Browsing FEF, Fizik Bölümü Koleksiyonu by Access Type "info:eu-repo/semantics/openAccess"
Now showing items 1-20 of 68
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Ab initio atomistic thermodynamics modeling of adsorption of oxygen on gold and gold-silver surfaces
(2019)A theoretical study of oxygen adsorption on gold and gold-silver surfaces by means of density functional theory (DFT) calculations with an atomistic thermodynamic model is performed. The (111) and (211) facets of gold and ... -
Accumulation of metals in roadside soil, dust and pine needles in different characteristic traffic areas
(Parlar Scientific Publications (P S P), 2014)Heavy metal levels and sources of contamination were investigated in different roadside locations from Ankara and Bursa metropolitan cities in Turkey. A state of the art energy dispersive X-ray fluorescence (EDXRF) ... -
Analysis of CeO2/SiO2 double-layer thin film stack with antireflection effect for silicon solar cells
(Springer, 2024)This study introduces CeO2/SiO2 double-layer film stacks and its antireflection coating effect. Optical properties were analyzed by spectrophotometer measurements; surface morphology and cross-sections were observed by ... -
Angular distributions of protons scattered by Ar40 nuclei with excitation of the 2+(1.46 MeV) and 3-(3.68 MeV) collective levels for incident energies of 25.1, 32.5, and 40.7 MeV
(American Physical Society, 2007)Elastic and inelastic scattering of unpolarized and polarized protons by Ar40 nuclei for incident energies between 20 and 50 MeV has been studied by reanalyzing experimental scattering spectra for the 2+(1.46 MeV) and ... -
Anisotropic local structure of SrFe2-xNixAs2 (x=0.00, 0.16, and 0.23) superconductor probed by polarized X-ray absorption fine structure measurements
(MDPI, 2024)We have investigated the effect of the Ni substitution on the local structure and the valence electronic states of the SrFe2-xNixAs2 (x = 0.00, 0.16, and 0.23) superconductor with a multi-edge extended X-ray absorption ... -
Anomalous ferromagnetic behaviour of Y2O3 and CuO nanoparticles in YBa2Cu3Oy superconductor
(Institute of Physics Publishing, 2009)Anomalous ferromagnetic behaviour of the Y2O3 and CuO components in YBa2Cu3Oy (Y123) was observed after severe reduction of particle size. The particle size reduction was performed in following way: Y2O3, BaCO3 and CuO ... -
A atudy on hydrothermal grown CdS nanospheres: effects of Cd/S molar ratio
(2019)The study reports the influences of altering of Cd/S molar ratio on some physical properties of hydrothermal grown CdS nanospheres. Cd/S molar ratios were chosen as 1:0.5, 1:1, 1:2, 1:3 and 1:4 in the stock solution. X-ray ... -
Bazı seramiklerin düşük enerjili gamalar için radyasyon soğurma kapasitelerinin belirlenmesi
(TUBITAK, 2021)İnsanların çoğu zamanını binaların (ev, ofis, okul, avm vs.) içerisinde geçirdiği göz önünde bulundurulduğunda yapı malzemelerinin radyasyon tutuculuk özelliklerinin önemli olduğu görülür. Bu bağlamda binalarda sıkça ... -
Characterization of Cu(In,Ga)(Te,S)(2) thin films grown on stainless steel foil substratesIo
(IOP Publishing, 2023)In this study, Cu(In,Ga)(Te,S)(2) (CIGTS) thin films with [Ga]/([In] +/- [Ga]) atomic ratios in the ranges of 0.22-0.28 and 0.50-0.67 were fabricated using a two-stage technique. During the first stage of the technique, ... -
Comparative study of heavy metal concentration in eggs originating from industrial poultry farms and free-ange hens in Kosovo
(Hindawi, 2021)The aim of the present study was to determine the most significant heavy metal concentration in hen eggs, in particular to compare the heavy metal concentration in eggs originating from industrial poultry farms versus ... -
Comparison of alternating-current losses in two-layer superconducting cables constructed by shell-type and solid-core cylindrical wires
(Springer International Publishing, 2014)Alternating-current losses in two-layer power transmission cables of type-II superconducting wires with cylindrical geometry are numerically investigated with regard to wire cross section. Losses in shell-type and solid-core ... -
Comparison of elemental analysis for different kind of papers by using energy dispersive X-ray spectrometer
(Chemical Publishing Co., 2017)In this study, comparative analyses of different 27 brand papers widely used in Turkey as ashes of paper in the form of pellets. The white paper and photocopied paper have been analyzed by using the energy dispersive X-ray ... -
Concentrations of metal residues in domestically produced and imported milk in Kosovo
(South African Journal of Animal Sciences, 2021)The aim of this study was to investigate the concentration of metal residues in cows??? milk and the health risks to humans from its consumption. In total 37 milk samples were analysed, namely 32 raw milk samples from ... -
Determination of heavy metal levels in some moss samples collected from near the highways in Burdur province
(Çankırı Karatekin Üniversitesi, 2021)The main sources of atmospheric heavy metals deposition are agricultural activities, fossil fuels, central heating stations and the exhaust gases of motor vehicles. In this study, the total of 29 mosses samples were ... -
Determination of natural radioactivity levels and gamma radiation attenuation coefficients in propolis samples and the study of its antioxidant properties
(Walter de Gruyter Gmbh, 2020)Thanks to its rich content, propolis has been used to protect the hive from all kinds of external influences and for disinfection by bees. Furthermore, it is an important marker for monitoring environmental pollution because ... -
Determination of natural radioactivity levels of some concretes and mineral admixtures in Turkey
(Asian Journal of Chemistry, 2014)Nine concrete samples with or without mineral admixtures have been analyzed for their naturally occurring radionuclide of Ra-226, Th-232 and K-40 using HPGe gamma spectrometry. Also, concrete raw materials such as aggregate, ... -
Determination of trace elements in ashes of milk samples by using XRF technique
(Chemical Publishing Co., 2013)Energy dispersive X-ray fluorescence system has been used to determine the heavy metal ions present in cow's milk. Samples have been collected from farm and markets within the border of Kahramanmaras province, Turkey. An ... -
Differential inelastic scattering cross-section of silicon and gallium arsenide semiconductor crystals
(Chemical Publishing Co., 2016)Because of the extensive usage of silicon and gallium arsenide semiconductor crystals, the differential inelastic scattering cross-sections at 59.5 keV have been measured for various scattering angles changing from 120 to ... -
Dynamic hysteresis curves in a mixed spin ternary alloy system under the time-dependent magnetic field
(Institute of Physics, 2023)The dynamic hysteresis features in mixed spins- (1/2,3/2,5/2) ternary alloy system with formula ABpC(1-p) was examined through Glauber-type stochastic dynamic and mean-field theory. The system includes two interpenetrating ... -
Ecological structure: production of organic impregnation material from mussel shell and combustion
(Assc Brasil Polimeros, 2022)In the research, sea mussel shell (Chamelea gallina) powders were impregnated on the samples of Eastern spruce (Picea orientalis (L.) Link.) and Anatolian chestnut (Castanea sativa Mill.) by dipping method at different ...