Güncel Gönderiler: Fen Fakültesi
Toplam kayıt 2379, listelenen: 1461-1480
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Removal of phenolic compounds with nitrophenol-imprinted polymer based on pi-pi and hydrogen-bonding interactions
(Elsevier Science BV, 2004)This work describes a method for the removal of phenolic compounds with a nitrophenol-imprinted polymer from aqueous solution by newly functional monomer, methacrylamidoantipyrine (MAAP), which has pi-pi, and hydrogen-bonding ... -
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 ... -
Electrochemical synthesis of poly(2-iodoaniline) and poly(aniline-co-2-iodoaniline) in acetonitrile
(John Wiley & Sons Inc, 2003)Poly(2-iodoaniline) (PIANI) and poly(aniline-co-2-iodoaniline) [P(An-co-2-IAn)] were synthesized by electrochemical methods in acetonitrile solution containing tetrabutylammonium perchlorate (TBAP) and perchloric acid ... -
PT symmetric Aubry-Andre model
(Elsevier, 2014)PT symmetric Aubry-Andre model describes an array of N coupled optical waveguides with position-dependent gain and loss. We show that the reality of the spectrum depends sensitively on the degree of quasi-periodicity for ... -
Self-accelerating matter waves
(World Scientific Publ Co Pte LTD, 2015)The free particle Schrodinger equation admits a nontrivial self-accelerating Airy wave packet solution. Recently, the Airy beams that freely accelerate in space was experimentally realized in photonics community. Here, we ... -
PT symmetric Floquet topological phase
(Springer, 2015)In this paper, we study the existence of Floquet topological insulators for PT symmetric non-Hermitian Hamiltonians. We consider an array of waveguide in 1D with periodically changing non-Hermitian potential and predict ... -
Investigation of the structure of and the properties of the potentially tautomeric 1,2,3,4-tetrahydro-5,7-dimethyl-6H-pyrrolo[3,4-d]pyridazine-1,4-diones in the gaseous and aqueous phases using the AM1 semi-empirical method
(Elsevier Science BV, 1998)Potentially tautomeric 1,2,3,4-tetrahydro-5,7-dimethyl-6H-pyrrolo[3,4-d]pyridazine-1,4-diones and their fixed tautomeric forms have been studied in order to predict their tautomeric equilibrium constants and pK(a) values ... -
A Semi-Empirical and Density Functional Theory Study of 2,2 ',3,4-Tetrahydroxy-3 '-sulpho Azobenzene Derivatives and Their Zirconium Complexes
(Asian Journal Of Chemistry, 2013)In this study, certain theoretical properties of three tetrahydroxyazo derivatives and their zirconium complexes, such as stability, reactivity, geometry and energy have been calculated by MOPAC2009 with the PM6 method and ... -
Preconcentration of copper on ion-selective imprinted polymer microbeads
(Elsevier Science BV, 2003)Molecular recognition-based separation techniques have received much attention in various fields because of their high selectivity for target molecules. Molecular imprinting has been recognized as a promising technique for ... -
Mimicking receptor for methylmercury preconcentration based on ion-imprinting
(Elsevier Science BV, 2007)Solid-phase extraction (SPE) based on molecularly imprinted polymers (MIPs) were used to develop selective separation and preconcentration for methylmercury ion from complex matrixes. In this study, an ion-imprinting polymer ... -
A new metal chelate affinity adsorbent for Cytochrome c
(Wiley, 2004)We have prepared a novel metal-chelate adsorbent utilizing N-methaeryloyl-L-histidine methyl ester (MAH) as a metal-chelating ligand. MAH was synthesized by using methacryloyl chloride and L-histidine methyl ester ... -
Molecularly imprinted ligand-exchange recognition assay of glucose by quartz crystal microbalance
(Elsevier Advanced Technology, 2005)Molecular imprinted polymers (MIP) as a recognition element for sensors are increasingly of interest and MIP-quartz crystal microbalance (QCM) have started to appear in the literature. In this study, we have combined quartz ... -
Purification of penicillin acylase through a monolith column containing methacryloyl antipyrine
(Elsevier Science BV, 2007)The aim of this work was to test a chromatographic support containing 4-amino-antipyrine for its ability to purify penicillin acylase in crude extract and pure penicillin acylase. First, methacryloyl antipyrine (MAAP) as ... -
Creation of recognition sites for organophosphate esters based on charge transfer and ligand exchange imprinting methods
(Elsevier Science BV, 2006)This manuscript describes a method for the selective binding behavior of paraoxan and parathion compounds on surface imprinted polymers which were prepared using both charge transfer (CT) (methacryloyl-antipyrine, MAAP) ... -
Biosorption of cadmium, lead, mercury, and arsenic ions by the fungus Penicillium purpurogenum
(Marcel Dekker Inc, 2003)The potential use of the fungus Penicillium purpurogenum to remove cadmium, lead, mercury, and arsenic ions from aqueous solutions was evaluated. Biosorption of heavy metal ions reached equilibrium in 4 h. Heavy metal ions ... -
L-histidine imprinted synthetic receptor for biochromatography applications
(American Chemical Society, 2006)We have proposed novel surface-imprinted beads for selective separation of cytochrome c (cyt c) by N-methacryloyl(L)-histidine-copper(II) [MAH-Cu(II)] as a new metal-chelating monomer via metal coordination interactions ... -
Dual quaternionic reformulation of electromagnetism
(Slovak Acad Sciences Inst Physics, 2003)It can be said that Maxwell's equations are one of the well-known equations of Physics. Despite the fact that this equations are more than hundred years old (1865), they still are the cornerstone of electrodynamics. Although ... -
The dynamical Casimir effect for two oscillating mirrors in 3D
(IOP Publishing LTD, 2008)The generation of photons in a three-dimensional rectangular cavity with two moving boundaries is studied by using the multiple scale analysis (MSA). It is shown that the number of photons are enhanced for the cavity whose ... -
Measurements of radon concentrations in well waters near the Aksehir fault zone in Afyonkarahisar, Turkey
(Pergamon-Elsevier Science LTD, 2007)Afyonkarahisar is located in the mid-west Anatolia in Turkey where Aksehir fault zone lies. This earthquake active zone has produced earthquakes in magnitudes from 3.0 to 7.1 in Richter scale. The Rn-222 concentrations in ... -
Dynamical Casimir effect for a swinging cavity
(IOP Publishing LTD, 2009)The resonant scalar particle generation for a swinging cavity resonator in the Casimir vacuum is examined. It is shown that the number of particles grows exponentially when the cavity rotates at a specific external frequency.
