Showing 561 - 580 results of 1,272 for search '"chemical element"', query time: 0.16s Refine Results
  1. 561

    The abundances of heavy elements in BL138 – red giant of local group fornax dwarf spheroidal galaxy by V.F. Gopka, A.V. Yushchenko, V.A. Yushchenko, A.V. Shavrina, S.M. Andrievsky, Y. Jeong, E.P. Shereta

    Published 2018-08-01
    “…The abundances of 12 stable chemical elements, namely Y, Zr, Nb, Mo, Ru, La, Ce, Pr, Nd, Eu, Dy, Er, Lu, and Hf. …”
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    Article
  2. 562

    INFLUENCE OF MICROALLOYING BY BORON ON HARDENABILITY OF STEEL by E. P. Baradyntseva, N. A. Glazunova, O. V. Rogovtsova

    Published 2016-12-01
    “…The conducted researches have allowed to draw a conclusion that changing content of various chemical elements, such as nitrogen, boron, the titan and aluminum in steel containing boron, produced by JSC «BSW – Management Company of Holding «BMC» at the stage of preparation of chart flowsheet make it possible to predict terms of hardenability of the final product.…”
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    Article
  3. 563

    Gas Hydrates as High-Efficiency Storage System: Perspectives and Potentialities by Alberto Maria Gambelli, Federico Rossi, Franco Cotana

    Published 2022-11-01
    “…In the text, the physical and chemical elements necessary to confirm the technical feasibility of the process are given. …”
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    Article
  4. 564

    A geographical evaluation of the qualitative characteristics of drinking water in the city of Nasiriyah and ways of developing it by أنور الكلابي, سميع السهلاني

    Published 2015-05-01
    “…And measuring the level of concentrations of physical elements [hydrogen ion pH, total dissolved salts T.D.S, dissolved oxygen Do, temperature, turbidity], and chemical elements [calcium Ca, magnesium Mg, sodium Na, potassium K, chlorides Cl, sulfates So4], based on the data of the Directorate of Environment. …”
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    Article
  5. 565

    INFLUENCE OF THERMAL DIFFUSION CARBONITRATION AND STRUCTURE OF DIFFUSION COATINGS ON MECHANICAL PROPERTIES OF P6M5 TOOL STEEL by N. G. Kouhareva, S. N. Petrovich, N. A. Galynskaya

    Published 2009-08-01
    “…The paper investigates micro-structure, distribution of chemical elements in diffusion carbonitride coatings on P6M5 steel that have been obtained in powder cyanoless media at temperature 450–550 °C, distribution of micro-hardness and also results of the experiments on wear resistance executed at loads of 50 and 400 MPa.Influence of  machining temperature on  dimension and shape of  hardening phases is shown in the paper. …”
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  6. 566

    Joint influence of temperature and ions of metals on level of activity alkaline phosphatase the mucous membrane of intestines beluga, the starlet and their hybrid by D. A. Bednyakov

    Published 2015-02-01
    “…Dependence of response of enzyme on action of ions of metals according to their position in a periodic table of chemical elements is shown. The given dependence remains and at temperature change incubation, only at low temperatures the activating effect of metals being in the period beginning is maximum, and at high, is maximum inhibiting effect of metals being in the period end.…”
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    Article
  7. 567

    Investigation of changes in the composition of anodic TiO2 nanotubes at different stages of formation by AES and TOF SIMS methods by Dronova Daria, Gavrilov Sergei, Dronov Alexey

    Published 2022-10-01
    “…Our goal was to show the profile distribution of chemical elements and reaction products at each of the initial stages of the anodic oxide growth in the ethylene glycol-based electrolyte containing fluoride, which will help expand the understanding of pore formation mechanism.…”
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  8. 568
  9. 569

    On the Marija Reka mercury deposit and on its comparison with the Litija and Idrija deposits from the aspect of plate tectonics by Ivan Mlakar

    Published 1995-12-01
    “…The surroundings of the Marija Reka deposit were studied in detail, and on the basis of literature data its geologic structure was reconstructed.The chemical elements Ni and Hg are correlated, and therefore comparisons were made with the deposits in Sava folds in which also mercury occurs. …”
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    Article
  10. 570

    Structural studies of the brass ingots from the Shcherbet historical complex of the Lower Kama region: neutron diffraction and tomography studies by A.Zh. Zhomartova, E.F. Shaykhutdinova, B.A. Bakirov, S.E. Kichanov, D.P. Kozlenko, A.G. Sitdikov

    Published 2022-09-01
    “…The neutron tomog- raphy yielded 3D data of the spatial distribution of chemical elements in the brass alloy of the studied ingots, as well as inner voids and cavities as a possible result of the gas output during casting process. …”
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    Article
  11. 571

    The photoluminescence technique applied to the investigation of structural imperfections in quantum wells of semiconducting material by Eliermes Arraes Meneses, Sidney Alves Lourenço, Dari de Oliveira Toginho Filho, José Leonil Duarte, Ivan Frederico Lupiano Dias, Edson Laureto

    Published 2005-02-01
    “…In this work the potentiality of this technique is explored through the investigation and characterization of structural imperfections originated from fluctuations in the chemical composition of ternary and quaternary alloys, from interface roughnesses, and from unintentional compounds formed by the chemical elements intermixing at the interfaces. Samples of GaAs/AlGaAs, GaAsSb/GaAs, GaAsSbN/GaAs and GaAs/GaInP quantum well structures are analyzed to verify the influence of the structural imperfections on the PL spectra…”
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  12. 572

    Features of processing and interpretation of magnetic and lithochemical data while exploring oil and gas fields in Siberian platform conditions (by the example of Imbinskaya gasvbe... by Igor Sobolev, Nikolay Bredikhin, Vitaliy Merkulov, Aleksandr Orekhov

    Published 2019-05-01
    “…Against the background of sedimentary formations the effusive rocks and intrusive bodies of the basic structure are differentiated by sharp differences in magnetic properties and levels of accumulation of some chemical elements. In general, the areas of epigenetic influence of hydrocarbon deposits are characterized by high contrast in the change of chemical elements content and magnetic characteristics of sedimentary sequence. …”
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    Article
  13. 573

    Natural groundwater quality and health by Salvador Jordana, Eduardo Batista Piera

    Published 2004-01-01
    “…Nearly all natural waters contain traces of most chemical elements but often at extremely low concentrations. …”
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    Article
  14. 574

    Tetrahedral Homonuclear Tetrameric Species: Occurrence, Forms, Structures, Properties, and Perspectives by Rudolf Kiralj

    Published 2024-01-01
    “…Tetrahedral homonuclear tetrameric species are neutral or ionic tetrahedra of chemical elements, true molecular tetrahedra in strict geometrical sense. …”
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  15. 575

    Investigation of Co-Cr-Fe-Mn-Ni Non-Equiatomic High-Entropy Alloy Fabricated by Wire Arc Additive Manufacturing by Kirill Osintsev, Sergey Konovalov, Dmitrii Zaguliaev, Yurii Ivanov, Victor Gromov, Irina Panchenko

    Published 2022-01-01
    “…The phase composition, chemical elements distribution, microstructure, and mechanical properties were investigated. …”
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    Article
  16. 576

    SCANNING TRANSMISSION ELECTRON MICROSCOPY FOR QUANTITATIVE MAPPING OF MACROELEMENT CONTENTS OF CARDIAC TISSUE by A. A. Komisov, O. A. Osipova, R. N. Shepel, O. M. Drapkina, P. G. Osipov, K. G. Plaksina, N. V. Malay

    Published 2016-12-01
    “…Development of semiquantitative and quantitative nondestructing method to analyze the spread of chemical elements in myocardium mass up to 100 mg (autopsy).Material and methods. …”
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    Article
  17. 577

    Features of processing and interpretation of magnetic and lithochemical data while exploring oil and gas fields in Siberian platform conditions (by the example of Imbinskaya gasvbe... by Igor Sobolev, Nikolay Bredikhin, Vitaliy Merkulov, Aleksandr Orekhov

    Published 2019-05-01
    “…Against the background of sedimentary formations the effusive rocks and intrusive bodies of the basic structure are differentiated by sharp differences in magnetic properties and levels of accumulation of some chemical elements. In general, the areas of epigenetic influence of hydrocarbon deposits are characterized by high contrast in the change of chemical elements content and magnetic characteristics of sedimentary sequence. …”
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    Article
  18. 578

    The Influence of DOC on the Migration Forms of Elements and Their Sedimentation from River Waters at an Exploited Diamond Deposit (NW Russia) by Alexander I. Malov, Evgeniya S. Sidkina, Elena V. Cherkasova

    Published 2023-06-01
    “…The role of dissolved organic carbon in the migration of chemical elements and the effect of DOC on the precipitation of chemical elements from mixed solutions is given. …”
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    Article
  19. 579

    Analysis of the mineral composition of hypomineralized first permanent molars by Martinović Brankica, Ivanović Mirjana, Milojković Zoraida, Mladenović Raša

    Published 2015-01-01
    “…Concentration of the main chemical elements, primarily calcium and phosphorus, is significantly reduced in hypomineralized enamel whereas carbon concentration is increased compared to healthy enamel.…”
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  20. 580

    Characteristics and Antibacterial Properties of Film Membrane of Chitosan-Resveratrol for Wound Dressing by Basri A. Gani, Nur Asmah, Cut Soraya, Dharli Syafriza, Sri Rezeki, Muhammad Nazar, Subhaini Jakfar, Nurtami Soedarsono

    Published 2023-05-01
    “…In addition, NCH has chemical elements, Oxygen Weight (69.4%), calcium (19.7%), magnesium (6.6%), and phosphorus (4.3%). …”
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    Article