Results 221 to 230 of about 302,460 (378)

Electrical properties based B1+ prediction for electrical properties tomography reconstruction evaluation

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose In MR electrical properties tomography (EPT), conductivity and permittivity are reconstructed from MR measurements. However, depending on the reconstruction method, reconstructed electrical properties (EPs) show large variability in vivo, reducing confidence in the reconstructed values for clinical application in practice.
Thierry G. Meerbothe   +5 more
wiley   +1 more source

Subdivision method in the Laplacian matching polynomial [PDF]

open access: yesarXiv
As a bridge connecting the matching polynomial and the Laplacian matching polynomial of graphs, the subdivision method is expected to be useful for investigating the Laplacian matching polynomial. In this paper, we study applications of the method from three aspects.
arxiv  

SCT‐BEM for Transient Heat Conduction and Wave Propagation in 2D Thin‐Walled Structures

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Traditional boundary element method (BEM) faces significant challenges in addressing dynamic problems in thin‐walled structures. These challenges arise primarily from the complexities of handling time‐dependent terms and nearly singular integrals in structures with thin‐shapes.
Xiaotong Gao, Yan Gu
wiley   +1 more source

Quantifying community keystoneness in metacommunities under disturbance

open access: yesOikos, EarlyView.
Understanding how metacommunities respond to natural and anthropogenic disturbances is a key objective in ecology. In this study, we introduce an analytical framework to identify communities whose extirpation triggers stronger (hereafter keystone communities) or weaker (hereafter idle communities) cascading effects on extinction and colonization events
Gabriel Khattar, Pedro R. Peres-Neto
wiley   +1 more source

Bounds for ratios of eigenvalues of the Dirichlet Laplacian [PDF]

open access: bronze, 1994
Mark S. Ashbaugh, Rafael D. Benguria
openalex   +1 more source

A Pragmatic Approach to Handling Censored Data Below the Lower Limit of Quantification in Pharmacokinetic Modeling

open access: yesCPT: Pharmacometrics &Systems Pharmacology, EarlyView.
ABSTRACT Proper handling of data below the lower limit of quantification (BLQ) is crucial for accurate pharmacokinetic parameter estimation. The M3 method proposed by Beal uses a likelihood‐based approach that is precise but has been reported to suffer from numerical issues in converging.
Marie Wijk   +4 more
wiley   +1 more source

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