Results 1 to 10 of about 118 (82)

Uso da função Weibull de três parâmetros em um modelo de distribuição diamétrica para plantios de eucalipto submetidos a desbaste Three-parameter Weibull distribution in a diametric distribution model for thinning eucaliptus stands

open access: yesRevista Árvore, 2010
O objetivo deste estudo foi propor um modelo de distribuição diamétrica para povoamentos de eucalipto submetidos ao desbaste, com a inclusão do parâmetro de locação da função Weibull. Essa função foi ajustada a dados de 48 parcelas permanentes instaladas
Daniel Henrique Breda Binoti   +5 more
doaj   +2 more sources

AN EXTENSION OF THE TWO-PARAMETER WEIBULL DISTRIBUTION UNA EXTENSIÓN DE LA DISTRIBUCIÓN WEIBULL DE DOS PARÁMETROS

open access: yesRevista Colombiana de Estadística, 2010
In this paper, we present an extension of the Two-parameter Weibull distribution to make it even more flexible in terms of its kurtosis coefficient. Properties involving moments and asymmetry and kurtosis indexes are studied.
Olivares-Pacheco Juan F.   +2 more
doaj   +1 more source

Una extensión de la distribución Weibull de dos parámetros An Extension of the Two-Parameter Weibull Distribution

open access: yesRevista Colombiana de Estadística, 2010
En este artículo se presenta una extensión de la distribución Weibull de dos parámetros, con el objetivo de flexibilizar el modelo en términos de la kurtosis.
JUAN F. OLIVARES-PACHECO   +2 more
doaj   +1 more source

CEV MEAN CONTROL CHART FOR WEIBULL DISTRIBUTIONS WITH CENSORED DATA CARTA DE CONTROL CEV PROMEDIO PARA DISTRIBUCIONES WEIBULL CON DATOS CENSURADOS

open access: yesRevista Colombiana de Estadística, 2005
In many Industrial applications, censored observations are present and in this cases direct application of the Shewhart mean and np control charts is not adequate.
Vargas N. José, Montaño P. Tysua
doaj   +1 more source

Carta de control CEV para distribuciones Weibull con datos censurados CEVControl Chart for Weibull Distributions with Censored Data

open access: yesRevista Colombiana de Estadística, 2005
En algunas aplicaciones en el área de la industria no se puede contar con la información completa y se debe trabajar con observaciones censura das, haciendo inadecuada la aplicación directa de las cartas de control de Shewhart y np.
JOSÉ VARGAS N, TYSUA MONTAÑO P
doaj   +1 more source

Evaluation of Weibull parameters by different methods for farms

open access: yesActa Scientiarum: Technology, 2023
One of the most prevalent clean and sustainable forms of energy produced worldwide is the power created from wind runoff. Wind turbines ought to be installed in areas with favorable circumstances to transform mechanical wind energy into electricity ...
Flavio Aristone   +9 more
doaj   +1 more source

Return period maps of dry spells for Catalonia (northeastern Spain) based on the Weibull distribution / Périodes de retour des périodes sèches en Catalogne (nord-est de l'Espagne) à partir de la distribution de Weibull [PDF]

open access: yesHydrological Sciences Journal, 2008
Abstract A detailed description of the spatial distribution of dry spell lengths in Catalonia (northeastern Spain) for the years 1950–2000 is obtained from a statistical analysis. The database is derived from the daily records of 75 raingauges, and a dry spell is defined as a set of consecutive days with daily rainfall amounts below thresholds of 0.1 ...
X. LANA   +3 more
openaire   +1 more source

Estimation de la puissance énergétique éolienne à partir de la distribution de Weibull sur la côte béninoise à Cotonou dans le Golfe de Guinée

open access: yesJournal of Renewable Energies, 2023
La situation énergétique au Bénin est caractérisée par un faible taux d’accès à l’électricité et une dépendance quasi-totale vis-à-vis de l’extérieur en énergie électrique. Sur la côte béninoise dans le Golfe de Guinée, on observe la propagation d’un vent quasi permanent et régulier.
M.A. Houekpoheha   +3 more
openaire   +2 more sources

Ajustes de funções de distribuição de probabilidade à radiação solar global no Estado do Rio Grande do Sul Adjustments of probability distribution functions to global solar radiation in Rio Grande do Sul State

open access: yesPesquisa Agropecuária Brasileira, 2004
O objetivo deste trabalho foi verificar o ajuste das séries de dados de radiação solar global média decendial, de 22 municípios do Estado do Rio Grande do Sul, às funções de distribuições de probabilidade normal, log-normal, gama, gumbel e weibull ...
Alberto Cargnelutti Filho   +2 more
doaj   +1 more source

The gamma-Weibull distribution revisited

open access: yesAnais da Academia Brasileira de Ciências, 2010
The five parameter gamma-Weibull distribution has been introduced by Leipnik and Pearce (2004). Nadarajah and Kotz (2007) have simplified it into four parameter form, using hypergeometric functions in some special cases.
Tibor k. Pogány, Ram k. Saxena
doaj   +1 more source

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