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Modeling of cold-temperate tree Pinus koraiensis (Pinaceae) distribution in the Asia-Pacific region: Climate change impact

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Forest Ecosystems 2022年第2期9卷 160-167页

作者： Tatyana Y.Petrenko Kirill A.Korznikov dmitry E.Kislov Nadezhda G.Belyaeva Pavel v.Krestov Botanical Garden-Institute FEB RAS Makovskogo St.142Vladivostok690024Russia Institute of Geography RAS Staromonetniy 24-4Moscow119017Russia

Background:Pinus koraiensis Siebold&Zucc.(Korean pine)is a key species of the mixed cold temperate forests of Northeast *** climate change can significantly worsen the quality of *** habitats and therefore lead to a large-scale structural and functional transformation of the East Asian mixed *** built a species distribution model(SDM)for *** using the random forest classifier–a versatile machine learning al-gorithm,to discover overlap areas of potential species occurrence in the climate condition of the Last Glacial Maximum(~21,000 year before present)and in the projected future climates(2070 year),from which possible permanent refugia for *** were ***:Using the random forest supervised learning algorithm,we developed models of the modern distribution of *** in accordance with the five selected bioclimatic variables(Kira’s warmth and coldness indices,the index of continentality,the rain precipitation index,and the snow precipitation index).In addition to current climatic conditions,we performed this analysis for the climate of the Last Glacial Maximum and for the future projected climate(2070)under scenarios RCP2.6 and *** the predictors,the rain index appears to be the most *** land area estimates with high suitability for *** was 303,785 km 2 under current climatic conditions,586,499 km 2 for the Last Glacial Maximum,and 337,573 km^(2) for the future(2070)period under the RCP2.6 scenario,and 397,764 km^(2) under the RCP8.5 ***:Most of the potential range of *** during the Last Glacial Maximum was located outside the current distribution area of the *** climatically suitable *** habitats will likely disappear in the western part of its modern *** the southern part of the range,which includes glacial refugia,the areas of continuous distribution of the *** populations since the end of the Pleistocene are expected to

关键词： Climate change Bioclimatic modeling Species distribution model Korean pine Northeast Asia

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On the Possibilities of using Some Modern Three-dimensional Modeling Means in Forensic Examination

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Journal of Forensic Science and Medicine 2022年第1期8卷 17-23页

作者： dmitry S Afonin Iryna v Hora valerii A Kolesnyk Inna I Popovych Iryna v Kuchynska Department of Administrative Activity of Police Odesa State University of Internal AffairsOdesa Scientific Center National Academy of the Security Service of Ukraine Department of Criminal Law and Procedure Uzhhorod National UniversityUzhhorod Center for Forensic and Special Examinations The Ukrainian Scientific and Research Institute of Special Equipment and Forensic Expertise of the Security Service of UlaaineKyivUkraine

Background:The paper examines the state and prospects of using 3D modeling in solving identification,classification,diagnostic and situational tasks of forensic *** and Objectives:The aim of this study is to analyze the world expert practice of using scientific and technical means of three-dimensional modeling in solving problems of forensic examination,using the example of our country,the leading countries of Europe,as well as the United *** and Methods:The empirical basis of the study is the results of the systematization of scientific and technical means for 3D modeling in solving identification,classification,diagnostic and situational problems of forensic examinations used in the expert practice of Ukraine,the United Kingdom,France,Germany,and the ***:The systematization of modem scientific and technical means for 3D modeling,used in solving identification,classification,diagnostic and situational tasks of forensic examination,has been carried *** analyzed and identified 3D modeling software that most fully meets the requirements of effective forensic expert *** features of the use of effective 3D modeling mean for solving identification,classification,diagnostic and situational tasks of forensic examination,namely the software systems"ToolScan"and"TrasoScan",and the SketchUp program have been ***:The introduction of the SketchUp 8 software into forensic expert activities will increase the effectiveness of the modeling method in forensic examinations,which,in turn,will have an impact on the effectiveness of expert conclusions,increase their evidentiary value and,as a result,contribute to the entire process of a criminal investigation.

关键词： Classification tasks diagnostic tasks forensic practice identification tasks photogrammetric modeling simulation modeling three-dimensional model

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Causal analysis of competing atomistic mechanisms in ferroelectric materials from high-resolution scanning transmission electron microscopy data

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npj Computational Materials 2020年第1期6卷 570-578页

作者： Maxim Ziatdinov Christopher T.Nelson Xiaohang Zhang Rama K.vasudevan Eugene Eliseev Anna N.Morozovska Ichiro Takeuchi Sergei v.kalinin The Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37831USA Computational Sciences and Engineering Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Department of Materials Science and Engineering University of MarylandCollege ParkMD 20742USA Institute for Problems of Materials Science National Academy of Sciences of UkraineKrjijanovskogo 3Kyiv 03142Ukraine Institute of Physics National Academy of Sciences of Ukraine46pr.NaukyKyiv 03028Ukraine

Machine learning has emerged as a powerful tool for the analysis of mesoscopic and atomically resolved images and spectroscopy in electron and scanning probe microscopy,with the applications ranging from feature extraction to information compression and elucidation of relevant order parameters to inversion of imaging data to reconstruct structural ***,the fundamental limitation of machine learning methods is their correlative nature,leading to extreme susceptibility to confounding ***,we implement the workflow for causal analysis of structural scanning transmission electron microscopy(STEM)data and explore the interplay between physical and chemical effects in a ferroelectric perovskite across the ferroelectric–antiferroelectric phase transitions.

关键词： ferroelectric analysis founding

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Manifold learning of four-dimensional scanning transmission electron microscopy

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npj Computational Materials 2019年第1期5卷 1097-1104页

作者： Xin Li Ondrej E.Dyck Mark P.Oxley Andrew R.Lupini Leland McInnes John Healy Stephen Jesse Sergei v.kalinin Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37831USA Institute for Functional Imaging of Materials Oak Ridge National LaboratoryOak RidgeTN 37831USA Tutte Institute for Mathematics and Computing OttawaCanada

Four-dimensional scanning transmission electron microscopy(4D-STEM)of local atomic diffraction patterns is emerging as a powerful technique for probing intricate details of atomic structure and atomic electric ***,efficient processing and interpretation of large volumes of data remain challenging,especially for two-dimensional or light materials because the diffraction signal recorded on the pixelated arrays is *** we employ data-driven manifold leaning approaches for straightforward visualization and exploration analysis of 4D-STEM datasets,distilling real-space neighboring effects on atomically resolved deflection patterns from single-layer graphene,with single dopant atoms,as recorded on a pixelated *** extracted patterns relate to both individual atom sites and sublattice structures,effectively discriminating single dopant anomalies via multimode *** believe manifold learning analysis will accelerate physics discoveries coupled between data-rich imaging mechanisms and materials such as ferroelectric,topological spin,and van der Waals heterostructures.

关键词： manifold straight details

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Operating limits and features of direct air capture on K_(2)CO_(3)/ZrO_(2) composite sorbent

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Chinese Journal of Chemical Engineering 2022年第6期35卷 11-20页

作者： vladimir S.Derevschikov Janna v.veselovskaya Anton S.Shalygin dmitry A.Yatsenko Andrey Z.Sheshkovas Oleg N.Martyanov Boreskov Institute of Catalysis SB RAS Akademika Lavrentieva Av.5630090 NovosibirskRussia Novosibirsk State University Pirogova Str.1630090 NovosibirskRussia

Potassium carbonate-based sorbents are prospective materials for direct air capture(DAC).In the present study,we examined and revealed the influence of the temperature swing adsorption(TSA)cycle conditions on the CO_(2) sorption properties of a novel aerogel-based K_(2)CO_(3)/ZrO_(2) sorbent in a DAC *** was shown that the humidity and temperature drastically affect the sorption dynamic and sorption capacity of the *** a temperature at the sorption stage was 29℃ and a water vapor pressure P_(H2O) in the feed air was 5.2 mbar(1 bar=105 Pa),the composite material demonstrated a stable CO_(2) sorption capacity of 3.4%(mass).An increase in sorption temperature leads to a continuous decrease in the CO_(2) absorption capacity reaching a value of 0.7%(mass)at T=80℃.The material showed the retention of a stable CO_(2) sorption capacity for many cycles at each temperature in the *** PH2O in the inlet air from 5.2 to 6.8 mbar leads to instability of CO_(2) sorption capacity which decreases in the course of 3 consecutive TSA cycles from 1.7%to 0.8%(mass)at T=29℃.A further increase in air humidity only facilitates the deterioration of the CO_(2) sorption capacity of the material.A possible explanation for this phenomenon could be the filling of the porous system of the sorbent with solid reaction products and an aqueous solution of potassium salts,which leads to a significant slowdown in the CO_(2) diffusion in the composite sorbent *** investigate the regeneration step of the TSA cycle in situ,the macro ATRFTIR(attenuated total reflection Fourier-transform infrared)spectroscopic imaging was applied for the first *** was shown that the migration of carbonate-containing species over the surface of sorbent occurs during the thermal regeneration stage of the TSA *** movement of the active component in the porous matrix of the sorbent can affect the sorption characteristics of the composite *** revealed features make it possible

关键词： Zirconia aerogel Potassium carbonate Carbon dioxide Direct air capture Fourier-transform infrared spectroscopic imaging

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Phylogenetic relationship and variation of alarm call traits of populations of red-cheeked ground squirrels(Spermophilus erythrogenys sensu lato)suggest taxonomic delineation

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Integrative Zoology 2019年第4期14卷 341-353页

作者： vera A.MATROSOvA Anastasia D.IvANOvA Elena v.vOLODINA Ilya A.vOLODIN dmitry Yu.ALEXANDROv Olga v.SIBIRYAKOvA Oleg A.ERMAKOv Engelhardt Institute of Molecular Biology RASMoscowRussia Lomonosov Moscow State University MoscowRussia Moscow Zoo MoscowRussia Severtsov Institute of Ecology and Evolution RASMoscowRussia Department of Zoology and Ecology Penza State UniversityPenzaRussia

Distribution area and taxonomic borders within the species complex Spermophilus erythrogenys sensu lato remain *** evidence suggests that red-cheeked ground squirrels of Southeast Kazakhstan are remarkably different in terms of the acoustic structure of their alarm calls from the red-cheeked ground squirrels of the Kurgan region in *** this study,we analyzed the differences in the acoustic structure of the alarm call and mitochondrial DNA(complete control region,1005-1006 bp and complete cytochrome b gene,1140 bp)in 3 populations of red-cheeked ground squirrels(Tara,Altyn-Emel and Balkhash),all located within areas isolated by geographical barriers in Southeast *** found that the alarm call variables were similar between the 3 study populations and differed by the maximum fundamental frequency(8.46±0.75 kHz)from the values(5.62±0.06 kHz)reported for the red-cheeked ground squirrels from the Kurgan region of Rus*** in mtDNA control region was only 3%and variation in cytochrome b gene was only 2.5%.Phylogenetic trees based on cytochrome b gene polymorphism of 44 individuals from the study area and adjacent territories indicated 3 clades with high(98-100%)bootstrap support:“intermedius,”“brevicauda”and“iliensis”).We conclude that the 3 study populations in Southeast Kazakhstan belong to the clade intermedius and suggest a taxonomical revision of the species complex Spermophilus erythrogenys sensu lato,including analyses of nuclear DNA and alarm calls for populations of the brevicauda and iliensis clades.

关键词： alarm call control region cytochrome b mitochondrial DNA vocal communication

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Deep Bayesian local crystallography

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npj Computational Materials 2021年第1期7卷 1649-1660页

作者： Sergei v.kalinin Mark P.Oxley Mani valleti Junjie Zhang Raphael P.Hermann Hong Zheng Wenrui Zhang Gyula Eres Rama K.vasudevan Maxim Ziatdinov Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37831USA Bredesen Center for Interdisciplinary Research The University of TennesseeKnoxvilleTN 37996USA Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Materials Science Division Argonne National LaboratoryArgonneIL 60439USA Computational Sciences and Engineering Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Present address:State Key Laboratory of Crystal Materials&Institute of Crystal Materials Shandong UniversityJinanShandong 250100China

The advent of high-resolution electron and scanning probe microscopy imaging has opened the floodgates for acquiring atomically resolved images of bulk materials,2D materials,and *** plethora of data contains an immense volume of information on materials structures,structural distortions,and physical *** this knowledge regarding local physical phenomena necessitates the development of the mathematical frameworks for extraction of relevant ***,the analysis of atomically resolved images is often based on the adaptation of concepts from macroscopic physics,notably translational and point group symmetries and symmetry lowering ***,we explore the bottom-up definition of structural units and symmetry in atomically resolved data using a Bayesian *** demonstrate the need for a Bayesian definition of symmetry using a simple toy model and demonstrate how this definition can be extended to the experimental data using deep learning networks in a Bayesian setting,namely rotationally invariant variational autoencoders.

关键词： symmetry local resolved

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Electrolyte materials for protonic ceramic electrochemical cells:Main limitations and potential solutions

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Materials Reports(Energy) 2022年第4期2卷 19-35页

作者： Anna v.Kasyanova Inna A.Zvonareva Natalia A.Tarasova Lei Bi dmitry A.Medvedev Zongping Shao Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes Institute of High Temperature Electrochemistry620990YekaterinburgRussia Hydrogen Energy Laboratory Ural Federal University620002YekaterinburgRussia School of Resource and Environment and Safety Engineering University of South ChinaHengyangHunan421001China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing210009China WA School of Mines:Minerals Energy and Chemical Engineering(WASM-MECE)Curtin UniversityPerthWA6845Australia

Solid oxide fuel cells(SOFCs)and electrolysis cells(SOECs)are promising energy conversion devices,on whose basis green hydrogen energy technologies can be developed to support the transition to a carbon-free *** compared with oxygen-conducting cells,the operational temperatures of protonic ceramic fuel cells(PCFCs)and electrolysis cells(PCECs)can be reduced by several hundreds of degrees(down to low-and intermediatetemperature ranges of 400–700C)while maintaining high performance and *** is due to the distinctive characteristics of charge carriers for proton-conducting ***,despite achieving outstanding lab-scale performance,the prospects for industrial scaling of PCFCs and PCECs remain hazy,at least in the near future,in contrast to commercially available SOFCs and *** this review,we reveal the reasons for the delayed technological development,which need to be addressed in order to transfer fundamental findings into industrial *** solutions to the identified problems are also highlighted.

关键词： Protonic ceramic fuel cells(PCFCs) Protonic ceramic electrolysis cells(PCECs) Proton transport Electrochemistry Hydrogen energy

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Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells

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Chinese Journal of Polymer Science 2014年第7期32卷 844-853页

作者： Mukhamed L.Keshtov dmitry v.Marochkin Ying-ying Fu Zhi-yuan Xie 耿延候 vitaly S.Kochurov Alexei R.Khokhlov A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences Lomonosov Moscow State University Faculty of Physics 119991

Four new low-band-gap alternating copolymers （P-1, P-2, P-3 and P-4） based on electron-rich benzodithiophene and newly developed electron-deficient units, thienopyrazine or dithiadiazatrindene derivatives, were synthesized by Stille polycondensation. All polymers exhibit good solubility in common organic solvents and a broad absorption band in the visible to near-infrared regions. The film optical band gaps of the polymers are in the range of 1.28-2.07 ev and the highest occupied molecular orbital （HOMO） energy levels are in the range of-4.99 ev to -5.28 ev. Bulk heterojunction polymer solar cells （PSCs） of the polymers were fabricated with phenyl-C61-butyric acid methyl ester （PC61BM） as acceptor material, and a power conversion efficiency of 0.80% was realized with P-1 as donor material.

关键词： Low band gap Conjugated polymers Electron-deficient aromatics Polymer solar cells.

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Continuous wafer-scale graphene on cubic-SiC（O01）

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Nano Research 2013年第8期6卷 562-570页

作者： Alexander N. Chaika Olga v. Molodtsova Alexei A. Zakharov dmitry Marchenko Jaime Sanchez-Barrig Andrei varykhalov Igor v. Shvets victor Yu. Aristov Institute of Solid State Physics RAS Chemogolovka Moscow District 142432 Russia Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) School of Physics Trinity College Dublin 2 Ireland HASYLAB at DESY D-22607 Hamburg Germany MAX-lab Lund University Box 118 22100 Lund Sweden Helmholtz-Zentrum Berlin für Materialien und Energie D- 12489 Berlin Germany

The atomic and electronic structure of graphene synthesized on commercially available cubic-SiC（001）/Si（001） wafers have been studied by low energy electron microscopy （LEEM）, scanning tunneling microscopy （STM）, low energy electron diffraction （LEED）, and angle resolved photoelectron spectroscopy （ARPES）. LEEM and STM data prove the wafer-scale continuity and uniform thickness of the graphene overlayer on SIC（001）. LEEM, STM and ARPES studies reveal that the graphene overlayer on SIC（001） consists of only a few monolayers with physical properties of quasi-freestanding graphene. Atomically resolved STM and micro-LEED data show that the top graphene layer consists of nanometer-sized domains with four different lattice orientations connected through the 〈110〉-directed boundaries. ARPES studies reveal the typical electron spectrum of graphene with the Dirac points close to the Fermi level. Thus, the use of technologically relevant SiC（001）/Si（001） wafers for graphene fabrication repre-sents a realistic way of bridging the gap between the outstanding properties of graphene and their applications.

关键词： graphene cubic-SiC(001) STM ARPES LEEM LEED

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