On the basis of data source 10 m wind field above sea with hourly frequency and during period 41 years (1979–2019) by NCEP CFRS, we used probability distribution functions to study law speed in waters Ly Son island. Specifically, four (normal distribution, gamma Weibull extreme value distribution) were estimate characteristic parameters shape proportion

Self-diffusion in polymer solutions studied with pulsed-field gradient nuclear magnetic resonance (PFG NMR) is typically based either on a single self-diffusion coefficient, or a log-normal distribution of self-diffusion coefficients, or in some cases mixtures of these. Experimental data on polyethylene glycol (PEG) solutions and simulations were used to compare a model based on a gamma distrib...

Distributions have several different types of associated functions. The most familiar is the density function. Figure 1A and 1D show density functions for the normal distribution and gamma distribution, respectively. Density functions are related to histograms in that if enough data are collected then the histogram and density share the same shape. Hence, density functions serve as a first-orde...

The paper investigates stochastic processes forced by independent and identically distributed jumps occurring according to a Poisson process. The impact of different distributions of the jump amplitudes are analyzed for processes with linear drift. Exact expressions of the probability density functions are derived when jump amplitudes are distributed as exponential, gamma, and mixture of expone...

This paper focuses mainly on the problem of computing γth, γ>0, moment a random variable Yn:=∑i=1nαiXi in which αi’s are positive real numbers and Xi’s independent distributed according to noncentral chi-square distributions. Finding an analytical approach for solving such has remained challenge due lack understanding probability distribution Yn, especially when not all equal. We analyticall...

<span lang="EN-CA">Estimating wind speed characteristics plays an essential role in designing a power plant at selected location. In this study, the Weibull, gamma, and exponential distribution models were proposed to estimate analyze parameters functions. Real measured data collected from Medan City, Indonesia. The scale shape factors of for three years calculated. observed cumulative pr...

This study aims to investigate the diametric structure of a seasonally dry tropical forest in Bahia and select best functions for stand species greater importance. Two subsets were selected fitting validation from pre- post-selective harvest inventories. Normal, Log-normal tested; Gamma, Weibull 2P, 3P. The fits using Kolmogorov-Smirnov test Akaike information criterion. Negative exponential cu...