Results 21 to 30 of about 173,618 (310)
Geocarto International, 2023 In order to improve the comparability between the geometric information content of vector area objects, this article proposes a method for measuring the geometric information content of area objects based on discrepancy degree of shape points. First, the
Kang Qiankun +5 more
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Exploring Geometric Shapes with Touch [PDF]
, 2009 We propose a new technique to help users to explore geometric shapes without vision. This technique is based on a guidance using directional cues with a pin array. This is an alternative to the usual technique that consists of raising the pins corresponding to dark pixels around the cursor.
Thomas Pietrzak +4 more
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FEM Analysis of the Welding Seams Geometry in Case of Fillet Welds [PDF]
MATEC Web of Conferences, 2021 The role of the welding seam is to achieve the non-removable joint between two or more parts. In principle, three geometric profiles of the welding seams can be obtained: straight profile; concave profile and convex profile.
Babiş Claudiu +3 more
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Geometric morphometrics of rodent sperm head shape. [PDF]
PLoS ONE, 2013 Mammalian spermatozoa, particularly those of rodent species, are extremely complex cells and differ greatly in form and dimensions. Thus, characterization of sperm size and, particularly, sperm shape represents a major challenge. No consensus exists on a
María Varea Sánchez +2 more
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Animals, 2021 The analysis of body shape variability has always been a central element in biology. More recently, geometric morphometry has developed as a new field in shape analysis, with the aim to study body morphological variations and the identification of their ...
Cesare Pacioni +5 more
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Hydraulic Response to Geometry: Finite Element Modeling of Underground Spaces in Saturated Environments [PDF]
Journal of Hydraulic StructuresTunneling operations face a significant challenge in managing water inflow into excavated underground spaces, primarily initial or excavating caused discontinuities in tunnel walls.
Hadi Farhadian, Zahra Gholami
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A Geometric Framework for Stochastic Shape Analysis [PDF]
Foundations of Computational Mathematics, 2018 We introduce a stochastic model of diffeomorphisms, whose action on a variety of data types descends to stochastic evolution of shapes, images and landmarks. The stochasticity is introduced in the vector field which transports the data in the Large Deformation Diffeomorphic Metric Mapping (LDDMM) framework for shape analysis and image registration. The
Alexis Arnaudon +2 more
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Modeling and computation of two phase geometric biomembranes using surface finite elements [PDF]
, 2010 Biomembranes consisting of multiple lipids may involve phase separation phenomena leading to coexisting domains of different lipid compositions.
Stinner, Björn, Elliott, Charles M.
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CoRR, 2018 We present an algorithm to compute the geometric median of shapes which is based on the extension of median to high dimensions. The median finding problem is formulated as an optimization over distances and it is solved directly using the watershed method as an optimizer.
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Emotional triangles : a test of emotion-based attentional capture by simple geometric shapes [PDF]
, 2011 Previous work has proposed that simple geometric shapes, carrying the features present within negative or threatening faces are especially effective at capturing or guiding attention. Here we test this account and provide converging evidence for a threat-
Selwood, Sally +5 more
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