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Your search keyword '"Miljković V."' showing total 2 results
Start Over Author "Miljković V." Publisher elsevier b.v.
2 results on '"Miljković V."'

1. Statistics of the two self-avoiding random walks on the three-dimensional fractal lattices

Author

Živić, I., Miljković, V., and Milošević, S.

Subjects
*RANDOM walks, *NUMERICAL analysis, *MATHEMATICAL analysis, *MATHEMATICAL physics
Abstract

Abstract: We present results of the effects of interpenetration of two interacting self-avoiding walks that take place in a member of a three-dimensional Sierpinski Gasket (SG) fractal family. We focus our attention on finding number of point contacts between the two SAW paths, which turns out to be a set of power laws whose characteristics depend predominantly on the given interactions between SAW steps. To establish statistics of the defining model, we apply an exact Renormalization Group Method for the few members of the SG fractal family, as well as a Monte Carlo RG method for . The phase diagrams have been established and relevant values of the contact critical exponents, associated with the two-path mutual contacts, are determined. [Copyright &y& Elsevier]

Published
2007
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2. Dynamics of beryllium-7 specific activity in relation to meteorological variables, tropopause height, teleconnection indices and sunspot number.

Author

Sarvan, D., Stratimirović, Đ., Blesić, S., Djurdjevic, V., Miljković, V., and Ajtić, J.

Subjects
*BERYLLIUM, *TROPOPAUSE, *TELECONNECTIONS (Climatology), *SUNSPOTS, *AUTOCORRELATION (Statistics), *METEOROLOGICAL precipitation
Abstract

The dynamics of the beryllium-7 specific activity in surface air over 1987–2011 is analyzed using wavelet transform (WT) analysis and time-dependent detrended moving average (tdDMA) method. WT analysis gives four periodicities in the beryllium-7 specific activity: one month, three months, one year, and three years. These intervals are further used in tdDMA to calculate local autocorrelation exponents for precipitation, tropopause height and teleconnection indices. Our results show that these parameters share common periods with the beryllium-7 surface concentration. tdDMA method indicates that on the characteristic intervals of one year and shorter, the beryllium-7 specific activity is strongly autocorrelated. On the three-year interval, the beryllium-7 specific activity shows periods of anticorrelation, implying slow changes in its dynamics that become evident only over a prolonged period of time. A comparison of the Hurst exponents of all the variables on the one- and three-year intervals suggest some similarities in their dynamics. Overall, a good agreement in the behavior of the teleconnection indices and specific activity of beryllium-7 in surface air is noted. [ABSTRACT FROM AUTHOR]

Published
2017
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