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Enthalpy-entropy compensation for n-hexane adsorption on HZSM-5 containing transition metal ions
(Academic Press Ltd- Elsevier Science Ltd, London, 2012)
In this work, the values of entropy changes related to n-hexane adsorption onto ion-exchanged ZSM-5 zeolites were calculated from differential heats, obtained from microcalorimetric experiments. The existence of enthalpy-entropy ...
Seasonal water pricing using meteorological data: case study of Belgrade
(Elsevier Sci Ltd, Oxford, 2012)
The paper presents a model of seasonal water pricing (SWP) aimed primarily at diminishing excessive fresh water use in the city of Belgrade. Seasonal prices are determined on meteorological observations of the average ...
CeO2-Nb2O5 mixed oxide catalysts: Preparation, characterization and catalytic activity in fructose dehydration reaction
(Elsevier Science Bv, Amsterdam, 2012)
In this work, ceria-niobia mixed oxides have been prepared by coprecipitation. The structural, textural, and surface properties of these materials have been fully characterized using appropriate techniques (low-temperature ...
Effectiveness assessment of agricultural machinery based on fuzzy sets theory
(Pergamon-Elsevier Science Ltd, Oxford, 2012)
The quality of service of agricultural machinery represents one of the basic factors for successful agricultural production. In this sense, there is a clear need for defining the exact indicator of the quality of these ...
Encapsulation of thyme (Thymus serpyllum L.) aqueous extract in calcium alginate beads
(Wiley, Hoboken, 2012)
BACKGROUND: Encapsulation of Thymus serpyllum L. aqueous extract within calcium alginate beads was studied in order to produce dosage formulations containing polyphenolic compounds. Electrostatic extrusion was applied for ...
Interpretation of hybrid x sowing date interaction for oil content and oil yield in sunflower
(Elsevier, Amsterdam, 2012)
Due to the presence of an interaction, it is often difficult to recommend which sunflower hybrids should be planted based on specific sowing dates or production regions. Through this study, the hybrid x sowing date (H x ...
Rhizome and root yield of the cultivated Arnica montana L., chemical composition and histochemical localization of essential oil
(Elsevier, Amsterdam, 2012)
Arnica montana (L) is a medicinal plant whose flower heads are widely used for the topical treatment of bruises and sprains in phytopharmaceutical preparations. Despite being cultivated for flower heads production for a ...
Microstructural properties of electrochemically prepared Ni-Fe-W powders
(Elsevier Science Sa, Lausanne, 2012)
A nanostructured Ni-Fe-W powder was obtained by electrodeposition from ammonium citrate electrolyte within the current density range of 500-1000 mA cm(-2) at the electrolyte temperature of 50 degrees C -70 degrees C. XRD ...
Yield and yield components of imidazolinone-resistant sunflower (Helianthus annuus L.) are influenced by pre-emergence herbicide and time of post-emergence weed removal
(Elsevier Science Bv, Amsterdam, 2012)
With an increase in the use of imidazolinone (IMI)-resistant sunflower, it is important to determine the influence of weed interference and herbicide presence on seed yield and yield components of sunflower. The objective ...
Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive
(Elsevier, Amsterdam, 2012)
Due to its outstanding electrical characteristics, such as the low temperature expansion coefficient, low dielectric constant and good mechanical properties, cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2), is a ...