Başlık için FEF, Fizik Bölümü Koleksiyonu listeleme
Toplam kayıt 324, listelenen: 286-305
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Sediment distribution coefficients (K-d) and bioaccumulation factors (BAF) in biota for natural radionuclides in eastern Black Sea coast of Turkey
(Elsevier, 2019)y Germanium (HPGe) detector was used to measure natural (Ra-226, Th-232 K-40) radioactivity levels in sediment and seawater samples, and soft tissues of Mediterranean mussels (Mytilus galloprovincialis) of three different ... -
Selective radiation measurement for safety evaluation on base stations
(Gazi University, 2013)In this paper, general information about unionized radiation, standards and measurement routines for wireless communication systems, electromagnetic fields and antenna structures are given. The safety of mobile phones has ... -
Semi-conductive carbon from industrial tea waste biomass for a p-n junction
(Springer, 2024)Some semiconducting carbonaceous material was developed from industrial tea waste biomass by catalytic pyrolysis and heteroatom doping; then, a p-n junction was realized on an n-type Si substrate. I-V characteristics of ... -
Sequential forward mother wavelet selection method for mental workload assessment on N-back task using photoplethysmography signals
(Elsevier, 2021)The increasing demands of a cognitive task require additional brain resources. This demand, known as mental workload, can lead to deteriorated task performance. Therefore, assessment of mental workload can provide a proper ... -
Simulation and efficiency studies of optical photon transportation and detection with plastic antineutrino detector modules
(Elsevier Science Bv, 2018)In this work, the simulation of optical photons is carried out in an antineutrino detector module consisting of a plastic scintillator connected to light guides and photomultipliers on both ends, which is considered to be ... -
Single-molecule-resolution ultrafast near-field optical microscopy via plasmon lifetime extension
(AIP Publishing, 2021)Metal nanostructures support plasmon oscillations on their surfaces, which normally decay very quickly. Nevertheless, the lifetime of these oscillations can be extended near a longer lifetime particle, e.g., a molecule. ... -
Sipping tests for the irradiated fuel elements of the TR-2 research reactor
(Carl Hanser Verlag, 2011)Sipping tests have been performed for fuel elements of the TR-2 reactor at Çekmece Nuclear Research and Training Center (CNRTC), in order to find out which one failed in the core. A sipping assembly has been constructed ... -
The size effect on the magnetic levitation force of MgB2 bulk superconductors
(Elsevier Sci Ltd, 2016)In this study, the size effect on the magnetic levitation performance of disk-shaped MgB2 bulk superconductors and permanent magnets was investigated. MgB2 samples with varying diameters of 13 mm, 15 mm and 18 mm, each of ... -
Sm-doped CdS thin films prepared by spray pyrolysis: a structural, optical, and electrical examination
(Springer, 2018)Virgin and Sm-doped CdS thin films were prepared by spray pyrolysis route on glass substrates. the influences of Sm-doping amount on structural, topographical, optical and electrical properties were examined. It was found ... -
Sn diffusion coefficient and activation energy determined by way of XRD measurement and evaluation of micromechanical properties of Sn diffused YBa2Cu3O7-x superconducting ceramics
(Springer, 2013)This study manifests not only the effect of Sn diffusion on physical, electrical, mechanical, structural and superconducting properties of the bulk YBa2Cu3O7-x (Y123) superconductors prepared by the conventional solid-state ... -
Spectrum analyzer measurement technique for safety evaluation on wireless communication systems
(IEEE, 2011)In this paper, general information about, unionized radiation, wireless communication systems and electromagnetic fields are given. The safety of mobile phones has been evaluated in terms of specific absorption ratio (SAR). ... -
Structural and optical properties of ZnO and Al-doped ZnO microrods obtained by spray pyrolysis method using different solvents
(Elsevier, 2012)ZnO and Al-doped ZnO microrods were obtained by spray pyrolysis method using different solvents such as methanol and propanol. The effect of the type of solvent in the starting solution on the structural, morphological and ... -
Structural and optical properties of ZnO thin films by the spin coating Sol-Gel method
(Kluwer Academic Publishers, 2011)ZnO thin films were deposited onto glass subsrates by a Sol-gel spin coating method. The structural and optical properties of ZnO thin films were investigated. The molar ratios of the zinc acetate dihydrate to Monoethanolamine ... -
Structural, morphological, optical analyses of Ni-doped CdS thin films and their photovoltaic performance in hybrid solar cells
(Springer, 2020)This work reports influences of variation in Ni-doping on structural, morphological, and optical properties of CdS thin films and in their hybrid solar cell applications. X-ray diffraction data showed that increase of ... -
Study of microwave surface resistance of type-II superconductors carrying transport current
(Wiley, 2011)We investigate the microwave surface resistance of an infinitely long type-II superconductor in the critical state carrying transport DC current, in the absence and in the presence of external magnetic fields. Calculations ... -
The study of superconducting and magnetic properties of bis oxalate (C22H22O6) added bulk MgB2
(Elsevier, 2022)The effect of bis oxalate (C22H22O6) addition on critical current density (J(c)), lattice parameters, microstructure, superconducting temperature (T-c), magnetic levitation force (F-z) and lateral force (F-x) properties ... -
A study of temperature dependent local atomic displacements in a Ba(Fe1-xCox)(2)As-2 superconductor
(Royal Soc Chemistry, 2016)We have studied the local structure of a Ba(Fe1-xCox)(2)As-2 superconductor using temperature dependent extended X-ray absorption fine structure (EXAFS) measurements. Polarized EXAFS at the Fe K-edge on an optimally doped ... -
Study of the hydrothermal crystallization process of barium titanate by means of X-ray mass attenuation coefficient measurements at an energy of 59.54 keV
(Elsevier Science Inc, 2017)In this work, the X-ray mass attenuation coefficients of hydrothermally synthesized barium titanate (BaTiO3) samples were calculated with the purpose of determining the crystallization sequence of BaTiO3. Hydrothermally ... -
A study of the radiological baseline conditions around the planned Sinop (Turkey) nuclear power plant using the mapping method
(Springer, 2019)This study makes a first attempt at a detailed estimation of the background radioactivity level and its distribution at the Sinop nuclear power plant site. the activity concentration levels of Ra-226, Th-232, K-40 and ...
