Results 31 to 40 of about 2,603,257 (186)

Reliability and the engineering applications of the generalized half-normal model via an adaptive progressive hybrid censored mechanism

open access: yesAIP Advances, 2023
Recently, the generalized half-normal distribution with decreasing, increasing, and bathtub hazard function shapes was proposed, making it a more applicable, reliable, and flexible lifespan model.
Ahmed Elshahhat   +2 more
doaj   +1 more source

Bayesian Inference for General Half-Normally Distributed Lifetime Products

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract The generalized half-normal (GHN) distribution has earned widely concerned in reliability analysis. Type-I hybrid censoring (HC-I) is one efficient scheme for saving test time and cost to collect lifetime information of reliable products.
Hua Xin, Tingting Liu, Zhifang Liu
openaire   +1 more source

Estimation of heritability using half-sib model under correlated errors

open access: yesIndian Journal of Animal Sciences, 2022
In general, statistical models for estimation of heritability follow certain assumptions, i.e. random components including the error follow a normal distribution and are identically independently distributed.
AMRIT KUMAR PAUL   +3 more
doaj   +1 more source

Control chart for half normal and half exponential power distributed process

open access: yesScientific Reports, 2023
AbstractIn this manuscript, we construct an attribute control chart (ACC) for the number of defective items using time-truncated life tests (TTLT) when the lifetime of a manufacturing item follows two lifetime data distributions: the half-normal distribution (HND) and the half-exponential power distribution (HEPD).
Muhammad Naveed   +5 more
openaire   +3 more sources

Stochastic frontier model approach for measuring stock market efficiency with different distributions. [PDF]

open access: yesPLoS ONE, 2012
The stock market is considered essential for economic growth and expected to contribute to improved productivity. An efficient pricing mechanism of the stock market can be a driving force for channeling savings into profitable investments and thus ...
Md Zobaer Hasan   +3 more
doaj   +1 more source

Optimal B-Robust Estimators for the Parameters of the Generalized Half-Normal Distribution

open access: yesRevstat Statistical Journal, 2017
The purpose of this study is to propose robust estimators by using optimal B-robust (OBR) estimation method (Hampel et al. [5]) for the parameters of the generalized half-normal (GHN) distribution.
Fatma Zehra Doğru   +2 more
doaj   +1 more source

Application of randomization techniques for balancing site covariates in the adult day service plus pragmatic cluster-randomized trial

open access: yesContemporary Clinical Trials Communications, 2020
Cluster-randomized trials (CRTs) are increasingly common in pragmatic trials of interventions for older adults, where staff of existing clinics or service agencies deliver interventions.
David L. Roth   +3 more
doaj   +1 more source

Do all stars in the solar neighbourhood form in clusters? A cautionary note on the use of the distribution of surface densities

open access: yes, 2012
Bressert et al. recently showed that the surface density distribution of low-mass, young stellar objects (YSOs) in the solar neighbourhood is approximately log-normal.
Clarke, Cathie J.   +2 more
core   +1 more source

A Composite Half-Normal-Pareto Distribution with Applications to Income and Expenditure Data

open access: yesMathematics
The half-normal distribution is composited with the Pareto model to obtain a uni-parametric distribution with a heavy right tail, called the composite half-normal-Pareto distribution.
Neveka M. Olmos   +3 more
doaj   +1 more source

Mean and variance of balanced P\'olya urns

open access: yes, 2019
It is well known that in a small P\'olya urn, i.e., an urn where second largest real part of an eigenvalue is at most half the largest eigenvalue, the distribution of the numbers of balls of different colours in the urn is asymptotically normal under ...
Janson, Svante
core   +1 more source

Home - About - Disclaimer - Privacy