Başlık için Fizik Bölümü listeleme
Toplam kayıt 1178, listelenen: 1105-1124
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A theoretical study of substituent effects on tautomerism of 2-hydroxybenzimidazoles
(Springer-Verlag, 2003)The geometries, relative stabilities of some 4(7) and 5(6) substituted 2-hydroxybenzimidazole derivatives were calculated with full geometry optimization using AM1 and PM3 in aqueous phase. With the exception of molecules ... -
Thermal and Photoinduced Control of Relative Populations of 4-Methoxybenzaldehyde (p-Anisaldehyde) Conformers
(American Chemical Society, 2010)Two almost isoenergetic conformers of 4-methoxybenzaldehyde (p-anisaldehyde), O-trans and O-cis, are nearly equally populated in gas phase at room temperature. The existence of these two conformers of similar energy makes ... -
Thermal and SO2 adsorption properties of some clays from Turkey
(Springer, 2011)Thermal and structural properties of three clays (sepiolite and two kaolinites) from Turkey were studied by thermal analysis (TG-DTA), X-ray diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infrared (FT-IR), ... -
Thermal behavior and immersion heats of selected clays from Turkey
(Springer, 2009)Four clays (two bentonites and two kaolinites) from Turkey were investigated by X-ray diffraction (XRD), thermal analysis (DTA/TG-DSC) and surface area measurement techniques. Mineralogically bentonite samples were ... -
Thermal behavior and water adsorption of natural and modified sepiolite having dolomite from Turkey
(Springer, 2008)The water adsorption properties of sepiolite having dolomite supplied from Eskisehir region and their exchanged forms (K+, Na+, Mg2+ and Ca2+) were investigated. The sepiolite samples were characterized using XRD, TG-DTA, ... -
Thermal decomposition of allantoin as probed by matrix isolation FTIR spectroscopy
(Pergamon-Elsevier Science LTD, 2009)The optimized geometries, energies of the possible conformers of allantoin (2,5-dioxo-4-imidazolidinyl urea, the diureide of glyoxylic acid) as well as the barriers for conformational interconversion have been calculated ... -
Thermal, Optical Properties and Structural Investigation of Tm3+ doped TeO2-ZnO-TiO2 Glass System
(E D P Sciences, 2010)Tellurite based infrared glasses in the Tm3+ doped TeO2-ZnO-TiO2 system were prepared and its optical properties and crystallization kinetics investigated by using UV-VIS-NIR spectrophometer and differential thermal analysis ... -
Thermal, structural and ethylene adsorption properties of Ag-, Cu- and Fe-modified bentonite from Turkey
(Springer, 2016)Thermal and structural properties of bentonite from Unye (Turkey) and that of Ag-, Cu-and Fe-modified forms were investigated by differential thermal analysis, thermogravimetric analysis, X-ray diffraction and surface area ... -
Thermally activated flux mechanism in Mg-doped InN epitaxial film
(Taylor & Francis LTD, 2017)The superconducting behaviour of InN has been observed in many experiments where the origin of superconductivity is addressed to presence of (i) In-In chains in ab-plane, (ii) specific carrier density range limited Mott ... -
Thermally stimulated current analysis of Zn1-xCdxO alloy films
(Elsevier Science Sa, 2011)We have studied the structural and electrical properties of Zn1-xCdxO alloy films deposited by ultrasonic spray pyrolysis technique. XRD measurement indicated that pure ZnO and CdO samples had single phases with hexagonal ... -
Thermally stimulated current and space charge limited current mechanism in film of the gold/zinc oxide/gold type
(Elsevier Science BV, 2007)The thermally stimulated current (TSC) and space charge limited current (SCLC) properties of n-type spray pyrolyzed ZnO thin film were investigated using TSC and current-voltage measurements. TSC measurements of the n-type ... -
Thermally stimulated currents in CdS film produced by ultrasonic spray pyrolysis method
(IOP Publishing LTD, 2008)Polycrystalline CdS films have been deposited by ultrasonic spray pyrolysis method. The electrical properties of the sample have been studied by means of an analysis based on the thermally stimulated current (TSC) spectrum ... -
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 ... -
Thioamidoalkylation of 1,3-dicarbonyl compounds, enol silyl ethers, and enamines
(Georg Thieme Verlag Kg, 2007)Novel syntheses of beta-thioamido ketones via thioamidoalkylations of malonates, beta-keto esters, beta-diketones, enol silyl ethers, and enamines with N-(alpha-thioamidoalkyl)benzotriazoles are described. -
Thiocyanate separation by imprinted polymeric systems
(Springer Wien, 2010)Novel polymers for the specific recognition of thiocyanate ion (SCN) have been prepared by template polymerization of SCN with chitosan-Zn(II), the N-(2-aminoethyl)-3-aminopropyl-trimethoxysilan-Zn(II) complex, epichlorohydrin, ... -
Three-color broadband asymmetric quantum well infrared photodetectors in long wavelength infrared range (LWIR)
(Springer, 2010)A theoretical investigation of a GaAs/AlGaAs-material-system-based four quantum well infrared detector structures consisting of ten periods of three asymmetric quantum well units are presented. Each quantum well in the ... -
Time and temperature dependent microbiological and mycotoxin (ochratoxin-A) levels in boza
(Elsevier Science BV, 2009)This study describes the examination of microbiological tests and the determination of OTA in boza temperature and time dependently. Prior to the analysis, physicochemical properties of the boza samples such as moisture, ... -
Topological phase in a non-Hermitian PT symmetric system
(Elsevier Science BV, 2015)In this work, we consider a tight binding lattice with two non-Hermitian impurities. The system is described by a non-Hermitian generalization of the Aubry-Andre model. We show that there exists topologically nontrivial ... -
Trans- and cis-stilbene isolated in cryogenic argon and xenon matrices
(Pergamon-Elsevier Science LTD, 2015)Monomers of trans- (TS) and cis-stilbene (CS) were isolated in cryogenic argon and xenon matrices, and their infrared (IR) spectra were fully assigned and interpreted. The interpretation of the vibrational spectra received ... -
Transfer Hydrogenation of Aryl Ketones with Half-Sandwich RuII Complexes That Contain Chelating Diamines
(Wiley-V C H Verlag GMBH, 2012)In a comparative study, half-sandwich complexes of RuII (1) with pyridine-based chelating diamine [NN = 2-aminomethylpiperidine (ampi), a; 2-aminomethylpyridine (ampy), b; 8-aminoquaniline (aquan), c; 4,4'-dimethyl-2,2'-bipyridine ...
