Results 11 to 20 of about 864,065 (266)

Fitting test of two-parameter BS fatigue life distribution and approximate interval estimation of environmental factor

open access: yes上海师范大学学报. 自然科学版, 2019
Two-parameter Birnbaum-Saunders (BS) fatigue life distribution is an important failure model in the probability physical methods.It is more suitable for describing the life rules of fatigue failure products than common life distributions such as Weibull ...
WANG Ronghua, GU Beiqing, XU Xiaoling
doaj   +1 more source

Distributed parameter identification algorithm for large‐scale interconnected systems

open access: yesIET Control Theory & Applications, 2023
This paper deals with parameter estimation problem of large‐scale systems. A recursive distributed parameter estimation algorithm, based on the minimization of the prediction estimation error method, is developed.
Mounira Hamdi   +4 more
doaj   +1 more source

Estimation of the scale parameter of gamma model in presence of outlier observations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
This paper considers the Bayesian point estimation of the scale parameter for a two-parameter gamma life-testing model in presence of several outlier observations in the data.
M. E. Ghitany
doaj   +1 more source

The statistical analysis and application of asymmetric three-parameter weibull distribution

open access: yes上海师范大学学报. 自然科学版, 2018
On the basis of two-parameter Weibull distribution,we propose asymmetric three-parameter Weibull distribution which takes values in (-∞,+∞),and study its graphic features of the density function as well as the numerical characteristics of this ...
Hu Yinhua, Xu Xiaoling
doaj   +1 more source

Full-Scale Digesters: An Online Model Parameter Identification Strategy

open access: yesEnergies, 2022
This work presents a new standard in the model, identification, and control of monitoring purposes over anaerobic reactors. One requirement that guarantees a normal controller operation is for the faculty to measure the data needed periodically.
Luis G. Cortés   +6 more
doaj   +1 more source

Global-scale parameters for ecological models

open access: yesScientific Data, 2023
AbstractThis paper presents a collection of environmental, geophysical, and other marine-related data for marine ecological models and ecological-niche models. It consists of 2132 raster data for 58 distinct parameters at regional and global scales in the ESRI-GRID ASCII format.
Gianpaolo Coro   +2 more
openaire   +3 more sources

SCALE-INVARIANT AND WAVE NATURE OF THE HUBBLE PARAMETER

open access: yesEurasian Physical Technical Journal, 2021
The value of the global Hubble parameter corresponding to astrophysical observations was determined theoretically without using ʌСDM models. A nonlinear fractal model of the connection between the distance to the observed galaxy and its coordinate is ...
Z.Zh. Zhanabaev   +2 more
doaj   +1 more source

Optimal segmentation parameters prediction using a orthogonal decomposition approach for geographical object based classification of urban areas

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2021
Good image segmentation produces objects that are internally homogeneous and distinct from their neighbors. Several approaches are used to assess the quality of segmentation parameters including visual observation of multiple segmentation results and ...
Guy Blanchard Ikokou, Julian Smit
doaj   +1 more source

A scaling limit with many noncommutativity parameters [PDF]

open access: yesPhysics Letters B, 2001
We derive the worldsheet propagator for an open string with different magnetic fields at the two ends, and use it to compute two distinct noncommutativity parameters, one at each end of the string. The usual scaling limit that leads to noncommutative Yang-Mills can be generalized to a scaling limit in which both noncommutativity parameters enter.
Dolan, L., Nappi, C. R.
openaire   +3 more sources

Scalable Parameter Estimation for Genome-Scale Biochemical Reaction Networks. [PDF]

open access: yesPLoS Computational Biology, 2017
Mechanistic mathematical modeling of biochemical reaction networks using ordinary differential equation (ODE) models has improved our understanding of small- and medium-scale biological processes.
Fabian Fröhlich   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy