Başlık için FEF, Fizik Bölümü Koleksiyonu listeleme
Toplam kayıt 321, listelenen: 150-169
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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 ... -
Gamma irradiation and the radiation shielding characteristics: for the lead oxide doped the crosslinked polystyrene-b-polyethyleneglycol block copolymers and the polystyrene-b-polyethyleneglycol-boron nitride nanocomposites
(MDPI, 2021)This work aimed to research the efficiency of gamma irradiation and shielding characteristics on the lead oxide (PbO) doped the crosslinked polystyrene-b-polyethyleneglycol (PS-b-PEG) block copolymers and polystyrene-b-p ... -
Gamma irradiation, thermal conductivity, and phase change tests of the cement-hyperbranched poly amino-ester-block-poly cabrolactone-polyurathane plaster-lead oxide and arsenic oxide composite for development of radiation shielding material
(Wiley, 2021)The work which has been done on cement-polymer composite based shielding materials was comprehensively described in the present article, the choice of the study presented here is based on the choice of the researches. The ... -
Gamma ray and neutron shielding properties of some concrete materials
(Elsevier, 2011)Shielding of gamma-rays and neutrons by 12 concrete samples with and without mineral additives has been studied. The total mass attenuation and linear attenuation coefficients, half-value thicknesses, effective atomic ... -
Gender recognition from PPG signals of people with different blood pressure
(IEEE, 2021)Photoplethysmography (PPG) is an opto-electronic technique that measures the blood volume within micro-vascular tissue. Studies based on measuring blood pressure level with PPG have been widely used. In this study, gender ... -
Gross alpha and beta activities of airborne particulate samples from Wawel Royal Castle Museum in Cracow, Poland
(Springer, 2013)PM-10, PM-2.5 and PM-1.0 concentrations were measured over an 8 h period at sites both inside and outside the museum of Wawel Royal Castle in Cracow, Poland. Gross alpha (alpha) and beta (beta) activities seemed to vary ... -
Growth and characterization of CT(S,Se) thin films and Al/n-Si/p-CT(S,Se)/Mo heterojunction diode application employing a two-stage process
(Elsevier, 2023)Cu2SnS3 (CTS), Cu2Sn(S,Se)3 (CTSSe), and Cu2SnSe3 (CTSe) thin films were deposited on n-type silicon wafer substrates using a two-stage process. This process involved drop-coating Cu-Sn precursors, which is different from ... -
Growth and characterization of Cu2SnS3 (CTS), Cu2SnSe3 (CTSe), and Cu2Sn(S,Se)(3) (CTSSe) thin films using dip-coated Cu-Sn precursor
(Springer, 2019)Ternary compounds Cu2SnS3, Cu2SnSe3 and Cu2Sn(S,Se)(3) thin films used in thin film solar cell applications were prepared at the first time by such a two-stage process that includes dip-coating of Cu-Sn precursors as ... -
Growth of Cu2ZnSnS4 (CZTS) thin films using short sulfurization periods
(Iop Publishing Ltd, 2019)In this study CZTS thin films were grown by a two-stage process that involved sequential sputter deposition of metallic Cu, Zn, and Sn layers on Mo coated glass substrates followed by RTP annealing at 530 and 560 degrees ... -
Health risk assessment of trace elements in medicinal plants consumed as medicine and food in Rize, Turkey
(Parlar Scientific Publications (P S P), 2020)Trace element (Cd, Pb, Ni, Fe, Zn, Cu, Cr, Co and Mn) levels were measured using Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES) in twelve different medicinal plants consumed as medicine and food in Rize, ... -
Heavy metal analysis around Murgul (Artvin) copper mining area of Turkey using moss and soil
(Elsevier, 2012)This research investigates heavy metal pollution around one of the most important mining areas in Turkey, the Murgul mining, by means of analyzing moss and soil samples collected in the neighborhood of the copper mining ... -
Heavy-Ion fusion reaction calculations: Establishing the theoretical frameworks for In-111 Radionuclide over the Coupled Channel Model
(MDPI, 2021)In this work, the production of I111n radionuclide has been investigated theoretically via heavy-ion fusion reactions of two stable nuclei: C37l+G74e, M26g+R85b, S30i+B81r, and C46a+C65u reactions. Fusion cross-sections, ... -
Hierarchical clustering of selected countries according to the variables of population, national income and exports of goods and services
(2021)The changes in the population, gross domestic product (GDP) and exports of goods and services of the 32 countries that we have selected for 25 years have annually been examined. In this study, we use hierarchical ... -
High-field pinning potential in YBCO films with nanoengineered pinning centres
(Springer, 2015)Frequency-dependent AC susceptibility measurements have been used to estimate the critical current densities and pinning potential of two 1.1-mu m-thick YBCO films with nanoengineered pinning centres. the films were grown ... -
Human health risk assessment of heavy metals accumulation in different genders and tissues of whiting fish (Merlangius merlangus euxinus Nordmann, 1840) from Rize, Turkey
(Elsevier, 2024)The contamination of fish resulting from marine pollution is a major concern, as it poses potential adverse effects on human health. Therefore, heavy metal concentrations (Cr, Fe, Ni, Cu, Zn, and Pb) in different genders ... -
Hybrid transparent conductive electrode structure for solar cell application
(Elsevier, 2021)This study draws on our experiences with graphene to perform a hybrid TCO structure composed of AZO and graphene. We first set out to enhance the electrical and optical properties of AZO to enable its use especially in the ...
