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Isolation of essential oil and supercritical carbon dioxide extract of Juniperus communis L. fruits from Montenegro
(John Wiley and Sons Ltd, 2006)
Ripe fruits (berries) of common juniper (Juniperus communis L.) from northern Montenegro were extracted by hydrodistillation and by supercritical carbon dioxide (SC-CO2) in a single-stage separation system. The composition ...
Processing of ferroelectric thin layers of barium titanate by the sol-gel method
(Physics and Chemistry of Glasses, 2005)
The influence of various processing parameters is investigated during sol formation (metal precursors: titanium (IV) butoxide, barium hydroxide, barium acetate; pH of sol solution; type and amount of stabiliser and solvent; ...
Nanostructured sodium niobate obtained by glass crystallization
(Elsevier Science Sa, Lausanne, 2004)
The subject of this work was to obtain nanostructured sodium niobate crystals by a controlled crystallization method from glasses. The glass samples of the composition within the system NaNbO3-SiO2-Al2O3 were prepared by ...
Structural analysis of abrasive composite materials with nonwoven textile matrix
(Elsevier B.V., 2004)
The goal of this research was to design the novel composite material based on nonwoven textile material (NTM) while using the existing production facilities. The chosen product was abrasive composite material with nonwoven ...
Methyl methacrylate and acrylamide crosslinked macroporous copolymers
(Journal of Applied Polymer Science, 2004)
In this work the synthesis of a crosslinked macroporous copolymer was effected from methyl methacrylate and acrylamide. The synthesis process began with emulsion prepolymerization, followed by sol-gel copolymerization until ...
A kinetic study of the thermal degradation of 3-methylaminopropylamine inside AlPO4-21
(Springer, Dordrecht, 2007)
Kinetics of the thermal decomposition of 3-methylaminopropylamine which was used as a structure-directing agent in the synthesis of AlPO4-21 has been studied under isothermal and non-isothermal conditions. The decomposition ...
Digitally graded GaAs/Al0.44Ga0.56As quantum-cascade laser
(Elsevier, Amsterdam, 2003)
A method for the optimal design and realization of a GaAs/Al0.44Ga0.56As quantum-cascade laser (QCL) is presented. Firstly, an optimal, smooth active region profile is derived, using inverse spectral theory. A digitally ...
Glass formation and crystallisation behaviour of nanostructured sodium niobate by direct glass crystallisation
(Physics and Chemistry of Glasses, 2005)
The subject of this work is the study of nanostructured sodium niobate obtained by a controlled crystallisation of glass. The glass samples of the composition within the system NaNbO3-SiO2-Al2O3 were prepared by melting ...
Chitosan application on wool before enzymatic treatment
(Wiley Periodicals, Inc., 2005)
The influence of a chitosan application on wool fabric before a treatment with a proteolytic enzyme has been investigated. The enzymatic treatment enhances whiteness and confers shrink resistance to wool, but an increase ...
Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics
(Kluwer Academic Publishers, 2004)
Mechanochemical synthesis was applied to obtain nanocrystalline powders of composition Pb(Zr0.52Ti0.48)O-3 (PZT). Milling was performed in a planetary ball mill using vials and balls made of zirconia or steel-in order to ...