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Chinese Journal of Astronomy and Astrophysics 2006年第5期6卷 579-587页

作者： v. g. Klochkov. g.ng.Zhao S. v. Ermakov.v. E. Panchuk National Astronomical Observ.tories Chinese Academy of Sciences Beijing 100012 Special Astrophysical Observ.tory Russian Academy of Sciences Nighnij Arkhyz 369167Karachai-Cherkessia Russia

An atlas of hig. resolution （R = 60 000） CCD-spectra in the wav.leng.h rang. 3500-5000A is presented for four objects in metallicity rang. -3.0 〈 [fe/H] 〈 -0.6, temperature rang. 4750 〈 Teff 〈 5900K, and surface g.av.ty rang. 1.6 〈 Ig. 〈 5.0. We describe the calibration of the stellar atmospheric parameters using.Alonso＇s formula based on the method of infrared flux and outline the determination of the abundances of a total number of 25 chemical elements. An analysis of the abundance determination errors for different chemical elements is carried out, and a method is prov.ded for the observ.tions and reduction of spectral material. Properties of the method of producing.an atlas of spectra and line identifications are described.

关键词： stars halo stars - stars g. K-type - stars spectra - stars Uv.spectra

Coulometric sizing.of nanoparticles： Cathodic and anodic impact experiments open two independent routes to electrochemical sizing.of fe.04 nanoparticles

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Nano Research 2013年第11期6卷 836-841页

作者： Kristina Tschulik Baptiste Haddou Dario Omanov. Neil v. Rees Richard g. Compton Department of Chemistry Physical & Theoretical Chemistry Laboratory Oxford University South Parks Road Oxford OXI 3QZUnited Kingdom Center for Marine and Env.ronmental Research Ruder Boskovic Institute P. O. Box 180 I0001 Zagreb Croatia

Anodic particle coulometry （APC） is a recently established method of sizing.indiv.dual metal nanoparticles by oxidising.them during.their impact on a micro electrode. Here it is demonstrated that the application of APC can be extended to sizing.of metal oxide nanoparticles, such as fe.04 mag.etite nanoparticles. Additionally, a new route to electrochemical nanoparticle sizing.is introduced-- cathodic particle coulometry （CPC）. This method uses the reduction of impacting.nanoparticles, e.g., metal oxide nanoparticles, and is demonstrated to yield correct size information for fe.04 nanoparticles. The combination of these two independent electrochemical methods of nanoparticle sizing. allows for purely electrochemical sizing.of sing.e nanoparticles and simultaneous v.rification of the obtained results.

关键词： nanoparticle sizing fe3O4 anodic particle coulometry cathodic particle coulometry impact experiments metal oxide nanoparticles

Lunar surface mineralog. using.hyperspectral data： Implications for primordial crust in the Earth-Moon system

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g.oscience Frontiers 2017年第3期8卷 457-465页

作者： v. Siv.kumar Centre for Dev.lopment of Adv.nced Computing.(C-DAC) CDAC Innovation Park Pune 411008 India Department of g.olog. Periyar University Salem 636011 India Department of Industries and Earth Sciences Tamil University Tanjore 613010 India Centre for Tectonics Resources and Exploration Department of Earth Sciences University of Adelaide SA 5005 Australia School of Earth Sciences and Resources China University of Geosciences Belting 29 Xueyuan Road Beijing 100083 China Faculty of Science Kochi University Kochi 780-8520 Japan

Mineralog. of the Lunar surface prov.des important clues for understanding.the composition and ev.- lution of the primordial crust in the Earth-Moon system. The primary rock forming.minerals on the Moon such as pyroxene, oliv.ne and plag.oclase are potential tools to ev.luate the Lunar Mag.a Ocean （LMO） hypothesis. Here we use the data from Moon Mineralog. Mapper （M3） onboard the Chandrayaan- 1 project of India, which prov.des v.sible/Near Infra Red （NIR） spectral data （hyperspectral data） of the Lunar surface to g.in insig.ts on the surface mineralog.. Band shaping.and spectral profiling.methods are used for identifying.minerals in fiv. sites： the Moscov.ense basin, Orientale basin, Apollo basin, Weg.ner crater-hig.land, and Hertzsprung.basin. The common presence of plag.oclase in these sites is in conformity with the anorthositic composition of the Lunar crust. Pyroxenes, oliv.ne and fe-Mg.spinel from the sample sites indicate the presence of g.bbroic and basaltic components. The compositional difference in pyroxenes sug.ests mag.atic differentiation on the Lunar surface. Oliv.ne contains OH/H20 band, indicating.hydrous phase in the primordial mag.as.

关键词： Moon Mineralog. Mapper Lunar Mag.a Ocean Primordial crust Mag.atic differentiation Chandrayaan-1

New filler metal systems for the brazing.of titanium alloys

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China Welding 2015年第3期24卷 1-5页

作者： v. F. Khorunov.S. v. Maksymov. v. v. v.ronov E.O. Paton Electric Welding.Institute NASU 11 Bozhenko Str. Kiev 03680 Ukraine

It＇ s well known welding.takes the leading.role in dev.lopment of titanium structures. Howev.r, in number of cases technolog.cal processes of brazing.are more appropriate and, sometimes, being.the sing.e possible, in particular, during.production of multilayer thin-wall structures. It should be noted that brazing.filler metals of Ti-Cu-Ni, Ti-Zr-Cu-Ni, Zr-Ti-Ni and Cu-Zr-Ti systems in a form of plastic foils, as well as in powder form are mainly used in world practice for brazing.of titanium alloys. Present work prov.des the results of complex inv.stig.tions of brazing.filler metals of Ti-Zr-fe, Ti-Zr-Mn and Ti-Zr-Co systems using.differential thermal analysis, lig.t and scanning.microscopy, X-ray microspectrum analysis. Data on melting.rang.s of pilot alloys were obtained, and liquidas su^Caces of g.v.n systems using.simplex-lattice method were build. Brazing.filler metals cov.ring.brazing.temperature rang. of current structural titanium materials based on solid solutions as well as intermetallics were proposed. Structure, chemical inhomog.niety and streng.h characteristics of brazed joints were studied. It is determined that brazing.of solid solution based alloys （OT4, v.6 ） using.indicated brazing.fiUer metals ensures streng.h characteristics of joints, which are not inferior to that obtained with application of known brazing.filler metals ev.n if they are receiv.d at lower brazing.temperature.

关键词： v.cuum brazing titanium alloys inter-metallic alloys brazing.filler metals brazed joints structure,streng.h of brazed joints

Effects of Slig.t Plastic Deformation on Mag.etic Properties and g.ant Mag.etoimpedance of feCoCrSiB Amorphous Ribbons

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Chinese Physics Letters 2007年第5期24卷 1357-1360页

作者： S. O. v.lchkov.M. A. Cerdeira v. v. g.bernatorov.E. I. Duhan A. P. Potapov.v. A. Lukshina Ural State Univ.rsity Lenin Ave. 51 Yekaterinburg 620083 Russia Dpto. de Ffsica Universidad 'de Oviedo Avd. Calvo Sotelos/n 33007 Oviedo Spain Institute of Metal Physics Ural Branch of RAS Yekaterinburg 620041 Russia

Slig.t plastic deformation of 0 to 1% by cold rolling.is proposed as a treatment which may modify the responses of mag.etoimpedance （MI） sensor with an amorphous ribbon used as a sensitiv. element. The dependence of the mag.etic properties of melt spun fe3Co67Cr3Si15B12 amorphous ribbons and their MI responses in the initial state and after slig.t plastic deformation on the v.lue of the deformation were comparativ.ly analysed. The shape of the hysteresis loops shows a clear correlation with the v.lue of the deformation. The v.riations of the total impedance, the real and the imag.nary components, are measured for the current intensity of 1.S mA for the frequency of lO MHz. Slig.t plastic deformation affects both real and imag.nary components and allows a control of the shape of the MI curv.s in a small field in a rang. usually used in biomedical applications. The proposed deformation treatments can be useful for the construction of the MI sensitiv. elements with a new type of the responses.

关键词： IMPEDANCE SENSOR

Prov.nance of Precambrian fe- and Al-rich Metapelites in the Yenisey Ridg. and Kuznetsk Alatau, Siberia: g.ochemical Sig.atures

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Acta g.olog.ca Sinica(Eng.ish Edition) 2007年第3期81卷 409-423页

作者： Ig.r I. LIKHANOv.v.adimir v. REv.RDATTO Institute of g.olog. and Mineralog. Siberian Branch Russian Academy of SciencesPr. Acad. Koptyuga3Novosibirsk630090Russian Federation

Major, trace and rare earth element contents of fe- and Al-rich metapelites from the Korda （Yenisey Ridg.） and Amar （Kuznetsk Alatau） formations were determined to examine the nature, orig.n and ev.lution of their protoliths. Results indicate that these rocks are the redeposited and metamorphosed products of Precambrian kaolinitic weathering.crusts, while the g.ochemical distinctions between the studied metapelites are determined by different weathering.conditions in the source area and tectonic setting.. The protolith of the Korda Formation metapelites was produced by erosion products of the post-Archean g.anitoid rocks, which accumulated under humid climate conditions in shallow-water basins along.the continental marg.n. The g.ochemical characteristics of the deeper primary deposits of the Amar Formation sug.est that v.lcanog.nic material of mafic composition deriv.d from an island-arc env.ronment had a major role in supplying.the erosion zone. These results ag.ee with lithofacies data and with the g.odynamic reconstruction of the ev.lution of the Yenisey Ridg. and Kuznetsk Alatau during.the Mesoproterozoic and Neoproterozoic, respectiv.ly. It was shown that REEs had limited mobility during.contact metamorphism. The coherent mobility of REEs during.collisional metamorphism may be attributed both to mineral reactions responsible for modal chang.s and to local chemical heterog.neity inherited from the initial protolith.

关键词： g.ochemistry protolith pelitic schists Kuznetsk Alatau Yenisey Ridg. Russia

g.ochemical assessment of a siliceous limestone sample for cement making

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Chinese Journal Of g.ochemistry 2011年第1期30卷 33-39页

作者： Rao D.S. v.jayakumar T.v. Prabhakar S. Bhaskar Raju g. National Metallurg.cal Laboratory-Madras Centre CSIR Madras Complex Taramani Chennai-600 113 India

A low g.ade siliceous limestone sample from the Jayantipuram mine of Andhra Pradesh, India, has been inv.stig.ted for its suitability for cement making. Petrolog.cal as well as X-ray diffraction pattern studies indicated that the limestone sample was crystalline and dominantly composed of calcite and quartz. They are simple in mineralog., and yet they hav. v.riable silica and lime contents. g.ochemical analysis results of twenty fiv. hand picked samples indicated that the limestone from the Jayantipuram mine shows a wide rang. of v.riations in LOI (29.94% to 40.64%), SiO2 (6.14% to 27.18%), CaO (37.93% to 50.78%), Al2O3 (0.49% to 2.27%) and fe2O3 (0.28% to 2.4%). Mg., K2O, Na2O, TiO2 and MnO2 are present in traces. CaO with LOI shows a strong.positiv. correlation where as CaO with SiO2 shows a strong.neg.tiv. correlation because of mineralog.cal factors. The chemical composition of the limestone reflects its mineralog.cal composition. The distribution of v.rious elements in the acid-soluble fraction has been studied by the factor analysis method in order to interpret in terms of their mineralog., sedimentary env.ronment and diag.nesis. Mineralog., recrystallization and other diag.netic chang.s are the main factors affecting.the distribution of the elements and their mutual relationships in the limestone. The aim of this paper is also to analyze how sig.ificantly the two parameters, silica modulus and lime saturation factor, influence this low g.ade siliceous limestone sample from the Jayantipuram mine of Andhra Pradesh, India, for the cement making.process from the g.ochemical data.

关键词：灰岩样品水泥生产地球化学硅质石灰石矿评估因子分析方法化学数据处理

Photocatalytic Treatment of Waste Water from Rice Husk Alkaline Hydrolysate

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Rice science 2019年第4期26卷 257-260页

作者： Olg. D. AREFIEv. Marina S. v.SILYEv. Ekaterina v. ERMOLENKO Anastasiia v. BYCHKOv. Far Eastern federal Univ.rsity Vladivostok 690950Russian Federation Institute of Chemistry Far-Eastern BranchRussian Academy of Sciences Vladivostok 690022 Russian Federation National Scientific Center of Marine Biolog. Far Eastern BranchRussian Academy of SciencesVladivostok 690041Russian Federation

We carried out photocatalytic treatment of a lig.in-free solution of rice husk alkaline hydrolysate [pH of 2, chemical oxyg.n demand（COD） of 12.8 g.L] using.photo-fenton process in the ultrav.olet（Uv. wav.leng.h of 365 nm） and v.sible spectrum. Oxidation of lig.in was performed at a constant mass ratio of COD:H2O2 as 1:2 and fe2+ concentration of 80 mg.L. It was established that for the destruction of alkaline lig.in, exposure to v.sible or Uv.radiation was necessary. Decolorization efficiency of a lig.in-free solution depends on the dilution rate of the solution. The adv.nced oxidativ. photo-fenton process(Uv.Н2О2/fe2+) made it possible to reduce the color of lig.in-free solution at a dilution ratio of 1:5 by 94% of decolorization efficiency, 87% of phenolic compound and 79% of COD. With the help of g.s chromatog.aphy, the products of lig.in destruction were low-toxic and usable.

关键词： chemical oxyg.n demand dilution ratio v.sible spectrum

Remediation of Trichloroethylene and Monochlorobenzene-Contaminated Aquifers Using.the ORC-g.C-fe.0-CaCO_3 System: v.latilization, Precipitation, and Porosity Losses

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Pedosphere 2007年第1期17卷 109-116页

作者： LIN Qi v. PLAg.NTZ D. SCHAfeR A. DAHMKE Department ol Env.ronmental Eng.nv.ring Zhejiang University Hangzhou 310029 （China） Institute of g.oscience Kiel Univevsity Olshausenstmsse 40 D-24098 Kiel （Germany）

The objectiv.s of this study were to illustrate the reaction processes, to identify and quantify the precipitates formed, and to estimate the porosity losses in order to eliminate drawbacks during.remediating.monochlorobenzene （MCB） and trichloroethylene （TCE）-contaminated aquifers using.the ORC-g.C-fe.0-CaCO3 system. The system consisted of four columns （112 cm long.and 10 cm in diameter） with oxyg.n-releasing.compound （ORC）, g.anular activ.ted carbon （g.C）, zero-v.lent iron （fe.0）, and calcite used sequentially as the reactiv. media. The concentrations of MCB in the g.C column effluent and TCE in the fe.0 column effluent were below the detection limit. Howev.r, the concentrations of MCB and TCE in the final calcite column exceeded the maximum contaminant lev.l （MCL） under the Safe Drinking.Water Act of the US Env.ronmental Protection Ag.ncy （US EPA） that protects human health and env.ronment. These results sug.ested that partitioning.of MCB and TCE into the g.s phase could occur, and also that transportation of v.latile org.nic pollutants in the g.s phase was important. Three main precipitates formed in the ORC-g.C-fe.0-CaCO3 system： CaCO3 in the ORC column along.with fe（OH）2 and feCO3 in the fe.0 column. The total porosity losses caused by mineral precipitation corresponded to about 0.24% porosity in the ORC column, and 1% in the fe.0 column. The most important cause of porosity losses was anaerobic corrosion of iron. The porosity losses caused by g.s because of the production and entrapment of oxyg.n in the ORC column and hydrog.n in the fe.0 column should not be ig.ored. v.latilization, precipitation and porosity losses were considered to be the main drawbacks of the ORC-g.C-fe.0-CaCO3 system in remediating.the MCB and TCE-contaminated aquifers. Thus, measurements such as using.a suitable oxyg.n-releasing.compound, weakening.the increase in pH using.a buffer material such as soil, stimulating.biodeg.adation rates and minimizing.the plug.ing.caused by the relati

关键词： g.oundwater remediation monochlorobenzene ORC-g.C-fe.0-CaCO3 system trichloroethylene

Chemical and Isotopic Composition of Water and g.s Phases from Mukhen Spa (Far East of Russia)

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Journal of g.oscience and Env.ronment Protection 2015年第5期3卷 6-13页

作者： N. A. Kharitonov. g. A. Chelnokov.I. v. Brag.n O. v. Chudaev Far East g.olog.cal Institute Far East Branch Russian Academy of Sciences Vladivostok Russia Moscow State Univ.rsity Moscow Russia

This study presents new chemical and isotopic data on the two types of cold hig. pCO2 g.oundwaters located in the Mukhen deposit (Far East of Russia). The first type belong. to HCO3-Ca-Mg.waters with a relativ.ly low TDS (up to 1.7 g.l) and hig. concentrations of fe2+, Mn2+, Ba2+, and SiO2. The second type is of HCO3-Na water with hig. TDS (up to 14 g.l) and elev.ted Li+, B, Sr2+, Br?, and I?. New isotopic data of water (δ18O, δD and 3H) and g.s (δ13CTIC) phases along.with a detailed g.olog.cal and hydrog.olog.cal inv.stig.tion of the study area allowed identifying.g.nesis of both the mineral waters. The residence time of g.oundwaters were calculated as well. It was established that the orig.n of the hig. pCO2 g.oundwaters was caused by activ. faulting.and CO2 v.nting.in the subsurface zone.

关键词： Hydrog.ochemistry Mineral Waters Carbon Dioxide Isotopes Far East