Results 201 to 210 of about 2,897 (246)

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

Advanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang, Adrian Ehrenhofer, Thomas Wallmersperger   +2 more
wiley   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

Advanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann, Sarath Menon, Raphael Röske, Johannes Steinhülb, Michael Selzer, Jan Janssen, Tilmann Hickel, Ruth Schwaiger, Jörg Neugebauer   +8 more
wiley   +1 more source

A discrepancy principle for Poisson data

Inverse Problems, 2010
In applications of imaging science, such as emission tomography, fluorescence microscopy and optical/infrared astronomy, image intensity is measured via the counting of incident particles (photons, γ-rays, etc). Fluctuations in the emission-counting process can be described by modeling the data as realizations of Poisson random variables (Poisson data).
BERTERO, MARIO, BOCCACCI, PATRIZIA, G. TALENTI, R. ZANELLA, L. ZANNI   +4 more
openaire   +2 more sources

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On convergence rates for asymptotic discrepancy principle

Journal of Inverse and Ill-Posed Problems, 2016
Abstract A series of recent numerical experiments for parameter estimation inverse problems in epidemiology [7, 6] have indicated that applicability of the discrepancy principle (DP) does not depend on the structure of a particular regularizing operator.
Alexandra Smirnova
exaly   +3 more sources

Regularization properties of the sequential discrepancy principle for Tikhonov regularization in Banach spaces

Applicable Analysis, 2014
The stable solution of ill-posed non-linear operator equations in Banach space requires regularization. One important approach is based on Tikhonov regularization, in which case a one-parameter family of regularized solutions is obtained.
Stephan W Anzengruber, Bernd Hofmann, Peter Mathé   +2 more
exaly   +2 more sources

A modification of the generalized discrepancy principle

USSR Computational Mathematics and Mathematical Physics, 1983
Translation from Zh. Vychisl. Mat. Mat. Fiz. 23, No.6, 1298-1303 (Russian) (1983; Zbl 0543.65033).
Kochikov, I. V., Matvienko, A. N., Yagola, A. G.   +2 more
openaire   +2 more sources

A generalized discrepancy principle for solving incompatible equations

USSR Computational Mathematics and Mathematical Physics, 1984
Let \(Z\) be a reflexive Banach space with the property \(H\), \(D\) be a closed convex subset of \(Z\), \(0\in D\). Consider an incompatible equation \(Az=u\) in \(D\) (i.e. \(\mu =\inf \{\| Az-u\|: z\in D\}\ge 0)\) where \(A\) is a bounded linear operator from \(Z\) into a normed linear space \(U\), \(u\in U\), and suppose there is a normal ...
Kochikov, I. V., Matvienko, A. N., Yagola, A. G.   +2 more
openaire   +3 more sources