Results 31 to 40 of about 130,023 (314)

Fuzzy B-Spline Surface Modeling

open access: yesJournal of Applied Mathematics, 2014
This paper discusses the construction of a fuzzy B-spline surface model. The construction of this model is based on fuzzy set theory which is based on fuzzy number and fuzzy relation concepts.
Rozaimi Zakaria   +2 more
doaj   +1 more source

Parametric Curve Comparison for Modeling Floating Offshore Wind Turbine Substructures

open access: yesEnergies, 2023
The drive for the cost reduction of floating offshore wind turbine (FOWT) systems to the levels of fixed bottom foundation turbine systems can be achieved with creative design and analysis techniques of the platform with free-form curves to save ...
Adebayo Ojo   +2 more
doaj   +1 more source

Volumetric Untrimming: Precise decomposition of trimmed trivariates into tensor products

open access: yes, 2019
3D objects, modeled using Computer Aided Geometric Design tools, are traditionally represented using a boundary representation (B-rep), and typically use spline functions to parameterize these boundary surfaces.
Antolin, Pablo   +2 more
core   +1 more source

B-Spline-ORB Feature Point Extraction Algorithm

open access: yesJournal of Harbin University of Science and Technology, 2022
Aiming at the problem of poor scale invariance of traditional ORB algorithms, this paper proposes an ORB algorithm based on image golden tower. Firstly, Gauss image pyramid and B-Spline image pyramid are studied, and the two image pyramids are discussed ...
LIU Ming-zhu   +3 more
doaj   +1 more source

A quintic B-spline technique for a system of Lane-Emden equations arising in theoretical physical applications

open access: yesAIMS Mathematics
In the present study, we introduce a collocation approach utilizing quintic B-spline functions as bases for solving systems of Lane Emden equations which have various applications in theoretical physics and astrophysics. The method derives a solution for
Osama Ala'yed   +3 more
doaj   +1 more source

Locally Controllable Attitude B-Spline Function

open access: yesIEEE Access
Continuous attitude spline functions are used in computer animation and in the generation of virtual inertial sensor data. Unlike the B-spline functions in $R^{3}$ , it is not easy to locally control attitude the B-spline function in $SO(3)$ .
Young Soo Suh
doaj   +1 more source

Changes in Immune‐Inflammation Status and Acute Ischemic Stroke Prognosis in Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Inflammation is a critical risk factor for poor outcomes in cerebral infarction. Prior studies focused primarily on baseline inflammation status, neglecting dynamic longitudinal changes. We try to investigate the association between immune‐inflammation status alterations and stroke prognosis, and evaluated three systemic biomarkers'
Songfang Chen   +11 more
wiley   +1 more source

Método de restitución fotográfica a partir de elementos circulares mediante uso de arcos tipo B-Splines cónicas, aplicado al "Diorama" de la exposición "La Nova Barcelona" (1934). Aportaciones para su futura museografía

open access: yesEGA, 2013
Aplicación de un nuevo método para la restitución fotográfica (de fotografía única) a partir de elementos circulares presentes en la proyección, mediante la adaptación interactiva de arcos de tipo b-spline cuadráticas (cónicas), con la finalidad de ...
Galdric Santana   +1 more
doaj   +1 more source

Fast Selection of Spectral Variables with B-Spline Compression [PDF]

open access: yes, 2007
The large number of spectral variables in most data sets encountered in spectral chemometrics often renders the prediction of a dependent variable uneasy.
François, Damien   +4 more
core   +5 more sources

Hospital Readmission After Traumatic Brain Injury Hospitalization in Community‐Dwelling Older Adults

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the risk of hospital readmission after an index hospitalization for TBI in older adults. Methods Using data from the Atherosclerosis Risk in Communities (ARIC) study, we used propensity score matching of individuals with an index TBI‐related hospitalization to individuals with (1) non‐TBI hospitalizations (primary analysis)
Rachel Thomas   +7 more
wiley   +1 more source

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