Results 1 to 10 of about 90,070 (198)

A Minimalist Approach to Type-Agnostic Detection of Quadrics in Point Clouds [PDF]

open access: yes, 2018
This paper proposes a segmentation-free, automatic and efficient procedure to detect general geometric quadric forms in point clouds, where clutter and occlusions are inevitable.
Birdal, Tolga   +4 more
core   +4 more sources

How round is a protein? Exploring protein structures for globularity using conformal mapping. [PDF]

open access: yes, 2014
We present a new algorithm that automatically computes a measure of the geometric difference between the surface of a protein and a round sphere. The algorithm takes as input two triangulated genus zero surfaces representing the protein and the round ...
Hass, Joel, Koehl, Patrice
core   +2 more sources

Spectral Generalized Multi-Dimensional Scaling [PDF]

open access: yes, 2013
Multidimensional scaling (MDS) is a family of methods that embed a given set of points into a simple, usually flat, domain. The points are assumed to be sampled from some metric space, and the mapping attempts to preserve the distances between each pair ...
Aflalo, Yonathan   +2 more
core   +1 more source

Partitions of Minimal Length on Manifolds [PDF]

open access: yes, 2016
We study partitions on three dimensional manifolds which minimize the total geodesic perimeter. We propose a relaxed framework based on a $\Gamma$-convergence result and we show some numerical results.
Bogosel, Beniamin, Oudet, Edouard
core   +2 more sources

On the two-dimensional rotational body of maximal Newtonian resistance [PDF]

open access: yes, 2009
We investigate, by means of computer simulations, shapes of nonconvex bodies that maximize resistance to their motion through a rarefied medium, considering that bodies are moving forward and at the same time slowly rotating.
A Yu Plakhov   +11 more
core   +2 more sources

Stored energies in electric and magnetic current densities for small antennas [PDF]

open access: yes, 2013
Electric and magnetic currents are essential to describe electromagnetic stored energy, as well as the associated quantities of antenna Q and the partial directivity to antenna Q-ratio, D/Q, for general structures. The upper bound of previous D/Q-results
Gustafsson, Mats, Jonsson, B. L. G.
core   +1 more source

Design for Additive Manufacturing: A Method to Explore Unexplored Regions of the Design Space [PDF]

open access: yes, 2007
Additive Manufacturing (AM) technologies enable the fabrication of parts and devices that are geometrically complex, have graded material compositions, and can be customized.
Rosen, David W.
core   +1 more source

Median Shapes

open access: yes, 2018
We introduce and begin to explore the mean and median of finite sets of shapes represented as integral currents. The median can be computed efficiently in practice, and we focus most of our theoretical and computational attention on medians.
Hu, Yunfeng   +4 more
core   +1 more source

Simultaneous elastic shape optimization for a domain splitting in bone tissue engineering

open access: yes, 2018
This paper deals with the simulateneous optimization of a subset $\mathcal{O}_0$ of some domain $\Omega$ and its complement $\mathcal{O}_1 = \Omega \setminus \overline{\mathcal{O}}_0$ both considered as separate elastic objects subject to a set of ...
Dondl, Patrick   +3 more
core   +1 more source

Key Challenges and Opportunities in Hull Form Design Optimisation for Marine and Offshore Applications [PDF]

open access: yes, 2015
New environmental regulations and volatile fuel prices have resulted in an ever-increasing need for reduction in carbon emission and fuel consumption.
Ang, J.H., Goh, C., Li, Y.
core   +1 more source

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