Güncel Gönderiler: Fizik Bölümü
Toplam kayıt 1178, listelenen: 161-180
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Preparation of Sb-doped ZnO nanostructures and studies on some of their properties
(2008)Sb-doped ZnO nanostructures have been deposited onto glass substrates by a sol-gel method. The structural, optical and electrical properties of the Sb-doped ZnO films were characterized by various techniques including ... -
The isospin admixture of the ground state and the properties of the isobar analog resonances in deformed nuclei
(American Institute of Physics Inc., 2008)Within quasiparticle random phase approximation (QRPA), Pyatov-Salamov method for the self-consistent determination of the isovector effective interaction strength parameter, restoring a broken isotopic symmetry for the ... -
The study of dependence of the radial parts of 0-›0 + first forbidden ß-decay matrix elements on the parameters in Woods-saxon potential
(2008)In this paper, O-›0+ first forbidden ß-decay matrix elements have been calculated. For 206-214Pb›206-214Bi transitions relativistic M ±(?A,?=0) and nonrelativistic M±(jA, k=1,?=0)) matrix elements have been calculated. In ... -
Band gap energies of CdO:F semiconductor films produced by ultrasonic spray pyrolysis method
(2007)The fluorine doped cadmium oxide (CdO:F) samples have been deposited by ultrasonic spray pyrolysis method (USP). The absorption spectra of the samples showed that CdO:F is a direct band gap material. The direct optical ... -
Physicochemical characterization of natural and Na+-, K +-, Ca2+-and Mg2+-modified clinoptilolite from gördes (Manisa, Turkey)
(2009)Physicochemical characterization of the natural solid-phase Gördes clinoptilolite and of the Na+-, K+-, Ca2+-and Mg2+-modified forms of the mineral (as obtained through ion-exchange) by batch methods, X-ray diffractometry ... -
Effect of deposition temperature on the crystalline structure and surface morphology of ZnO films deposited on p-Si
(2010)Zinc oxide (ZnO) films were deposited on p-Si substrates by sol-gel spin coating method. Zinc acetate dihydrate (ZnAc), 2-methoxyethanol and monoethanolamine (MEA) were used as a starting material, solvent and stabilizer, ... -
NMR spectroscopic study and DFT calculations of GIAO NMR shieldings and 1JCH, spin-spin coupling constants of 1,9-diaminononane
(Chemical Society of Ethiopia, 2009)1H, proton coupled and decoupled l3C, DEPT, HETCOR NMR spectra, the magnitude of one bond 1Jch coupling constants and l3C NMR spin-lattice relaxation time (T1) of 1,9-diaminononane (danon, C9H22N2) have been reported for ... -
High-field electrical conduction in thin films of polyethylene
(1987)The voltage-current characteristics of thin film metal-polyethylene-copper structures in which copper is used as a top electrode are studied. The samples made with thermally vacuum-evaporated polyethylene and having a top ... -
Characterization of a multilayer GaAs/AlGaAs broadband quantum well infrared photodetectors
(2010)In this study, we report on the investigation of two multilayer GaAs/AlGaAs quantum well infrared photodetectors designed for 8-12 µm spectral range detection. Fabricated devices were characterized by current-voltage and ... -
Vibrational spectroscopic investigation of some Hofmann-Td type complexes: Ni(1-phenylpiperazine)2M(CN)4 (M = Cd or Hg)
(2009)New Hofmann-Td type complexes in the form of Ni(pp) 2M(CN)4 (where pp = 1-Phenylpiperazine and M = Cd or Hg) have been prepared in powder form and their infrared (4000-100 cm-1) and Raman (2800-1650 cm-1) spectra have been ... -
Synthesis and non-linear optical properties of monopyrrolotetrathiafulvalene derived donor-pi-acceptor dyads
(Royal Soc Chemistry, 2004)The synthesis of novel donor-pi-acceptor dyads based on a pyrrolo-annelated tetrathiafulvalene unit is described. The linear and non-linear optical properties of these chromophores have been investigated, together with ... -
Preparation of magnetic dye affinity adsorbent and its use in the removal of aluminium ions
(Vsp BV, 2001)Aluminium has recently been considered as a causative agent in dialysis encephalopathy, osteodystrophy, and anemia occuring in hemodialysis patients. The aim of this study is to prepare magnetic poly (2-hydroxyethylmethacrylate) ... -
Determination of the alloy scattering potential in modulation-doped In 0.53Ga0.47As/In0.52Al0.48As heterojunctions from magnetotransport measurements
(2005)The results of magnetotransport measurements are used to investigate the scattering mechanisms and hence to determine the alloy disorder scattering potential in modulation-doped In0.53Ga0.47As/In 0.52Al0.48As heterojunction ... -
FT-IR Spectroscopic Study on Some Hofmann-TdType Complexes: Ni(4-Phenylpyridine)2M(CN)4(M = Cd or Hg)
(2005)New Hofmann- Tdtype complexes in the form of Ni(4-Phenylpyridine)2M(CN)4(M = Cd or Hg) were prepared in powder form and their infrared spectra are reported in the region of 4000200 cm-1. From the spectral findings, these ... -
Some DC and AC Properties of Copper-Loaded Polypropylene Films
(1987)Thin film Cu-polypropylene-Cu sandwich structures are prepared by thermal vacuum deposition of these materials onto glass substrates. Polypropylene in some of the samples is also loaded with Cu of varying amount. ... -
Ion-selective imprinted beads for aluminum removal from aqueous solutions
(American Chemical Society, 2006)The aim of this study is to prepare ion-imprinted polymers that can be used for the selective removal of aluminum ions [Al3+] from aqueous solutions. N-Methacryloyl-L-glutamic acid (MAGA) was chosen as the complexing ... -
Heavy metal ion adsorption properties of methacrylamidocysteine-containing porous poly(hydroxyethyl methacrylate) chelating beads
(Multi Science Publ Co LTD, 2002)Details of the adsorption performance of poly(2-hydroxyethylmethacrylate-methacrylamidocysteine) [p(HEMA-MAC)] beads towards the removal of heavy metal ions from aqueous solution were studied. The metal-complexing ligand ... -
Adsorption of Ni2+ from aqueous solutions by novel polyethyleneimine-attached poly(p-chloromethylstyrene) beads
(John Wiley & Sons Inc, 2002)In this study Ni2+ adsorption properties of polyethyleneimine (PEI)-attached poly(p-chloromethylstyrene) (PCMS) beads were investigated. Spherical beads with an average size of 186 gm were obtained by the suspension ... -
Synthesis of cholesterol imprinted polymeric particles
(Elsevier Science BV, 2007)The aim of this study is to prepare cholesterol-imprinted polymeric particles. N-Methacryloyl-(L)-tyrosinemethylester (MAT) was chosen as the complexing monomer. In the first step, functional monomer MAT was synthesized ... -
Novel methacryloylamidophenylalanine functionalized porous chelating beads for adsorption of heavy metal ions
(John Wiley & Sons Inc, 2003)The purpose of this study was to investigate in detail the adsorption performance of poly(2-hydroxyethylmethacrylate-methacryloylamidophenylalanine) [p(HEMA-MAPA)] beads. The metal-complexing comonomer MAPA was synthesized ...