Results 11 to 20 of about 272,024 (265)

An interpolatory subdivision algorithm for surfaces over arbitrary triangulations [PDF]

open access: yes, 1992
In this paper, an interpolatory subdivision algorithm for surfaces over ar-bitrary triangulations is introduced and its convergence properties over nonuni-form triangulations studied.
Qu, R
core   +6 more sources

Uniform subdivision algorithms for curves and surfaces [PDF]

open access: yes, 1988
A convergence analysis for studying the continuity and differentiability of limit curves generated by uniform subdivision algorithms is presented. The analysis is based on the study of corresponding difference and divided difference algorithms.
Gregory, JA, Dyn, N, Levin, D
core   +6 more sources

Recursive subdivision algorithms for curve and surface design [PDF]

open access: yes, 1990
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In this thesis, the author studies recursIve subdivision algorithms for curves and surfaces. Several subdivision algorithms are constructed and investigated.
Qu, Ruibin
core   +7 more sources

A 10-point interpolatory recursive subdivision algorithm for the generation of parametric surfaces [PDF]

open access: yes, 1991
In this paper, an interpolatory subdivision algorithm for surfaces over arbitrary triangulations is introduced and its properties over uniform triangulations studied.
Gregory, JA, Qu, R
core   +6 more sources

Acoustic topology optimization of sound absorbing materials directly from subdivision surfaces with isogeometric boundary element methods

open access: yes, 2020
This paper presents an acoustic topology optimization approach using isogeometric boundary element methods based on subdivision surfaces to optimize the distribution of sound adsorption materials adhering to structural surfaces.
Lei-Lei Chen   +7 more
semanticscholar   +1 more source

Isogeometric shape optimisation of shell structures using multiresolution subdivision surfaces [PDF]

open access: yesComput. Aided Des., 2016
We introduce the isogeometric shape optimisation of thin shell structures using subdivision surfaces. Both triangular Loop and quadrilateral Catmull-Clark subdivision schemes are considered for geometry modelling and finite element analysis.
Xiao Xiao, K. Bandara, F. Cirak
semanticscholar   +1 more source

Formal ratification of the subdivision of the Holocene Series/Epoch (Quaternary System/Period): two new Global Boundary Stratotype Sections and Points (GSSPs) and three new stages/subseries

open access: yesEpisodes, 2018
The Holocene is probably the most intensively studied series/epoch within the geological record, and embodies a wide array of geomorphological, climatic, biotic and archaeological evidence; yet little attention has hitherto been paid to a formal ...
M. Walker   +12 more
semanticscholar   +1 more source

Are There Differences in the Homogeneity of the Parts of Tablets Obtained after Subdivision?—A Preliminary Assessment Using an X-ray Microtomography

open access: yesPharmaceutics, 2022
Aim: The study aimed to analyze the weight and homogeneity of the parts of tablets containing carbamazepine and tablets with trazodone hydrochloride, obtained after subdivision with a kitchen knife. X-ray microtomography was used for homogeneity analysis.
Michał Meisner   +4 more
doaj   +1 more source

Class II Division 2 Subdivision Malocclusion in an Adult Patient treated with the Forsus Fatigue-resistant Device placed Unilaterally

open access: yesContemporary Clinical Dentistry, 2019
Treatment of Class II subdivision malocclusion is challenging, and orthodontists frequently struggle to determine the choice of treatment. Several treatment modalities have been proposed for correcting these types of malocclusion.
Oscar Mario Antelo   +4 more
doaj   +1 more source

Semantic Segmentation for Buildings of Large Intra-Class Variation in Remote Sensing Images with O-GAN

open access: yesRemote Sensing, 2021
Remote sensing building extraction is of great importance to many applications, such as urban planning and economic status assessment. Deep learning with deep network structures and back-propagation optimization can automatically learn features of ...
Shuting Sun   +5 more
doaj   +1 more source

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