Başlık için Fizik Bölümü listeleme
Toplam kayıt 1178, listelenen: 150-169
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Comparison of adsorption and selectivity characteristics for 4-nitrophenol imprinted polymers prepared via bulk and suspension polymerization
(Marcel Dekker Inc, 2004)This manuscript describes a method for the selective removal of phenolic compounds from aqueous medium by imprinted polymers, which is the noncovalent approach based on both hydrogen bonding and hydrophobic interaction. ... -
Comparison of adsorption performances of metal-chelated polyamide hollow fibre membranes in lysozyme separation
(Elsevier Science BV, 2002)Commercially available microporous polyamide hollow fibres are modified by acid hydrolysis to activate the reactive groups and subsequently binding of the ligand, i.e. Cibacron Blue F3GA. Then the Cibacron Blue F3GA-derived ... -
Comparison of supercritical fluid and Soxhlet extractions for the quantification of hydrocarbons from Euphorbia macroclada
(Elsevier Science BV, 2004)This study compares conventional Soxhlet extraction and analytical scale supercritical fluid extraction (SFE) for their yields in extracting of hydrocarbons from arid-land plant Euphorbia macroclada. The plant material was ... -
Complementary and alternative technique for the determination of electron effective mass: quantum Hall effect
(Natl Inst Optoelectronics, 2016)The quantum Hall effect measurements in the AlInN/AlN/GaN heterostructure are studied in the temperature range from 1.8 K to 14 K and a magnetic field up to 11 T. The quantized two-dimensional electron gas was placed at ... -
Complete analysis of the H-1 and C-13 NMR spectra of diastereomeric mixtures of (R,S- and S,S-)-3,6-dimethoxy-2,5-dihydropyrazine-substituted indoles and their conformational preference in solution
(Wiley-Blackwell, 2010)Complete analysis of the H-1 and C-13 NMR spectra obtained with and without a chemical shift reagent (Eu(fod)(3)), of bis-lactim ether 1 (Schollkopf auxiliary) and monosubstituted 3- or 2-{(2R,5S or 2S,5S)-5-isopropyl-3, ... -
Complete removal of the insecticide azinphos-methyl from water by the electro-Fenton method - A kinetic and mechanistic study
(Pergamon-Elsevier Science LTD, 2013)The removal of organophosphorous insecticide azinphos-methyl (AZPM) from water has been investigated by the electro-Fenton method which produces hydroxyl radicals electrocatalytically. The reaction between these radicals ... -
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 ... -
Comprehensive growth and characterization study on highly n-doped InGaAs as a contact layer for quantum cascade laser applications
(IOP Publishing LTD, 2018)We present growth and characterization studies of highly n-doped InGaAs epilayers on InP substrate by metal organic vapor phase epitaxy to use as an n-contact layer in quantum cascade laser applications. We have introduced ... -
Computational study on favipiravir adsorption onto undoped-and silicon-decorated C60 fullerenes
(World Scientific Publ Co Pte LTD, 2017)Adsorption and interaction mechanisms of fullerene-based complex systems for possible drug delivery vehicles have been at the center of increasing attention. In the scope of this work, the interaction mechanism between an ... -
Conformation and NH stretching of 1,1-dihalogenoheptan-1-amines[CH3(CH2)(5)CX2NH2; X = F, Cl or Br]: Halogen and solvent effects
(Pergamon-Elsevier Science LTD, 2015)The effects of halogen and solvent on the conformation and NH stretching of 1,1-dihalogeno-heptan-1amines [CH3(CH2)(5)CX2NH2: X = F, Cl or Br] were investigated using the density functional theory method. The functional ... -
Conformational analysis and vibrational spectroscopic investigation of 3-phenylpropylamine
(Elsevier Science BV, 2009)The possible stable forms of 3-phenylpropylamine (3-PPA) molecule were experimentally and theoretically studied by infrared and Raman spectroscopy. FT-IR and Raman spectra of 3-PPA were recorded in the regions of 4000-400 ... -
Conformational and electronic properties of hydroquinone adsorption on C60 fullerenes: Doping atom, solvent and basis set effects
(Elsevier Science BV, 2018)Hydroquinone (HQ) is widely used as a reducing agent with well-known antioxidant properties. The interaction with pristine and doped fullerenes seems to have a promising research field particularly for the drug delivery ... -
Conformational and electronic properties of N-methacryloyl-(L)-glutamic acid
(Taylor & Francis LTD, 2017)Conformers of N-methacryloyl-(L)-glutamic acid (MAGA, C9H13NO5) in the gas phase, benzene or methanol environment were searched by the density functional theory (DFT) and time-dependent DFT. Selected conformational isomers ... -
Conformers of beta-aminoisobutyric acid probed by jet-cooled microwave and matrix isolation infrared spectroscopic techniques
(Amer Inst Physics, 2013)beta-aminoisobutyric acid (BAIBA) has been studied in isolation conditions: in the gas phase and trapped into a cryogenic N-2 matrix. A solid sample of the compound was vaporized by laser ablation and investigated through ... -
Conservation of quantum efficiency in quantum well intermixing by stress engineering with dielectric bilayers
(IOP Publishing LTD, 2018)In semiconductor lasers, quantum well intermixing (QWI) with high selectivity using dielectrics often results in lower quantum efficiency. In this paper, we report on an investigation regarding the effect of thermally ... -
Construction of homo- and heterometallic-pyridine-2,3-dicarboxylate metallosupramolecular networks with structural diversity: 1D T5(2) water tape and unexpected coordination mode of pyridine-2,3-dicarboxylate
(Royal Soc Chemistry, 2013)Five new homo and heterometallic Cu(II), Cd(II), Cu(II)-Ag(I), Cu(II)-Cd(II) supramolecular networks with pyridine-2,3-dicarboxylate (pydc), {[Cu(mu-pydc)(dmpen)(2)]}(n) (1), [Cu-2(mu-pydc)(2)(emim)(4)]center dot 2H(2)O ... -
Contactless electron effective mass determination in GaInNAs/GaAs quantum wells
(Springer, 2013)The electron effective masses in n-type modulation doped Ga0.7In0.3NyAs1-y/GaAs quantum wells with nitrogen mole fractions of y = 0.004 and 0.010 were investigated experimentally. Two experimental techniques: magnetic field ... -
Controlled growth of c-axis oriented ZnO nanorod array films by electrodeposition method and characterization
(Pergamon-Elsevier Science LTD, 2014)ZnO nanorod array films were deposited from aqueous solution containing different concentrations (1 x 10(-2) M and 5 x 10(-3) M) Zn(NO3)(2)center dot 6H(2)O and C6H12N4 and at different electrodeposition times (i.e., 15 ... -
Convenient synthesis of C-terminal di- and tri-peptide amides from N-protected dipeptidoylbenzotriazoles
(Pergamon-Elsevier Science LTD, 2009)N-Protected dipeptidoylbeiizotriazoles react with aqueous ammonia to give dipeptide primary amides (77-98%) and with N-unprotected alpha-amino amides to afford tripeptide primary amides (82-86%). -
Copper (II) Phthalocyanine Based Field Effect Transistors with Organic/Inorganic Bilayer Gate Dielectric
(Amer Scientific Publishers, 2015)High mobility Copper (II) phthalocyanine (CuPc) organic field effect transistor (OFET) with Polyvinyl Alcohol (PVA)/Anodized Aluminium Oxide (Al2O3) bilayer gate dielectric was fabricated. The morphology of CuPc active ...