Results 61 to 70 of about 188,550 (196)

THE INFLUENCE OF THE GRAVITATIONAL PERTURBATIONS OF THE SOLAR SYSTEM PLANETS ON THE EVOLUTION OF THEIR ORBITS’ ECCENTRICITIES AND INCLINATIONS

open access: yesРоссийский технологический журнал, 2017
In the paper the classic problem of N bodies is treated as if the mass of one body (the Sun) is much larger than the mass of the rest mutually gravitating bodies. We take as the unperturbed motion the movement of a planet in an elliptical orbit, with the
N. A. Akulova   +2 more
doaj   +1 more source

An image fusion system for corrective osteotomy of distal radius malunion

open access: yesBioMedical Engineering OnLine, 2021
Background To provide surgical support for corrective osteotomy, we developed an image fusion system for three-dimensional (3D) preoperative planning and fluoroscopy.
Yuichi Yoshii   +4 more
doaj   +1 more source

Embedding Optimization of Layouts via Distortion Minimization

open access: yesComputer Graphics Forum, EarlyView.
Abstract Given an embedding of a layout in the surface of a target mesh, we consider the problem of optimizing the embedding geometrically. Layout embeddings partition the surface into multiple disk‐like patches, making them particularly useful for parametrization and remeshing tasks, such as quad‐remeshing, since these problems can then be solved on ...
A. Heuschling, I. Lim, L. Kobbelt
wiley   +1 more source

Parallel Vectors Extraction using Bézier Clipping

open access: yesComputer Graphics Forum, EarlyView.
Abstract In this paper, we propose a novel local feature extraction algorithm for the parallel vectors (PV) operator. Our method is based on Bézier clipping, which is a bracketing‐based root finding method that is commonly‐used in computer‐aided geometric design.
Nico Daßler, Tobias Günther
wiley   +1 more source

Citrus quality grading based on statistical complexity measurement and multifractal spectrum method

open access: yes浙江大学学报. 农业与生命科学版, 2015
Citrus quality grading can raise the observability degree and grade degree of citrus, improving the product level and increasing market competitiveness.
Cao Leping, Wen Zhiyuan
doaj   +1 more source

A New Concept of PWM Duty Cycle Computation Using the Barycentric Coordinates in a Three–Dimensional Voltage Vectors Arrangement

open access: yesIEEE Access, 2020
The paper presents a novel approach to the Pulse Width Modulation (PWM) duty cycle computing for complex or irregular voltage vector arrangements in the two (2D) and three-dimensional (3D) Cartesian coordinate systems.
Pawel Szczepankowski   +4 more
doaj   +1 more source

Differentiable Randers‐Finsler Eikonal Solvers

open access: yesComputer Graphics Forum, EarlyView.
Abstract Fast and differentiable solvers for anisotropic and asymmetric distance fields are a key primitive in geometry processing, enabling gradient‐based optimization over metrics, drift fields, and downstream objectives that depend on geodesic distances and geodesics.
Barak Gahtan   +2 more
wiley   +1 more source

Second-order finite element discretization of Stokes equations on convex polygonal meshes

open access: yesResults in Applied Mathematics
In this paper, we construct two finite element discretizations on convex polygonal meshes for the Stokes equations, using the generalized barycentric coordinates (GBCs).
Yanyan Song, Yanqiu Wang, Qiao Xin
doaj   +1 more source

The Story(line) So Far: A Survey on Storyline Visualization

open access: yesComputer Graphics Forum, EarlyView.
Abstract Storyline visualizations model narratives as temporal networks, using x‐monotone lines to represent entities and their interactions over time. This technique offers an intuitive way to reveal structural patterns over time, such as character co‐occurrence and narrative flow.
S. Di Bartolomeo   +4 more
wiley   +1 more source

Barycentric coordinate neighbourhoods in Riemannian manifolds

open access: yesCoRR, 2016
We quantify conditions that ensure that a signed measure on a Riemannian manifold has a well defined centre of mass. We then use this result to quantify the extent of a neighbourhood on which the Riemannian barycentric coordinates of a set of $n+1$ points on an $n$-manifold provide a true coordinate chart, i.e., the barycentric coordinates provide a ...
Ramsay Dyer   +2 more
openaire   +2 more sources

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