Претраживање
Приказ резултата 1-10 од 273
Complexes of iron(II), iron(III) and zinc(II) with condensation derivatives of 2-acetylpyridine and oxalic or malonic dihydrazide. Crystal structure of tris[(1-(2-pyridyl)ethylidene)hydrazine]iron(II) perchlorate
(Springer, Dordrecht, 2005)
Complexes of zinc and iron with N', N'(2)- bis[(1E)-1-(2-pyridyl) ethylidene] ethanedihydrazide (H(2)L1) and N', N'(2)-bis[( 1E)-1-(2-pyridyl) ethylidene] propanedihydrazide (H(2)L2) were prepared. Zn-II complexes with ...
Modern wheat combine harvesters under conditions of PKB beograd
(Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb, 2005)
The goal of the investigation was to analyze parameters and indicators of performance for modern combine harvesters, under conditions of PKB Corporation, as a basis to review the possibility for improved performance, ...
Description of male Xiphinema densispinatum from Serbia (Nematoda : Longidoridae)
(Brill Academic Publishers, Leiden, 2007)
Cell immobilization: past, present and future prospects
(Wiley, Hoboken, 2006)
Influence of mechanical activation on the structure of ultrafine BaTiO3 powders
(Elsevier Science Sa, Lausanne, 2009)
The influence of mechanical activation in a planetary ball mill on the change of the structure of BaTiO3 powders has been investigated. The particle size distribution of the nonactivated and activated samples was measured ...
Transformation of petroleum saturated hydrocarbons during soil bioremediation experiments
(Water, Air, and Soil Pollution, 2008)
This paper presents transformations of saturated hydrocarbons of petroleum type pollutants during ex situ bioremediation of soil on the pilot heap (halde), during a period of 6 months, within the grounds of Petroleum ...
The Effect of Dietary Selenium Source and Level on Hen Production and Egg Selenium Concentration
(Humana Press Inc, Totowa, 2009)
A 16-week experiment was conducted to compare effects of various levels of sodium selenite (SS) and Se-enriched yeast (SY), on the whole-egg Se content and hen's productivity. One hundred Shaver 579 hens, 27 weeks old, ...
Nectar secretion in basil (Ocimum basilicum L.) grown in different soil conditions
(Journal of Apicultural Research, 2008)
Nectar production in three melliferous species of Lamiaceae in natural and experimental conditions
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2004)
The nectar production of Lamium maculatum, Lamiastrum galeobdolon and Ajuga reptans was evaluated by determining the Index of nectar production (INP), total nectar quantity per flower during 24h, nectar sugar concentration, ...
A novel tandem process leading to functionalized glutarimides
(Pergamon-Elsevier Science Ltd, Oxford, 2005)
The synthesis of various functionalized or spirobicyclic glutarimides by a novel tandem process has been disclosed. The reaction involves a base-catalyzed Michael addition of active methylene compounds to secondary conjugated ...