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Toplam kayıt 1178, listelenen: 825-844
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Quantum chemical and experimental studies on the mechanism of alkylation of beta-dicarbonyl compounds. The synthesis of five and six membered heterocyclic spiro derivatives
(MDPI, 2004)The alkylation of beta-dicarbonyl compounds in a K2CO3/DMSO system was found to afford O- and C-alkylated derivatives, depending on the type of the P-dicarbonyl compound involved. The alkyl derivatives obtained were used ... -
Quantum chemical studies on some 1,2,4-triarylsubstituted imidazoles
(Elsevier Science BV, 2002)The geometries, proton affinities and thermodynamic properties of some 1,2,4-triarylsubstituted imidazole derivatives were calculated with full geometry optimization using AM1 and PM3 methods in aqueous phase. A possible ... -
A quantum chemical study on structure of 1,2-bis(diphenylphosphinoyl)ethane and hydroquinone cocrystal
(Elsevier Science BV, 2005)The cocrystal of 1,2-Bis(diphenylphosphinoyl)ethane (DPPEO) with hydroquinone (HQ) (1: 1) were studied theoretically with MINDO/3, MNDO, PM3 and AM I semi-empirical methods to elucidate its structure. The bond lengths and ... -
A quantum chemical study on structure of 1,2-bis(diphenylphosphinoyl)ethane and phenol cocrystal
(Elsevier Science BV, 2004)The cocrystal of 1,2-bis(diphenylphosphinoyl)ethane (DPPEO) with phenol (1: 1) were studied theoretically with AM1, PM3, MNDO and MINDO/3 semi-empirical methods to elucidate its structure. The bond lengths and angles from ... -
A quantum chemical study on structures of (+)-(R)-2,2-bis(diphenylphosphinoyl)-1,1 '-binaphthyl and its hydroquinone complex
(Elsevier Science BV, 2005)The (+)-(R)-2,2-bis(diphenylphosphinoyl)-1,1'-binaphthyl ((+)-(R)-BINAPO) and its cocrystal with hydroquinone (HQ) (1:1) were studied theoretically with AM1, PM3, MNDO and MINDO/3 semi-empirical methods to elucidate their ... -
The quantum confined Stark effect in silicon nanocrystals
(IOP Publishing LTD, 2008)The quantum confined Stark effect (QCSE) in Si nanocrystals embedded in a SiO(2) matrix is demonstrated by photoluminescence (PL) spectroscopy at room and cryogenic temperatures. It is shown that the PL peak position shifts ... -
Quantum dot nanocrystals having guanosine imprinted nanoshell for DNA recognition
(Elsevier Science BV, 2008)Molecular imprinted polymers (MIPs) as a recognition element for sensors are increasingly of interest and MIP nanoparticles have started to appear in the literature. In this study, we have proposed a novel thiol ligand-capping ... -
Quantum lifetimes and momentum relaxation of electrons and holes in Ga0.7In0.3N0.015As0.985/GaAs quantum wells
(Taylor & Francis LTD, 2011)Electronic transport in n-and p-type modulation-doped Ga0.7In0.3N0.015As0.985/GaAs quantum wells are investigated using magneto-transport measurements in the temperature range between T = 1.8 and 32K and at magnetic fields ... -
Quartz crystal microbalance based nanosensor for lysozyme detection with lysozyme imprinted nanoparticles
(Elsevier Advanced Technology, 2010)The aim of this study is to prepare quartz crystal microbalance (QCM) nanosensor for the real-time detection of lysozyme. In the first part, the lysozyme imprinted (MIP) nanoparticles were prepared by mini-emulsion ... -
The quaternionic energy conservation equation for acoustic
(Slovak Acad Sciences Inst Physics, 2003)After introducing the quaternions and its algebra, the equations of the linear acoustics are defined. The local conservation equation for energy of the linear acoustics using quaternions and a quaternionic first-order ... -
Quinolone-Hydroxyquinoline Tautomerism in Quinolone 3-Esters. Preserving the 4-Oxoquinoline Structure To Retain Antimalarial Activity
(American Chemical Society, 2015)Recent publications report in vitro activity of quinolone 3-esters against the bc(1) protein complex of Plasmodium falciparum and the parasite. Docking studies performed in silica at the yeast Q(o) Site established a key ... -
Radon concentration measurements at a university campus in Turkey
(2016)In this study we measured radon (222Rn) concentrations in offices at the Meselik campus of EskisehirOsmangazi University to estimate the effective dose of222Rn and its progeny for office occupants. The measurementswere ... -
Rapid direct spectrophotometric determination of zirconium(IV) in alloys with 2,2 ',3,4-tetrahydroxy-3 '-sulpho-5 '-carboxyazobenzene reagent
(Natl Inst Science Communication-Niscair, 2011)In this study, 2, 2, 3, 4-tetrahydroxy-3'-sulpho-5'-carboxyazobenzene (tetrahydroxyazon SC) has been synthesized for the first time and used for direct spectrophotometric determination of zirconium(IV). Tetrahydroxyazon ... -
Rapid real-time detection of procalcitonin using a microcontact imprinted surface plasmon resonance biosensor
(Royal Soc Chemistry, 2013)Procalcitonin (PCT) is a promising biomarker for identification of the origin and severity of sepsis, which is a deadly body infection. In this work, we report the preparation of a surface plasmon resonance (SPR) biosensor ... -
The reaction of thiophenoxide with amino-substituted chloro-cyclotriphosphazenes
(Pergamon-Elsevier Science LTD, 2009)In the present work, a series of aminocyclotriphosphazene containing sulfur group compounds have been synthesised and characterised by elemental analysis, mass (MS), (1)H and (31)P NMR spectroscopies. The formation of ... -
Redundant Sb condensation on GaSb epilayers grown by molecular beam epitaxy during cooling procedure
(Elsevier Science Sa, 2014)The effect of four different cooling receipts on the surface morphologies of unintentionally-doped GaSb epilayers on GaSb (100) substrates grown by molecular beam epitaxy is reported. Those receipts include three different ... -
A Reflectometric Interferometric Nanosensor for Sarcosine
(Wiley-Blackwell, 2015)Sarcosine was recently identified as a differential metabolite that is present in urine in elevated concentration as prostate cancer develops metastases. The aim of this study is to prepare reflectometric interference ... -
Reformulation of electromagnetic and gravito-electromagnetic equations for Lorentz system with octonion algebra
(Springer/Plenum Publishers, 2014)In this paper, the real, complex octonion algebra and their properties are defined. The electromagnetic and gravito-electromagnetic equations with monopoles in terms of S and S' reference systems are presented in vector ... -
Reformulation of electromagnetism with octonions
(Soc Italiana Fisica, 2006)In this paper, the octonion algebra and its general properties are defined by two different multiplication rules for octonion units. The field equations, potential and Maxwell equations for electromagnetism are investigated ... -
Reformulation of Multifluid Plasma Equations in Terms of Spacetime Algebra
(Korean Physical Soc, 2018)Using the exact isomorphism between multifluid plasma theory and classical electromagnetism, we apply the theorems and techniques of spacetime algebra to the multifluid equations of a plasma in order to present a new ...
