Ara
Toplam kayıt 53, listelenen: 41-50
Dielectric behavior of the catalyst zeolite NaY
(Scientific Technical Research Council Turkey-Tubitak, 2007)
Zeolites are crystalline hydrated aluminosilicates of alkaline and alkaline earth metals. The basic zeolite structure is an anionic frame of Si and Al T-atoms, which are tetrahedral and coordinated with oxygen atoms. The ...
Benzotriazole-mediated amidoalkylations of nitroalkanes, nitriles, alkynes and esters
(Arkat Usa Inc, 2007)
Reactions of readily available and stable N-(alpha-amidoalkyl)benzotriazoles 1 ( derived from a variety of aliphatic, aromatic or heterocyclic aldehydes) with diverse nitroalkanes, nitriles, alkynes and esters afforded ...
Ion-imprinted beads for molecular recognition based mercury removal from human serum
(Elsevier Science BV, 2007)
The aim of this study is to prepare ion-imprinted polymers which can be used for the selective removal of mercury ions [Hg2+] from human serum. N-Methacryloyl-(L)-cysteine (MAC) was chosen as the complexing monomer. In the ...
Synthesis, structural and optical properties of novel borylated Cu(II) and Co(II) metal complexes of 4-benzylaminobiphenylglyoxime
(Elsevier Science Sa, 2007)
4-Benzylaminobiphenylglyoxime ligand and its Cu(II) and Co(II) complexes were prepared. BF2+-bridge containing 4-benzylaminobiphenylglyoxime complexes were obtained by replacing of the bridging protons of the dioxime ...
Phosphorus-nitrogen compounds: Synthesis and spectral investigations on new spiro-cyclic phosphazene derivatives
(Pergamon-Elsevier Science LTD, 2007)
The condensation reaction of {N-[(2-hydroxyphenylmethyl)amino]-4,6-dimethylpyridine} (2), which is a reduction product of 1, with trimer N3P3Cl6 affords partially a substituted spiro-cyclic phosphazene derivative (3). The ...
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 ...
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 ...
Thermally stimulated current and space charge limited current mechanism in film of the gold/zinc oxide/gold type
(Elsevier Science BV, 2007)
The thermally stimulated current (TSC) and space charge limited current (SCLC) properties of n-type spray pyrolyzed ZnO thin film were investigated using TSC and current-voltage measurements. TSC measurements of the n-type ...
Theoretical studies on the structure of [(1-aza-2-benzimidazol-2-ylprop-1-enyl)amino]aminomethane-1-thione
(Arkat Usa Inc, 2007)
The tautomerisation and acid-base properties of [(1-aza-2-benzimidazol-2-ylprop-1-enyl) amino]aminomethane-1-thione were studied both in the gas and aqueous phase to elucidate the structure of this compound. The computed ...
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 ...