Now showing items 101-110 of 1117
Strategies for the Scientific Progress of the Developing Countries in the New Millennium: The cases of Serbia, Slovenia and South Korea
(Universität Dortmund, 2010)
The quality and significance of scientific research in any society could be used as mirrors of its prosperity. By comparing two cases of prosperous scientific management, of South Korea and Slovenia, with the problems of ...
Study of dielectric behavior and electrical properties of hematite α-Fe2O3 doped with Zn
(Belgrade : International Institute for the Science of Sintering, 2012)
The effects of Zn-doping on the dielectric behavior and electrical properties of bulk α-Fe2O3 have been studied. X-ray diffraction analysis revealed the presence of two phases in all samples: hematite and spinel ZnFe2O4, ...
Scanning electron microscopy study of changes in nanoparticles surface under in vitro simulated physiological conditions
(Belgrade : Materials Research Society of Serbia, 2013)
In this study we observed the changes in surface of nanoparticles of two different nanomaterials, cobalt-substituted hydroxyapatite (CoHAp) and calcium phosphate/poly-(DLlactide-co-glycolide) (CP/PLGA) that occurred under ...
Optical far infrared properties of FeS2
(Bucharest: Integra Natura Omnia et Aeterna, 2010)
In this paper are presented the far-infrared reflectivity spectra for a cleaved FeS 2 sample measured at roam temperature and at 77 K.
Reliable low-cost experimental setup for material synthesis modification by applying alternating electric fields
(Belgrade : Institute of Technical Sciences of SASA, 2015)
Building of laboratory hardware in-house can reduce overall equipment costs and respond to the specific requirements of the experiment. The aim of this contribution is to present the novel design and implementation of the ...
Novel membrane-supported hydrogel for removal of heavy metals
Polyethersulfone membranes with integrated negatively-charged hydrogel of crosslinked poly(acrylamido-2-methylpropane sulfonic acid) were prepared by a combination of a liquid phase inversion process with photopolymerization ...
Electrical Characteristics of Ho doped BaTiO3 Ceramics
(Belgrade : Serbian Ceramic Society, 2019)
In this paper, electrical characteristics of Ho2O3 doped BaTiO3 ceramics were shown, using new method for measuring samples. The BaTiO3 doped samples were sintered at 1320°C for 4 hours. The concentration of the additives ...
X-ray spectra, electron structure and physical properties of the Ce2ScSi2 and СеScSi compounds
(Belgrade : Materials Research Society of Serbia, 2019)
Energy structure of the valence band of the Ce2ScSi2 and СеScSi compounds was studied by the methods of the high-energy spectroscopy (XPS, XES and XAS). Dependence of magnetic susceptibility χ(Т) of the Ce2ScSi2 compound ...
Structural characterization and electrical properties of sintered magnesium-titanate ceramics
(Belgrade : Materials Research Society of Serbia, 2012)
In this article the influence of ball milling process on structure of MgO-TiO2 system, along with its influence on electrical properties of post-sintering samples, were investigated. Mixtures of MgO-TiO2 powders were ...
Sintering of Defect-Free BaTi0.975Sn0.025O3/BaTi0.85Sn0.15O3 Functionally Graded Materials
(Hoboken, NJ : John Wiley & Sons, 2011)
Shrinkage anisotropy could be one of the reasons of deformation during densification of functionally graded materials (FGMs). In this study we calculated coefficient of shrinkage anisotropy during sintering of BTS2.5/BTS15 ...