Güncel Gönderiler: FEF, Fizik Bölümü Koleksiyonu
Toplam kayıt 337, listelenen: 321-337
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A reactor antineutrino detector based on hexagonal scintillator bars
(Elsevier, 2020)This study presents a new concept of segmented antineutrino detector based on hexagonal plastic scintillator bars for detecting antineutrinos from a nuclear reactor core. the choice of hexagonal scintillator bars is original ... -
Cold substrate method to prepare plasmonic Ag nanoparticle: deposition, characterization, application in solar cell
(Springer Heidelberg, 2020)In this study, the surface plasmon effects of the Ag nanoparticle were investigated depending on the substrate temperature and coating time. Deposition procedure for the Ag coating was the vacuum deposition at low substrate ... -
Quantum emitter interacting with graphene coating in the strong-coupling regime
(Amer Physical Soc, 2020)We demonstrate the strong coupling of a quantum dot and a graphene spherical shell coating it. Our simulations are based on solutions of three-dimensional Maxwell equations, using a boundary element method approach. ... -
Density functional theory investigation of oxidation intermediates on gold and gold-silver surfaces
(Amer Chemical Soc, 2020)Gold and gold-silver alloys can be active and selective oxidation catalysts. Previous work has suggested that O-2 dissociation occurs at bimetallic step sites on gold-silver alloys, but the site responsible for the rest ... -
The comparison of levitation and lateral force of bulk and cut-pasted bulk GdBCO samples at different temperatures
(Elsevier Science Sa, 2020)In this work, in the first time, we have investigated the levitation and lateral force properties of bulk and cut-pasted bulk GdBCO samples at different temperatures and different cooling heights (CH) to determine the ... -
Use of the cold substrate method for biomaterials: the dtructural and biological properties of the Ag layers deposited on Ti-6Al-4V
(Springer, 2020)Silver nanofilms were vacuum-deposited on Ti-6Al-4V substrates at low (< 300 K) temperatures to improve their biocompatibility. After the surface of the Ti-6Al-4V samples was coated with Ag over the temperature range from ... -
Effects of silver doping on magnetic levitation performance of MgB2 superconductors
(Elsevier Sci Ltd, 2020)MgB2 bulk samples with the silver contents of 0, 1.5, 3.0, 4.5, 6.0, 9.0 and 12.0 wt% were fabricated at 775 degrees C for 3 h in Ar atmosphere by solid-state reaction method. the structural and electromagnetic properties ... -
Transparent and conductive CdS:Ca thin films for optoelectronic applications
(Springer Heidelberg, 2020)This paper presents the structural, morphological, optical and electrical evolution of Ca-doped CdS thin films. Non-doped and Ca-doped CdS samples with various amounts of Ca atoms (from 0 to 10 at.% with an increasing step ... -
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 ... -
Trapped magnetic field and levitation force properties of multi-seeded YBCO superconductors with different seed distance
(Elsevier Science Sa, 2020)The performance of large grain (RE)BCO superconducting bulks has the significant potential for magnetic-force based applications such as trapped field magnets and magnetic levitation devices. These materials can trap high ... -
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 ... -
The effects of the intense laser field on the resonant tunneling properties of the symmetric triple inverse parabolic barrier double well structure
(Elsevier, 2020)Transmission properties of an electron in the symmetric triple inverse parabolic barrier double well structure have been investigated under the intense laser field. We have found that the laser field has effects on tunneling ... -
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 ... -
A new method for activity monitoring using photoplethysmography signals recorded by wireless sensor
(Springer Heidelberg, 2020)Purpose Different kinds of sensors such as accelerometers and gyroscopes have been used for inferring, predicting, and monitoring human activities for various kinds of applications, including human-computer interaction, ... -
Determination of hypertension disease using chirp z-transform and statistical features of optimal band-pass filtered short-time photoplethysmography signals
(Iop Publishing Ltd, 2020)Hypertension is the condition where the normal blood pressure is high. This situation is manifested by the high pressure of the blood in the vein towards the vessel wall. Hypertension mostly affects the brain, kidneys, ... -
Local structure displacements in La1-xCex OBiSSe as a function of Ce substitution
(Pergamon-Elsevier Science Ltd, 2020)We have investigated the local structure of layered La1-xCexOBiSSe system by Bi L-3 -edge extended X-ray absorption fine structure (EXAFS) measurements for different Ce substitutions. Ce L-3-edge X-ray absorption spectroscopy ... -
Effect of Transport Current on the Pinning Induced Magnetostriction of Type-II Superconductors
(Polish Acad Sciences Inst Physics, 2008)Teorik olarak taşıma akımının ve uygulanan manyetik alanın tip-II süperiletkenlerin manyetostriksiyonu üzerindeki etkisini araştırdık. Bir süperiletken levha örneğinin manyetostriktif tepkisini incelemek için, mevcut ...