Results 31 to 40 of about 154,923 (294)

Physical Correlations Lead to Kappa Distributions

open access: yesThe Astrophysical Journal, 2022
Abstract The recently developed concept of “entropic defect” is important for understanding the foundations of thermodynamics in space plasma physics, and more generally for systems with physical correlations among their particles. Using this concept, this paper derives the basic formulation of the distribution function of velocities (or
G. Livadiotis, D. J. McComas
openaire   +2 more sources

Comparative analysis on the structural features of the 5' flanking region of kappa-casein genes from six different species [PDF]

open access: yes, 2002
Kappa-casein plays an essential role in the formation, stabilisation and aggregation of milk micelles. Control of kappa-casein expression reflects this essential role, although an understanding of the mechanisms involved lags behind that of the other ...
C. Bruce A. Whitelaw,   +16 more
core   +1 more source

Map of suprathermal onto nonextensive parameters describing Langmuir waves

open access: yesFundamental Plasma Physics, 2023
We propose a polytropic-like index that depends on the concentration and number of degrees of freedom of a gas of charged particles following a nonextensive distribution.
F.E.M. Silveira, M.H. Benetti
doaj   +1 more source

Dust-ion-acoustic shock waves in the presence of dust charge fluctuation in non-Maxwellian plasmas with Kappa-distributed electrons

open access: yesResults in Physics, 2021
A three-component plasma composed of nonthermal Kappa-distributed electrons, mobile ions, stationary and dust-fluctuating (spherical) dust particles is considered.
M. Kamran   +4 more
doaj   +1 more source

Bayesian Inference in Extremes Using the Four-Parameter Kappa Distribution

open access: yesMathematics, 2020
Maximum likelihood estimation (MLE) of the four-parameter kappa distribution (K4D) is known to be occasionally unstable for small sample sizes and to be very sensitive to outliers.
Palakorn Seenoi   +2 more
doaj   +1 more source

Kappa distribution from particle correlations in nonequilibrium, steady-state plasmas

open access: yes, 2023
Indexación: Scopus.Kappa-distributed velocities in plasmas are common in a wide variety of settings, from low-density to high-density plasmas. To date, they have been found mainly in space plasmas, but are recently being considered also in the modeling ...
Davis, Sergio   +6 more
core   +2 more sources

Relativistic Kappa Distribution Effects on Dust Charging in Critical Areas of Dusty Plasma [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2021
The process of dust grain charging with the help the orbit limited motion theory (OLM) and a kinetic model in the relativistic regime considers in the critical areas of the dust grain density when it is very low and vice versa.
Masoud Taherimoghadam, Taghi Mirzaye
doaj   +1 more source

Statistics of Binary Exchange of Energy or Money

open access: yesEntropy, 2017
Why does the Maxwell-Boltzmann energy distribution for an ideal classical gas have an exponentially thin tail at high energies, while the Kaniadakis distribution for a relativistic gas has a power-law fat tail?
Maria Letizia Bertotti   +1 more
doaj   +1 more source

Extended Kappa Distribution in the Presence of Censored Data

open access: yes, 2023
In this study, we introduce a new extension of three-parameter Kappa distribution using the Topp-Leone family of distributions, called Topp-Leone Kappa distribution which offers distribution with more flexible and applicable study of the highly-skewed ...
Y. Abdelall, Y.
core   +1 more source

Loading a relativistic Kappa distribution in particle simulations

open access: yesPhysics of Plasmas, 2022
A procedure for loading particle velocities from a relativistic kappa distribution in particle-in-cell and Monte Carlo simulations is presented. It is based on the rejection method and the beta prime distribution. The rejection part extends earlier method for the Maxwell–Jüttner distribution, and then the acceptance rate reaches ≳95%.
Seiji Zenitani, Shin'ya Nakano
openaire   +2 more sources

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