Güncel Gönderiler: Fen Fakültesi
Toplam kayıt 2379, listelenen: 1421-1440
-
Quantum chemical studies on some 1,2,4-triarylsubstituted imidazoles
(Elsevier Science BV, 2002)The geometries, proton affinities and thermodynamic properties of some 1,2,4-triarylsubstituted imidazole derivatives were calculated with full geometry optimization using AM1 and PM3 methods in aqueous phase. A possible ... -
Synergistic Effect of Lithium Perchlorate and Sodium Hydroxide in the Preparation of Electrochemically Treated Pencil Graphite Electrodes for Selective and Sensitive Bisphenol A Detection in Water Samples
(Wiley-V C H Verlag GMBH, 2014)In this study, pencil graphite electrodes were activated electrochemically in the presence of different supporting electrolytes and used for the selective and sensitive determination of bisphenol A (BPA) in water samples. ... -
Unusual Very Strong O-H center dot center dot center dot O Hydrogen Bonding in Zinc Complex: Crystal Structure and Photoluminescence of [Zn(HL)(bpy)(2)(H2O)](2)(L) (L = O2C(CF2)(6)CO2, bpy = 2,2 ' bipyridine)
(Springer/Plenum Publishers, 2012)The centrosymmetric dimer zinc compound, [Zn(HL)(bpy)(2)(H2O)](2)(L), (L = O2C(CF2)(6)CO2, bpy = 2,2'-bipyridine), was obtained through the reaction of Zn(ClO4)(2)center dot 6H(2)O, bpy and perfluorosuberic acid. Zn(II) ... -
Electrodeposited SnS film for photovoltaic applications
(Pergamon-Elsevier Science LTD, 2014)SnS film has been produced by electrodeposition technique onto ITO (indium-tin-oxide) coated glass substrates using aqueous solution containing SnCl2 and Na2S2O3. The pH of the solution was adjusted to 1.8 by drop-wise ... -
Effects of fluorine doping on the structural properties of the CdO films deposited by ultrasonic spray pyrolysis
(Elsevier Science BV, 2007)The fluorine doped cadmium oxide samples have been deposited at 250 degrees C by ultrasonic spray pyrolysis method. X-ray diffraction patterns of the CdO:F samples have revealed that the samples are polycrystalline with ... -
Electrical and photovoltaic properties of heterojunction diode based on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(Edp Sciences S A, 2012)n-Si/p-PEDOT-PSS heterojunction diode was fabricated by deposition of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) onto n-type Si wafer using spin coating. Its electrical properties of the diode were ... -
Pseudo PT symmetric lattice
(Springer, 2015)We study pseudo PT symmetry for a tight binding lattice with a general form of the modulation. Using high-frequency Floquet method, we show that the critical non-Hermitian degree for the reality of the spectrum can be ... -
Critical trap aspect ratios for dipolar BEC
(Springer, 2011)We show that there exists critical trap aspect ratios for a trapped Bose-Einstein condensate with dipole-dipole interactions. We discuss the role of critical trap aspect ratios on both the critical angular velocity above ... -
An exact treatment for the BEC with three-body recombination and time-dependent scattering length
(Academic Press Inc Elsevier Science, 2007)In this study, Gross-Pitaevskii (GP) equation with three-body recombination and with a time-dependent scattering length is investigated. It is shown that GP equation admits an exact solution for a special choice of the ... -
Thermally stimulated currents in ZnS sandwich structure deposited by spray pyrolysis
(Elsevier Science BV, 2007)Polycrystalline ZnS semiconducting films have been prepared in sandwich configuration by spray pyrolysis technique using ZnO-coated glass substrates and mixed aqueous solutions of ZnCl2 and thiourea. The sandwich structures ... -
Complex quaternionic reformulation of the relativistic elastic collision problem
(IOP Publishing LTD, 2007)An alternative representational method is proposed for the investigation of relativistic elastic collision. Although using four vectors is a common way to represent relativistic quantities, complex quaternionic representation ... -
Matrix realization of dual quaternionic electromagnetism
(Versita, 2007)In this paper, a new representational model based on dual quaternionic matrices is proposed for classical electromagnetism. After demonstrating the isomorphic matrix representations of dual quaternions, Maxwell's equations ... -
Electrical and optical properties of fluorine-doped CdO films deposited by ultrasonic spray pyrolysis
(Elsevier Science BV, 2007)The CdO:F samples have been deposited onto microscope glass substrates at 250 degrees C by ultrasonic spray pyrolysis method. With the incorporation of fluorine into CdO, the direct optical transition has shifted towards ... -
Optical properties of CdxZn((1-x))O films deposited by ultrasonic spray pyrolysis method
(Elsevier Science Sa, 2007)CdxZn(1-x)O (x=0, 0.59, 0.78 and 1) films have been produced by ultrasonic spray pyrolysis technique using aqueous solutions of CdCl2 H2O and ZnCl2 on the microscope glass substrate between 325 and 400 degrees C. The ... -
Some structural properties of CdO : F films produced by ultrasonic spray pyrolysis method
(Elsevier Science Sa, 2007)The fluorine doped cadmium oxide (CdO:F) samples have been deposited at 250 degrees C by ultrasonic spray pyrolysis method. Cadmiumacetatdihydrat and ammonium fluoride have been taken as a source of cadmium and fluorine-dopant ... -
Electrical properties of ZnO/Au/ZnS/Au films deposited by ultrasonic spray pyrolysis
(Elsevier Science Sa, 2007)Polycrystalline ZnS semiconducting films have been prepared by ultrasonic spray pyrolysis technique in the form of planar and sandwich configurations using amorphous and ZnO coated glass substrates. Deposition of ZnS films ... -
Scattering from a PT symmetric standing wave
(Elsevier, 2012)We study the Kapitza-Dirac diffraction of a free beam particle in the presence of a PT symmetric standing wave. We discuss that the momentum and total probability are not conserved in the non-Hermitian scattering process. ... -
Fast frictionless expansion of an optical lattice
(Elsevier Science BV, 2012)We investigate fast frictionless expansion of an optical lattice with dynamically variable spacing (accordion lattice). We design an expansion trajectory that yields a final state identical to the initial state up to an ... -
Bright soliton in an expulsive potential in a dipolar condensate
(Elsevier Science BV, 2011)We study the stability of matter-wave bright solitons for a dipolar Bose-Einstein condensate in a harmonic potential which is transversely attractive and longitudinally expulsive. We map the regimes of stability as a ... -
Absorption and emission processes in noncommutative space
(World Scientific Publ Co Pte LTD, 2006)Atom-field interaction and absorption, emission of photons in noncommutative space are investigated. We calculate the rate and the directional distribution of the radiation. The modified selection rules which govern allowed ...
