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Приказ резултата 11-20 од 32
The analysis of forming PVB-SiO2 nanocomposite fibers by the electrospinning process / Analiza formiranja PVB-SiO2 nanokompozitnih vlakana pomoću elektrospining procesa
(Vojnotehnički institut, Beograd, 2011)
The poly (vinyl butyral)-silica (PVB-SiO2) nanofibers were obtained by the electrospinning process. The experiments were carried out with PVB solution in concentration of 10 wt.% where ethanol was used as the solvent. The ...
Influence of picosecond laser pulses on the microstructure of austenitic materials
(Springer, New York, 2011)
We investigate samples of austenitic materials - stainless steel and iron-based superalloy - which are widely used at high temperatures and pressures. The samples were exposed to Nd(3+):YAG laser pulses with a wavelength ...
Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
This work describes radiolytic synthesis of silver nanoparticles (Ag NPs) within the poly(N-vinyl-2-pyrrolidone) (PVP) hydrogel. The hydrogel matrix was obtained by gamma irradiation-induced cross-linking, while the in ...
The formation of oxide nanoparticles on the surface of natural clinoptilolite
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
Nanoparticles of NiO, ZnO and Cu(2)O crystallize when the Ni-, Zn- and Cu-exchanged natural clinoptilolite, respectively, are dehydrated by heating in air at 550 degrees C. The dehydration of Mn-exchanged clinoptilolite ...
Application of electrochemical methods for the investigation of intergranular corrosion of welded joint of austenitic stainless steel 19cr-9ni
(Savez hemijskih inženjera, Beograd, 2011)
The sensitization degree of austenitic stainless steel welded joints was investigated by electrochemical methods of the double loop electrochemical potentiokinetic reactivation (DL EPR) in H(2)SO(4) + KSCN solution, and ...
A study of the removal of copper ions from aqueous solution using clinoptilolite from Serbia
(Springer, New York, 2011)
Toxic metal contamination of waste waters can be mitigated by metal adsorption to clay and zeolitic minerals, but in developing countries such environmental remediation can be cost prohibitive if these minerals are not ...
Influence of Microwave Heating on the Polymerization Kinetics and Application Properties of the PMMA Dental Materials
(Wiley, Hoboken, 2011)
The effects of heating mode (conventional isothermal heating (CIH) and microwave isothermal heating (MWIH) on the kinetics of polymerization and the properties important for the application (residual monomer, hardness, and ...
The enzyme separation plant modelling, design and optimization
(International Journal of Mathematical Models and Methods in Applied Sciences, 2011)
A new approach for plant model building was illustrated. The use of flowsheeting in design, however, differs from its use in operations and this should be reflected in the development of the simulation procedure. In design, ...
Assessment of Safety Valve Springs Failure
(Materials Research Society of Serbia, Srbija, 2011)
The aim was to investigate the cause of failure of as-received ultra-high strength steel springs,
which were deposite-coated. The qualitative analysis of surrounding environment was performed.
Springs were visually and ...
Analysis of floating-head heat exchanger bolts failure
(Timisoara, Romania, 2011)
As-received floating-head heat exchanger bolts were broken (BB) and deposite-coated. The aim was to estimate
a cause of their failure. The new bolts of the same material were used as a reference material (reference bolt ...