Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Cernak, Jozef"'
Autor:
Černák, Jozef
We have designed a computational model of a virus spread near the outbreak threshold. Using computer simulation we studied the Susceptible - Infected - Recovered (SIR) process where in consequence of a force of habit that is manifested by the populat
Externí odkaz:
http://arxiv.org/abs/2112.11923
Autor:
Černák, Jozef
Mina and Andersen, authors of the Perspectives in Science: COVID-19 Testing: One Size Does Not Fit All have referred to results and adopted conclusions from recently published governmental report Pavelka et al. "The effectiveness of population wide,
Externí odkaz:
http://arxiv.org/abs/2101.00613
Autor:
Černák, Jozef
An empirical relation indicates that an increase of living standard decreases the Total Fertility Rate (TFR), but this trend was broken in highly developed countries in 2005. The reversal of the TFR was associated with the continuous economic and soc
Externí odkaz:
http://arxiv.org/abs/1701.03481
Autor:
Černák, Jozef
Publikováno v:
Front. Phys. 5:11 (2017)
Is it possible to reverse the low total fertility rate (TFR) in the developed world? Using a hypothetical model of population we have analysed the decline of the TFR which have took place in the background of ongoing global economic changes, and a li
Externí odkaz:
http://arxiv.org/abs/1610.08956
Publikováno v:
J. Phys. D: Appl. Phys. 47 (2014) 335305
We have studied the magnetotransport of conical and disk-shaped nanocarbon particles in magnetic fields $\left|B\right|\leq9\:\mathrm{T}$ at temperatures $2\leq T\leq300\:\mathrm{K}$ to characterize electron scattering in a three dimensional disorder
Externí odkaz:
http://arxiv.org/abs/1311.5817
Publikováno v:
Physical Review B 87, 014434 (2013)
We have investigated the magnetic properties of carbon powders which consist of nanodisks, nanocones, and a small fraction of carbon-black particles. Magnetization measurements were carried out using a superconducting quantum interference device in m
Externí odkaz:
http://arxiv.org/abs/1203.0284
Autor:
Cernak, Jozef
The aim of this study is to investigate a wave dynamics and size scaling of avalanches which were created by the mathematical model {[}J. \v{C}ern\'ak Phys. Rev. E \textbf{65}, 046141 (2002)]. Numerical simulations were carried out on a two dimension
Externí odkaz:
http://arxiv.org/abs/0908.0318
Autor:
Černák, Jozef
I have proposed a\textit{non-Abelian}and stochastic self-organized criticality model in which each avalanche contains one stochastic site and all remaining sites in the avalanche are deterministic with a constant threshold $E_{c}^{I}$. Studies of ava
Externí odkaz:
http://arxiv.org/abs/0807.4113
Autor:
Černák, Jozef, Helgesen, Geir
We have experimentally investigated field induced aggregation of nonmagnetic particles confined in a magnetic fluid layer when rotating magnetic fields were applied. After application of a magnetic field rotating in the plane of the fluid layer, the
Externí odkaz:
http://arxiv.org/abs/0806.3447
Autor:
Cernak, Jozef
Publikováno v:
Physical Review E 73, 066125 (2006)
We study an inhomogeneous sandpile model in which two different toppling rules are defined. For any site only one rule is applied corresponding to either the Bak, Tang and Wiesenfeld model {[}P.Bak, C. Tang, and K. Wiesenfeld, Phys. Rev. Lett. \textb
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510326