Претраживање
Приказ резултата 61-70 од 1442
Image analysis of protective layer of zinc on steel obtained using the hot process / Analiza slike za karakterisanje zaštitnog sloja cinka na čeliku dobijenog toplim cinkovanjem
(Savez inženjera metalurgije Srbije, Beograd, 2003)
The procedure for measuring the thickness of anticorrosion protective layer of zinc on steel is given. The metallographic images are used for this measurement. Results are statistically handled and results are used to ...
Simultaneous correlation of VLE, He and Cpe of some diether + n-alkane systems by the Kohler polynomial / Simultano korelisanje VLE, He i Cpe podataka dietar + n-alkan sistema pomoću Kohlerovog polinoma
(Serbian Chemical Society, Belgrade, 2006)
The simultaneous correlation of VLE and excess properties (HE, cPE) for diether + n-alkane systems was performed in our previous paper by the cubic equation of state which incorporates the activity coefficient model ...
Correlation analysis of IR, H-1 NMR and UV spectral data of alkyl and aryl 4,6-disubstituted-3-cyano-2-pyridones. Part I
(Arkat Usa Inc, Gainesville, 2006)
Spectral characteristics of the two series of previously synthesized and identified 4,6-disubstituted- 3-cyano-2-pyridones were determined, and corresponding H-1 NMR chemical shifts and IR and UV frequencies were correlated ...
A new approach to the velocity field investigation in case of the entry flow in curved pipes with circular cross section
(Springer Wien, Wien, 2000)
In this paper an analysis of a laminar flow in a bend preceded by the straight section is presented. The flow is supposed to be unperturbed far upstream, while far downstream it becomes fully developed. In the vicinity of ...
Adhesion and corrosion resistance of epoxy primers used in the automotive industry
(Taylor & Francis Ltd, Abingdon, 2007)
One of the most important factors in corrosion prevention by protective coatings is the loss of adhesion of the coating under environmental influence. Thus, adhesion strength is often used when characterizing protective ...
Thermal stability of starch benzoate
(Elsevier Sci Ltd, Oxford, 2005)
Starch esterification with benzoyl chloride was performed in two steps, the first being the alkali treatment of the starch and the second, esterification. Samples of hydrophobic starch benzoate were synthesized with degrees ...
New analytical HFET I-V characteristics model
(Natl Inst Optoelectronics, Bucharest-Magurele, 2006)
In this paper the new analytical model of current - voltage characteristics of a Heterostructure Field Effect Transistor (HFET), is proposed. The model is relatively simple, and at the same time, it describes complex HFET ...
Examination of localization of silymarin and fatty oil in Silybum marianum (L.) Gaertn. fruit
(Association of the Chemical Engineers of Serbia, 2007)
Physical characteristics and localization of flavonoids and fatty oil in Silybum marianum (L.) Gaertn. fruit of different origin were examined. Physical characteristics of the fruit were determined by its origin, and samples ...
Determination of safety margin and reliability factor of boiler tube with surface crack / Određivanje stepena sigurnosti i faktora pouzdanosti kotlovskih cevi sa površinskom prslinom
(Society for Structural Integrity and Life, Institute for Material Testing, 2005)
In this paper SINTAP Level 1 procedure has been used to determine the safety factor and the reliability factor for a boiler tube exhibiting a longitudinal defect inside the tube weld. These factors are obtained using ...
Characterization of colloidal chromia particles obtained by forced hydrolysis
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
Colloidal particles of chromia have been prepared by forced hydrolysis of an aqueous solution containing chromium chloride hexahydrate. At elevated temperature, a controlled addition of potassium hydroxide yielded colloidal ...