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GMOS Project: Long-term Air Mercury Observation and Research at Listvyanka Station, Siberia

1000年

作者： sergey n. Makarov.

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GMOS Project: Long-term Air Mercury Observation and Research...

Anodic Alumina Photonic Crystals as Refractive Index Sensors for Controlling the Composition of Liquid Mixtures

第二十一届大气污染防治技术研讨会

作者： Vladimir Ryzhova sergey Pogareva Vladimir Obolkinb Tamara Khodzherb sergey Sholupov n. Mashyanova St. Petersburg State University Limnological Institute Siberian Branch of RAS Lumex-marketing LLC

全球汞监测系统GMOS项目,综合运用陆地、船舶与航空观测手段来监测大气汞含量及其形态,结合在欧洲、非洲和极地等背景地区大气中汞的长期观测数据,探讨了大气中汞的区域及全球尺度的传输、沉降。本文介绍了GMOS项目针对西伯利亚Listvya... 详细信息

全球汞监测系统GMOS项目,综合运用陆地、船舶与航空观测手段来监测大气汞含量及其形态,结合在欧洲、非洲和极地等背景地区大气中汞的长期观测数据,探讨了大气中汞的区域及全球尺度的传输、沉降。本文介绍了GMOS项目针对西伯利亚Listvyanka区域进行的背景大气汞含量监控与研究。根据欧盟空气汞监测标准En 15852,通过采用高频塞曼技术直接在线实时对该区域背景空气汞进行长期监测,分析了背景大气的汞浓度值变化及相关的影响因素,包括SO2,nOx等,火电厂与汞含量变化的相关性,介绍了汞浓度变化的季节性变化和昼夜循环特征。连续42个月平均汞浓度是1.41 ng/m,温暖和寒冷季节每日平均浓度变化范围分别为1.2-1.7 ng/m,冬季汞含量排放较高,汞浓度变化显示夜间浓度较低,白天较高。背景空气汞含量受燃煤电厂排放影响较大。

关键词： GMOS 大气汞在线监控高频塞曼影响因素季节变化燃煤排放

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Photonic Sensors 2020年第2期10卷 147-154页

作者： Matin ASHUROV Vladimir GORELIK Kirill nAPOLSKII sergey KLIMOnSKY Faculty of Materials Science Lomonosov Moscow State UniversityLeninskie GoryMoscow 119991Russia P.n.Lebedev Physical Institute Russian Academy of SciencesMoscow 119991Russia Bauman Moscow State Technical University Moscow 105005Russia Department of Chemistry Lomonosov Moscow State UniversityLeninskie GoryMoscow 119991Russia

Photonic crystals based on anodic aluminum oxide films are examined as refractive index sensors for controlling the composition of water-alcohol liquid *** position of the reflectance maximum corresponding to the first photonic stop band is used as the analytical *** of a photonic crystal with water-ethanol and water-glycerol mixtures results in a redshift of the reflectance maximum.A fairly high refractive index sensitivity,sufficient to determine the composition of water-ethanol and water-glycerol mixtures with an accuracy of about 1 wt.%,is *** detailed dependencies of the analytical signal on the composition of mixtures are experimentally investigated and compared with numerical *** and limitations of the refractive index sensors based on anodic alumina photonic crystals are discussed.

关键词： Photonic crystal anodic alumina sensor refractive index

Assessment of Mercury in Diagnostic Biomaterials of Different Population Groups in Urban Areas of the Moscow Region

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Advances in Microbiology 2019年第7期9卷 571-580页

作者： Anatoly V. Gorbunov sergey M. Lyapunov Irina n. Ilchenko Marina V. Frontasyeva sergey S. Pavlov Geological Institute of Russian Academy of Sciences Moscow Russian I. M. Sechenov First Moscow State Medical University (Sechenov University) Moscow Russian Frank Laboratory of neutron Physics Joint Institute for Nuclear Research Dubna Russian

The results of a survey of different population groups in urban areas of the Moscow Region (industry workers, residents of areas with increased anthropogenic load of mercury and conditionally pristine areas, cohorts of pregnant women and children) to assess the contents of mercury in samples of various diagnostic biomaterials taken during the course of research are presented. Mercury concentrations in venous and umbilical cord blood, urine, hair, and nails were determined by means of instrumental neutron activation analysis and cold vapor atomic absorption spectrometry. Peculiarities of selection, transportation, storage, and preparation for analysis of samples of hair, nails, urine and umbilical venous blood are described. The determined concentrations of mercury in the studied diagnostic biomaterials are compared with normal and thresholds values. Although increased mercury concentrations were observed in some cases, no significant exposure of mercury was evident in general in the study towns. A positive correlation between the degree of consumption of seafood during pregnancy and a high content of mercury in the analyzed diagnostic biomaterials was shown.

关键词： Mercury Hair nails Urine Venous and Umbilical Cord Blood The Impact The Human

Thermodynamic potential and phase diagram for multiferroic bismuth ferrite(BiFeO_(3))

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npj Computational Materials 2017年第1期3卷 284-293页

作者： Dmitry V.Karpinsky Eugene A.Eliseev Fei Xue Maxim V.Silibin Alexandra Franz Maya D.Glinchuk Igor O.Troyanchuk sergey A.Gavrilov Venkatraman Gopalan Long-Qing Chen Anna n.Morozovska Scientific-Practical Materials Research Centre of nAS of Belarus P.Brovki str.19 Minsk 220072Belarus national Research University of Electronic Technology“MIET” Bld.1Shokin sq.ZelenogradMoscow 124498Russia Institute for Problems of Materials Science National Academy of Sciences of UkraineKrzhizhanovsky str.3 Kyiv 03680Ukraine Department of Materials Science and Engineering Pennsylvania State UniversityUniversity Park State CollegePA 16802USA Helmholtz Center Berlin Hahn-Meitner-Platz 1Berlin 14109Germany Institute of Physics National Academy of Sciences of Ukraine46pr.Nauky Kyiv 03028Ukraine

We construct a Landau-Ginzburg thermodynamic potential,and the corresponding phase diagram for pristine and slightly doped bismuth ferrite,a ferroelectric antiferromagnet at room *** potential is developed based on new X-ray and neutron diffraction experiments complementing available *** demonstrate that a strong biquadratic antiferrodistortive-type coupling is the key to a quantitative description of Bi_(1−x)La_(x)FeO_(3) multiferroic phase diagram including the temperature stability of the antiferromagnetic,ferroelectric,and antiferrodistortive phases,as well as for the prediction of novel intermediate structural ***,we show that“rotomagnetic”antiferrodistortive-antiferromagnetic coupling is very important to describe the ferroelectric polarization and antiferrodistortive tilt behavior in the R3c phase of BiFeO_(3).The Landau-Ginzburg thermodynamic potential is able to describe the sequence of serial and trigger-type phase transitions,the temperature-dependent behavior of the order parameters,and the corresponding susceptibilities to external *** can also be employed to predict the corresponding ferroelectric and antiferrodistortive properties of Bi_(1−x)La_(x)FeO_(3) thin films and nanoparticles by incorporating the gradient and surface energy terms that are strongly dependent on the shape,size,and preparation method.

关键词： ferrite ferroelectric diagram

Geochemistry of Thermal Waters of Continental Margin of Far East of Russia

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Acta Geologica Sinica(English Edition) 2016年第1期90卷 276-284页

作者： Ivan V. BRAGIn Georgy A. CHELnOKOV Oleg V. CHUDAEV natalia A. KHARITOnOVA sergey V. VYSOTSKIY Far East Geological Institute Russian Academy of SciencesVladivostok690022 Russia Moscow State University Moscow119991 Russia Far East Federal University Vladivostok690922 Russia

Studied waters belong to warm （T=30-50℃）, alkaline （pH=8.9-9.3）, low mineralized （TDS〈235 mg/l） na-HCO3 or na-SO4-HCO3 thermal waters with high content of SiO2 （up to 81 mg/1） and F （up to 3.9 mg/l）, occur on modern volcano-tectonic rejuvenated areas of Eastern Sikhote-Alin orogenic belt. Low 3He concentration as well as n2/O2 and n2/Ar ratios exclude influence of deep mantle fluid. new rare earth element data constrain our understanding of water-rock interaction occurring in the water source region. Meteoric origin of waters is proved by stable isotope values varying from -71%o to -136.1‰ and from -10.8‰ to -18.8%o for δ^2H and δ^18O respectively. REE patterns reflect high pH, resultfing from water-rock interaction and oxidative conditions. Calculations of deep aquifer temperature using na-K and quartz geothermometers show 116.8-131.1℃ and 82.2-125.8℃ respectively. Presence of deep faults both with abnormal thermal gradient （-45- 50 K/km） define unique geochemical shape of thermal waters of Sikhote-Alin, area, where no present volcanic activity is registered.

关键词： thermal waters water-rock interaction stable water isotopes rare earth elements in thermal waters

Gas-phase dehydration of glycerol over commercial Pt/γ-Al_2O_3 catalysts

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Chinese Journal of Chemical Engineering 2015年第7期23卷 1138-1146页

作者： sergey Danov Anton Esipovich Artem Belousov Anton Rogozhin nizhny novgorod State Technical University n.a. R.E. Alekseev Lobachevsky State University of nizhni novgorod National Research University

Gas-phase dehydration of glycerol to produce acmlein was investigated over commercial catalysts based on γ-Al2O3, viz. A-64, A-56,1-62, AP-10, AP-56, AP-64 and KR-104. To understand the effect of Cl anions, HCl-impregnated sup- ports have been investigated in the dehydration reaction of glycerol at 375 ℃. For comparison, various H-zeolites were also examined. It was found that the glycerol conversion over the solid acid catalysts was strongly dependent on their acidity and surface area. And the relationship between the catalytic activity and the acidity of the catalysts was discussed. The outstanding properties of Pt/γ-Al2O3 catalyst systems for the dehydration of glycerol were revealed. Pt/γ-Al2O3 catalyst （AP-64） showed the highest catalytic activity after 50 h of reaction with an acrolein selectivity of 65% at a conversion of glycerol of 90%. Based on these results, catalysts based on γ-Al2O3 appear to be most promising for gas phase dehydration of glycerol.

关键词： Glycerol Dehydration AcroleinZeolite Gamma alumina

Recent changes in breeding abundance and distribution of the Common Pochard(Aythya ferina)in its eastern range

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Avian Research 2020年第3期11卷 224-237页

作者： Alexander Mischenko Anthony David Fox SauliusŠvažas Olga Sukhanova Alexandre Czajkowski sergey Kharitonov Yuri Lokhman Oleg Ostrovsky Daiva Vaitkuvienė n.severtsov institute of ecology and evolution of the russian academy of sciences leninskiy street 33moscow 117071russia department of bioscience aarhus universitygrenaej 14kalф8410 rфdedenmark nature research centre akademijos 208412 vilniuslithuania russian society for bird conservation and study bolshaya nikitskaya street 6125009 moscowrussia european institute for the management of wild birds and their habitats 59 rue ampère75017 parisfrance kuban scientific-research centre wildlife of the caucasusteplichnaya street 58-18krasnodar 350087russia scientific practical centre of national academy of sciences of belarus for biological resources akademicheskaya street 27220072 minskbelarus.

Background:The Common Pochard(Aythya ferina)(hereafter Pochard),a widespread and common freshwater diving duck in the Palearctic,was reclassified in 2015 from Least Concern to Vulnerable IUCn status based on rapid declines throughout its *** of its status,distribution and the potential causes for the decline in Europe has been undertaken,but there has never been a review of its status in the major part of its breeding range across Russia to the Pacific ***:We reviewed the scientific literature and unpublished reports,and canvassed expert opinion throughout Russia to assess available knowledge about changes in the species distribution and abundance since the ***:While accepting available information may not be representative throughout the entire eastern range of the species,the review found marked declines in Pochard breeding abundance in the last two decades throughout European *** have also declined throughout *** throughout the steppe region seemed related to local drought severity in recent years,necessitating further research to confirm this climate link at larger spatial *** in the forest and forest-steppe regions appeared related to the major abandonment of fish farms in western Russia that had formerly provided habitat for breeding ***,hyper-eutrophication of shallow eutrophic lakes,cessation of grazing and haymaking in floodplain systems necessary to maintain suitable nesting habitat and disappearance of colonies of the Black-headed Gull(Chroicocephalus ridibundus)in a number of wetlands were also *** invasive alien predator species(*** Mink neovison vison and Raccoon Dog nyctereutes procyonoides)and increasing spring hunting were also thought to contribute to *** of expansion in numbers and range only came from small numbers occurring in the Russian Far East,including on the border with China and the long-established isolated population on

关键词： Aythya ferina Breeding Common Pochard Population declines Population stressors

Industrial and wildfire aerosol pollution over world heritage Lake Baikal

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Journal of Environmental Sciences 2021年第9期33卷 49-64页

作者： Olga Popovicheva Elena Molozhnikova sergey nasonov Vladimir Potemkin Ivan Penner Marina Klemasheva Irina Marinaite Ludmila Golobokova Stergios Vratolis Konstantinos Eleftheriadis Tamara Khodzher Institute of nuclear Physics Lomonosov Moscow State UniversityLeninskie Gory1119991 MoscowRussia Limnological Institute Siberian Branch of the Russian Academy of SciencesUlan-Batorskaya Str.3Irkutsk 664033Russia Zuev Institute of Atmospheric Optics Siberian Branch of the Russian Academy of SciencesAcademician Zuev square1Tomsk 634055Russia Institute of nuclear&Radiological Sciences&Technology Energy&SafetyN.C.S.R.“Demokritos”Athens 15310Greece

Lake Baikal is the biggest reservoir of fresh water with unique flora and fauna;presently it is negatively affected by climate change, water warming, industrial emissions, shipping,touristic activities, and Siberian forest *** assessment of air pollution-related Baikal’s ecosystem damage is an unsolved ***, based expedition exploring the Baikal atmospheric aerosol loading, was performed over the lake area in July *** combine the aerosol near-water and vertical distributions over the Lake Baikal basin with meteorological observations and air mass transportation *** sounding of aerosol fields in the troposphere assesses the atmospheric background in the pristine areas and the pollution during fire-affected *** optical properties(scattering and spectral absorption) converted to the particle number size, black carbon(BC) mass, and Absorption Angstrom Exponent(AAE) provide the inside into aerosol *** of industrial emissions from Krasnoyarsk and Irkutsk regions, and wildfire plumes from Republic of Yakutia relates the pollution sources to the increased concentrations of fine particle numbers, PM_(10) and BC mass over Southern and northern/Central Baikal, *** highest PM10 and BC are associated to the harbor and touristic areas of intensive shipping and residential biomass *** estimates applied to aerosol data exhibit the pollution fluxes to water surface over the whole Baikal *** marks the impact of coal combustion, residential biomass burning, and wildfires indicating the high pollution level of the Lake Baikal ecological system.

关键词： Environmental impacts Aerosol pollution Ecosystem Industrial emissions Wildfires Coal combustion Shipping

Effect of fluence and ambient environment on the surface and structural modification of femtosecond laser irradiated Ti

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Chinese Physics B 2016年第1期25卷 789-795页

作者： Umm-i-Kalsoom Shazia Bashir nisar Ali M Shahid Rafique Wolfgang Husinsky Chandra S R nathala sergey V Makarov narjis Begum Institute for Applied Physics Vienna University of TechnologyViennaAustria Centre for Advanced Studies in Physics GC University LahorePakistan Department of Physics The University of LahorePala'stan Department of Basic Sciences and Humanities University of Engineering and Technology FasalabadPakistan Department of Physics University of Engineering and Technology LahorePakistan P.n.Lebedev Physics Institute RAS MoscowRussia Department of Physics COMSATS Institute of Information and TechnologyIslamabadPakistan

Under certain conditions, ultrafast pulsed laser interaction with matter leads to the formation of self-organized conical as well as periodic surface structures （commonly reffered to as, laser induced periodic surface structures, LIPSS）. The purpose of the present investigations is to explore the effect of fsec laser fluence and ambient environments （Vacuum ＆ 02） on the formation of LIPSS and conical structures on the Ti surface. The surface morphology was investigated by scanning electron microscope （SEM）. The ablation threshold with single and multiple （n = 100） shots and the existence of an incubation effect was demonstrated by SEM investigations for both the vacuum and the 02 environment. The phase analysis and chemical composition of the exposed targets were performed by x-ray diffraction （XRD） and energy dispersive x-ray spectroscopy （EDS）, respectively. SEM investigations reveal the formation of LIPSS （nano ＆ micro）. FFT d-spacing calculations illustrate the dependence of periodicity on the fluence and ambient environment. The periodicity of nano-scale LIPSS is higher in the case of irradiation under vacuum conditions as compared to 02. Furthermore, the 02 environment reduces the ablation threshold. XRD data reveal that for the 02 environment, new phases （oxides of Ti） are formed. EDS analysis exhibits that after irradiation under vacuum conditions, the percentage of impurity element （A1） is reduced. The irradiation in the 02 environment results in 15% atomic diffusion of oxygen.

关键词： LIPSS ablation threshold incubation coefficient structural modification