Претраживање
Приказ резултата 21-30 од 54
The influence of water molecule coordination to a metal ion on water hydrogen bonds
(Royal Soc Chemistry, Cambridge, 2012)
The geometry of hydrogen bonds in the crystal structures from the Cambridge Structural Database and calculated data show that water coordination to a metal ion has a remarkable influence on hydrogen bonds. The calculated ...
Visualisation of the interaction between Acidithiobacillus ferrooxidans and oil shale by atomic force microscopy
(Technical Faculty, Bor-Serbia, Bor, 2012)
This study visually documents the mechanical contact and interaction between the bacterial cells of two biogeocenotically different strains of Acidithiobacillus ferrooxidans (At. ferrooxidans) and oil shale containing ...
Core-shell structured tungsten-tungsten carbide as a Pt catalyst support and its activity for methanol electrooxidation
(Oxford : Pergamon-Elsevier Science Ltd, 2012)
Tungsten carbide was synthesized by calcination of carbon cryogel containing tungsten in a form of metatungstate. Characterization by X-ray diffraction and transmission electron microscopy indicated core-shell structure ...
Fine-tuning the feature size of nanoporous silver
(Royal Soc Chemistry, Cambridge, 2012)
We show that the characteristic ligament size of nanoporous Ag synthesized by chemical dissolution of Al from Ag-Al alloys can be tuned from the current submicrometer size (similar to 100-500 nm) down to a much smaller ...
Remote electron plasmon polaron in graphene
(Amer Physical Soc, College Pk, 2012)
The Coulomb interaction and the correlation of a remote electron with a single layer of graphene is investigated in the presence of a magnetic field applied perpendicular to the graphene layer. The remote electron polarizes ...
Surface modification of polyethylene by Ag+ and Au+ ion implantation observed by phase imaging atomic force microscopy
(Elsevier, 2012)
High density polyethylene (HDPE) has been modified by Ag+ and Au+ ion implantation with the energy of 60 and 200 keV, respectively. The doses of implanted silver and gold ions were as follows: 1 x 10(15), 5 x 10(15) and 1 ...
Arsenic in drinking water and acute coronary syndrome in Zrenjanin municipality, Serbia
(Academic Press Inc Elsevier Science, San Diego, 2012)
Background: Arsenic is constantly present in drinking water supply systems of Zrenjanin municipality across decades. It presents a great public health problem in Serbia, but its relationship with acute coronary syndrome ...
Deposition of silver ions onto DBD and DCSBD plasma treated nonwoven polypropylene
(Elsevier, 2012)
The aim of this work is plasma activation of nonwoven polypropylene (PP) using two different ambient air plasma sources: volume dielectric barrier discharge (DBD) and diffuse coplanar surface barrier discharge (DCSBD) and ...
Serum amyloid A isoforms in serum and milk from cows with Staphylococcus aureus subclinical mastitis
(Elsevier, 2012)
Serum amyloid A proteins (SAA) are very sensitive acute phase proteins, displaying multiple isoforms in plasma and different body fluids. They are currently under investigation as biomarkers of diseases. The aim of the ...
Catalysis of oxygen reduction on Au modified by Pd nanoislands in perchloric acid solution
(Oxford : Pergamon-Elsevier Science Ltd, 2012)
Oxygen reduction reaction (ORR) was studied on polycrystalline gold, Au(poly), modified by nanosized palladium islands in 0.1 M HClO4 solution using rotating disc electrode technique. Paladium was spontaneously deposited ...