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Now showing items 31-40 of 142
Bio-activities of extracts from some axenically farmed and naturally grown bryophytes
(Academic Journals, Victoria Island, 2011)
The antifungal activity of dimethyl sulfoxide (DMSO) extracts of three bryophyte species, two mosses (Atrichum undulatum (Hedw.) P. Beauv., Physcomitrella patens (Hedw.) Bruch and Schimp) and a liverwort (Marchantia ...
Engineering carbon chains from mechanically stretched graphene-based materials
(Amer Physical Soc, College Pk, 2011)
The electrical response of graphene-based materials can be tailored under mechanical stress. We report different switching behaviors that take place in mechanically deformed graphene nanoribbons prior to the breakage of ...
Robust electronic and transport properties of graphene break nanojunctions
(Amer Physical Soc, College Pk, 2011)
We report a systematic research on structural, electronic, and transport properties of a variety of graphene nanoribbon (GNR) break junctions, with different widths and edge chiralities. Our extensive molecular dynamics ...
The role of EPR spectroscopy in studies of the oxidative status of biological systems and the antioxidative properties of various compounds
(Srpsko hemijsko društvo, Beograd, 2011)
In this era of intense study of free radicals and antioxidants, electron paramagnetic resonance (EPR) is arguably the best-suited technique for such research, particularly when considering biochemical and biological systems. ...
A novel platinum-based nanocatalyst at a niobia-doped titania support for the hydrogen oxidation reaction
(Srpsko hemijsko društvo, Beograd, 2011)
The kinetics of the hydrogen oxidation reaction (HOR) was studied at Pt nanoparticles supported on niobia-doped titania (Pt/N-T). The catalyst support, with the composition of 0.05NbO(2.5-delta)-0.995TiO(2) (0 lt delta ...
Influence of the ratio between Ni and BaCe0 9Y0 1O3-delta on microstructural and electrical properties of proton conducting Ni-BaCe0 Y-9(0) O-1(3-delta) anodes
(Elsevier Science Sa, Lausanne, 2011)
Cermet anode substrates Ni-BaCe0 9Y0 1O3-delta (Ni-BCY10) with varied ratios between Ni and BCY10 were prepared BCY10 powders were prepared by the citrate-nitrate auto-combustion method and anode substrates were prepared ...
Structural and magnetic properties of nanocrystalline bismuth manganite obtained by mechanochemical synthesis
(Springer, Dordrecht, 2011)
We have studied the formation of BiMnO3 (BMO) nanocrystalline perovskite powder produced by high-energy milling of the constituent oxides. The crystal structure and the amount of crystalline and amorphous phases in the ...
Optimization of electrolytic process of formation of open and porous copper electrodes by the pulsating current (PC) regime
(Elsevier Science Sa, Lausanne, 2011)
Optimization of process of formation of open and porous copper electrodes, denoted as the honeycomb-like ones, by the regime of pulsating current (PC) is considered. The square-waves PC were consisted of the same amplitude ...
Defect induced variation in vibrational and optoelectronic properties of nanocrystalline ZnO powders
(Amer Inst Physics, Melville, 2011)
Structural disorder of ZnO nanopowders with mean crystallite size down to 15 nm, produced by mechanical activation in high energy mills, has been analyzed by x-ray diffraction and Raman spectroscopy. The influence of such ...
Structural organisation of the wood polymers in the wood fibre structure
(China Light Industry Press, Beijing, 2011)
The organisation of the major polymers in the wood fibre structure has a large impact on the properties of the structure. Numerous studies have been devoted to the cellulose microfibril arrangement, the structure providing ...