The analysis of parameters quasi-attractors of meteofactors as a homeostatic system

2015 ◽  
Vol 9 (4) ◽  
pp. 0-0
Author(s):  
Проворова ◽  
O. Provorova ◽  
Филатова ◽  
O. Filatova ◽  
Русак ◽  
...  

Climatic and ecological environmental factors constitute the objective and subjective sides of life quality. The influence of weather and climate for health is very important. As the complex system is considered a model of 3-dimensional phase space, a box, inside of this is a quasi-attractor behavior parameters of meteo environment. The paper deals with the comparative analysis of the dynamics of meteorological factors of environment in the phase space of states in the framework of the theory of chaos and stochastic laws. The authors used their own program on the example of two territorial zones - an average strip of Russia and the Northern territory (n. Nizhnesortymsky Khanty-Ugra). It is important to note that the air temperature as an essential feature, it is practically not manifested itself in assessing the importance of parameters for Samara in contrast to Nizhnesortymsk. The used method allowed to determine the parameters of the order and to their ranking and to identify the most important characteristics in a comparative perspective the two territorial zones. It was postulated the equality between weather a climate parameters and cardio-vascular system parameter. It is postulated that the dynamics of meteorological parameters is similar to the dynamics of the cardiovascular system.

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.


2017 ◽  
Vol 2 (2) ◽  
pp. 66-70
Author(s):  
N. A. Vaschuk ◽  
◽  
M. U. Prudenko ◽  
N. S. Hloba ◽  
A. A. Kurbel

2021 ◽  
Vol 87 (3) ◽  
Author(s):  
Nicolas Crouseilles ◽  
Paul-Antoine Hervieux ◽  
Yingzhe Li ◽  
Giovanni Manfredi ◽  
Yajuan Sun

We propose a numerical scheme to solve the semiclassical Vlasov–Maxwell equations for electrons with spin. The electron gas is described by a distribution function $f(t,{\boldsymbol x},{{{\boldsymbol p}}}, {\boldsymbol s})$ that evolves in an extended 9-dimensional phase space $({\boldsymbol x},{{{\boldsymbol p}}}, {\boldsymbol s})$ , where $\boldsymbol s$ represents the spin vector. Using suitable approximations and symmetries, the extended phase space can be reduced to five dimensions: $(x,{{p_x}}, {\boldsymbol s})$ . It can be shown that the spin Vlasov–Maxwell equations enjoy a Hamiltonian structure that motivates the use of the recently developed geometric particle-in-cell (PIC) methods. Here, the geometric PIC approach is generalized to the case of electrons with spin. Total energy conservation is very well satisfied, with a relative error below $0.05\,\%$ . As a relevant example, we study the stimulated Raman scattering of an electromagnetic wave interacting with an underdense plasma, where the electrons are partially or fully spin polarized. It is shown that the Raman instability is very effective in destroying the electron polarization.


1995 ◽  
Vol 36 (8-12) ◽  
pp. 607-613
Author(s):  
O. Marsal ◽  
C. André-Deshays ◽  
D. Cauquil ◽  
A. Kotovskaya ◽  
V. Gratchev ◽  
...  

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