Results 131 to 140 of about 57,073,214 (327)
A Method For Approximating Univariate Convex Functions Using Only Function Value Evaluations [PDF]
In this paper, piecewise linear upper and lower bounds for univariate convex functions are derived that are only based on function value information. These upper and lower bounds can be used to approximate univariate convex functions.
Siem, A.Y.D. +2 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Choroid plexus volume (CPV) has been proposed as a neuro‐immunological marker of multiple sclerosis (MS), but its relevance in myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD) remains uncertain. We analyzed CPV in 43 individuals with MOGAD, 48 with MS, and 44 healthy controls using a Bayesian Gaussian mixture modeling ...
Jae‐Won Hyun +4 more
wiley +1 more source
APPROXIMATION OF FREE-FORM CURVE – AIRFOIL SHAPE [PDF]
Journal of Engineering Science and Technology, 2013 Approximation of free-form shape is essential in numerous engineering applications, particularly in automotive and aircraft industries. Commercial CAD software for the approximation of free-form shape is based almost exclusively on parametric polynomial ...
CHONG PERK LIN, CHEONG KHAI YIP
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Arterial Spin‐Labeling MRI at the Cortical‐CSF Interface: A Novel Biomarker in Alzheimer Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background/Objective Arterial spin‐labeling (ASL) MRI can measure perfusion signal adjacent to CSF spaces and may provide information regarding CSF‐adjacent water transport physiology. We developed an automated pipeline to extract cortical‐CSF interface (IF) perfusion for comparison between Alzheimer disease (AD) and cognitively normal ...
Mona Asghariahmadabad +22 more
wiley +1 more source
Rational approximation of real functions
, 1988 Originally published in 1987, this book is devoted to the approximation of real functions by real rational ...
Popov, Vasil Atanasov, Petrushev, P P
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Gliomas have undergone a profound redefinition over the past decade, transitioning from morphology‐based entities to biologically coherent diseases defined by molecular alterations. The 2021 WHO Classification of Tumors of the Central Nervous System and its 2022 update formalize this shift, establishing integrated diagnosis as the global ...
Maria Guarnaccia, Sebastiano Cavallaro
wiley +1 more source
On rational functions without Froissart doublets
, 2017 In this talk we consider the problem of working with rational functions in a numeric environment. A particular problem when modelling with such functions is the existence of Froissart doublets, where a zero is close to a pole.
Matos, Ana
core +1 more source
Investigating the performance of single- and multichannel wireless receivers in generic-K fading channels [PDF]
Maejo International Journal of Science and Technology, 2011 By using versatile generic-K statistical model, a performance analysis of wireless system has been carried out through the composite fading channel scenarios.
Jyoteesh Malhotra
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background We aimed to identify the proportion of individuals with a confirmed diagnosis of childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE) who show a negative routine EEG (rEEG), and to determine the main factors associated with this finding.
Francesco Fortunato +7 more
wiley +1 more source
Suavizamiento de los vértices de un polígono por medio de un spline cónico
Revista Integración, 1997 We prove that every irreducible conic can be parametrically represented by two rational quadratic functions. An algorithm for smoothing the vertices of a poligonal by a conic spline with continuous tangent is proposed.
Victoria Hernádez Mederos
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