Results 71 to 80 of about 30,004 (201)

1165. Echinacea purpurea (L.) Moench

open access: yesCurtis's Botanical Magazine, EarlyView.
Summary Echinacea purpurea (L.) Moench (Compositae: Heliantheae: Zinniinae) is described and illustrated with a colour plate and black and white text figure. An introduction to the history of the appearance of this species in the Magazine appears in brief, together with comments on the treatment of the genus, and the available generic revisions.
Nicholas Hind   +2 more
wiley   +1 more source

Stochastic Optimization using Polynomial Chaos Expansions

open access: yes, 2020
Polynomial chaos based methods enable the efficient computation of output variability in the presence of input uncertainty in complex models. Consequently, they have been used extensively for propagating uncertainty through a wide variety of physical systems.
openaire   +2 more sources

Uncertainty quantification via polynomial chaos expansion of myocardial fibre orientation and cardiac activation patterns

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Graphical representation of methods. We implemented three biventricular geometric models (Zenger et al., 2020) with rule‐based myocardial fibre orientations (Bayer et al., 2018). We evaluated variability in the fibre orientation via four sets of parameter distributions to determine the role of the primary and imbrication angles ...
Lindsay C. R. Tanner   +8 more
wiley   +1 more source

Interval Uncertainty Analysis for Wheel–Rail Contact Load Identification Based on First-Order Polynomial Chaos Expansion

open access: yesMathematics
Traditional methods for identifying wheel–rail contact loads are based on deterministic models, in which the uncertainties such as material inhomogeneity and geometric tolerance are not considered. For wheel–rail contact load analysis with uncertainties,
Shengwen Yin, Haotian Xiao, Lei Cao
doaj   +1 more source

Non-intrusive uncertainty quantification in structural-acoustic systems using polynomial chaos expansion method

open access: yesMATEC Web of Conferences, 2017
A framework of non-intrusive polynomial chaos expansion method (PC) was proposed to investigate the statistic characteristics of the response of structural-acoustic system containing random uncertainty.
Wang Mingjie   +4 more
doaj   +1 more source

Sensitivity Analysis of an Implanted Antenna within Surrounding Biological Environment

open access: yesEnergies, 2020
The paper describes the sensitivity analysis of a wireless power transfer link involving an implanted antenna within the surrounding biological environment. The approach combines a 3D electromagnetic modeling and a surrogate model (based polynomial chaos
Shuoliang Ding, Lionel Pichon
doaj   +1 more source

Deep Polynomial Chaos Expansion

open access: yes
Polynomial chaos expansion (PCE) is a classical and widely used surrogate modeling technique in physical simulation and uncertainty quantification. By taking a linear combination of a set of basis polynomials - orthonormal with respect to the distribution of uncertain input parameters - PCE enables tractable inference of key statistical quantities ...
Exenberger, Johannes   +2 more
openaire   +2 more sources

Reliability-Based Robust Design Optimization Using Data-Driven Polynomial Chaos Expansion

open access: yesMachines
As the complexity of modern engineering systems continues to increase, traditional reliability analysis methods still face challenges regarding computational efficiency and reliability in scenarios where the distribution information of random variables ...
Zhaowang Li   +3 more
doaj   +1 more source

General polynomial chaos‐based expansion finite‐difference time‐domain method for analysing electromagnetic wave propagation in random dispersive media

open access: yesIET Microwaves, Antennas & Propagation, 2021
A new approach for using polynomial chaos‐based expansion finite‐difference time‐domain (PCE‐FDTD) is presented to calculate the uncertainty of electromagnetic wave propagation in dispersive materials.
Jiangfan Liu, Huiping Li, Xiaoli Xi
doaj   +1 more source

Development and Optimization of a Nanophytosomes‐Based Thermogel as a Topical Anti‐Psoriatic for Increased Solubility and Bioavailability

open access: yesMedComm – Biomaterials and Applications, Volume 5, Issue 2, June 2026.
Schematic illustration of the development, optimization, and therapeutic evaluation of the Leucas aspera phytosome‐based thermogel for topical antipsoriatic therapy, highlighting its enhanced solubility, skin deposition, and in vivo efficacy in an imiquimod‐induced psoriasis model. Created with BioRender.com.
Ananda Kumar Chettupalli   +2 more
wiley   +1 more source

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