Başlık için Fizik Bölümü listeleme
Toplam kayıt 1178, listelenen: 1121-1140
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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 ... -
The transport properties of Dirac fermions in chemical vapour-deposited single-layer graphene
(Taylor & Francis LTD, 2017)The electronic transport properties of Dirac fermions in chemical vapour-deposited single-layer epitaxial graphene on an SiO2/Si substrate have been investigated using the Shubnikov-de Haas (SdH) oscillations technique. ... -
A Tridentate In Situ Generated Ligand Leading the Self-Assembly of a Transition Metal Coordination Polymer: Solvothermal Synthesis and Structural Characterization of 1D Cadmium Pyridine-2-Carboxylate
(Taylor & Francis Inc, 2015)This work involves the synthesis and characterization of a transition metal based one-dimensional coordination polymer, [Cd-2(2-pc)(4)](n), (2-pc D pyridine-2-carboxylate), which is the first example of a Cd-pyridin-2-carboxylate ... -
Tunable long-wavelength broad band asymmetric quantum well infrared photodetector
(IOP Publishing LTD, 2007)We present a theoretical investigation of a GaAs/AlGaAs infrared detector consisting of three asymmetric quantum wells. Each well is designed to yield absorption and a photoresponse at peak wavelengths of 8.2 mu m, 9.5 mu ... -
Turbidity Removal from Wastewaters of Natural Stone Processing by Coagulation/Flocculation Methods
(Wiley-V C H Verlag GMBH, 2009)The effectiveness of coagulation (at pH values of 6, 7.5, and 9), flocculation (at pH 9), and coagulation plus flocculation (at pH 9) on turbidity removal from natural stone (travertine) processing wastewaters (NSPW) were ... -
The two Bis(4-aminosalicylato-O) bis(N,N-dimethylethylenediamine)Ni(II) complexes
(Walter De Gruyter GMBH, 2012)The two complexes of Bis(4-aminosalicylato-O) bis(N,N-dimethylethylenediamine)Ni(II) with different colors, were synthesized by the reaction between sodium salt of 4-aminosalicylic acid (PAS-Na), Ni(NO3)(2) center dot ... -
Two dimensional cyano-bridged heteropolynudear complex containing Pd center dot center dot center dot pi interactions
(Walter De Gruyter GMBH, 2013)The heteronuclear complex, [Cd(NH3)(2)(mu-ampy)Pd(mu-CN)(2)(CN)(2)], (1) (ampy = 4-aminomethylpyridine), was synthesized and characterized by vibrational (FT-IR and Raman) spectroscopy, elemental and thermal analyses and ... -
Two new pyridine-2,3-dicarboxylate coordination polymers prepared from zerovalent metal precursor: Syntheses, luminescent and magnetic properties
(Academic Press Inc Elsevier Science, 2014)Two new K+/Cu(II) and Zn(II) coordination polymers with pyridine-2,3-dicarboxylate (pydc), {K-2[Cu(mu-PYdc)(2)] center dot 3H(2)O}(n) (1) and {[Zn(mu-pydc)(H2O)(4-mim)] center dot H2O}(n) (2) (4-mim=4-methylimidazole) have ... -
Two novel 2D and 3D coordination polymers constructed from pyrazine-2,3-dicarboxylic acid and chloride bridged secondary building units
(Elsevier Science Sa, 2011)The synthesis, spectroscopic properties and crystal structures of {[Cu-2(mu-Cl)(2)(mu(3)-Hpzdc)(Cl)(H2O)(2)]center dot 1.5H(2)O}(n) (1) and {[Cd(mu-Cl)(mu-Hpzdc)]center dot H2O)}(n) (2) complexes were reported (H(2)pzdc = ... -
Two novel isostructural and heteroleptic Nd(III) and Dy(III)-organic frameworks constructed by 2,5-pyridinedicarboxylic acid and in situ generated 2-pyridinecarboxylic acid: Hydrothermal synthesis, characterization, photoluminescence properties and heterogeneous catalytic activities
(Pergamon-Elsevier Science LTD, 2017)The crystal structures, heterogeneous catalytic activities and photoluminescent properties of two novel three dimensional (3D) metal organic frameworks (MOFs), [Nd(pyc)(pydc)(H2O)](n) (1) and [Dy(pyc) (pydc)(H2O)](n) (2) ... -
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) ... -
Use and application of general quaternion transformations in robotics
(2002)Bu makalede kuaternion cebri ve prizmatik manipülatörler için bir genel kuaternion dönüşümünü incelenmiştir. Dönme dönüşümünde, Euler parametreleri ve dönme matrisi arasında bir bağıntı geliştirilmiştir. Bu bağıntı robot ... -
Use of bilayer gate insulator to increase the electrical performance of pentacene based transistor
(Elsevier Science Sa, 2017)In this study, bottom-gate top-contact pentacene-based organic field effect transistors (OFET) with various spin coated ultrathin organic dielectrics on anodized aluminum oxide (Al2O3) bilayer gate dielectrics were fabricated. ... -
Use of molecular imprinted nanoparticles as biorecognition element on surface plasmon resonance sensor
(Elsevier Science Sa, 2011)In this study, we have prepared lysozyme imprinted poly(ethylene glycol dimethacrylate-N-methacryloyl-L-histidine methylester) (PEDMAH) nanoparticles and then attached on the surface of surface plasmon resonance (SPR) ... -
Using heavy atom rare gas matrix to control the reactivity of 4-methoxybenzaldehyde: A comparison with benzaldehyde
(Amer Inst Physics, 2012)Different patterns of photochemical behavior were observed for 4-methoxybenzaldehyde (p-anisaldehyde) isolated in xenon and in argon matrices. Monomers of the compound isolated in solid Xe decarbonylate upon middle ultraviolet ... -
Utilization of the Phaseolus vulgaris L. waste biomass for decolorization of the textile dye Acid Red 57: determination of equilibrium, kinetic and thermodynamic parameters
(Taylor & Francis Inc, 2007)In the present study, biosorption of Acid Red 57 (AR57) onto a waste biomass of Phaseolus vulgaris L. was investigated by varying pH, contact time, biosorbent concentration and temperature, to determine the equilibrium, ... -
UV-spectral changes for some azo compounds in the presence of different solvents
(Elsevier Science BV, 2011)The electronic absorption spectra of four azo dyes with different substituents (such as Cl, I, OH) are determined at room temperature in twenty-one solvents with different polarities. The electronic transitions of azo dyes ...