Results 31 to 40 of about 14,964 (289)

A Phase Field Model for Continuous Clustering on Vector Fields [PDF]

open access: yes, 2001
A new method for the simplification of flow fields is presented. It is based on continuous clustering. A well-known physical clustering model, the Cahn Hilliard model, which describes phase separation, is modified to reflect the properties of the data to
Garcke, Harald,   +5 more
core   +2 more sources

On the motion of hairy black holes in Einstein-Maxwell-dilaton theories [PDF]

open access: yes, 2016
Starting from the static, spherically symmetric black hole solutions in massless Einstein-Maxwell-dilaton (EMD) theories, we build a "skeleton" action, that is, we phenomenologically replace black holes by an appropriate effective point particle action ...
Benjamin K. Keitz (1969399)   +4 more
core   +3 more sources

Automatic Pattern Recognition of Tectonic Lineaments in Seafloor Morphology to Contribute in the Structural Analysis of Potentially Hydrocarbon-Rich Areas

open access: yesRemote Sensing, 2020
This work presents novel pattern recognition techniques applied on bathymetric data from two large areas in Eastern Mediterranean. Our objectives are as follows: (a) to demonstrate the efficiency of this methodology, (b) to highlight the quick and ...
Eleni Kokinou, Costas Panagiotakis
doaj   +1 more source

Phase space path integral in curved space [PDF]

open access: yes, 2000
Phase space path integral is worked out in a riemannian geometry, by employing a prescription for the infinitesimal propagator that takes riemannian normal coordinates and momenta on an equal footing.
Ferraro, R., Leston, M.
core   +3 more sources

Computation of Thickness and Mechanical Properties of Interconnected Structures: Accuracy, Deviations, and Approaches for Correction

open access: yesFrontiers in Materials, 2019
Identifying local thickness information of fibrous or highly porous structures is challenging. The analysis of tomography data calls for computationally fast, robust, and accurate algorithms. This work systematically investigates systematic errors in the
Claudia Richert   +4 more
doaj   +1 more source

Pore Space Characterization of Carbonated Binary Micro-Computed Tomography Images, Case Study [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
Pore space characterization helps a better understanding of porous media. The pore geometry and topological properties in carbonated rocks are important for a better understanding of the complex hydrologic and elastic properties.
Mohammad Ashrafi   +2 more
doaj   +1 more source

A modified K3M thinning algorithm

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2016
The K3M thinning algorithm is a general method for image data reduction by skeletonization. It had proved its feasibility in most cases as a reliable and robust solution in typical applications of thinning, particularly in preprocessing for optical ...
Tabedzki Marek   +2 more
doaj   +1 more source

Fast and robust curve skeletonization for real-world elongated objects

open access: yes, 2018
We consider the problem of extracting curve skeletons of three-dimensional, elongated objects given a noisy surface, which has applications in agricultural contexts such as extracting the branching structure of plants. We describe an efficient and robust
Medeiros, Henry, Tabb, Amy
core   +1 more source

Automation Process for Morphometric Analysis of Volumetric CT Data from Pulmonary Vasculature in Rats [PDF]

open access: yes, 2010
With advances in medical imaging scanners, it has become commonplace to generate large multidimensional datasets. These datasets require tools for a rapid, thorough analysis. To address this need, we have developed an automated algorithm for morphometric
Krenz, Gary S.   +2 more
core   +2 more sources

Pore Space Quantification of Three Sandstones Binary Micro CT Images [PDF]

open access: yesMuhandisī-i manābi̒-i ma̒danī
The pore geometry and topology properties of rocks are significant for a better understanding of the complex hydrologic and elastic properties. If the complexity of porous media is considered, reliable results can achieve. In three-dimensional imaging of
M. Ashrafi   +2 more
doaj   +1 more source

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