Ara
Toplam kayıt 3173, listelenen: 2971-2980
Congo Red attached monosize poly(HEMA-co-MMA) microspheres for use in reversible enzyme immobilisation
(Elsevier Science Sa, 2002)
Monosize and non-porous poly(2-hydroxyethylmethacrylate-co-methylmethacrylate) (poly(HEMA-co-MMA)), microspheres were prepared by dispersion polymerisation of HEMA and MMA in an ethanol-water medium in the presence of an ...
Crystal structure, spectroscopic studies and conformational analyses of 5-chloro-6-nitro-2-cyclohexylmethylbenzoxazole
(Elsevier Science Bv, 2002)
5-Chloro-6-nitro-2-cyclohexylmethylbenzoxazole (1) (C14H15O3N2Cl) has been studied by using an elemental analysis, IR, 5-Chloro-6-nitro-2-cyclohexylmethylbenzoxazole (1) ( H-1 NMR, X-ray analysis and AMI semi-empirical ...
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 ...
Covalent immobilization of lipase onto hydrophobic group incorporated poly(2-hydroxyethyl methacrylate) based hydrophilic membrane matrix
(Elsevier Sci Ltd, 2002)
In this study, a hydrophobic group containing monomer, 2-methacrylamidophenyalanine (MAPA) was prepared by using methacrylochloride and phenylalanine. Then, poly(2-hydroxyethyl methacrylate-co-methacrylamido-phenlyalanine) ...
A piezoelectric motor using two orthogonal bending modes of a hollow cylinder
(Ieee-Inst Electrical Electronics Engineers Inc, 2002)
This paper proposes a compact ultrasonic motor with low manufacturing costs, a simpler driving circuit, and scalability. The stator of the motor presented in this paper consists of a hollow metal cylinder, whose outside ...
Taxonomic status and karyotype of Myotis capaccinii (Bonaparte, 1837) from Turkey (Chiroptera: Vespertilionidae)
(Museum Nat Hist Naturelle, 2002)
This study is based on karyological analyses of 13 Myotis capaccinii specimens collected from three localities during field works in 1998 and 1999. It was found that the diploid number (2n), the fundamental number (NF) and ...
Endoscopy in the 15th Century
(Georg Thieme Verlag Kg, 2002)
The aim of this study was to investigate the contributions of Serefeddin Sabuncuoglu (1385-1468?) - who was born and practiced in Amasya in northern part of central Anatolia - to the field of endoscopy. He was a humble, ...
On accelerated iterative methods for the solution of systems of linear equations
(Taylor & Francis Ltd, 2002)
In literature, it has been reported that the convergence of some preconditioned stationary iterative methods using certain type upper triangular matrices as preconditioners are faster than the basic iterative methods. In ...
Nonsurgical treatment of a catamenial pneumothorax with a Gn-RH analogue
(Karger, 2002)
Catamenial pneumothorax is a rarely encountered entity characterized by recurrent pneumothorax concurrent with menstruation. Numerous mechanisms have been postulated in the etiology of catamenial pneumothorax and treatment ...
The precise human bioclock, possibly imported
(Churchill Livingstone, 2002)
Contrary to what has long been suggested, the biological clock is not a poor timekeeper. In fact, it has been working in precision for millions of years as a genetically set clock, independent of environmental periodicity. ...