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Приказ резултата 211-220 од 221
Morphogenetic responses of embryo culture of wheat related to environment culture conditions of the explant donor plant
(Univ Sao Paolo, Cerquera Cesar, 2010)
Availability of immature embryos as explants to establish wheat (Triticum aestivum L.) by tissue culture can be limited by climatic factors and the lack of high quality embryos frequently hampers experimentation. This study ...
On delta-suitable elements in algebraic lattices
(Univerzitet u Nišu - Prirodno-matematički fakultet - Departmant za matematiku i informatiku, Niš, 2012)
In this paper we introduce new methods and results that can lead to the solution of a long-standing open problem of the representation of algebraic lattices by weak congruences. Here known criteria for ∆-suitable elements ...
New Type of Beer - Beer with Improved Functionality and Defined Pharmacodynamic Properties
(University of Zagreb, 2010)
The paper highlights the facts about the possibilities of improving the functionality of beer with extracts of thyme (Thymus vulgaris), lemon balm (Melissa officinalis) and mushroom Ganoderma lucidum. It briefly summarizes ...
A new species of Leipothrix (Acari : Prostigmata : Eriophyidae) on Dipsacus spp. in Europe and reassignment of two Epitrimerus spp. (Acari : Prostigmata : Eriophyidae) to the genus Leipothrix
(Entomological Society America, Lanham, 2007)
A new species of eriophyid mite, Leipothrix dipsacivagus n. sp. (Acaii: Prostigmata: Eriophyidae), collected from Dipsacus laciniatus L. (Dipsacaceae) and Dipsacusfullonuin L. in Serbia, Bulgaria, and France, is described ...
Influence of mechanical activation on structural and electrical properties of sintered MgTiO3 ceramics
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2009)
The aim of this work was to analyze the influence of mechanical activation on the MgCO3-TiO2 system. Mixtures of MgCO3-TiO2 were mechanically activated for 15, 30, 60 and 120 minutes in a planetary ball mill and after that ...
Application of the intergranular impedance model in correlating microstructure and electrical properties of doped BaTiO3
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2009)
Microstructure properties of barium-titanate based materials, expressed in grain boundary contacts, are of basic importance for electric properties of this material. In this study, the model of intergranular impedance ...
Solid Phase Microextraction as an Efficient Method for Characterization of the Interaction of Pesticides with Different Soil Types
(Sociedade Brasileira de Química, 2010)
A solid phase microextraction (SPME) method for simultaneous determination of 20 pesticides belonging to various pesticide groups in soil samples was developed. Extraction conditions, such as fibre type, desorption temperature ...
Benefits of Environmental Conditions for Growing Coriander in Banat Region, Serbia
(SAGE Publishing, 2011)
As one of the oldest multi-purpose plants (spice, aromatic, honey and medicinal), coriander is widespread across Europe. Although in Serbia there are favorable conditions fir its growth and development, it is grown on ...
Synthesis of BaTiO3 from a mechanically activated BaCO3-TiO2 system
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2008)
In this article the solid state reaction of BaTiO3 formation from a mechanically activated BaCO3-TiO2 system has been investigated. An equimolar mixture of BaCO3 and TiO2 powders was activated in a planetary ball mill in ...
Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2010)
Mixtures of MgO-TiO2 were mechanically activated using high-energy planetary ball mill during 5, 10, 20, 40, 80 and 120 minutes. Sintering process was preformed in air at 1100°-1400°C for 2h. The decrease in powder's ...