Başlık için FEF, Fizik Bölümü Koleksiyonu listeleme
Toplam kayıt 327, listelenen: 137-156
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Enhancing magnetic levitation and guidance force and weight efficiency of high-temperature superconducting maglev systems by using sliced bulk YBCO
(Wiley, 2023)We aimed to enhance the magnetic force efficiency of Maglev systems without increasing total weight. For this aim, we divided YBCO bulks into three slices horizontally to utilize the YBCO-permanent magnetic guideway (PMG) ... -
Erratum to: Synthesis and fabrication of Mg-doped ZnO-based dye-sensitized solar cells(J Mater Sci: Mater Electron, (2014), 25, 3173-3178, DOI 10.1007/s10854-014-2000-5)
(Springer, 2014)Abstract Undoped and 2, 4 and 6 at.% Mg-doped ZnO nanorods were successfully deposited on ZnO seeded fluorine tin oxide substrates by a simple chemical bath deposition technique to form a photoanode. It was seen that all ... -
Evaluation and mapping of radioactivity and radiological risks in sediments before the nuclear power plant in Türkiye
(Springer, 2024)The main aim of this study was to investigated background levels of radioisotopes 137Cs (Cesium), 232Th (Thorium), 40K (Potassium), and 226Ra (Radium) in all samples taken from two important rivers of the Sinop province ... -
Evaluation of ecological risk, source, and spatial distribution of some heavy metals in marine sediments in the Middle and Eastern Black Sea region, Turkey
(Springer Heidelberg, 2021)In the present study, the concentration levels of heavy metals such as Mn, Fe, Ni, Cu, Zn, Cr, and Pb in sediment samples collected from 16 sampling locations in the Middle and Eastern Black Sea regions, Turkey, were ... -
Evaluation of gamma attenuation parameters and kerma coefficients of YBaCuO and BiPbSrCaCuO superconductors using EGS4 code
(Pergamon-Elsevier Science Ltd, 2020)The levels of the coefficients of the mass attenuation (mu/rho) for YBaCuO and BiPbSrCaCuO superconductors and their contents were determined theoretically, using EGS4 simulation code and the XCOM database, and experimentally ... -
Evaluation of radioactivity and radiological parameters in soil samples in Isparta, Türkiye
(Elsevier, 2024)In the city centre of Isparta, located in the southwestern part of Türkiye, indoor radon concentrations and gamma dose rate levels were observed above the world and country averages. For this reason, the determination of ... -
Exhaustive theoretical investigation of phonon number alteration, fusion cross sections and barrier distributions for si-30+zr-90,zr-92,zr-94,zr-96 reactions via energy-dependent woods-saxon potential and coupled channel models
(Jagiellonian University Press, 2022)The fusion cross sections and barrier distributions of stable Zr isotope targets 90,92,94,96Zr with 30Si projectile nuclei are investigated theoretically via the Energy-dependent Woods-Saxon Potential (EDWSP) and Coupled ... -
Experimental study on copper uptake capacity in the Mediterranean mussel (Mytilus galloprovincialis)
(Springer Heidelberg, 2016)To investigate the effect of different sizes, sex, and exposure time on Cu uptake capacity, mussels Mytilus galloprovincialis of different shell sizes were exposed to different Cu concentrations in different aquariums. in ... -
Exploration of seasonal metal pollution in Karacaören II Dam Lake sediment samples using X-ray Fluorescence method
(Sivas Cumhuriyet Üniversitesi, 2023)In this study, the seasonal metal pollution of sediment samples taken from twelve distinct notes of the Karacaören II Dam Lake was examined. The quantity of metal in soil samples was determined using energy dispersive ... -
An extended model for coexistence of superconductivity and paramagnetism in high-Tc superconductors
(2008)In the present work, the total magnetization in superconducting state is separated into critical state and paramagnetic components in terms of an H(x)-dependent magnetic flux density. Utilizing this model, we reproduce ... -
Fabrication and characterization of Au/n-ZnO/p-Si/Al sandwich device with Sol-gel spin coating method
(Springer, 2019)ZnO thin films with the n-type properties were obtained on the p-Si substrates for multi-layered sandwich device depositing by sol-gel method. Au and Al were conducted on two side of hetero-junction by PVD technique. From ... -
Fabrication of CdS nanospheres-based hybrid solar cells having increased efficiency
(Springer, 2022)The impact of surface modification through diverse dyes (Eosin-Y, D205, N719 and N3) on structural, morphological, optical, and electrical properties of CdS/P3HT hybrid solar cells is studied. X-ray diffraction (XRD) pattern ... -
Fabrication of gold thin films on cooled glass substrates
(Springer, 2024)In this article, gold (Au) thin films were fabricated on glass substrates under vacuum conditions (4.5 x 10(-6) Torr) within a temperature range of 100-300 K, incrementing in steps of 50 K. Analyses through Field Emission ... -
Facile synthesis and characterization of CdS thin films doped by yttrium atoms
(Springer, 2023)A facile preparation and structural, optical and electrical characterization of undoped and Y-doped CdS thin films are demonstrated through spray pyrolysis changing doping concentration of yttrium atoms in CdS structure. ... -
The fine spectral tuning of plasmon mode and quantum emitter coupling and its comparison with the dark-hot resonances
(Scientific Technical Research Council Turkey - TUBİTAK, 2022)Localization of incident fields into very small volumes (hot-spots) allows strong light-matter interactions at the hot spots. This makes path interference effects, Fano resonances, visible. Fano resonances can appear due ... -
First-principles investigation of CO and CO2 adsorption on gamma-Al2O3 supported monoatomic and diatomic Pt clusters
(Elsevier, 2020)Supported clusters of transition metal atoms are key components of heterogeneous catalysts. Understanding their interaction with small molecular species is therefore an important step in catalyst design. in this work, we ... -
First-principles study of coupled effect of ripplocations and S-vacancies in MoS2
(Amer Inst Physics, 2019)Recent experiments have revealed ripplocations, atomic-scale ripplelike defects on samples of MoS2 flakes. We use quantum mechanical calculations based on density functional theory to study the effect of ripplocations on ... -
Formaldehyde selectivity in methanol partial oxidation on silver: effect of reactive oxygen species, surface reconstruction, and stability of intermediates
(Amer Chemical Soc., 2021)Selective oxidation reactions on heterogeneous silver catalysts are essential for the mass production of numerous industrial commodity chemicals. However, the nature of active oxygen species in such reactions is still ... -
Fuzzy logic controlled buck-boost DC-DC converter for solar energy-battery system
(IEEE, 2011)In this paper, a Fuzzy Logic Controlled (FLC) buck-boost DC-DC converter for solar energy-battery systems is presented. General design of a fuzzy logic controller (FLC), based on Matlab/Simulink is performed. This design ... -
Gadolinium diffusion-doping for enhancing activation energy in superconducting YBa2Cu3O7-x
(Elsevier, 2008)The resistance transitions of Gd-diffused polycrystalline Y123 samples have been measured as a function of temperature and magnetic field. It is deduced from experimental results that the activation energy increases when ...
