Претраживање
Приказ резултата 11-20 од 228
Effect of UV/ozone treatment on the nanoscale surface properties of gold implanted polyethylene
(Elsevier, 2014)
The effect of ultraviolet (UV) ozone treatment on the surface properties of gold implanted high density polyethylene (HDPE) was investigated at a nanoscale using Atomic Force Microscopy (AFM). HDPE samples were modified ...
Characterization of nanoporous carbon fibrous materials obtained by chemical activation of plane tree seed under ultrasonic irradiation
(Elsevier, 2014)
An ultrasonic irradiation was applied for the impregnation by chemical agents in the chemical activation process of new type of active carbon precursor. Plane tree seed, due to the unique fibrous structure and low cost is ...
Biomimetic synthesis and properties of cellular SiC
(Elsevier Sci Ltd, Oxford, 2014)
Biomorphous beta-SiC ceramics were produced from several species of wood such as ash, wild cherry, black alder, Persian walnut, sessile oak and European hornbeam. The wood was pyrolysed, impregnated with tetraethyl ...
Fluctuations of the number of adsorbed molecules due to adsorption-desorption processes coupled with mass transfer and surface diffusion in bio/chemical MEMS sensors
(Elsevier, 2014)
In this study we have developed, for the first time, the comprehensive theoretical model of the fluctuations of the number of adsorbed molecules in MEMS chemical and biological sensors, taking into account the processes ...
Insight into the Effect of Sn on CO and Formic Acid Oxidation at PtSn Catalysts
(American Chemical Society (ACS), 2014)
The role of Sn on the catalytic activity for CO and formic acid oxidation is studied by comparing the activities of differently treated PtSn/C and Pt/C catalysts. The catalysts are prepared by a microwave-assisted polyol ...
Freshwater environmental quality parameters of man-made lakes of Serbia
(Springer, Dordrecht, 2014)
In this study, 28 lakes were selected from the freshwater resources of the network of man-made lakes throughout the Vojvodina Province and the central part of Serbia. Samples were analyzed for the physicochemicals indicators ...
Improved Performance of Multilayer CPW Inductors on Flexible Substrate
(Ieee-Inst Electrical Electronics Engineers Inc, Piscataway, 2014)
In this paper, we present the modeling, fabrication, measurement techniques, and characterization results of multilayer miniature coplanar waveguide (CPW) meander-type inductors for high-frequency applications. Detailed ...
Removal of Tc-99(VII) by organo-modified bentonite
(Elsevier, 2014)
(99)Technetium is one of the largest components of nuclear waste material. In aqueous solutions Tc-99 is present as the pertechnetate oxoanion, (TcO4-)-Tc-99, which is highly soluble and mobile in groundwater under oxidizing ...
On the structures of 5-(4-, 3-and 2-methoxyphenylazo)-3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone: An experimental and theoretical study
(Elsevier Sci Ltd, Oxford, 2014)
In this work, a combined experimental and theoretical study on the structures of methoxy substituted 5-phenylazo-3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridones has been reported. The dyes under the investigation have been ...
Natural and anthropogenic factors affecting the groundwater quality in Serbia
(Elsevier, 2014)
Various chemometric techniques were used to analyze the quality of groundwater data sets. Seventeen water quality parameters: the cations Na, K, Ca, Mg, the anions Cl, SO4, NO3, HCO3 and nine trace elements Pb, As, Mn, Ni, ...