Results 61 to 70 of about 23,173,603 (235)

Effects of Single and Multiple Dose Tiotropium/Olodaterol in Chronic Obstructive Pulmonary Disease on Alveolar Gas Exchange Measured by Hyperpolarized 129Xe MRI

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Long‐acting muscarinic antagonists/long‐acting beta adrenoreceptor agonists lead to lung deflation and improved microvascular perfusion in hyperinflated chronic obstructive pulmonary disease (COPD), but with an unclear time course. Purpose To investigate the effect of inhalation of tiotropium/olodaterol (TIO/OLO) on MRI measures of ...
Agilo L. Kern   +7 more
wiley   +1 more source

Analysis of the structural complexity of Crab Nebula observed at radio frequency using a multifractal approach

open access: yesJournal of Physics: Complexity
The Crab Nebula is an astrophysical system that exhibits complex morphological patterns at different observing frequencies. We carry out a systematic investigation of the structural complexity of the nebula using publicly available imaging data at radio ...
Athokpam Langlen Chanu   +4 more
doaj   +1 more source

Rescaled Range Analysis and Detrended Fluctuation Analysis: Finite Sample Properties and Confidence Intervals [PDF]

open access: yes
We focus on finite sample properties of two mostly used methods of Hurst exponent H estimation—rescaled range analysis (R/S) and detrended fluctuation analysis (DFA).
Ladislav Krištoufek
core  

EOG DENOISING USING EMPIRICAL MODE DECOMPOSITION AND DETRENDED FLUCTUATION ANALYSIS

open access: yes, 2021
In this study, a method is presented for the removal of electrooculogram (EOG) noise from electroencephalography (EEG) recordings by using recently proposed data driven approach called Empirical Mode Decomposition (EMD).
Mert, Ahmet, Akkurt, Nihan, Akan, Aydin
core   +1 more source

Are All “Good” Employees Susceptible to Moral Biases? Exceptional (Versus Intermediate) Moral Character Shapes Resilience to Daily “DIAMONDS” Situations That Trigger Moral Disengagement

open access: yesJournal of Organizational Behavior, EarlyView.
ABSTRACT The non‐rationalist view of morality holds that all employees—including “good” apples—are liable to do bad because they are susceptible to moral biases in everyday situational encounters. In contrast, the rationalist or trait view suggests that employees with strong moral character should be resilient against moral biases across situations and
Babatunde Ogunfowora   +3 more
wiley   +1 more source

Climatology of Tropical Cyclones Approaching Tanzania and Their Impacts on Rainfall in East Africa

open access: yesInternational Journal of Climatology, EarlyView.
Tropical cyclones (TCs) that approach Tanzania bring heavy rainfall over northern Mozambique, Tanzania, and south‐central Kenya, but the occurrence of these TCs reduces precipitation over southern African countries. Easterly steering winds and the Mascarene High are key features directing TCs westward.
Michinori Ideyoshi, Youichi Kamae
wiley   +1 more source

Detrended fluctuation analysis for gear fault diagnosis [PDF]

open access: yes, 2009
The paper presented a method of detecting long - range correlation in a signal-detrended fluctuation analysis (DFA) and applied it to diagnose gear faults. Two key problems, i. e.
Li, Li, Peng, Zhongxiao, Peng, Shuzhi
core   +1 more source

Detection of Pipeline Leaks Using Fractal Analysis of Acoustic Signals

open access: yesFractal and Fractional
In this paper, the possibility of using monofractal and multifractal analysis of acoustic signals of pipelines to detect leaks is considered. An experimental stand has been created to study the fractal characteristics of acoustic signals of pipelines ...
Ayrat Zagretdinov   +5 more
doaj   +1 more source

Self-Similar Models: Relationship between the Diffusion Entropy Analysis, Detrended Fluctuation Analysis and Lévy Models

open access: yesMathematics, 2020
Financial and geophysical data, like many other low and high frequency time series, are known to exhibit some memory effects. These memory effects may be long or short, permanent or temporal depending on the event that is being modeled.
Maria C. Mariani   +6 more
doaj   +1 more source

Last‐minute coordination: Adapting to demand to support last‐mile operations

open access: yesJournal of Operations Management, Volume 71, Issue 2, Page 176-194, March 2025.
Abstract In the highly competitive e‐commerce industry, customer‐facing warehouses are crucial as the “order penetration points” for e‐commerce last‐mile operations. This research examines how warehouses use last‐minute coordination, an unstructured mechanism, to ensure sufficient inventory at the order penetration points. Previous research has focused
Kedong Chen   +3 more
wiley   +1 more source

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