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Now showing items 1541-1550 of 1667
Implementation of neural networks for classification of moss and lichen samples on the basis of gamma-ray spectrometric analysis
(Environmental Monitoring and Assessment, 2007)
Mosses and lichens have an important role in biomonitoring. The objective of this study is to develop a neural network model to classify these plants according to geographical origin. A three-layer feed-forward neural ...
Influence of hematite nanorods on the mechanical properties of epoxy resin
(Journal of the Serbian Chemical Society, 2017)
The mechanical properties of nanocomposites obtained by incorporation of fairly uniform hematite nanorods (alpha-Fe2O3 NRs) into epoxy resin were studied as a function of the content of the inorganic phase. A thorough ...
Ab initio study of electronic and optical properties of Fe doped anatase TiO2 (101) surface
(Computational and Theoretical Chemistry, 2017)
In this paper we investigated the effects of Fe-doping of the anatase TiO2 (1 0 1) surface on the crystal structure, electronic and optical properties, and impurity formation energy by means of density functional theory ...
Physicochemical, Mineralogical and Radiological Properties of Red Mud Samples as Secondary Raw Materials
(Nuclear technology and radiation protection, 2017)
The main goal of the presented research was the preliminary investigation of possibility of red mud - Hungarian dump sites Almasfuzito (sample A) and Ajka (sample B) - application as a pigment or as a raw material for use ...
TiO2 From Colloidal Dispersion as Support in Pt/TiO2 Nanocomposite for Electrochemical Applications
(Croatica Chemica Acta, 2017)
TiO2 powder was synthesized by a forced hydrolysis process and used for the synthesis of Pt/TiO2 composite that is to be foreseen as an advanced electrode material. Pt was incorporated into the synthesized TiO2 from a Pt ...
Optical properties of titanium oxide films obtained by cathodic arc plasma deposition
(Plasma Science and Technology, 2017)
Structural and optical properties of nanometric titanium oxide (TixOy) films obtained by cathodic arc plasma deposition were investigated. Phase analysis by x-ray diffraction and Fourier-transform infrared spectroscopy ...
Ionization energies of the non-stoichiometric LinFn-1 (n=3, 4, 6) clusters
(Vacuum, 2008)
Ionization energies of non-stoichiometric LinFn-1 (n =3,4, 6) clusters determined by a thermal ionization mass spectrometry (TIMS) were 4.2 +/- 0.2 eV for Li3F2, 4.3 +/- 0.2 eV for Li4F3 and 4.1 +/- 0.2 eV for Li6F5. The ...
Effect of steroid hormone deprivation on the expression of ecto-ATPase in distinct brain regions of female rats
(Physiological Research, 2000)
Abundant evidence indicates that ATP and adenosine act as neurotransmitters or co-transmitters, influencing nerve cell physiology in various ways. Therefore, regulation of ATP-metabolizing enzymes is essential for the ...
TIMS and MALDI TOF of endohedral Li-n"C-70 (n=1-3) metallofullerenes
(Journal of Optoelectronics and Advanced Materials, 2008)
Using the ion implantation technique (introducing negatively charged fullerene into a low temperature lithium plasma column by a strong axial magnetic field) endohedral fullerenes Li"C-70, Li-2"C-70 and Li-3"C-70 were ...
Y3Al5O12:Re3+ (Re=Ce, Eu, and Sm) Nanocrystalline Powders Prepared by Modified Glycine Combustion Method
(Science of Sintering, 2014)
Yttrium aluminum garnet doped with rare earth ions (Ce3+, Eu3+ and Sm3+) was prepared by modified glycine method. Ce3+ as a dopant was used in four different concentrations (Y3-xCexAl5O12; x(%) = 1, 2, 3, 5), while doping ...