Showing 661 - 680 results of 1,272 for search '"chemical element"', query time: 0.16s Refine Results
  1. 661

    Mineralogical and geochemical features of the bazhenov formation, West Siberia, according to nuclear-physics and electron-microscopic methods of research by Leonid Rikhvanov, Dmitry Usoltsev, Sergey Ilenok, Alexandra Ezhova

    Published 2019-05-01
    “…The correlations between chemical elements shows two alternative geochemical associations: «clastophile» (Na, Sc, Cr, Rb, Cs, La, Sm, Hf) - elements related to Th and Ta (the usual components of terrigenous mineral fraction), and «organophile» (Zn, As, Sb, Ba, Au, U) - elements related to the organic matter. …”
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    Article
  2. 662

    Penelitian Pendahuluan Mutu Air Hujan Di Kotamadya Yogyakarta = Rain Water Quality in Yogyakarta Municipality A Preliminary Study by Perpustakaan UGM, i-lib

    Published 1988
    “…The samples have been analyzed on major chemical elements and the general physical characteristics. …”
    Article
  3. 663

    Fuels, power and chemical periodicity by Yao, B, Kuznetsov, V, Xiao, T, Jie, X, Gonzales-Cortes, S, Dilworth, J, Almegren, H, Alshihri, S, Edwards, PP

    Published 2020
    “…We review the properties of the chemical elements, overlaid with trends in the periodic table, which can help explain the historical—and present—dominance of hydrocarbons as fuels for power generation. …”
    Journal article
  4. 664

    Peculiar properties of methods for obtaining amorphous nanofilms for creating gas-sensitive sensors under the action of laser double pulses on the surface of a target containing ti... by A.P. Zajogin, N.H. Trinh, M.A. Malets, M.P. Patapovich

    Published 2022-12-01
    “…The performed spectroscopic studies of the laser plasma formed by the action of two successive pulses on a target illustrate the development of methods for obtaining nanoclusters of various chemical elements. This method can be used to obtain nanofilms of not only pure metals, but also composite alloys. …”
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    Article
  5. 665

    The Origin of the Large Magellanic Cloud Globular Cluster NGC 2005 by Andrés E. Piatti, Yutaka Hirai

    Published 2023-01-01
    “…We here provide additional arguments from which we conclude that is also fairly plausible an in situ origin of NGC 2005, based on the abundance spread of a variety of chemical elements measured in dwarf galaxies, their minimum mass in order to form globular clusters, the globular cluster formation imprints kept in their kinematics, and the recent modeling showing that explosions of supernovae are responsible for the observed chemical abundance spread in dwarf galaxies. …”
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    Article
  6. 666

    Influence of the elemental composition of water and soil on the environmental portrait of teenagers in Khabarovsky Kray by Alena O. Nesterenko, Galina P. Evseeva, Ekaterina D. Tselikh

    Published 2023-12-01
    “…In this regard, the assessment of the ecological state of the environment and the analysis of the content of chemical elements in the hair, reflecting the duration and nature of their entry into the organism, is of particular relevance.…”
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  7. 667

    IODINE DEFICIENCY IN AGRICULTURAL LANDSCAPES OF THE BRYANSK REGION by E M Korobova, V U Beryozkin, L I Kolmykova, N V Korsakova, L V Krigman

    Published 2016-12-01
    “…One of the results is different contents of iodine in potatoes and soils of landscapes of the three classes of water migration due to differences in the type of parent rocks and by class of water migration of chemical elements in soils. It is confirmed, that in typical landscapes of the H+-Ca2+ class there are highest content of iodine in soil, water and potatoes.…”
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    Article
  8. 668

    Preliminary studies on electron beam irradiation as a treatment method of radioactive oil sludge by Ana Paula Gimenes Tessaro, Roberto Vicente, Júlio Takehiro Marumo, Antonio Carlos Silva Costa Teixeira, Leandro Goulart de Araujo

    Published 2021-04-01
    “…Characterization methods were employed to identify the chemical elements present in the waste. Radiometric analysis was performed to identify radionuclides and measure dose rates. …”
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    Article
  9. 669

    Discrimination of Tunisian Honey by Mineral and Trace Element Chemometrics Profiling by Giuseppa Di Bella, Angela Giorgia Potortì, Asma Beltifa, Hedi Ben Mansour, Vincenzo Nava, Vincenzo Lo Turco

    Published 2021-03-01
    “…The concentrations of 19 chemical elements have been determined in 36 honey samples of different botanical (wildflower, eucalyptus, eucalyptus red flowers, prickly pears, lemon blossom, thyme, almond, rosemary and jujube) honeys from the three geographical areas of Tunisia (Sidi Bouzid, Nabeul and Sfax) using inductively coupled plasma mass spectrometry (ICP-MS). …”
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  10. 670

    COMPOSITION OF CHEMICAL INGREDIENTS IN SUGARCANE BAGASSE ASH WITH VARIATION OF FINAL CALCINATION TEMPERATURE by Anisah, Lucas Letournel, Aulia Mufti Salsabila, Yusrina Luthfiana, Nurul Anisa

    Published 2023-05-01
    “…This research was conducted to determine the content of chemical elements contained in bagasse ash which is suspected to have chemical content similarities with cement. …”
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    Article
  11. 671

    Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product by Vladimir S. Tsepelev, Yuri N. Starodubtsev

    Published 2021-01-01
    “…The review is devoted to the analysis of physical processes occurring at different stages of production and application of nanocrystalline soft magnetic materials based on Fe–Si–B doped with various chemical elements. The temperature dependences of the kinematic viscosity showed that above a critical temperature, the viscosity of multicomponent melts at the cooling stage does not coincide with the viscosity at the heating stage. …”
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  12. 672

    Protons Interaction with Nomex Target: Secondary Radiation from a Monte Carlo Simulation with Geant4 by Filomena Loffredo, Emanuele Vardaci, Davide Bianco, Antonio Di Nitto, Maria Quarto

    Published 2022-03-01
    “…We observed the production of ions of masses and charges lower than the chemical elements that make up Nomex, and also a significant production of neutrons, protons, and 𝛼 particles.…”
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    Article
  13. 673

    Characteristics of Cr-B Coatings Produced on Vanadis<sup>®</sup> 6 Tool Steel Using Laser Processing by Aneta Bartkowska

    Published 2021-05-01
    “…The main purpose of the study was to determine the impact of those chemical elements on surface properties. Chromium and boron as well as their mixtures were prepared in various proportions and then were applied on steel substrate in the form of precoat of 100 µm thickness. …”
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    Article
  14. 674

    Dielectric and microwave properties of ceramics of the Bi-Ti-O system by Sauchuk Halina, Yurkevich Natallia, Akhmedov Abduraxman, Khudoyberganov Sardorbek, Kayumov Sayfulla, Berdiyarov Ulmasbek

    Published 2023-01-01
    “…In order to obtain dielectric materials with high stability of temperature coefficient of resonance frequency, high values of dielectric permittivity and quality factor modification of ceramics by chemical elements with different valence and ionic radii was performed. …”
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  15. 675

    Geochemical barriers as forms of geosystems’ self-organization by Alexander Petrovich Khaustov

    Published 2017-12-01
    “…It is leading to transformation of atomic molecular structures, chemical associations and separate chemical elements under the influence of the active medium (processes). …”
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  16. 676

    Perturbed and Unperturbed: Analyzing the Conservatively Perturbed Equilibrium (Linear Case) by Yiming Xi, Xinquan Liu, Denis Constales, Gregory S. Yablonsky

    Published 2020-10-01
    “…Contrary to traditional chemical relaxation procedures, in CPE experiments only some initial concentrations are modified; other conditions, including the total amount of chemical elements and temperature are kept unchanged. Generally, for “unperturbed” species with initial concentrations equal to their corresponding equilibrium concentrations, unavoidable extreme values are observed during relaxation to the equilibrium. …”
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  17. 677

    Neutrino fast flavor instability in three dimensions for a neutron star merger by Evan Grohs, Sherwood Richers, Sean M. Couch, Francois Foucart, James P. Kneller, G.C. McLaughlin

    Published 2023-11-01
    “…Following the electron flavor evolution of the neutrino system is essential for calculating the thermodynamics of compact objects as well as the chemical elements they produce. Accurately accounting for flavor transformation in these environments is challenging for a number of reasons, including the large number of neutrinos involved, the small spatial scale of the oscillation, and the nonlinearity of the system. …”
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    Article
  18. 678

    Groundwater Quality in the Vicinity of an Abandoned Mining Site – The M'fis Mine, Southeast of Morocco by Mohamed Abdellaoui, Abdelali Abdaoui, Fadila Boukhoubza, Ali Ait Boughrous

    Published 2023-08-01
    “…In addition, the characterization of the tailings shows the presence of sulfides and other chemical elements, constituting the main source of pollution. …”
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    Article
  19. 679

    Assessment of heavy metals space-temporal evolution in protected areas from Romania. Case studies. by Bogdan Stanescu, Adriana Cuciureanu, Ileana Crina Nicolescu, Marian Gabriel Gasnac, Georgiana Cernica

    Published 2022-12-01
    “…Good knowledge of the concentrations of chemical elements in soil in some geographical regions is fundamental to understanding the pre-existing natural background, on top of which the anthropogenic input is added, especially through pollution. …”
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    Article
  20. 680

    Recovery of vanadium contained in spent catalysts from the Patricio Lumumba Factory through aluminothermy by Lorenzo Perdomo-González, Rafael Quintana-Puchol, Manuel Rodríguez-Pérez, Dayana Rabassa-Rabassa, Amado Cruz-Crespo

    Published 2021-10-01
    “…This research studies the recovery of vanadium and other chemical elements, contained in industrial spent catalysts at Patricio Lumumba Factory in Pinar del Río. …”
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    Article