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The effects of working parameters and tillage quality on rotary tiller specific work requirement
(Academic Journals, Victoria Island, 2011)
The aim of this paper was to analyze the influence of rotary tiller rotor rotation direction on specific work requirement (SWPTO). The SWPTO was calculated by measuring the power take-off (PTO) torque, PTO speed, working ...
Numerical Study of Convective Water Desorption from the Polystyrene Cation Resin CG-8
(Wiley-Blackwell, Malden, 2011)
A mathematical model was developed to evaluate the influence of structural and operational factors on convective desorption processes (desorption of a liquid from capillary-porous material). The possibility to utilize this ...
A new Aceria species (Acari: Eriophyoidea) on Echinops ritro L. subsp ruthenicus (M.Bieb.) Nyman (Asteraceae) from Serbia and a supplement to the original description of Aceria brevicincta (Nalepa 1898)
(Magnolia Press, Auckland, 2011)
A new species of eriophyoid mite, Aceria banatica n. sp. inhabiting Echinops ritro L. subsp. ruthenicus (M.Bieb.) Nyman has been described from Serbia. A comparison of characters between A. banatica n. sp. and Aceria ...
Non-native and translocated fish species in Serbia and their impact on the native ichthyofauna
(Springer, Dordrecht, 2011)
A total of 22 fish species have been introduced into the inland waters of Serbia, either intentionally or accidentally. This paper provides a summary of data concerning time and reason of introduction, mode of expansion, ...
Antioxidative and immunomodulating activities of polysaccharide extracts of the medicinal mushrooms Agaricus bisporus, Agaricus brasiliensis, Ganoderma lucidum and Phellinus linteus
(Elsevier Sci Ltd, Oxford, 2011)
Partially purified polysaccharides were obtained from four medicinal mushroom species, Agaricus bisporus, Agaricus brasiliensis, Phellinus linteus and Ganoderma lucidum by hot water extraction, followed by ethanol ...
Comparison of structural, textural and thermal characteristics of pure and acid treated bentonites from Aleksinac and Petrovac (Serbia)
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
Bentonite samples collected from vicinity of Petrovac and Aleksinac were treated with different sulfuric acid molarities. Acid attack dissolved the octahedral sheets by interlayer and edge attack. The effects of the H2SO4 ...
Energy-saving estimation model for hypermarket HVAC systems applications
(Elsevier Science Sa, Lausanne, 2011)
Energy saving estimation model (ESEM) use normal distribution (Gaussian) probability theory to predict potential savings for previously determined system improvements. Those improvements are low/high cost investments based ...
Effects of nitrogen and harvesting time on chemical composition of biomass of Sudan grass, fodder sorghum, and their hybrid
(Tubitak Scientific & Technical Research Council Turkey, Ankara, 2011)
The subject of this study is 2-year variability research (2007 and 2008) of the chemical composition of naturally dried biomass samples of 3 different sorghum species, which are widely used in the southeast Balkans. Samples ...
Decision making analysis of walnut seedling production on a small family farm in Serbia
(Academic Journals, Victoria Island, 2011)
The wide range of walnut application makes it one of the most appreciated fruit species. In 2008, Serbian government started providing subsidies for every planted walnut seedling. These incentives have already increased ...
Synthesis and Characterization of Novel Urethane-Siloxane Copolymers with a High Content of PCL-PDMS-PCL Segments
(Wiley-Blackwell, Hoboken, 2011)
Novel polyurethane copolymers derived from 4,4'-methylenediphenyl diisocyanate (MDI), 1,4-butanediol (BD) and alpha, omega-dihydroxy-[poly(caprolactone)-poly (dimethylsiloxane)-poly(caprolactone)] (a, x-dihydroxy( ...