Results 21 to 30 of about 105,471 (295)

Advanced Weibull Modelling with Outliers

open access: yesPHM Society Asia-Pacific Conference, 2023
This paper presents a comprehensive process for the advanced Weibull modelling with potential outlier inclusions. In this process, an algorithm is designed to identify if there exist any outliers (i.e., failures with different failure modes from the majority) in the failure data of the equipment of interest.
Yipeng Pang, Guoqiang Hu, Sungin Cho
openaire   +1 more source

Families of Extended Exponentiated Generalized Distributions and Applications of Medical Data Using Burr III Extended Exponentiated Weibull Distribution

open access: yesMathematics, 2023
In this article, four new families named as Weibull extended exponentiated-X (WEE-X), Lomax extended exponentiated-X (LEE-X), Logistic extended exponentiated-X (LGCEE-X), and Burr III extended exponentiated-X (BIIIEE-X) with their quantile functions are ...
Sajid Hussain   +3 more
doaj   +1 more source

Testing homogeneity in Weibull-regression models

open access: yesBiometrical Journal, 2005
In survival studies with families or geographical units it may be of interest testing whether such groups are homogeneous for given explanatory variables. In this paper we consider score type tests for group homogeneity based on a mixing model in which the group effect is modelled as a random variable.
Bolfarine, Heleno, Valença, Dione M.
openaire   +3 more sources

Three-Parameter Estimation Method of Multiple Hybrid Weibull Distribution Based on the EM Optimization Algorithm

open access: yesMathematics, 2022
The hybrid Weibull distribution model can describe the failure rules of electromechanical products more accurately than the single Weibull distribution model, and it can improve the accuracy of reliability analysis.
Xiaowei Dong   +6 more
doaj   +1 more source

Finite-Size Effects on Return Interval Distributions for Weakest-Link-Scaling Systems

open access: yes, 2014
The Weibull distribution is a commonly used model for the strength of brittle materials and earthquake return intervals. Deviations from Weibull scaling, however, have been observed in earthquake return intervals and in the fracture strength of quasi ...
Hristopulos, Dionissios T.   +2 more
core   +1 more source

A generalized Gompertz model of reliability-dependent hazard rate for composites under cyclic stresses

open access: yesScience and Engineering of Composite Materials, 2012
This study aims to investigate the relation of hazard rate in terms of the corresponding reliability for composite laminates under constant-amplitude cyclic stresses when the static strength is described by the Weibull distribution and the S-N curve is ...
Chen Chung-Ling, Wang Kuo-Shong
doaj   +1 more source

Scaling in the distribution of intertrade durations of Chinese stocks [PDF]

open access: yes, 2008
The distribution of intertrade durations, defined as the waiting times between two consecutive transactions, is investigated based upon the limit order book data of 23 liquid Chinese stocks listed on the Shenzhen Stock Exchange in the whole year 2003.
Chen, Wei   +2 more
core   +1 more source

A study on the reliability of relay protection devices considering dynamic changes in temperature stress

open access: yesZhejiang dianli
Relay protection devices contain numerous electronic components, and environmental factors such as temperature, humidity, and vibration can impact their reliability.
GONG Jie   +3 more
doaj   +1 more source

Reliability Evaluation Of The City Transport Buses Under Actual Conditions

open access: yesTransport and Telecommunication, 2015
The purpose of this paper was to present a reliability comparison of two types of city transport buses. Case study on the example of the well-known brands of city buses: Solaris Urbino 12 and Mercedes-Benz 628 Conecto L used at Municipal Transport ...
Rymarz Joanna   +2 more
doaj   +1 more source

Survival extrapolation using the poly-Weibull model [PDF]

open access: yesStatistical Methods in Medical Research, 2011
Recent studies of (cost-) effectiveness in cardiothoracic transplantation have required estimation of mean survival over the lifetime of the recipients. In order to calculate mean survival, the complete survivor curve is required but is often not fully observed, so that survival extrapolation is necessary. After transplantation, the hazard function is
Demiris, N, Lunn, D, Sharples, LD
openaire   +5 more sources

Home - About - Disclaimer - Privacy