Pretraživanje
Prikaz rezultata 1-10 od 51
Seasonal changes in condition, hepatosomatic index and parasitism in sterlet (Acipenser ruthenus L.)
(Scientific Technical Research Council Turkey-Tubitak, Ankara, 2009)
Measurements of biomarker responses in fish from contaminated sites could provide valuable data for environmental risk assessment. Biomarkers are sensitive to both environmental pollution and confounding factors that are ...
Labile fractions of soil organic carbon in mollisols from different climatic regions
(Pisa Univ Press, Pisa, 2009)
Characterization of Labile Fractions of Soil Organic Carbon in Mollisols from different climatic regions. The research studied the potential mineralization and characterization of labile SOM of different types of Mollisols: ...
Thermal diffusivity of sintered 12CaO x 7Al(2)O(3)
(Springer Heidelberg, Heidelberg, 2008)
The thermal diffusivity and free carrier diffusion coefficient of 12CaO x 7 Al2O3 ( C12A7) sintered for different times in air or hydrogen followed by treatment with UV light were determined from photoacoustic phase and ...
Variability of antioxidant enzyme activity and isoenzyme profile in needles of Serbian spruce (Picea omorika (Panc.) Purkinye)
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
Variations were studied of the activity and isoenzyme patterns of soluble peroxidase, catalase, catechol oxidase and superoxide dismutase, in needles of the Balkan endemic conifer Serbian spruce, Picea omorika (Panc.) ...
Combined FTIR and SEM-EDS study of Bi2O3 doped ZnO-SnO2 ceramics
(Wiley, Hoboken, 2008)
The effects of Bi2O3 addition on the phase composition, microstructure and optical properties of ZnO-SnO2 ceramics were investigated. Starting powders of ZnO and SnO2 were mixed in the molar ratio 2:1. After adding Bi2O3 ...
Far infrared properties of sintered Pb0.9Sn0.1Te doped with palladium
(Springer, New York, 2009)
Far infrared reflectivity spectra of sintered Pb0.9Sn0.1Te doped with 0.2 and 2 at.% Pd are measured. The experimental results are analyzed using a fitting procedure based on a modified plasmon-phonon interaction model. ...
Microstructural characterization of mechanicallyactivated ZnO powders
(Wiley, Hoboken, 2008)
In this paper, changes of microstructural characteristics of disperse systems during mechanical activation of zinc oxide (ZnO) have been investigated. ZnO powder was activated by grinding in a planetary ball mill in a ...
Micro-flow sensor for water using NTC thick film segmented thermistors
(Emerald Group Publishing Ltd, Bingley, 2009)
Purpose - The purpose of this paper is to apply negative thermal coefficient (NTC) thick film segmented thermistors (TFSTs) in a micro-flow sensor for water. Design/methodology/approach - A TFST is printed using NTC paste ...
Structural analysis of Zn2TiO4 doped with mgo
(Springer New York LLC, 2009)
The starting mixtures of ZnO, TiO2, and MgO (0, 1.25, and 2.5 wt.%) powders are mechanically activated in a high-energy planetary mill for 15 min and then sintered between 800 and 1100 degrees C for 2 h. The influence of ...
Deconvolution of lignin fluorescence spectra: A contribution to the comparative structural studies of lignins
(Maik Nauka/Interperiodica/Springer, New York, 2007)
In this work, we deconvoluted the fluorescence spectra of lignin and a lignin model compound using a combination of one symmetric ( Gaussian) and the most appropriate number of asymmetric (Log-normal) models. We aimed to ...