Güncel Gönderiler: Fizik-Makale Koleksiyonu
Toplam kayıt 626, listelenen: 441-460
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Beneficiation of quartz waste by flotation and by ultrasonic treatment
(Oficyna Wydawnicza Politechniki Wroclawskiej, 2011)Quartz is one of the most important industrial minerals used in glass and ceramic industries and high quality quartz are preferred. Impurities from quartz are usually removed by magnetic separation or flotation. This study ... -
Electrodeposited cobalt films: alteration caused by the electrolyte ph
(Springer, 2011)Cobalt (Co) films were electrodeposited on polycrystalline copper substrates at different pH values. It is observed that the crystal structure of the films converts from hexagonal close-packed (hcp) to a mixed phase of ... -
Properties of iron oxide nanoparticles synthesized at different temperatures
(Springer, 2011)Iron oxide nanoparticles were synthesized by co-precipitation in air atmosphere at different temperatures and their structural and magnetic properties were investigated. The mean particle sizes of iron oxide nanoparticles ... -
The use of [Fe(dithiooxalate)(2)(NO)](2-) as a tecton in crystal engineering
(Royal Soc Chemistry, 2011)A series of crystalline salts based on the complex dianion [Fe(dto)(2)(NO)](2-) (dto = 1,2-dithiooxalate) with hydrogen-bond donor cations have been synthesised. The preparation and structural characterisation of the new ... -
Mono- and dinuclear Fe(III) complexes with the N2O2 donor 5-chlorosalicylideneimine ligands; synthesis, X-ray structural characterization and magnetic properties
(Elsevier Science Sa, 2011)Two novel monomeric [C18H17Cl3N2O2Fe] (1) and dimeric [C38H36N4O4Cl6Fe2] (2) Fe(III) tetradentate Schiff base complexes have been synthesized and their crystal structures have been determined by single crystal X-ray ... -
The effect of different chemical compositions caused by the variation of deposition potential on properties of Ni-Co films
(Elsevier Science Bv, 2011)The magnetic and microstructural properties of Ni-Co films electrodeposited at different cathode potentials were investigated. The compositional analysis revealed that the Ni content increases from 13 at.% to 44 at.% in ... -
First principles predictions on mechanical and physical properties of HoX (X = As, P)
(Elsevier Science Sa, 2011)In this study, the calculated results of the structural, electronic, elastic, lattice dynamic, and thermodynamic properties of HoX (X = As, P) in rocksalt structure (81) are presented. Ab initio calculations were performed ... -
Electrical properties of a calix[4]acid/amine Langmuir-Blodgett thin film
(Elsevier Science Sa, 2011)In this work the DC and AC characteristics for metal-LB film-metal structures deposited by a standard Langmuir-Blodgett film deposition technique are investigated. The conduction mechanism has been studied for a thin film ... -
Calculation of the total Rayleigh scattering cross sections of photons in the energy range of 30-50 keV for Nb and Mo elements
(Pergamon-Elsevier Science Ltd, 2011)The total Rayleigh scattering cross sections are calculated in the energy range of 30-50 keV using the modified relativistic form factors (MRFF), non-relativistic form factors (NFF), and relativistic form factors (RFF). ... -
Interaction of brpdı, brgly, and brasp with the rutile tio2(110) surface for photovoltaic and photocatalytic Applications: A first-principles study
(Amer Chemical Soc, 2011)The adsorption of perylenediimide (PDI)-based dye compounds (BrPDI, BrGly, and BrAsp) on the defect-free unreconstructed (UR) rutile TiO2(110) surface has been studied using total energy pseudopotential calculations based ... -
Radical kinetics and dosimetric features of gamma-irradiated disodium ethylenediaminetetraacetic acid
(Pergamon-Elsevier Science Ltd, 2011)Dosimetric potential and kinetic features of disodium ethylenediaminetetraacetic acid (NaEDTA) were explored through a detail electron spin resonance (ESR) study performed at various temperatures on samples irradiated at ... -
The first principles study on the TmSb compound
(Elsevier Science Bv, 2011)The structural, elastic, electronic, thermodynamic, and phonon properties of TmSb which crystallizes in NaCl (B1) phase were analyzed by performing ab-initio calculations based on density functional theory using the Vienna ... -
Superparamagnetic latex synthesized by a new route of emulsifier-free emulsion polymerization
(Wiley-Blackwell, 2011)The aim of this study was to design polymeric nanospheres containing magnetic nanoparticle which could display superparamagnetic behavior and thus find application in allied fields. First magnetite nanoparticles were ... -
Effects of methyl substituent on the charge-transfer complexations of dicarbazolylalkanes with p-chloranil, tetracyanoethylene and tetracyanoquinodimethane
(Pergamon-Elsevier Science Ltd, 2011)Series of 1,n-dicarbazolylalkanes and 1,n-di(3-methylcarbazolyl)alkanes (where n=1-5) were synthesized and the molar extinction coefficients, equilibrium constants, enthalpies, and entropies of their charge-transfer (CT) ... -
Energy relaxations of hot electrons in AlGaN/AlN/GaN heterostructures grown by MOCVD on sapphire and 6H-SiC substrates
(EDP Sciences S A, 2011)In this work, we investigated the hot-electron dynamics of AlGaN/GaN HEMT structures grown by MOCVD on sapphire and SiC substrates at 80 K. High-speed current-voltage measurements and Hall measurements over the temperature ... -
Optical reflectance anisotropy of the growth of Fe monolayers on W(110)
(Iop Publishing Ltd, 2011)We report measurements of the optical anisotropy of Fe layers grown on the W(110) surface using reflection anisotropy spectroscopy (RAS). As the first monolayer of Fe is deposited onto W(110), the resonance-like RAS profile ... -
Surface energy and excess charge in (1x2)-reconstructed rutile TiO2(110) from DFT plus U calculations
(Amer Physical Soc, 2011)Physically reasonable electronic structures of reconstructed rutile TiO2(110)-(1x2) surfaces were studied using density functional theory (DFT) supplemented with Hubbard U on-site Coulomb repulsion acting on the d electrons, ... -
A new hydrogen-bonded pseudo-dimer Mn(III) Schiff base complex. The synthesis, X-ray structure and spectroscopic studies
(Pergamon-Elsevier Science Ltd, 2011)A new hydrogen-bonded pseudo-dimer, [Mn(III)L1(CH3CH2OH)](2)(ClO4) (1) (L1 = N,N'-bis(2-hydroxy-1-naphthalidenato)-1,2-diaminopropane) has been synthesized and characterized by UV-vis, IR, elemental analysis and crystal ... -
Optical characterization and organic vapor sensing application of perylendiimide Langmuir-Blodgett thin films
(NATL INST Optoelectronics, 2016)The Langmuir-Blodgett (LB) technique was employed to produce thin LB films using N,N'-(glycine tert-butylester)-3,4,9,10-perylenediimide (FY1) material on gold coated glass. The characteristics of the perylenediimide FY1 ... -
Thin film characterization of novel phthalimide materials
(Natl Inst Optoelectronıcs,, 2011)Spin coating technique is employed to produce thin phthalimide films using novel p-phthalimidobenzoic acid (FIBA) and N-(phthalimido)-p-aminobenzoic acid (FIABA) materials. Several spin speeds and various solution ...
