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Publicatii proprii
Contrast enhanced and Doppler ultrasonography in the characterization of the microcirculation. Expectancies and performances
Normal and pathological vascularization can be examined using imaging methods. The use of contrast agents (CA), tracers or markers within the bloodstream, has gained more and more applications in the last years. The dynamics of the CA passing through a region of interest is directly correlated with the morphological and functional characteristics of the bloodstream in that particular area. Doppler ultrasonography provides information only regarding
Read moreSpectral and thermal studies of 4-(phenyldiazenyl)phenyl 2-furoate as corrosion inhibitor for carbon steel
The azo-ester, namely 4-(phenyldiazenyl)phenyl 2-furoate (PPF) by a coupling reaction between 4-(phenyldiazenyl)phenol and 2-furoyl chloride in the presence of pyridine was obtained. For characterization of this compound UV-Vis, FTIR and Thermal analysis were used. PPF was investigated as corrosion inhibitor for carbon steel in saline waters using potentiodynamic polarization. Morphology of the surface before and after corrosion was examined by optical
Read moreSynthesis and characterization of an azo dye: 4-(phenyldiazenyl)phenyl 2-furoate. Electrochemical and XPS study of its adsorption and inhibitive properties on corrosion of carbon steel in saline water
A new azo-derivative, 4-(phenyldiazenyl)phenyl 2-furoate (PPF), was obtained by an esterification reaction between 4-(phenyldiazenyl)phenol and 2-furoyl chloride in pyridine. The dye was characterized using elemental analysis, nuclear magnetic resonance (1H and 13C) and mass spectrometry with electro-spray ionization (ESI) techniques. The inhibitive properties of PPF on the corrosion of carbon steel in saline water (SW) have been investigated using
Read moreSTRUCTURAL CHARACTERISTICS OF PROCESSED Ti-6Al-7Nb ALLOY IN (alfa+beta) DOMAIN BY PLASTIC DEFORMATION AND HEAT TREATMENT
This paper presents some scientific results referring to structural characteristics of a Ti-Al-Nb alloy, processed by plastic deformation and heat treatment. In order to investigate structural characteristics two different phase states were used, the "lower" temperature phase (alfa+beta) (about 930°C) processed by plastic deformation, using a deformation degree e = 35% and same (alfa+beta) phase processed by plastic deformation and heat treated.
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