Başlık için FEF, Fizik Bölümü Koleksiyonu listeleme
Toplam kayıt 327, listelenen: 72-91
-
Determination of mass attenuation coefficients, effective atomic and electron numbers for some natural minerals
(Elsevier, 2009)The total mass attenuation coefficients (?m) for SiO2 {Quartz (1 1 0 1), Quartz (1 1 0 0) and Quartz (0 0 0 1)}, KAlSi3O8 {Orthoclase (0 1 0), Orthoclase (1 0 0)}, CaSO4·2H2O (gypsum), FeS2 (pyrite) and Mg2Si2O6 (pyroxene) ... -
Determination of natural radioactivity by gross alpha and beta measurements in tap waters in Rize province
(Springer, 2015)The aim of the study to determine the level of gross alpha and beta activity concentrations in tap waters in dwellings of Rize province from North part of Turkey after 27 years from Chernobyl disaster. the activity ... -
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 natural radionuclides and some metal concentrations in human tooth samples in the Rize province, Turkey
(Taylor & Francis Ltd, 2019)The main purpose of this study was to identify the concentrations of naturally occurring radionuclides (Ra-226, Th-232 and K-40) and some metals (Fe, Ni, Cu, Zn, Pb and Cd) in tooth samples collected from humans living in ... -
Determination of optimum Er-doping level to get high transparent and low resistive Cd1-xErxS thin films
(Springer, 2019)Cd1-xErxS (x=0, 0.02, 0.04, 0.06, 0.08 and 0.10) thin films were produced by a chemical route on glass slides. the structural, morphological, optical and electrical properties of the grown samples were studied to obtain ... -
Determination of radioactivity levels and hazards of soil and sediment samples in Fi{dotless}rti{dotless}na Valley (Rize, Turkey)
(Elsevier, 2007)The natural radioactivity levels in soil and sediment samples of Fi{dotless}rti{dotless}na Valley have been determined. To our knowledge, there seems to be no information about radioactivity level in the Fi{dotless}rti{dotless}na ... -
Determination of radioactivity levels and heavy metal concentrations in seawater, sediment and anchovy (Engraulis encrasicolus) from the Black Sea in Rize, Turkey
(Pergamon-Elsevier Science Ltd, 2017)Seawater, sediment and fish (anchovy) samples consumed in the Rize province of the Eastern Black Sea region of Turkey were collected from five different stations. the radioactivity levels (Ra-226, Th-232. K-40 and Cs-137) ... -
Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey
(Ijrr-Iranian Journal Radiation Res, 2016)Background: Turkey, especially the northern part of it, was one of the countries which were contaminated by the Chernobyl accident. Rize is a city located in the Northeastern district of Turkey which was heavily influenced ... -
Determination of radiological hazard parameters in sea snails (Rapana venosa) in the East Black Sea Coast of Turkey
(Pergamon-Elsevier Science Ltd, 2018)The aim of this study was to determine the activity concentrations and radiological hazard parameters of Cs-137 and K-40 in soft tissue samples of sea snails (Rapana venosa) collected from 12 different stations in the East ... -
Determination of the effective atomic numbers and electron densities for YBaCuO superconductor in the range 59.5-136 keV
(Elsevier, 2008)The effective atomic numbers and electron densities of YBa2Cu3O7-? superconductor at 59.5, 65.2, 77.1, 94.6, 122 and 136 keV were calculated by using the measured mass attenuation coefficients. Measurements were made by ... -
Determination of the local structure of CsBi4-xPbxTe6 (x=0, 0.5) by X-ray absorption spectroscopy
(Royal Soc Chemistry, 2016)We have studied the local structure and valence electronic unoccupied states of thermoelectric CsBi4Te6 and superconducting CsBi3.5Pb0.5Te6 (T-c similar to 3 K) by extended X-ray absorption fine structure (EXAFS) and X-ray ... -
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 ... -
Determination of tritium concentrations in humans before the development of a nuclear power plant in Turkey
(Taylor & Francis Ltd, 2015)The most widely used method to determine the level of tritium in humans is testing urine. Tritium concentrations in urine samples of 100 persons aged 18-66 years selected randomly from a pilot region in Turkey were analysed. ... -
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 ... -
Distribution of Cs-137 in the mediterranean mussel (Mytilus galloprovincialis) in Eastern Black Sea Coast of Turkey
(Pergamon-Elsevier Science Ltd, 2016)This study presents the results of Cs-137 and K-40 radionuclide concentrations in mussel (Mytilus galloprovincialis) samples collected during the period of February-November 2014 from twelve different stations within the ... -
Donor binding energies in single ZnCdO/ZnO quantum well
(Elsevier, 2022)The single wurtzite Zn1-xCdxO/ZnO quantum well structure in polar c-direction is studied and the binding energies of an impurity donor atom are obtained. The Schrodinger and Poisson equations are solved self consistently ... -
Dynamic critical phenomena in a multilayer Ising system
(Elsevier, 2020)Using the mixed-spin system, we precisely calculate the dynamic critical phenomena, namely dynamic compensation behaviors, dynamic phase diagrams and dynamic hysteresis loops in a multilayer Ising system that composes of ... -
Dynamic hysteresis and compensation behaviors of the bilayer Blume-Capel model under an oscillating magnetic field
(World Scientific Publ Co Pte Ltd, 2019)Dynamic compensation and hysteresis characteristics of Blume-Capel (BC) model under an oscillating magnetic field have been studied within the dynamic mean field approximation. Spin-1 ferro-antiferromagnetic system Hamiltonian ... -
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 ...