Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 1058, listelenen: 261-280
-
Validated capillary electrophoresis study for the determination of cetirizine in pharmaceutical forms
(Taylor & Francis Inc, 2006)A capillary electrophoretic method for the determination of cetirizine is described in this study. The method was developed by using a running buffer consisting of 10 mM of 10% methanol with pH 8.5, employing a fused silica ... -
2,2 ',3,4-Tetrahydroxy-3 '-sulpho-5 '-nitroazobenzene for spectrophotometric determination of aluminium in pharmaceutical suspensions and granite
(Elsevier Science BV, 2005)A selective and sensitive new spectrophotometric method has been developed for the determination of aluminium.2,2',3,4-Tetrahydroxyy-3'-sulpho-5'-nitroaobenzene (tetrahydroxyazon SN) formed an orange chelate with aluminium ... -
A study on the pyrazoles: tautomerism, conformation, acidity, and basicity by means of AM1 semiempirical method in the gas and aqueous solution
(Elsevier Science BV, 1999)A comprehensive theoretical study of some pyrazolones and their fixed model compounds is presented. The tautomeric equilibrium and acidity constants of these compounds have been investigated both in the gas and aqueous ... -
Negative mass solitons in gravity
(American Physical Soc, 2006)We first reconstruct the conserved (Abbott-Deser) charges in the spin-connection formalism of gravity for asymptotically (Anti)-de Sitter spaces, and then compute the masses of the AdS soliton and the recently found ... -
Adsorption behavior of a disperse dye on polyester in supercritical carbon dioxide
(Elsevier Science BV, 2005)In order to understand the adsorption behavior of the dyeing of polyester fibres in supercritical carbon dioxide at 95 degrees C and 300 bar, the rate of dyeing and the equilibrium adsorption of a disperse dye, C.I. Disperse ... -
Gravitational charges of transverse asymptotically AdS spacetimes
(American Physical Soc, 2006)Using Killing-Yano symmetries, we construct conserved charges of spacetimes that asymptotically approach to the flat or anti-de Sitter spaces only in certain directions. In D dimensions, this allows one to define gravitational ... -
Biomimetic catalysis of an organophosphate by molecularly surface imprinted polymers
(Elsevier Science BV, 2005)A synthetic polymer selective for paraoxon was prepared by a molecular surface imprinting technique. We have combined molecular imprinting with the ability of histidine to chelate metal ions to create active centrum of ... -
Intersubband electron transition across a staircase potential containing quantum wells: light emission
(Academic Press LTD Elsevier Science LTD, 2005)We present a theoretical investigation of a novel staircase-like light emitter based on the GaAs/GaxAl1-xAs material system. The emission wavelength is around 12 mum. The device operation is based on the intersubband ... -
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) ... -
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 ...
