Results 11 to 20 of about 150,813 (163)

Penalized likelihood approach for the four-parameter kappa distribution [PDF]

open access: yesJournal of Applied Statistics, 2021
The four-parameter kappa distribution (K4D) is a generalized form of some commonly used distributions such as generalized logistic, generalized Pareto, generalized Gumbel, and generalized extreme value (GEV) distributions. Owing to its flexibility, the K4D is widely applied in modeling in several fields such as hydrology and climatic change.
Nipada Papukdee   +2 more
openaire   +4 more sources

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

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

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 and q Indices: Dependence on the Degrees of Freedom

open access: yesEntropy, 2015
The kappa distributions, or their equivalent, the q-exponential distributions, are the natural generalization of the classical Boltzmann-Maxwell distributions, applied to the study of the particle populations in collisionless space plasmas.
George Livadiotis
doaj   +1 more source

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

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

A Transmuted Survival Kappa Distribution: Properties and Applications [PDF]

open access: yesAssiut University Journal of Multidisciplinary Scientific Research
The author proposes a new four-parameter distribution that aims to provide a more flexible approach to modelling real-life data compared to commonly used lifetime distributions defined.
Nahla Abdul Sahib
doaj   +1 more source

Modeling climate extremes using the four-parameter kappa distribution for r-largest order statistics

open access: yesWeather and Climate Extremes, 2023
Accurate estimation of the T-year return levels of climate extremes using statistical distribution is a critical step in the projection of future climate and in engineering design for disaster response.
Yire Shin, Jeong-Soo Park
doaj   +1 more source

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