant hard-coating materials,such as binary and ternary *** use the high-throughput toolkit to automate the density functional theory calculation *** present results,including elastic constants that are a key parameter determining mechanical properties of hard-coatings,for X_(1−x)Y_(x)N ternary nitrides,where X,Y∈{Al,Ti,Zr,Hf}and fraction x=0,1/4,1/2,3/4,*** also explore ways for machine learning to support and complement the designed *** find that the crystal graph convolutional neural network trained on ordered lattices has sufficient accuracy for the disordered nitrides,suggesting that existing databases provide important data for predicting mechanical properties of qualitatively different types of materials,in our case disordered hard-coating alloys.

关键词： coating alloys ternary

Energy generation Processes and Cold Nuclear Fusion In Terms of Schrodinger Equation

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Chinese journal of nuclear physics 1997年第2期19卷 115-120页

作者： lev g.Sapogin Department of Physics,Technical University(MADI)Leningrad sky pr.64,A-319,125829,Moscow,Russia Department of Physics Technical University Leningradsky prospect 俄罗斯

The energy generation processes are analyzed in terms of Schrodinger equation,theformalism of which may account for both the cold nuclear fussion phenomena and the anomalousexcessive energy occurrences of a mysterious... 详细信息

关键词： Unitary quantum theory Energy generation Anomalous excessive energy Cold nuclear fusion

Noise-Induced Origin of the Fundamental Scalar Field

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Journal of Modern Physics 2020年第4期11卷 502-508页

作者： B. I. lev A. g. Zagorodny Bogolyubov Institute for Theoretical Physics NAS of Ukraine Kyiv Ukraine

The physical nature of the fundamental scalar field generation and hence the origination of the Universe is a matter of the discussions for many years. We propose to use the statistical approach to the description of the steady states of the quasi stationary systems with the elements of the quantum field theory methods as a basis to explain the appearance of the cosmological scalar field. Particularly, we apply two fundamental principles, i.e., the H-theorem and least-energy principle to show principal possibility of the scalar field origination. Along with the basic statement that in the presence of the fundamental scalar field, the energy of the vacuum ground state is lower than the ground state energy of the vacuum with no scalar field (primary vacuum), and with regard to the nonlinear interaction of fluctuating physical fields with the scalar field, these principles are employed to reveal probable phase transitions that may be associated with origin and further evolution of the Universe. Thus, we propose the possible physical justification of the spontaneous cosmological scalar field generation.

关键词： Cosmology Noise Fundamental Scalar Field

Molecular recognition and homochirality preservation of guanine tetrads in the presence of melamine

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Nano Research 2020年第9期13卷 2427-2430页

作者： Yanghan Chen Chong Chen Pengcheng Ding guoqiang Shi Ye Sun lev N.Kantorovich Flemming Besenbacher Miao Yu Condensed Matter Science and Technology Institute School of Instrumentation Science and Engineerinz Harbin Institute of TechnologryHarbin 150001China State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical EngineeringHarbin Institute oj TechnologyHarbin 150001China Department of Physics Kings College LondonLondon WC2R 2LSUK Interdisciplinary Nanoscience Center Aarhus UniversityAarhus 8000Denmark

Molecular recognition between nucleobases plays a crucial role in all kinds of biological ***,real-space investigation of the recognition capability of nucleobases in the presence of interfering compounds remains ***,based on the combination of scanning tunneling microscopy imaging and density functional theory modeling,we report the impact of the presence of melamine(M)on the formation and chirality of guanine(g)-tetrads on Au(111).Although M can interact with g by double hydrogen bonding,the Hoogsteen base pairing of g is not compromised,forming identical individual g-tetrads as would have happened without the presence of M.g-tetrads coexist with M on the surface not only in separate domains,but also within the mixture network of g-tetrads and *** the adsorption orientation of g-tetrads in the mixture network diversifies into two distinct angles,all g-tetrads in the network keep the same chirality,emphasizing the high preference of homochirality in such biochemical systems.

关键词： molecular recognition guanine-tetrad base pairing homcxjhirality biochemical synthesis

Peering into Past: What Happened to the Moon 3.6 Billion Years Ago?

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Positioning 2018年第3期9卷 73-78页

作者： Diamar Pechersky lev Eppelbaum Schmidt Institute of Earth Physics Russian Academy of Sciences Moscow Russia Department of geosciences Faculty of Exact Sciences Tel Aviv University Tel Aviv Israel

Invaluable data can at times be overlooked or not fully exploited when first collected. Striking conclusions can often be drawn on the basis of a specific analysis many years later. The Apollo 11 - 17 missions (1961-1972) provided detailed information on lunar basalts which make it possible to measure the iron grains in basalts from microphotographs of thin sections. Analysis of the average size of these grains (D) differed as a function of the age of these basalts dated between 3.9 and 3.4 billion years ago, revealed that D increased 1.5 fold, therefore the gravity acceleration g decreased 1.5 fold. The intriguing conclusion can only be that the size of the Moon increased, its mass decreased, or both these factors have changed.

关键词： Apollo 11 - 17 Missions Lunar Basalts “Iron Particles” Moon Parameters

Shape control over microwave hydrothermally grown Y2O3:Eu by europium concentration adjustment

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Journal of Rare Earths 2019年第11期37卷 1206-1212页

作者： Jaroslaw Kaszewski Julita Rosowska Bartlomiej S.Witkowski Lukasz Wachnicki Karolina Wenelska Ewa Mijowska lev-Ivan Bulyk Damian Wlodarczyk Andrzej Suchocki Boleslaw Kozankiewicz Marek godlewski Institute of Physics Polish Academy of SciencesWarsawLotnikow 32/4602-668Poland Institute of Chemical and Environment Engineering West Pomeranian University of TechnologySzczecinPulaskiego 1070-322SzczecinPoland

Two-step synthesis of Y2O3:Eu nanostructures was *** includes microwave driven hydrothermal and calcination *** route results in crystallization of Y4O(OH)g(NO3):Eu crystals initially,then Y2O3:Eu crystals after *** Eu contents in relation to overall cation quantity were set to 2 mol%,10 mol%and 20 mol%.Varying europium concentrations influence habit of obtained Y4O(OH)g(NO3):Eu crystals from needle-like to plate-like and as a result,also shapes of final Y2O3:Eu ***,certain amount of Eu2+ions was detected in as-grown material using laser spectroscopy and decay kinetics *** material was calcined at 1200°C in the air,which results in oxidation of Eu2+ions and crystallization of small number of cubic EU2 O3 *** of obtained materials was performed using XRD,SEM,TEM,EDX,CL,Raman and photoluminescence spectroscopy.

关键词： Yttrium oxide Europium Luminescence Hydrothermal Microwave Rare earths