Results 31 to 40 of about 1,410,709 (264)

Universal Shapes? Analysis of the Shape of Antarctic Tafoni [PDF]

open access: yesGeosciences, 2019
Using dimensional data from over 700 tafoni in Antarctica, this paper identifies how the dimensionless ratios of width/length (W/L) and depth/length (D/L) vary with tafoni length. The analysis suggests that these ratios do tend to converge to values that are similar to those found for fragments produced by brittle fracture and fragmentation.
Inkpen, Rob, Hall, Kevin
openaire   +3 more sources

Segmentation and Shape Analysis of Macrophages Using Anglegram Analysis

open access: yesJournal of Imaging, 2017
Cell migration is crucial in many processes of development and maintenance of multicellular organisms and it can also be related to disease, e.g., Cancer metastasis, when cells migrate to organs different to where they originate.
José Alonso Solís-Lemus   +3 more
doaj   +1 more source

Lazy Shape Analysis [PDF]

open access: yes, 2006
Many software model checkers are based on predicate abstraction. If the verification goal depends on pointer structures, the approach does not work well, because it is difficult to find adequate predicate abstractions for the heap. In contrast, shape analysis, which uses graph-based heap abstractions, can provide a compact representation of ...
Dirk Beyer 0001   +2 more
openaire   +4 more sources

Extreme Shape Analysis

open access: yesJournal of the Royal Statistical Society Series C: Applied Statistics, 2005
SummaryWe consider the analysis of extreme shapes rather than the more usual mean- and variance-based shape analysis. In particular, we consider extreme shape analysis in two applications: human muscle fibre images, where we compare healthy and diseased muscles, and temporal sequences of DNA shapes from molecular dynamics simulations.
Dryden, Ian L., Zempléni, András
openaire   +1 more source

Pairwise Harmonics for Shape Analysis [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2013
This paper introduces a simple yet effective shape analysis mechanism for geometry processing. Unlike traditional shape analysis techniques which compute descriptors per surface point up to certain neighborhoods, we introduce a shape analysis framework in which the descriptors are based on pairs of surface points.
Youyi Zheng   +3 more
openaire   +3 more sources

Alterations of Subcortical Brain Structures in Paradoxical and Psychophysiological Insomnia Disorder

open access: yesFrontiers in Psychiatry, 2021
Insomnia disorder (ID) is a common illness associated with mood and cognitive impairments. Subtyping ID is an ongoing debate in sleep medicine, but the underlying mechanisms of each subtype is poorly understood. Growing evidence suggests that subcortical
Farnoosh Emamian   +9 more
doaj   +1 more source

Statistical Shape Analysis of Large Datasets Based on Diffeomorphic Iterative Centroids

open access: yesFrontiers in Neuroscience, 2018
In this paper, we propose an approach for template-based shape analysis of large datasets, using diffeomorphic centroids as atlas shapes. Diffeomorphic centroid methods fit in the Large Deformation Diffeomorphic Metric Mapping (LDDMM) framework and use ...
Claire Cury   +22 more
doaj   +1 more source

Geometric morphometric analysis of the condylus occipitalis and foramen magnum in sheep and goat [PDF]

open access: yesEurasian Journal of Veterinary Sciences, 2023
Aim: The aim of this study was to reveal the dimorphic structures of the foramen magnum and condyle occipitalis through an interspecies shape analysis and to determine the variability between sheep and goats.
Ismail Demircioglu   +4 more
doaj  

Detection of Shape Manufacturing Defects of Flat Fan-Pattern Nozzle Orifices Using Elliptic Fourier Descriptors

open access: yesJournal of Agricultural Sciences, 2016
Shape defects originating from the manufacture in the orifice openings of the flat fan-pattern nozzles may result in deteriorating the spray pattern. This study has been conducted with the aim of detecting the manufacturing defects of the fan-pattern ...
Bahadır Sayıncı
doaj   +1 more source

A Statistical Shape-Based Patient-Specific Anatomical Structure Model

open access: yesIEEE Access, 2022
A patient-specific anatomical structure model has been widely used in many medical applications. However, in practical applications, to effectively construct a patient-specific anatomical structure model is a challenge, the reasons are: 1) the manual ...
Zhuye Xu, Xiaoqiang Zhao
doaj   +1 more source

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