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Wall effects on the velocities of a single sphere settling in a stagnant and counter-current fluid and rising in a co-current fluid
(Elsevier, Amsterdam, 2010)
Experimental results were obtained on the steady settling of spheres in quiescent media in a range of cylindrical tubes to ascertain the wall effects over a relatively wide range of Reynolds number values. For practical ...
Flow-injection chemiluminescence determination of formaldehyde in water
(Elsevier Science Bv, Amsterdam, 2007)
A modification of the Trautz-Schorigin reaction into a flow-injection analysis configuration is described. Different approaches were used at the optimization of chemi luminescence determination of formaldehyde in water ...
Synthesis of nanostructured mullite from xerogel and aerogel obtained by the nonhydrolytic sol-gel method
(Pergamon-Elsevier Science Ltd, Oxford, 1999)
Synthesis and nanostructure evolution of mullite (3Al(2)O(3).2SiO(2)) from xero- and aerogels, obtained by the non-hydrolytic sol-gel process are described. Mullite crystallization and gel nanostructure evolution after ...
Development of a Kinetic Model for Catalytic Reforming of Naphtha and Parameter Estimation Using Industrial Plant Data
(Amer Chemical Soc, Washington, 2009)
In the present paper, a semi-empirical kinetic model for catalytic reforming has been developed. In the developed model, the component "lumping" strategy is based on a paraffins, olefins, naphthalenes, and aromatics (PONA) ...
Surface chemistry of CO on Pt(100)-bimetallic surfaces: Displacement effects
(Amer Chemical Soc, Washington, 2000)
The surface chemistry of coadsorbed CO and metal adatoms on the Pt(100) surface in acid electrolyte has been studied by means of rotating ring disk electrode (RRDE) measurements. These results showed that Cu and Pb adatoms ...
Polypyrrole as possible electrode materials for the aqueous-based rechargeable zinc batteries
(Pergamon-Elsevier Science Ltd, Oxford, 2008)
Polypyrrole (PPy) thin film electrode was galvanostatically synthesized and characterized in 0.1 M HCI on graphite electrode as cathode materials for the aqueous-based rechargeable zinc batteries. The charge/discharge ...
Mass spectrometric study of some 4-pyrimidine carboxylic acids
(Wiley, Hoboken, 2002)
Mass spectrometry has been applied in order to study the main fragmentation routes of some 4-pyrimidene carboxylic acids. Differences in fragmentation were caused by the nature of the substituent in position 2 of the ...
The mathematical model of insulin desorption from the bioactive, fibrous artificial store
(Wiley-Liss, Hoboken, 2006)
The aim of this study was to study insulin desorption from fibrous insulin artificial store in vitro as well as in vivo, with the intention to define a mathematical model that would describe this process. Release profile ...
Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels
(Journal Mater Sci Technol, Shenyang, 2012)
The effect of austenitizing temperature and Cr, Mo and Mn addition on microstructure and mechanical properties of V microalloyed medium carbon steel has been studied by means of metallography and mechanical testing. The ...
Prediction of programmed-temperature retention indices of polycyclic aromatic hydrocarbons in the Lee index scale by artificial neural network
(Univerzitet u Kragujevcu - Prirodno-matematički fakultet, Kragujevac, 2006)
A feed-forward artificial neural network (ANN) model was used to predict the programmed-temperature retention indices RIs in the Lee index scale of polycyclic aromatic hydrocarbons (PAHs). The data used in this paper include ...