Results 11 to 20 of about 458,490 (247)

Transformation of Frequency Distributions [PDF]

open access: yesNature, 1948
FREQUENCY distributions of numbers of eggs, insects, spores, or other biological entities are descriptive of discrete variation, and can never be represented exactly by a normal distribution or by any other distribution of a continuous variate. Nevertheless, when the number of observations and the range of variation is large, such distributions may ...
openaire   +4 more sources

Power Quality Analysis Using Bilinear Time-Frequency Distributions

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
Bilinear time-frequency distributions (TFDs) are powerful techniques that offer good time and frequency resolution of time-frequency representation (TFR).
Sha'ameri AhmadZuri   +1 more
doaj   +2 more sources

Frequency Distribution Fitting for Electronic Documents

open access: yesInternational Journal of Applied Sciences and Smart Technologies, 2021
Studies of frequency distributions of natural language elements have identified some distributions that offer a good fit. Using electronic documents, we show that some of these distributions cannot be used to model the frequency of bytes in electronic ...
Arockia David Roy Kulandai
doaj   +1 more source

Cross-language distributions of high frequency and phonetically similar cognates. [PDF]

open access: yesPLoS ONE, 2013
The coinciding form and meaning similarity of cognates, e.g. 'flamme' (French), 'Flamme' (German), 'vlam' (Dutch), meaning 'flame' in English, facilitates learning of additional languages.
Job Schepens   +3 more
doaj   +1 more source

Hydrological Drought Frequency Analysis in Water Management Using Univariate Distributions

open access: yesApplied Sciences, 2023
The study of extreme phenomena in hydrology generally involves frequency analysis and a time series analysis. In this article we provide enough mathematics to enable hydrology researchers to apply a wide range of probability distributions in frequency ...
Cristian Gabriel Anghel, Cornel Ilinca
doaj   +1 more source

Influences on flood frequency distributions in Irish river catchments [PDF]

open access: yesHydrology and Earth System Sciences, 2012
This study explores influences on flood frequency distributions in Irish rivers. A Generalised Extreme Value (GEV) type I distribution is recommended in Ireland for estimating flood quantiles in a single site flood frequency analysis. This paper presents
S. Ahilan, J. J. O'Sullivan, M. Bruen
doaj   +1 more source

Imputing stem frequency distributions using harvester and airborne laser scanner data: a comparison of inventory approaches

open access: yesSilva Fennica, 2023
Stem frequency distributions provide useful information for pre-harvest planning. We compared four inventory approaches for imputing stem frequency distributions using harvester data as reference data and predictor variables computed from airborne laser ...
Lennart Noordermeer   +2 more
doaj   +1 more source

Frequency Analysis of Extreme Events Using the Univariate Beta Family Probability Distributions

open access: yesApplied Sciences, 2023
This manuscript presents three families of distributions, namely the Beta, Beta Prime and Beta Exponential families of distributions. From all the distributions of these families, 14 statistical distributions of three, four and five parameters are ...
Cornel Ilinca, Cristian Gabriel Anghel
doaj   +1 more source

Robust Time-Frequency Distributions with Complex-Lag Argument

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
The robust time-frequency distributions with complex-lag argument are proposed. They can provide an accurate estimation of fast varying instantaneous frequency in the presence of noise with heavy-tailed probability density function.
Žarić Nikola   +2 more
doaj   +2 more sources

On the Relation between Wind Speed and Maximum or Mean Water Wave Height

open access: yesAtmosphere
Dimensional analysis shows that the relation between wind speed and maximum or mean water wave height takes the form H=cU02g, where H is the maximum or mean water wave height caused by wind of speed U0, g is the gravitational acceleration, and c is a ...
Sarah Balkissoon   +4 more
doaj   +1 more source

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