Results 41 to 50 of about 8,038 (133)

A Variational Assimilation Method for Satellite and Conventional Data: a Revised Basic Model 2B [PDF]

open access: yes, 1991
A variational objective analysis technique that modifies observations of temperature, height, and wind on the cyclone scale to satisfy the five 'primitive' model forecast equations is presented.
Achtemeier, Gary L.   +2 more
core   +1 more source

Multivariate linear regression to predict association of non‐invasive arterial stiffness with cardiovascular events

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1141-1150, April 2025.
Abstract Background Arterial stiffness is a crucial factor in determining an increase in systolic blood pressure and pulse pressure and can also predict the development of cardiovascular disease (CVD). The purpose of this study was to examine the relationship between arterial stiffness and future CVD.
Susan Darroudi   +10 more
wiley   +1 more source

Intraday Functional PCA Forecasting of Cryptocurrency Returns

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT We study the functional PCA (FPCA) forecasting method in application to functions of intraday returns on Bitcoin. We show that improved interval forecasts of future return functions are obtained when the conditional heteroscedasticity of return functions is taken into account.
Joann Jasiak, Cheng Zhong
wiley   +1 more source

A kind of improved bivariate even order Bernoulli-type multiquadric quasi-interpolation operator and its application in two-dimensional coupled Burgers’ equations

open access: yesBoundary Value Problems
Multiquadric quasi-interpolation is an efficient high-dimensional approximation algorithm. It can directly obtain the approximation term and its derivatives without solving any large-scale linear equations.
Ruifeng Wu
doaj   +1 more source

Change-Point Detection and Bootstrap for Hilbert Space Valued Random Fields

open access: yes, 2016
The problem of testing for the presence of epidemic changes in random fields is investigated. In order to be able to deal with general changes in the marginal distribution, a Cram\'er-von Mises type test is introduced which is based on Hilbert space ...
Bucchia, Béatrice, Wendler, Martin
core   +1 more source

Elastoplasticity Informed Kolmogorov–Arnold Networks Using Chebyshev Polynomials

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Multilayer perceptron (MLP) networks are predominantly used to develop data‐driven constitutive models for granular materials. They offer a compelling alternative to traditional physics‐based constitutive models in predicting non‐linear responses of these materials, for example, elastoplasticity, under various loading conditions. To attain the
Farinaz Mostajeran, Salah A. Faroughi
wiley   +1 more source

Nonparametric Dark Energy Reconstruction from Supernova Data

open access: yes, 2010
Understanding the origin of the accelerated expansion of the Universe poses one of the greatest challenges in physics today. Lacking a compelling fundamental theory to test, observational efforts are targeted at a better characterization of the ...
A. Shafieloo   +9 more
core   +1 more source

What Are the Limitations of Measuring Bladder Compliance, As the Sole Indicator of Future Risk to the Upper Urinary Tract and Renal Function? ICI‐RS 2025

open access: yesNeurourology and Urodynamics, EarlyView.
ABSTRACT Introduction Maintenance of bladder filling and urinary storage at low intravesical pressures is fundamental to minimizing risk to the upper urinary tract. Bladder compliance describes the relationship between the bladder volume and the change in detrusor pressure during the filling phase of urodynamics.
Eric Rovner   +5 more
wiley   +1 more source

Evaluation of Mechanical, Thermal, Rheological, and Biocompatibility Properties of Additively Manufactured Metal‐Reinforced Biocomposites Optimized by Reinforcement Ratios and Printing Parameters

open access: yesPolymer Composites, EarlyView.
Schematic illustration of PLA/316L stainless steel composite filament production via fused deposition modeling, demonstrating the trade‐off between stainless steel content, mechanical enhancement, and biocompatibility. ABSTRACT Polylactic acid (PLA) is a biodegradable thermoplastic widely used in biomedical devices; however, its inherent brittleness ...
İbrahim Baki Sahin   +5 more
wiley   +1 more source

Design and Statistical Optimization of PLA Organoclay‐Based Dispersions for Recyclable Packaging Paper

open access: yesPolymer Engineering &Science, EarlyView.
Through experimental design, polylactic acid (PLA)—organoclay dispersions were optimized to produce biobased coatings that have a high barrier potential while maintaining repulpability, promoting sustainable packaging solutions. ABSTRACT Performance and recyclability of paper coatings depend on precise control of polymer, surfactant, filler ...
Abdenour Chenni   +7 more
wiley   +1 more source

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