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Приказ резултата 31-40 од 1807
Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties
(Wiley-Blackwell Publishing, Inc, Malden, 2010)
In this article, ytterbium and erbium oxides are used as doping materials for barium titanate (BaTiO(3)) materials. The amphoteric behavior of these rare-earth ions leads to the increase of dielectric permittivity and ...
Histology of carp (cyprinus carpio, l.) Gills and pond water quality in semiintensive production
(Bulgarian Journal of Agricultural Science, 2010)
Gills of carp from ponds of the "Vrsacki ritovi" fish farm were studied, and the results discussed with reference to the results of physical and chemical properties of pond water. Subepithelial edema and gill hyperemia ...
Chemical Composition and Antimicrobial Activity of the Essential Oils of Micromeria thymifolia (Scop.) Fritsch., M. dalmatica Benth., and Satureja cuneifolia Ten. and Its Secretory Elements
(Taylor & Francis Inc, Philadelphia, 2010)
Light yellowish, pleasant-smelling essential oils were obtained in 0.3%, 1.3%, and 0.8% yields from the aerial parts of S. cuneifolia Ten., M. thymifolia (Scop.) Fritsch., and M. dalmatica Benth, respectively. Thirty-four ...
The investigation of phenol removal from aqueous solutions by zeolites as solid adsorbents
(Elsevier, Amsterdam, 2010)
This work reports results on phenol adsorption from aqueous solutions on synthetic BEA (beta) and MFI (ZSM-5) zeolites, studied by heat-flow microcalorimetry. For the sake of comparison, the adsorption was performed on ...
Synthesis, characterization and biological activities of N-heteroaromatic hydrazones and their complexes with Pd(II), Pt(II) and Cd(II)
(Springer, Dordrecht, 2010)
Condensation derivatives of ethyl hydrazinoacetate with 2-formylpyridine and quinoline-2-carboxaldehyde were synthesized. Pd(II), Pt(II) and Cd(II) complexes with the 2-formylpyridine derivative and a Cd(II) complex with ...
Mathematical model for the particle size distribution of a kieselguhr filter granulation
(Editura Stiintifica Fmr, Bucharest, 2012)
Diatomaceous Earth, also known as diatomite, diatomaceous silica, or kieselguhr is the material of natural origin which is composed of the skeletons of diatoms, single-celled algae, which are accumulated in huge beds. Some ...
Sorbus sp - New host of Erwinia amylovora in Serbia
(Int Soc Horticultural Science, Leuven 1, 2008)
In 1989 Erwinia amylovora was confirmed to be a pathogen of pear and quince in Serbia. Subsequently, apple, firethorn, hawthorn, Mespilus spp., Cotoneaster horisontalis and Cheanotneles spp. were confirmed as hosts of the ...
Immobilization of microbial cells for alcoholic and malolactic fermentation of wine and cider
(Encapsulation Technologies for Active Food Ingredients and Food Processing, 2010)
Wine-or cider-making is highly associated with biotechnology owing to the traditional nature of must fermentation. Nowadays, there have been considerable developments in wine-or cider-making techniques affecting all phases ...
One-Step Conversion of Ketones to Conjugated Acids Using Bromoform
(Taylor & Francis Inc, Philadelphia, 2009)
Phase-transfer-catalyzed (PTC) reactions of ketones with bromoform and aqueous lithium hydroxide in alcoholic solvent result in the formation of alpha,beta-unsaturated carboxylic acids. The reaction was performed at room ...
Traditional production and characteristics of Sjenica cheese and Pirot kachkaval
(Bulgarian Journal of Agricultural Science, 2011)
In this paper, principles of traditional production and main characteristics of Sjenica cheese and Pirot kachkaval are presented. Sjenica cheese belongs to the group of soft, white cheeses in brine and it is produced as ...