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Dissolution mechanism of calcium apatites in acids:A review of literature

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World Journal of Methodology 2012年第1期2卷 1-17页

作者： sergey v Dorozhkin Kudrinskaja sq.1-155 Moscow 123242Russia

Eight dissolution models of calcium apatites(both fluorapatite and hydroxyapatite) in acids were drawn from the published literature,analyzed and *** limitations and drawbacks of the models were conversed in *** models were shown to deal with different aspects of apatite dissolution phenomenon and none of them was able to describe the dissolution process in ***,an attempt to combine the findings obtained by different researchers was performed which resulted in creation of the general description of apatite dissolution in *** this purpose,eight dissolution models were assumed to complement each other and provide the correct description of the specific aspects of apatite *** general description considers all possible dissolution stages involved and points out to some missing and unclear phenomena to be experimentally studied and verified in *** creates a new methodological approach to investigate reaction mechanisms based on sets of affine data,obtained by various research groups under dissimilar experimental conditions.

关键词： Dissolution mechanism literature calcium apatites models

Electrochemical performance of Klason lignin as a low-cost cathode-active material for primary lithium battery

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Journal of Energy Chemistry 2015年第3期24卷 346-352页

作者： sergey v Gnedenkov Denis P Opra Ludmila A Zemnukhova sergey L Sinebryukhov Iliya A Kedrinskii Olga v Patrusheva valentin I Sergienko Institute of Chemistry Far Eastern BranchRussian Academy of Sciences Far Eastern Federal University Siberian State Technological University

A few classes of organic compounds are promising electrode-active materials due to their high power and energy densities,low cost,environmental friendliness,and *** the present work,the possibility of using Klason lignin extracted from buckwheat husks as a cathode-active material for a primary lithium battery has been investigated for the first *** reaction mechanism in the lithium/lignin electrochemical cell was suggested based on the deep galvanostatic discharge（up to 0.005 v） data and cyclic voltammetry *** dependence of the electrochemical behavior of the Klason lignin on the milling degree was *** maximum specific capacity of the lignin is equal to 600 m Ah g-1at a discharge current density of 75 μA *** effect of the thermal treatment of the Klason lignin cathode at250°C on the cell performance was *** was found that the discharge capacity of the cell increased by 30% in the range from 3.3 to0.9 v for the treated cathode *** results demonstrate the prospects of using Klason lignin-based electrochemical cells as low-rate primary power sources.

关键词： Klason lignin primary lithium battery organic electrode buckwheat husks

The Confirmed validity of the Explanatory Aspect of the Thermohydrogravidynamic Theory Concerning the Evaluated Maximal Magnitude of the Strongest Earthquake of the Earth near the Predicted Date 2021.1 AD during the Range from October 27, 2020 to May 17, 2021 AD

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Journal of Geoscience and Environment Protection 2022年第7期10卷 319-330页

作者： sergey v. Simonenko v. I. Il’ichev Pacific Oceanological Institute Far Eastern Branch of Russian Academy of Sciences Vladivostok Russia

We present the explanation (in the frame of the established thermohydrogravidynamic technology) of the maximal magnitude M = 8.1 (according to the U.S. Geological Survey) of the strongest earthquake of the Earth occurred in Kermadec Islands, New Zealand on March 4, 2021 AD (during the considered range from October 27, 2020 to May 17, 2021 AD). This strongest earthquake occurred near the calculated date 2021.1 AD corresponding (in the frame of the thermohydrogravidynamic theory) to the local maximal combined planetary and solar integral energy gravitational influence on the internal rigid core of the Earth. To obtain this explanation, we have analyzed the strongest earthquakes of the Earth (according to the U.S. Geological Survey) occurred near the dates of the local maximal combined planetary and solar integral energy gravitational influences on the internal rigid core of the Earth.

关键词： Thermohydrogravidynamic Theory Non-Stationary Cosmic Gravitation Gen-eralized First Law of Thermodynamics Cosmic Geology Cosmic Geophysics Cosmic Seismology Global Seismotectonic Processes Global Prediction Thermohydrogravidynamic Principles Thermohydrogravidynamic Technology

The validity of the Thermohydrogravidynamic Theory Concerning the Predicted Dates of the Maximal Temporal Intensifications of the Global Seismotectonic Processes of the Earth during the Range 2020 - 2023 AD

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Journal of Geoscience and Environment Protection 2023年第7期11卷 242-255页

作者： sergey v. Simonenko v. I. Il’ichev Pacific Oceanological Institute Far Eastern Branch of Russian Academy of Sciences Vladivostok Russia

We present (on the 13th International Conference on Geology and Geophysics) the convincing evidence that the strongest earthquakes (according to the U.S. Geological Survey) of the Earth (during the range 2020 - 2023 AD) occurred near the predicted (calculated in advance based on the global prediction thermohydrogravidynamic principles determining the maximal temporal intensifications of the global seismotectonic, volcanic, climatic and magnetic processes of the Earth) dates 2020.016666667 AD (Simonenko, 2020), 2021.1 AD (Simonenko, 2019, 2020), 2022.18333333 AD (Simonenko, 2021), 2023.26666666 AD (Simonenko, 2022) and 2020.55 AD, 2021.65 AD (Simonenko, 2019, 2021), 2022.716666666 AD (Simonenko, 2022), respectively, corresponding to the local maximal and to the local minimal, respectively, combined planetary and solar integral energy gravitational influences on the internal rigid core of the Earth. We present the short-term thermohydrogravidynamic technology (based on the generalized differential formulation of the first law of thermodynamics and the first global prediction thermohydrogravidynamic principle) for evaluation of the maximal magnitude of the strongest (during the March, 2023 AD) earthquake of the Earth occurred on March 16, 2023 AD (according to the U.S. Geological Survey). .

关键词： Thermohydrogravidynamic Theory Non-Stationary Cosmic Gravitation Generalized First Law of Thermodynamics Cosmic Geology Cosmic Geophysics Cosmic Seismology Global Seismotectonic Processes Global Prediction Thermohydrogravidynamic Principles The Short-Term Thermohydrogravidynamic Technology

CaAl_(2)Si_(2)O_(8) polymorphs:Sensitive geothermometers and geospeedometers

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Geoscience Frontiers 2023年第1期14卷 33-45页

作者： Liudmila A.Gorelova Oleg S.vereshchagin vladimir N.Bocharov sergey v.Krivovichev Andrey A.Zolotarev Mikhail A.Rassomakhin Institute of Earth Sciences Saint Petersburg State UniversitySt.PetersburgRussia Centrefor Geo-Environmental Research and Modelling(Geomodel).Saint Petersburg State University St.PetersburgRussia Kola Science Centre ApatityMurmansk RegionRussia South Urals Federal Research Center of Mineralogy and Geoecology of UB RAS MiassRussia

Plagioclase is the major rock-forming mineral constituting the Earth's crust,whereas anorthite(CaAl_(2)Si_(2)O_(8))is a common minerals in lunar highlands crust,meteorites,possibly in some comets and on *** anorthite,two high-temperature polymorphs of CaAl_(2)Si_(2)O_(8)are known:dmisteinbergite and svyatoslavite,which are found in burnt coal dumps,meteorites and *** we present the results of detailed studies(quenching experiments,elemental analysis,Raman spectroscopy and in situ high temperature single crystal X-ray diffraction(up to 1000℃))on naturally co-occurring CaAl_(2)Si_(2)O_(8)polymorphs(anorthite,dmisteinbergite and svyatoslavite)from a burnt coal dump in Kopeisk,*** polymorphs were found in all natural samples and obtained upon heating of dmisteinbergite(unquenchableβ-dmisteinbergite and quenchable y-dmisteinbergite).It was shown that Ca coordination differs significantly in CaAl_(2)Si_(2)O_(8)polymorphs,resulting in a different capacity to host Ba and possibly other large ion lithophile *** our data on natural samples with the previously published data on natural and synthetic compounds,we propose a new scheme of CaAl_(2)Si_(2)O_(8)polymorphs *** results indicate that CaAl_(2)Si_(2)O_(8)polymorphs could be used for temperature estimations for both Earth and planetary sciences.

关键词： Feldspar Polymorphism Anorthite Dmisteinbergite Svyatoslavite CaAl_(2)Si_(2)O_(8)

Characterization of irradiated nails in terms of depolarizing Mueller matrix decompositions

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Frontiers of Optoelectronics 2017年第3期10卷 308-316页

作者： sergey SAvENKOv Alexander v. PRIEZZHEv Yevgen OBEREMOK sergey SHOLOM Ivan KOLOMIETS Taras Shevchenko National University of Kyiv Faculty of Radio Physics Electronics and Computer Systems Vladimirskaya str. 64 01033 Kiev Ukraine Lomonosov Moscow State University Department of Physics and Intemational Laser Center Vorobiovy Gory 119992 Moscow Russia Oklahoma State University Department of Physics 145 Physical Sciences Building Stillwater Oklahoma 74078 USA

Mueller matrices were measured for natural （or reference） samples of human nails and samples irradiated by a 2 Gy ionizing radiation dose. The elements of the total Mueller matrix as a function of scattering angle were measured in backscattering mode at a wavelength of 632.8 nm. Several types of depolarizing Mueller matrix decompositions, namely, Ossikovsky, Williams, and Chipman, were calculated as a function of scattering angle for each nail sample. A comparative analysis of the sensitivity of the Mueller matrix decompositions in relation to the problem of emergency dose assessment in nails was performed.

关键词： Mueller matrix depolarization human nails,ionizing radiation dose scattering

High-pressure, High-temperature Synthesis and Properties of the Monoclinic Phase of Y2O3

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Chemical Research in Chinese Universities 2016年第4期32卷 545-548页

作者： ZHANG Qian WU Xiang OvSYANNIKOv v. sergey DONG Juncai QIN Shan DUBROvINSKY S. Leonid CHEN Dongliang Gemological Institute China University of Geosciences Wuhan 430074 P. R. China State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan 430074 P R. China Key Laboratory of Orogenic Belts and Crustal Evolution Ministry of Education & School of Earth and Space Sciences Peking University Beo'ing 100871 P. R. China Bayerisches Geoinstitut Universitat Bayreuth Bayreuth D-95447 Germany Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China

The monoclinic phase of Y2O3（B-RES） has been synthesized using a Kawai-type multi-anvil apparatus under 20 GPa at 1800℃. Samples of the cubic Y2O3（C-RES） and monoclinic Y2O3 phases were characterized by synchrotron radiation X-ray diffraction, X-ray absorption near edge structure and Raman spectroscopy. Crystal structures of the cubic and monoclinic phases have been examined using Rietveld refinement of the X-ray diffraction data. The cubic-to-monoclinic transition of Y2O3 was reconstructive and irreversible. The X-ray diffraction results were further confirmed by simulation of the X-ray absorption spectra.

关键词： Y2O3 High pressure Multi-anvil synthesis

Self-Assembly and Ordering of C60 on the WO2/W（110） Surface

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Nano Research 2011年第2期4卷 194-203页

作者： sergey A. Krasnikov sergey I. Bozhko Kevin Radican Olaf Lübben Barry E. Murphy Sundar-Raja vadapoo Han-Chun Wu Mohamed Abid valery N. Semenov lgor v. Shvets Centre tbr Research on Adaptive Nanostrucmres and Nanodevices （CRANN） School of Physics Trinity College Dublin Dublin 2 Ireland Institute of Solid State Physics Russian Academy of Sciences Chernogolovka Russian Federation King Abdullah Institute for Nanoteclmology College of Science King Saud University Riyadh 1145l Saudi Arabia

The growth and ordering of C60 molecules on the WO2/W（110） surface have been studied by low-temperature scanning tunnelling microscopy and spectroscopy （STM and STS）, low-energy electron diffraction （LEED）, and density functional theory （DFT） calculations. The results indicate the growth of a well-ordered C60 layer on the WO2/W（110） surface in which the molecules form a close-packed hexagonal structure with a unit cell parameter equal to 0.95 nm. The nucleation of the C60 layer starts at the substrate＇s inner step edges. Low-temperature STM of C60 molecules performed at 78 K demonstrates well-resolved molecular orbitals within individual molecules. In the C60 monolayer on the WO2/W（110） surface, the molecules are aligned in one direction due to intermolecular interaction, as shown by the ordered molecular orbitals of individual C60. STS data obtained from the C60 monolayer on the WO2/W（110） surface are in good agreement with DFT calculations.

关键词： Fullerenes self-assembly tungsten oxide low-temperature scanning tunnelling microscopy scanning tunnellingspectroscopy W(110)

Diclofenac sodium aqueous systems at low concentrations: Interconnection between physicochemical properties and action on hydrobionts

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Journal of Environmental Sciences 2020年第2期32卷 177-186页

作者： Irina S.Ryzhkina Yuliya v.Kiseleva Lyaisan I.Murtazina Tatyana v.Kuznetsova Erik R.Zainulgabidinov Igor v.Knyazev Andrew M.Petrov sergey E.Kondakov Alexander I.Konovalov Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific CenterRussian Academy of Sciences8 Arbuzov str.Kazan 420088Russia Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences 28 Daurskaya Str.Kazan 420087Russia Lomonosov Moscow State University Chemistry Dept.1/3 Lenin HillsMoscow 119899Russia

Diclofenac sodium(DS) is a widely used nonsteroidal anti-inflammatory drug(NSAIDs).NSAIDs are poorly removed during standard wastewater *** consequences of the presence of NSAIDs in rivers and lakes at 10-11–10-8 mol/L are not yet established;therefore, ecotoxicologists have focused their efforts on studying the effect of lowconcentration NSAIDs on fish and hydrobionts, and also on predicting the potential risks to *** provides some information about the bioeffects of some NSAID solutions in low concentrations but there is no physicochemical explanation for these *** the physicochemical patterns of DS solutions in the low range of concentrations and establishing an interconnection between the solutions’ physicochemical properties and bioeffects can provide a conceptually new and important source of information regarding the unknown effects of *** physicochemical properties and action of DS solutions on Ceriodaphnia affinis cladocerans,Paramecium caudatum infusoria, Chlorella vulgaris unicellular green algae, as well as on the growth of the roots of Triticum vulgare wheat seeds, were studied in the calculated concentration range of 1 × 10-3–1 × 10-18 mol/*** relationship between these phenomena was established using the certified procedures for monitoring the toxicity of natural water and *** was shown for the first time that water solutions of DS are dispersed systems in which the dispersed phase undergoes a rearrangement with dilution, accompanied by changes in its size and properties, which affects the nonmonotonic dependences of the system’s physicochemical properties and could cause nonmonotonic changes in action on hydrobionts in the low concentration range.

关键词： Diclofenac sodium Low concentration Aqueous solutions Physicochemical properties Hydrobionts Toxicity