Results 111 to 120 of about 27,406 (291)

Neural minimization methods (NMM) for solving variable order fractional delay differential equations (FDDEs) with simulated annealing (SA).

open access: yesPLoS ONE, 2019
To enrich any model and its dynamics introduction of delay is useful, that models a precise description of real-life phenomena. Differential equations in which current time derivatives count on the solution and its derivatives at a prior time are known ...
Amber Shaikh   +4 more
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Coal-rock interface prediction based on multichannel correlated complementary features

open access: yesGong-kuang zidonghua
The coal-rock interface trajectory is multivariate time-series data, and complex correlations exist among different variables, which makes high-precision prediction challenging.
QI Ailing, DAI Jingying, MA Hongwei
doaj   +1 more source

Compressed sensing over `p-balls: Minimax mean square error [PDF]

open access: yes, 2011
We consider the compressed sensing problem, where the object x0 ∈ RN is to be recovered from incomplete measurements y = Ax0 + z; here the sensing matrix A is an n × N random matrix with iid Gaussian entries and n < N.
Andrea Montanari   +3 more
core  

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

The Accurate Evaluation of the Intermolecular Potential Parameters and its Applications

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы
Accurate determination of intermolecular potential parameters is essential for predicting thermophysical properties of real gases, particularly heavy polyatomic fluorides of industrial relevance.
E. Somuncu
doaj   +1 more source

A Bayesian Bootstrap Approach for Dynamic Borrowing for Minimizing Mean Squared Error

open access: yes
For dynamic borrowing to leverage external data to augment the control arm of small RCTs, the key step is determining the amount of borrowing based on the similarity of the outcomes in the controls from the trial and the external data sources. A simple approach for this task uses the empirical Bayesian approach, which maximizes the marginal likelihood (
Wang, Jixian, Tiwari, Ram
openaire   +2 more sources

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

Estimation of the Population Total using the Generalized Difference Estimator and Wilcoxon Ranks

open access: yesRevista Colombiana de Estadística, 2009
This paper presents a new regression estimator for the total of a population created by means of the minimization of a measure of dispersion and the use of the Wilcoxon scores.
HUGO ANDRÉS GUTIÉRREZ, F. JAY BREIDT
doaj  

A compound near-far end least square-fourth error minimization foradaptive echo cancellation [PDF]

open access: yes, 1996
This article presents a novel algorithm for echo cancellers with near-end and far-end sections. The algorithm consists of simultaneously applying the least mean square (LMS) algorithm to the near-end section of the echo canceller and the least mean ...
Zerguine, A.   +2 more
core  

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