Results 51 to 60 of about 150,813 (163)

Harriss Generalized Kappa Distribution: Statistical Modeling and Practical Applications in Finance and Engineering

Engineering Reports
This study presents a four‐parameter distribution which is called the Harris generalized Kappa distribution, which is flexible and tractable. The new distribution extends the two‐parameter Kappa distribution, and it can be explored to model highly skewed
Ogunde Adebisi Ade, Tabassum Naz Sindhu, Subhankar Dutta, Anum Shafiq, Qasem M. Al‐Mdallal   +4 more
doaj   +1 more source

Resistive drift instabilities for thermal and non-thermal electron distributions in electron-ion plasma

Heliyon, 2018
Local dispersion relations for resistive drift mode in a nonuniform magnetize plasma are derived for thermal and non-thermal distribution of electrons.
Umer Rehman
doaj   +1 more source

Exploring Numerical Correlations: Models and Thermodynamic Kappa

Entropy
McComas et al. (2025) introduced a numerical experiment, where ordinary uncorrelated collisions between collision pairs are followed by other, controlled (correlated) collisions, shedding light on the emergence of kappa distributions through particle ...
Nicholas V. Sarlis, David J. McComas, George Livadiotis   +2 more
doaj   +1 more source

A nonextensive entropy path to probability distributions in solar wind turbulence [PDF]

Nonlinear Processes in Geophysics, 2005
The observed scale dependence of the probability distributions of the differences of characteristic solar wind variables is analyzed. Intermittency of the turbulent fluctuations at small-scale spatial separations is accompanied by strongly non-Gaussian ...
M. P. Leubner, M. P. Leubner, Z. Vörös
doaj  

Distribution of shifted discrete random walk generated by distinct random variables and applications in ruin theory

Modern Stochastics: Theory and Applications
In this paper, the distribution function \[ \varphi (u)=\mathbb{P}\Bigg(\underset{n\geqslant 1}{\sup }{\sum \limits_{i=1}^{n}}({X_{i}}-\kappa )\lt u\Bigg),\] and the generating function of $\varphi (u+1)$ are set up.
Simonas Gervė, Andrius Grigutis
doaj   +1 more source

Electromagnetic Instability in Plasma with Kappa Distribution Function in the Presence of Coulomb Collision [PDF]

Iranian Journal of Astronomy and Astrophysics
In this research, an analytical expression of the Weibel electromagnetic instability growth rate is investigated for strongly coupled plasma in the presence of Coulomb collisions in the beam-plasma interaction under a low-frequency wave condition.
Fatemeh Nejadtaghi, Mohammad Mahdavi, Saeed Hassan pour, Hengameh Khanzadeh, Ali Tavassoli   +4 more
doaj   +1 more source

A statistical analysis of the Kappa-type energy spectrum distribution of radiation belt electrons observed by Van Allen Probes

Earth and Planetary Physics
The energy spectrum of energetic electrons is a key factor representing the dynamic variations of Earth’s Van Allen radiation belts. Increased measurements have indicated that the commonly used Maxwellian and Kappa distributions are inadequate for ...
LuHuai Jiao, Xin Ma, YuanNong Zhang, TaiFeng Jin, Song Fu, BinBin Ni   +5 more
doaj   +1 more source

The subtracted-kappa distribution and its properties

Physics of Plasmas
We introduce a new particle distribution function in plasma physics called the subtracted-kappa (S-K) distribution. This new distribution incorporates a loss-cone feature and an enhanced high-energy tail characterized by the spectral index κ. The S-K distribution is a generalization of the well-known subtracted-Maxwellian and approaches the latter ...
Danny Summers, Sarah Stone
openaire   +1 more source

Solar Wind Electron Acceleration via Langmuir Turbulence

Terrestrial, Atmospheric and Oceanic Sciences, 2013
The solar wind electrons observed at 1 AU are characterized by velocity distribution functions (VDF) that deviate from the Maxwellian form in a high energy regime. Such a feature is often modeled by a kappa distribution.
Peter H. Yoon, Luiz F. Ziebell, Rudi Gaelzer, Linghua Wang, Robert P. Lin   +4 more
doaj   +1 more source

Properties and Applications of A New Attractive Distribution

Journal of Statistical Theory and Applications (JSTA)
We provide a new, flexible model called the Odd Kappa-Exponential (OK-E) distribution. The shape of its hazard rate function (hrf) might be constant, declining, growing, inverted-J, bathtub, or inverted-bathtub. The probability density function (pdf) and
Ali A. Al-Shomrani, Ahmed Al-Arfaj
doaj   +1 more source