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Sheared peridotite xenolith from the *** kimberlite pipe,Arkhangelsk Diamond Province,Russia:Texture,composition,and origin

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Geoscience Frontiers 2017年第4期8卷 653-669页

作者： Alexey Vladimirovich Kargin Lyudmila Vyacheslavovna Sazonova Anna Andreevna Nosova Vladimir Anatolievich Pervov Elena Vladimirovna Minevrina Vladimir Anatolievich Khvostikov Zhanna Petrovna Burmii institute of Geology of Ore Deposits PetrographyMineralogyand GeochemistryRussian Academy of Sciences(IGEM RAS) Lomonosov Moscow State University Departamento de Geologia.Sociedade Mineira de Catoca institute of Technological problems of Microelectronics and Ultrapure Materials Russian Academy of Sciences

The petrography and mineral composition of a mantle-derived garnet peridotite xenolith from the *** kimberlite pipe（Arkhangelsk Diamond Province,Russia） was *** on petrographic characteristics,the peridotite xenolith reflects a sheared *** sheared peridotite experienced a complex evolution with formation of three main mineral assemblages：（1） a relict harzburgite assemblage consist of olivine and orthopyroxene porphyroclasts and cores of garnet grains（Gar1） with sinusoidal rare earth elements（REE） chondrite C1 normalized patterns;（2） a neoblastic olivine and orthopyroxene assemblage;（3） the last assemblage associated with the formation of clinopyroxene and garnet marginal zones（Gar2）.Major and trace element compositions of olivine,orthopyroxene,clinopyroxene and garnet indicate that both the neoblast and clinopyroxene-Gar2 mineral assemblages were in equilibrium with a high Fe-Ti carbonate-silicate metasomatic *** nature of the metasomatic agent was estimated based on high field strength elements（HFSE） composition of olivine neoblasts,the garnet-clinopyroxene equilibrium condition and calculated by REE-composition of Gar2 and *** these evidences indicate that the agent was a high temperature carbonate-silicate melt that is geochemically linked to the formation of the protokimberlite melt.

关键词： Sheared peridotite Mantle metasomatism Kimberlite Olivine Garnet Clinopyroxene

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3D model of Svecofennian Accretionary Orogen and Karelia Craton based on geology,reflection seismics,magnetotellurics and density modelling:Geodynamic speculations

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Geoscience Frontiers 2020年第3期11卷 999-1023页

作者： Michael V.Mints Victor N.Glaznev Olga M.Muravina Elena Yu Sokolova Geological institute RASMoscowRussia Voronezh State University VoronezhRussia Schmidt institute of Physics of the Earth RASMoscowRussia All-Russian Research Geological Oil institute MoscowRussia

A 3D model of deep crustal structure of the Archaean Karelia Craton and late Palaeoproterozoic Svecofennian Accretionary Orogen including the boundary zone is *** model is based on the combination of data from geological mapping and reflection seismic studies,along profiles 1-EU,4 B,FIRE-1-2 a-2 and FIRE-3-3 a,and uses results of magnetotelluric soundings in southern Finland and northern Karelia.A seismogeological model of the crust and crust-mantle boundary is compared with a model of subhorizontal velocity-density layering of the *** TTG-type crust of the Palaeoarchaean and Mesoarchaean microcontinents within the Karelia Craton and the Belomorian Province are separated by gently dipping greenstone belts,at least some of which are *** structure of the crust was determined mainly by Palaeoproterozoic tectonism in the intracontinental settings modified by a strong collisional compression at the end of the *** insights into structure,origin and evolution of the Svecofennian Orogen are *** accretionary complex is characterized by inclined tectonic layering:the tectonic sheets,~15 km thick,are composed of volcanic-sedimentary rocks,including electro-conductive graphite-bearing sedimentary rocks,and electro-resistive granitoids,which plunge monotonously and consecutively *** reaching the level of the lower crust,the tectonic sheets of the accretionary complex lose their distinct *** the seismic reflection pattern they are replaced by a uniform acoustically translucent medium,where separate sheets can only be traced *** crust-mantle boundary bears a diffuse character:the transition from crust to mantle is recorded by the disappearance of the vaguely drawn boundaries of the tectonic sheets and in the gradual transition of acoustically homogeneous and translucent lower crust into transparent *** the effect of endogenic heat flow,the accretionary complex underwent high-temperatu

关键词： Reflection seismics Magnetotellurics Svecofennian accretionary Orogen Svecofennian Ocean 3D crustal model Velocity-density layering

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Confining Potential and Mass of Elementary Particles

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Journal of Modern Physics 2016年第1期7卷 129-133页

作者： Lev I. Buravov institute of problems of Chemical Physics ras Chernogolovka Russia

In this paper we consider a model in which the masses of elementary particles are formed and stabilized thanks to confining potential, which is caused by recoil momentum at emission of specific virtual bosons by particle itself. The calculation of this confining potential Ф(R) is carried out. It is shown that Ф(R) may be in the form const or const depending on continuous or discrete nature of the spectrum of emitted bosons.

关键词： Confining Potential Origin of Mass of Particle Stabilizing of Particle Mass Virtual Bosons Spherical Bosonic Wave Origin of Neutrino Masses Neutrino Mass Formula Calculation of Neutrino Masses

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Interaction of edge dislocations with voids in tungsten

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Tungsten 2024年第3期6卷 633-646页

作者： Arseny Kazakov Rita I.Babicheva Aleksandr Zinovev Dmitry Terentyev Kun Zhou Elena A.Korznikova Sergey V.Dmitriev Research Laboratory for Metals and Alloys under Extreme Impacts Ufa University of Science and TechnologyUfa 450008Russia institute for Metals Superplasticity problems of ras Ufa 450001Russia School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore institute for Nuclear Energy Technology Belgian Nuclear Research Center2400 MolBelgium Technological Machines and Equipment Department Ufa State Petroleum Technological UniversityUfa 450064Russia institute of Mechanical Science problems of ras Saint Petersburg 199178Russia institute of Molecule and Crystal Physics UFRC of Russian Academy of SciencesUfa 450075Russia

Tungsten is widely used as a material capable of withstanding extreme operating conditions and is one of the candidates for use in fusion and GenerationⅣfission *** modelling implemented to solve various material science problems is an indispensable approach for improving material *** work analyzes the interaction of an edge dislocation with a void in single-crystal tungsten with the help of molecular dynamics *** different approaches for studying the dynamics of dislocations in tungsten that differ in boundary conditions are *** interactions of the dislocation and void at different temperatures are investigated,and based on the obtained stress-strain curves,the dislocation obstacle strength for voids having various diameters is *** is shown that when applied to a crystal with small voids,the model with the fixed boundary conditions returns incorrect ***,the influence of the cell size for the model with periodic boundary conditions is analyzed,and the case of a non-central interaction of a dislocation with a void is *** obtained results improve our understanding of the mechanical response of irradiated materials.

关键词： Tungsten Molecular dynamics method Dislocations Voids Boundary conditions

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Quantitative tracking of trans-synaptic nose-to-brain transport of nanoparticles and its modulation by odor,aging,and Parkinson’s disease

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Nano Research 2023年第5期16卷 7119-7133页

作者： Alexander V.Romashchenko Dmitrii V.Petrovskii Sergey Yu.Trotsky Ksenia N.Morozova Nina B.Illarionova Maria V.Zhukova Elena V.Kiseleva Marina B.Sharapova Daniil S.Zuev Konstantin E.Kuper Sergey Yu.Taskaev Anna I.Kasatova Dmitrii A.Kasatov Olga I.Solovieva Ivan A.Razumov Ludmila A.Gerlinskaya Mikhail P.Moshkin Yuri M.Moshkin The Federal Research Center institute of Cytology and Genetics SB RASAcademician Lavrentiev Avenue10Novosibirsk 630090Russia International tomography center Institutskaya st.3ANovosibirsk 630090Russia G.K.Boreskov institute of Catalysis SB RASAcademician Lavrentiev Avenue5Novosibirsk 630090Russia The Federal Research Center Budker institute of Nuclear Physics SB RASAcademician Lavrentiev Avenue11Novosibirsk 630090Russia institute of Computational Technologies Academician M.A.Lavrentiev avenue6Novosibirsk 630090Russia institute of Gene Biology Russian Academy of SciencesMoscow 117334Russia institute of Molecular and Cellular Biology SB RASAcad.Lavrentiev Ave8/2Novosibirsk 630090Russia Federal Research Centre of biological Systems and Agrotechnologies RASst.January 929Orenburg 460000Russia

Nanoparticles(NPs)can be transported via the nose-to-brain(N_(2)B)***,quantitative data on their spatiotemporal dynamics and regulation of the N_(2)B transport are largely *** surveyed metal oxide/hydroxide NPs as magnetic resonance imaging(MRI)contrasts for quantitative N_(2)B *** containing divalent transition metals were the only ones capable of N_(2)B *** T1-weighted(T1W)MRI,we showed that Mn_(3)O_(4)-NPs were readily engulfed by olfactory receptor neurons(ORNs)without disrupting olfactory sensing,we mapped their N_(2)B *** neurons,the Mn_(3)O_(4)-NPs were localized to the cytosol,mitochondria,vesicles,moved at mixed fast and slow axonal transport velocities intraand extra-vesicularly through *** NPs’axonal transport is dependent on neuronal activity and microtubule *** Mn_(3)O_(4)-NPs were trans-synaptically transmitted through at least four synapses across the olfactory ***-synaptic transmission of the NPs was dependent on N-type Ca^(2+)channels and NMDA receptors but blocked by GABAB receptor activation.A five-parameter Weibull signal increase/decrease model fitted to the T1W MRI data allowed for estimating kinetic parameters of Mn_(3)O_(4)-NP accumulation/*** and relative accumulation rates,but not elimination,correlated negatively with the number of synapses from ORNs,indicating a coupling of the NPs’N_(2)B transport with spontaneous neuronal ***,olfactory stimuli(2,5-dimethylpyrazine and acetophenone)significantly modulated and rerouted the Mn_(3)O_(4)-NP N_(2)B transport odor ***,the NPs’trans-synaptic transmission was impaired by aging and the onset of Parkinson’s *** data suggest new approaches to diagnostics,functional neuroimaging,controlling N_(2)B drug delivery.

关键词： Mn_(3)O_(4)nanoparticles magnetic resonance imaging(MRI) nose-to-brain transport trans-synaptic transmission olfactory stimulation

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Contrasting habitat use and conservation status of Chinese-wintering and other Eurasian Greater White-fronted Goose(Anser albifrons)populations

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Avian Research 2021年第4期12卷 600-611页

作者： Xueqin Deng Qingshan Zhao Junjian Zhang Andrea Kölzsch Diana Solovyeva Inga Bysykatova-Harmey Zhenggang Xu Helmut Kruckenberg Lei Cao Anthony David Fox State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 101408China Department of Migration Max Planck Institute of Animal BehaviorRadolfzellGermany institute for Wetlands and Waterbird Research E.V.(IWWR) Verden(Aller)Germany institute of biological problems of the north MagadanRussia institute of biological problems of Cryolitozone YakutskRussia Key Laboratory of National Forestry and Grassland Administration On Manage-ment of Western Forest Bio-Disaster College of ForestryNorthwest A&F Uni-versityYangling 712100China Department of Ecoscience Aarhus UniversityAarhusDenmark

Background:GPS/GSM tracking data were used to contrast use of(i)habitats and(ii)protected areas between three Arctic-nesting Greater White-fronted Geese(Anser albifrons,GWFG)populations throughout the annual *** wished to demonstrate that the East Asian Continental Population(which winters on natural wetlands in the Chinese Yangtze River floodplain and is currently declining)avoids using farmland at multiple wintering *** also gath-ered tracking evidence to support general observations from two increasing population of GWFG,the north Sea-Baltic(which winters in Europe)and the West Pacific(which winter in Korea and Japan)winter mostly within farmland landscapes,using wetlands only for safe night ***:We tracked 156 GWFG throughout their annual cycle using GPS/GSM transmitters from these three popu-lations to determine migration routes and stopover staging *** used Brownian Bridge Movement Models to generate summer,winter and migration stopover home ranges which we then overlaid in GIS with land cover and protected area boundary at national level to determine habitat use and degree of protection from nature conserva-tion designated ***:Data confirmed that 73%of European wintering GWFG homes ranges were from within farmland,com-pared to 59%in Japan and Korea,but just 5%in China,confirming the heavy winter use of agricultural landscapes by GWFG away from China,and avoidance of farmland at multiple sites within the Yangtze River *** same GWFG used farmland in northeast China in spring and autumn,confirming their experience of exploiting such habi-tats at other stages of their annual *** wintering birds showed the greatest overlap with protected areas of all three populations,showing current levels of site safeguard are failing to protect this ***:Results confirm the need for strategic planning to protect the East Asian Continental GWFG *** the site protection network in place to p

关键词： Farmland feeding Habitat use Migration National nature reserve Protected areas Staging areas

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Soil Organic Carbon in a Changing World

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Pedosphere 2017年第5期27卷 789-791页

作者： JIA Zhongjun Yakov KUZYAKOV David MYROLD James TIEDJE State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) Agro-Technology institute RUDN UniversityMoscow 115419(Russia) institute of Physicochemical and biological problems in Soil Science RASPushchino 142290(Russia) Department of Crop and Soil Science Oregon State UniversityCorvallis OR 97881(USA) Center for Microbial Ecology Michigan State UniversityEast Lansing MI 48824-1325(USA)

Soil contains more than three times as much carbon (C) as either the atmosphere or terrestrial *** organic C (SOC) is essentially derived from inputs of plant and animal residues,which are processed by the microbiota (bacteria,archaea,protists,fungi and viruses) that dominates SOC transformation and turnover in complex terrestrial environments.A

关键词：土壤有机碳世界陆地植被生物处理古细菌碳含量 SOC 微生物

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3,6-bis(2,2,2-trinitroethylnitramino)-1,2,4,*** and energy abilities as a component of solid composite propellants

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Defence Technology（防务技术） 2022年第7期18卷 1148-1155页

作者： Anatoly G.Korepin Natalia M.Glushakova David B.Lempert Anatoly I.Kazakov Gennady V.Shilov Denis V.Korchagin Vadim M.Volokhov Elena S.Amosova Sergey M.Aldoshin institute of problems of Chemical Physics Ac.Semenov Avenue 1Chernogolovka142432Russian Federation

The work addresses to the study of the molecular and crystal structure and properties of a new energyintensive compound 3,6-bis(2,2,2-trinitroethylnitramino)-1,2,4,5-tetrazine(NBTAT),first obtained by the authors in *** compound crystallizes in the monoclinic system,space group P2(1)/n,density at room temperature 1.939 g/cm^(3).The energies of crystal packing and pairwise intermolecular interactions in NBTAT and its unnitrated analogue BTAT were calculated,and their comparative analysis was carried *** enthalpy of formation of NBTAT molecules was calculated by quantum-chemical methods using Gaussian 09,and the enthalpy of formation of NBTAT in the solid phase(618 kJ/mol)was *** energy capabilities of NBTAT as an oxidizer of solid composite propellants are *** is shown that in metal-free compositions NBTAT is significantly superior to ammonium perchlorate(AP),dinitramide ammonium salt(ADN),HMX,BTAT at all stages of rocket systems,and is comparable to the superdense CL-20 yielding to the latter at the lower stages and slightly winning at the upper stages.

关键词： Nitrogen heterocycles Quantum chemistry Enthalpy of formation 3,6-bis(2,2,2-trinitroethylnitramino)-1,2,4,5-tetrazine Crystal structure Energetic ability

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Influence of structural factors on the strength properties of aluminum alloys under shock wave loading

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Matter and Radiation at Extremes 2018年第4期3卷 145-158页

作者： S.V.Razorenov institute of problems of Chemical Physics ras ChernogolovkaRussia National Research Tomsk State University TomskRussia

The results of measurements of the strength characteristics-Hugoniot elastic limit and spall strength of aluminum and aluminum alloys in different structural states under shock wave loading are ***-crystals and polycrystalline technical grade aluminumА1013 and aluminum alloysА2024,АА6063Т6,А1421,A7,А7075,А3003,A5083,АА1070 in the initial coarse-grained state and ultrafine-grained or nanocrystalline structural state were *** refinement of the grain structure was carried out by different methods of severe plastic deformation such as Equal Chanel Angular Pressing,Dynamic Channel Angular Pressing,High-Pressure Torsion and Accumulative *** strength characteristics of shock-loaded samples in different structural states were obtained from the analysis of the evolution of the free surface velocity histories recorded by means of laser Doppler velocimeter *** strain rates before spall fracture of the samples were in the range of 10^(4)-10^(5 )s^(-1),the maximum pressure of shock compression did not exceed 7 *** results of these studies clearly demonstrate the influence of structural factors on the resistance to high-rate deformation and dynamic fracture,and it is much less than under the static and quasi-static loading.

关键词： Aluminum alloys Shock wave loading Ultrafine-grained structure Dynamic strength properties

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Transformation Pathway of Carbonate Pedofeatures Based on Their Micromorhology and Carbon Isotope Data in the northern Caucasus Region,Russia

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Journal of Mountain Science 2009年第2期6卷 139-146页

作者： Khokhlova O.S. Kouznetsova A.M. Khokhlov A. A. institute of Physicochemical and biological problems of Soil Science Russian Academy of Sciences ul.Institutskaya 2 Pushchino Moscow region 142290 Russia Laboratory of Electron Microscopy Biological Faculty Moscow State UniversityMoscow 119899 Russia institute of Cell Biophysics Russian Academy of Sciences ul.Institutskaya 3 Pushchino Moscow region 142290 Russia

Carbonate pedofeatures (CPs) in a chronosequence of paleosols buried under kurgans in the northern Caucasus region of Russia in a period from the end of the 4th to the middle of the 5th centuries AD (It seams that there is no time left) were studied by using a set of morphological and isotopic methods. The CPs in chernozem-type soils of Russia are usually represented by crystallomorphic calcite whereas the non-segregated carbonates occurred at the same horizons-by collomorphic one. Those two morphotypes of calcite have the differences in elemental composition and isotopic composition of carbon and, hence, should have different origins-from true and colloidal solutions, respectively. The same differences including radiocarbon age have been revealed for pseudomycelium of the ABca horizon of the youngest paleosols as compared with the same CPs of other paleosols in the chronosequence studied. Our assumption is that it was succeeded in finding that the pseudomycelium right away after its precipitation from a colloidal solution migrated from the lower soil horizons to the surface horizons during the periods of climatic aridization. After a short time interval (not more than 25-50 years) collomorphic calcite in the pseudomicelium of the yongest paleosols mentioned above will likely become by "usual" acicular calcite.

关键词： Carbonate pedofeature chernozems kurgans holocene paleosol set of morphological andisotopic method

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