Results 11 to 20 of about 2,446,419 (268)

A GENERALIZED INTEGRAL-GEOMETRICAL THEORY IN MINING [PDF]

open access: yesFiabilitate şi Durabilitate, 2012
A new mechanical and mathematical model for mining through formation is suggested. A vectorfunction which describes the created displacement possibility of the influence zone points of the miningexcavation is applied. The points put under influence react
Michail VULKOV
doaj   +2 more sources

Filtered Influence Function of Deformable Mirror for Wavefront Correction in Laser Systems

open access: yesPhotonics, 2021
An influence function filtering method (IFFM) is presented to improve the wavefront correction capability in laser systems by curbing the correction performance degradation resulted from the IF measurement noise.
Yamin Zheng   +5 more
doaj   +1 more source

Modified boundary element method for the solution of connected problems of mathematical physics

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The modified boundary element method for physico-mathematical modeling of the multifactorial processes is offered for discussion. Physical modeling based on the Onsager's theorem about the relationship between generalized forces and fluxes where we ...
Vladimir Petrovich Fedotov
doaj   +1 more source

Analysis of Numerical Micromodulus Coupled with Influence Function for Brittle Materials via Bond-Based Peridynamics

open access: yesApplied Sciences, 2023
In this paper, the numerical micromodulus is derived for the plane stress problem to develop a new insight into the application of bond-based peridynamics.
Yachen You, Siyi Jia
doaj   +1 more source

Two symmetric and computationally efficient Gini correlations

open access: yesDependence Modeling, 2020
Standard Gini correlation plays an important role in measuring the dependence between random variables with heavy-tailed distributions. It is based on the covariance between one variable and the rank of the other. Hence for each pair of random variables,
Vanderford Courtney   +2 more
doaj   +1 more source

Restricted Distance-Type Gaussian Estimators Based on Density Power Divergence and Their Applications in Hypothesis Testing

open access: yesMathematics, 2023
In this paper, we introduce the restricted minimum density power divergence Gaussian estimator (MDPDGE) and study its main asymptotic properties. In addition, we examine it robustness through its influence function analysis.
Ángel Felipe   +3 more
doaj   +1 more source

Robust Inference after Random Projections via Hellinger Distance for Location-Scale Family

open access: yesEntropy, 2019
Big data and streaming data are encountered in a variety of contemporary applications in business and industry. In such cases, it is common to use random projections to reduce the dimension of the data yielding compressed data. These data however possess
Lei Li   +3 more
doaj   +1 more source

Robust variance estimation and inference for causal effect estimation

open access: yesJournal of Causal Inference, 2023
We present two novel approaches to variance estimation of semi-parametric efficient point estimators of the treatment-specific mean: (i) a robust approach that directly targets the variance of the influence function (IF) as a counterfactual mean outcome ...
Tran Linh   +3 more
doaj   +1 more source

Robust Bootstrap

open access: yesRevstat Statistical Journal, 2014
There is a vast literature on robust estimators, but in some situations it is still not easy to make inferences, such as confidence regions and hypothesis testing. This is mainly due to the following facts.
Conceição Amado   +3 more
doaj   +1 more source

Assessment of South Pars Gas Field Subsidence Due To Gas Withdrawal [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2014
Withdrawal of oil and gas from reservoirs causes a decrease in pore pressure and an increase in effective stress which results to a reservoir compaction.
Akbar Ghazifard   +2 more
doaj   +1 more source

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