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Приказ резултата 141-150 од 157
One-dimensional random walk of nanosized liquid Pb inclusions on dislocations in Al
(Taylor & Francis, 2004)
Migration of nanosized liquid Pb inclusions attached to dislocations in Al
has been observed during in-situ transmission electron microscopy heating
experiments and monitored by real-time video recordings. The movements ...
Comparison of training algorithms in neural network modeling of gamma spectrometric uncertainty
(Belgrade : The Society of Physical Chemists of Serbia, 2004)
A three-layer feed-forward artificial neural network with six different algorithms applied on different training sets was used to model uncertainties of activity
levels of eight radionuclides (226Ra, 238
U, 235
U, 40K, ...
The effect of the particle shape and structure on the flowability of electrolytic copper powder, III: A model of the surface of a representative particle of flowing copper powder electrodeposited by reversing current / Uticaj oblika I strukture čestica na tečljivost elektrolitičkog bakarnog praha III - model površine reprezentativne čestice tečljivog bakarnog praha dobijenog elektohemijskim taloženjem reversnom strujom
(Serbian Chemical Society, 2004)
The structure of the surface of copper powder particles is discussed and correlated with the lowest apparent density at which copper powder can still flow. It is shown that such structures can be easily obtained in the ...
Underpotential deposition of hydrogen on MoPt 4 intermetallic phase in acid solution: Temperature dependence
(Elsevier Ltd, 2004)
Potentiodynamic studies of the underpotential deposition of hydrogen (H upd ) on MoPt 4 electrode in 0.5 mol dm -3 HClO 4 aqueous solution in the range of temperature from 275 to 312 K are made and thermodynamic state ...
Stability of the chevron domain at triple-line reconstructions
(American Physical Society, 2004)
The line of emergence of a grain boundary at the surface of a face centered cubic crystal may decompose into a nanoscale triangular prism with a chevronlike structure. This behavior has been found in gold, and we address ...
The structure directing role of 1,3-diaminopropane in the hydrothermal synthesis of iron(III) phosphate
(Srpsko hemijsko društvo, Beograd, 2004)
13-Diaminopropane (DAP) was used as a structure-directing agent for the hydrothermal synthesis of an organically templated iron phosphate. During crystallization at 180 degreesC, iron phosphate (FePO-DAP) with a layered ...
Optimization of a neural network model for signal-to-background prediction in gamma-ray spectrometry
(Belgrade : Vinča Institute of Nuclear Sciences, 2004)
The artificial neural network (ANN) model was optimized for the prediction of signal-tobackground (SBR) ratio as a function of the measurement time in gamma-ray
spectrometry. The network parameters: learning rate (α), ...
Characterization of carbon cryogel synthesized by sol-gel polycondensation and freeze-drying
(Carbon, 2004)
Resorcinol-formaldehyde (RF) cryogels were synthesized by sol-gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogels were obtained by pyrolyzing RF cryogels ...
MS analysis of biindenylidenes / MS analiza biindenilidena
(Serbian Chemical Society, Belgrade, 2004)
Biindenylidene isomers are components of pyrolysis oils. The mass spectra were recorded and the fragmentation of the following biindenylidene isomers (E)-2,3,2’,3’-tetrahydro- [1,1’]biindenylidene (Z)-2,3,2’,3’-tetrahydr ...
The effect of the mass ratio of hard and soft segments on some properties of thermoplastic poly(ester-siloxane)s
(John Wiley and Sons Ltd, 2004)
A series of thermoplastic elastomers based on soft polydimethylsiloxane (PDMS) and hard poly(butylene terephthalate) (PBT) segments was synthesized using a two-step transesterification reaction in the melt. The molar mass ...