Претраживање
Приказ резултата 11-20 од 37
Petroleum pollutant degradation by surface water microorganisms
(Springer Heidelberg, Heidelberg, 2006)
BACKGROUND: , Aims and Scope. It is well known that the composition of petroleum or some of its processing products changes in the environment mostly under the influence of microorganisms. A series of experiments was ...
Weed vegetation in the north-western Balkans: diversity and species composition
(Wiley, Hoboken, 2009)
P>Surveys of weed vegetation of the western Balkan peninsula (1939-2006) were used to study changes in species composition. A large data set of arable weed vegetation was compiled and analysed with direct and indirect ...
Composition and radical-scavenging activity of Thymus glabrescens Willd. (Lamiaceae) essential oil
(Wiley, Hoboken, 2008)
BACKGROUND: Knowledge about the chemical and therapeutic properties of Thymus glabrescens Willd. (Lamiaceae) is scarce and inconsistent. Therefore the main objectives of this study were to determine the yield and chemical ...
Microcalorimetry in the identification and characterization of the most reactive active sites of heterogeneous catalysts
(Springer/Plenum Publishers, New York, 2002)
The microcalorimetric technique has been applied to investigate the strongest active sites of zeolites, heteropolyacids and perovskites. The differential heats of adsorption of carbon monoxide, ammonia and oxygen were ...
Characterization and PCR-based typing of Xanthomonas campestris pv. vesicatoria from peppers and tomatoes in Serbia
(Springer, Dordrecht, 2004)
During the last two decades bacterial strains associated with necrotic leaf spots of pepper and tomato fruit spots were collected in Serbia. Twenty-eight strains isolated from pepper and six from tomato were characterized. ...
An analytical approach to the uniqueness problem of hot-wire probes to measure simultaneously three velocity components
(IOP Publishing Ltd, Bristol, 2004)
The uniqueness range of hot-wire probes to simultaneously measure all three velocity components is analysed analytically. Expressions defining the uniqueness cone half-angle are presented for triple as well as for quadruple ...
Effect of different fermentation parameters on bioethanol production from corn meal hydrolyzates by free and immobilized cells of Saccharomyces cerevisiae var. ellipsoideus
(Wiley, Hoboken, 2009)
BACKGROUND: Bioethanol produced from renewable biomass, such as corn meal, is a biofuel that is both renewable and environmentally friendly. Significant scientific and technological investments will be needed to achieve ...
Fish gills morphology as indicator of water quality - study of two small aquatic ecosystems
(Elsevier Science Inc, New York, 2007)
Heavy metals in soils: Distribution, relationship with soil characteristics and radionuclides and multivariate assessment of contamination sources
(Pergamon-Elsevier Science Ltd, Oxford, 2008)
The study is dealing with the distribution and the origin of heavy metals (Cd, Cr, Cu, Mn, Ni, Pb and Zn) in soils from a priori non-polluted areas. Positive correlations with organic matter and clay content but not with ...
Light transmission through fiber post: The effect on adhesion, elastic modulus and hardness of dual-cure resin cement
(Elsevier Sci Ltd, Oxford, 2009)
Objectives. The aim of this study was to investigate the effect of fiber post light transmitting ability to the continuity of resin cement-root dentin (C-RD) and resin cement-fiber post (C-FP) interface, elastic modulus ...