Temat: 05.10.-a - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Research of Particle Transport with External Driving Force and Entropy Barrier
Autorzy:: Li, S.
Zhang, Z.
Chen, D.
Powiązania:: https://bibliotekanauki.pl/articles/1398914.pdf
Data publikacji:: 2016-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 05.40.Jc
05.40.-a
05.10.Gg
05.60.Cd
Opis:: Transport of Brownian particle moving along a three-dimensional throat-like channel is investigated in the presence of an external constant force. The solution of the Fick-Jacobs equation in the situation is solved, and the probability current density and particle current describing the motion of particle are obtained. It is found that entropy barrier and external force can reverse the direction of particle current. The motion of Brownian particle can be tuned by the entropy barrier and the external force.
Źródło:: Acta Physica Polonica A; 2016, 129, 6; 1105-1108
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Fatigue Test with Stochastic Differential Equation Modeling
Autorzy:: Eroglu, E.
Guney, I.
Gunes, I.
Powiązania:: https://bibliotekanauki.pl/articles/1490739.pdf
Data publikacji:: 2012-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 05.10.Gg
81.40.Np
05.45.-a
Opis:: In this study, a mathematically polymeric insulator material is modeled which is used as a solid insulator in the industry. ASTM D 2303 in inclined plane test method is utilized in order to observe mechanical effect of vibration. The materials have different deformation times before they are fatigued or not fatigued. Our goal is the mathematical model which has materials at progressive times.
Źródło:: Acta Physica Polonica A; 2012, 121, 1; 36-38
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Effect of Stochastic Dynamics on the Nuclear Magnetic Resonance in a Field Gradient
Autorzy:: Tóthová, J.
Lisý, V.
Powiązania:: https://bibliotekanauki.pl/articles/1032635.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.60.-k
76.60.Lz
05.40.-a
05.10.Gg
Opis:: In the present contribution, the attenuation function S(t) for an ensemble of spins in a magnetic-field gradient is calculated through an accumulation of the phase shifts in the rotating frame resulting from the changes of the particle displacements. The found S(t) is applicable for any kind of the stochastic motion of spins, including their non-Markovian dynamics with memory. Depending on the considered system, both the classical expressions valid for normal diffusion at long times and new formulae for the short-time Brownian motion can be obtained. Our method is also applicable to the NMR pulse sequences based on the refocusing principle. This is demonstrated by describing the spin echo experiment developed by Hahn.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 1111-1113
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Interplay between endogenous and exogenous fluctuations in financial markets
Autorzy:: Gontis, V.
Powiązania:: https://bibliotekanauki.pl/articles/1075435.pdf
Data publikacji:: 2016-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 89.65.Gh
89.75.Da
05.10.Gg
05.40.-a
05.45.Tp
Opis:: We address microscopic, agent based, and macroscopic, stochastic, modeling of the financial markets combining it with the exogenous noise. The interplay between the endogenous dynamics of agents and the exogenous noise is the primary mechanism responsible for the observed long-range dependence and statistical properties of high volatility return intervals. By exogenous noise we mean information flow or/and order flow fluctuations. Numerical results based on the proposed model reveal that the exogenous fluctuations have to be considered as indispensable part of comprehensive modeling of the financial markets.
Źródło:: Acta Physica Polonica A; 2016, 129, 5; 1023-1031
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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