Ara
Toplam kayıt 76, listelenen: 41-50
Tautomeric properties, conformations and structure of N-(2-hydroxy-5-chlorophenyl) salicylaldimine
(Elsevier Science Bv, 1999)
The crystal structure of N-(2-hydroxy-5-chlorophenyl) salicylaldimine (C13H10NO2Cl) was determined by X-ray analysis. It crystallizes orthorhombic space group P2(1)2(1)2(1) with a = 12.967(2) Angstrom, b = 14.438(3) Angstrom, ...
Immobilization of glucoamylase onto activated pHEMA/EGDMA microspheres: properties and application to a packed-bed reactor
(Elsevier Science Inc, 1998)
Glucoamylase was covalently immobilized onto pHEMA/EGDMA microspheres of two different sizes: 50-100 mu m and 100-200 mu m in diameter. The activity of the enzyme on smaller microspheres was found to be almost twice that ...
Adaptive multi-element synthetic aperture imaging with motion and phase aberration correction
(Ieee-Inst Electrical Electronics Engineers Inc, 1998)
Multi-element synthetic aperture techniques employing subaperture processing over successive firing steps can produce good image quality with simple front-end hardware but are susceptible to motion and phase aberration ...
An ergonomic rendering system for industrial design
(Elsevier Science Bv, 1997)
Product design is one of the most important stages in production processes depending on commercial aims and current technology. Success in modelling the products guarantees that customers' requests can be supplied by these ...
Functionalization of low molecular weight atactic polypropylene - Part I. Spectroscopic studies
(Springer Verlag, 1999)
Low molecular weight atactic polypropylene (APP) was functionalized with 4-allyl-2-methoxyphenol (eugenol), 4-allyl-1,2-dimethoxybenzene (DMAB), 4-propenylanisole(trans-anethole), cis-2,4,5-trimethoxypropenylbenzene ...
Motion estimation using common spatial frequencies in synthetic aperture imaging
(I E E E, 1996)
Correlation processing using fully common spatial frequencies of overlapping subapertures is explored for motion estimation between consecutive excitations in multi-element synthetic aperure imaging. Signals derived from ...
[N,N '-bis(5-bromosalicylidene)-1,3-diaminopropane]copper(II)
(Munksgaard Int Publ Ltd, 1999)
The title compound, [Cu(C17H14Br2N2O2)], has a crystallographic twofold axis. The coordination geometry about the Cu-II centre is a tetrahedrally distorted square plane formed by the four-coordinate N2O2 donor set of the ...
3,3-dichloro-1,4-diphenylazetidin-2-one
(Munksgaard Int Publ Ltd, 1999)
In the crystal structure of the title compound, C15H11C12NO, the Cl-C-Cl plane is nearly perpendicular to the four-membered beta-lactam ring [89.0 (2)degrees] and the C-C bond distances in this group are 1.571 (6) and 1.543 ...
Determination of iron and lead by flame atomic absorption spectrometry after preconcentration with sepiolite
(Springer Verlag, 1997)
By using a new adsorbent (sepiolite) an adsorption-elution and atomic absorption spectrometric method has been developed for the preconcentration and determination of Fe and Pb. Recoveries of the analytes were 82 +/- 3% ...
Beam space processing for low-cost scanners
(I E E E, 1996)
A subaperture processing technique suitable for low-cost ultrasound imaging systems is presented. The technique is based on multi-element synthetic aperture approach and beam interpolation. A large receive aperture is ...