Results 41 to 50 of about 221,604 (201)

Homogeneous bands [PDF]

open access: yesAdvances in Mathematics, 2018
A countable band $B$ is called homogeneous if every isomorphism between finitely generated subbands extends to an automorphism of $B$. In this paper we give a complete classification of all the homogeneous bands. We prove that a homogeneous band belongs to the variety of regular bands, and has a homogeneous structure semilattice.
openaire   +3 more sources

Intensity Segmentation of the Human Brain with Tissue dependent Homogenization [PDF]

open access: yes, 2002
High-precision segmentation of the human cerebral cortex based on T1-weighted MRI is still a challenging task. When opting to use an intensity based approach, careful data processing is mandatory to overcome inaccuracies.
Rodenacker, K.   +2 more
core   +1 more source

Carbon Nanotubes in Cement—A New Approach for Building Composites and Its Influence on Environmental Effect of Material

open access: yesMolecules
An addition of carbon nanostructures to cement paste is problematic due to the difficulties in obtaining homogenous mixtures. The paper reports on a more effective way of mixing carboxylated multi-walled carbon nanotubes (MWCNT-COOH) in cement pastes ...
Teobald Kupka   +11 more
doaj   +1 more source

On a Homogenization Problem [PDF]

open access: yesJournal of Statistical Physics, 2018
We study a homogenization question for stochastic divergence type ...
openaire   +2 more sources

Damage as Gamma-limit of microfractures in anti-plane linearized elasticity [PDF]

open access: yes, 2008
A homogenization result is given for a material having brittle inclusions arranged in a periodic structure. <br/> According to the relation between the softness parameter and the size of the microstructure, three different limit models are ...
Scardia, L.
core   +1 more source

Multiscale and Failure Analysis of Periodic Lattice Structures

open access: yesApplied Sciences
A full-cycle, multiscale analysis technique was developed for periodic lattice structures with geometric repetition, aiming for more efficient modeling to predict their failure loads.
Young Kwon, Matthew Minck
doaj   +1 more source

Micromechanics-Based Homogenization of the Effective Physical Properties of Composites With an Anisotropic Matrix and Interfacial Imperfections

open access: yesFrontiers in Materials, 2019
Micromechanics-based homogenization has been employed extensively to predict the effective properties of technologically important composites. In this review article, we address its application to various physical phenomena, including elasticity, thermal
Seunghwa Ryu   +4 more
doaj   +1 more source

Observation of local density increase during pellet homogenization on EAST

open access: yesNuclear Fusion, 2023
By combining the X-mode polarized lower and upper cut-off reflections obtained from the density profile reflectometer, we have successfully attained a comprehensive density profile spanning from the edge to the core region in pellet injection (PI ...
J. Huang   +23 more
doaj   +1 more source

Local homogeneity

open access: yesJournal of Symbolic Logic, 2004
Abstract.We study the expansion of stable structures by adding predicates for arbitrary subsets. Generalizing work of Poizat-Bouscaren on the one hand and Baldwin-Benedikt-Casanovas-Ziegler on the other we provide a sufficient condition (Theorem 4.7) for such an expansion to be stable.
Baizhanov, Bektur, Baldwin, John T.
openaire   +4 more sources

Convergence rates of eigenvalue problems in perforated domains: the case of small volume

open access: yesAdvanced Nonlinear Studies
This paper is concerned with the Dirichlet eigenvalue problem for Laplace operator in a bounded domain with periodic perforation in the case of small volume.
Shen Zhongwei, Zhuge Jinping
doaj   +1 more source

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