Results 141 to 150 of about 5,207,763 (284)

Gaussian noise filtering from ECG by Wiener filter and ensemble empirical mode decomposition

open access: yes, 2010
[[abstract]]Empirical mode decomposition (EMD) is a powerful algorithm that decomposes signals as a set of intrinsic mode function (IMF) based on the signal complexity.
Kang-Ming Chang; Keng-Ming Chang; Shing-Hong Liu
core  

Probabilistic prediction of rate‐dependent rock strength using natural gradient boosting and Gaussian process regression

open access: yesDeep Underground Science and Engineering, EarlyView.
Probabilistic natural gradient boosting and Gaussian process regression models accurately predict rate‐dependent rock strength across lithologies. Static strength and strain rate dominate, while geometric factors have minimal influence, enabling interpretable and uncertainty‐aware predictions for dynamic geomechanical applications. Abstract The dynamic
Hadi Fathipour‐Azar
wiley   +1 more source

Dynamic improved complete ensemble empirical mode decomposition

open access: yes, 2020
Görgül Kip Ayrışımı ((EMD) ̇) doğrusal olmayan sistemlerden kaynaklanan durağan olmayan işaretleri analiz etmek için kullanılan adaptif (veri-beslemeli) bir zaman/frekans metodudur. (EMD) ̇'nin en önemli problemi orjinal sinyal analiz edilirken elde edilen `mod-karıştırması` denilen fenomendir.
openaire   +1 more source

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

open access: yesDeep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong   +6 more
wiley   +1 more source

基于迭代的集总经验模式分解算法的齿轮箱故障特征提取

open access: yesJixie chuandong, 2011
Aimed at the drawback of blindly adding white noise occurring in the ensemble empirical mode decomposition(EEMD) when used to solver realistic problems,the iterative ensemble empirical mode decomposition(IEEMD) method is proposed.To begin with,the IEEMD ...
姜军生, 林近山
doaj  

Heterogeneous Single/Dual‐Atom Electrocatalysts in Lithium–Sulfur Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in single‐atom and dual‐atom electrocatalysts for high‐performance lithium–sulfur batteries. The text systematically covers the classification of catalysts by active metal centers, key synthesis methods, in situ characterization for mechanistic insights, and electrocatalytic mechanisms.
Wenbin Li   +3 more
wiley   +1 more source

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