Results 101 to 110 of about 7,283 (217)

Fault Diagnosis of Rolling Bearings using Multifractal Detrended Fluctuation Analysis and Mahalanobis Distance Criterion

, 2012
Vibrations of a defective rolling bearing often exhibit nonstationary and nonlinear characteristics which are submerged in strong noise and interference components.
Gu, Fengshou, Lin, J., Lin, Jinshan, Tian, X., Gu, F., Tian, Xiange, Chen, Q., Chen, Qian   +7 more
core  

Graph‐Theory Approach to Element Miscibility and Alloy Design

Advanced Science, Volume 13, Issue 16, 18 March 2026.
Graph and network theory enables pathway toward complex multiscale interactions between different elements for alloy design or interface engineering. Utilizing element's inherent properties and preferential interactivity, favorable mixed material formation, solubility and miscibility can be predicted.
Andrew Martin, Kien Nguyen, Sebastian Zaatini, Michael Lastovich, Bharat Gwalani, Paul Bogdan, Martin M. Thuo   +6 more
wiley   +1 more source

Multifractal analysis of Power Markets. Some empirical evidence [PDF]

This work is intended to offer a comparative analysis of the statistical properties of hourly prices in the day–ahead electricity markets of several countries.
Marina Resta
core  

Construction of a Simple Multifractal Spectrum as an Alternative to the Legendre Spectra in Multifractal Formalisms

Recoletos Multidisciplinary Research Journal, 2013
It is important to realize at the beginning of a statistical analysis whether the data are from a monofractal or multifractal distribution because the methods of analysis are different for each. In seismic sequence analysis, for instance, the monofractal
Roberto N. Padua, Joel G. Adanza, Efren O. Barabat, Dionisel Y. Regalado   +3 more
doaj   +1 more source

Multi-Fractal Spectral Analysis of the 1987 Stock Market Crash [PDF]

The multifractal model of asset returns captures the volatility persistence of many financial time series. Its multifractal spectrum computed from wavelet modulus maxima lines provides the spectrum of irregularities in the distribution of market returns ...
CORNELIS A. LOS, ROSSITSA M. YALAMOVA
core  

Multifractal characterization and cross correlations of reference evapotranspiration time series of India

, 2021
This study performs the multifractal characterization of reference evapotranspiration (ET0) and its controlling factors of five locations in India with climatic diversity. First, the ET0 and the predictor variables like minimum air temperature ($$T_{min})
Nandhineekrishna, P., Sarang, R., L. J. Nityanjaly, P. Nandhineekrishna, Nityanjaly, L. J., Ali, Mumtaz, S. Adarsh, Mumtaz Ali, Pham, Quoc Bao, Quoc Bao Pham, Adarsh, S., R. Sarang   +11 more
core   +1 more source

Machine-learning classification with additivity and diverse multifractal pathways in multiplicativity

Physical Review Research
Evidence of multifractal structures has spread to a wider set of physiological time series supporting the intricate interplay of biological and psychological functioning.
Madhur Mangalam, Henrik Seckler, Damian G. Kelty-Stephen   +2 more
doaj   +1 more source

Wavelet Leaders Based Vibration Signals Multifractal Features of Plunger Pump in Truck Crane

Advances in Mechanical Engineering, 2013
Vibration signal of plunger pump in truck crane is a typical nonlinear, nonstationary signal, and the multifractal features are a powerful tool for depicting the geometry features of such signals.
Wenliao Du, Chunyan Yang, Ansheng Li, Liangwen Wang   +3 more
doaj   +1 more source

Challenging the Efficient Market Hypothesis: Multifractal Insights into Price – Volume Cross-Correlations in the S&P 500

Scientific Annals of Economics and Business
This study investigates the multifractal behaviour of prices, trading volume, and their cross-correlations in the S&P 500 index over the 2004–2024 period.
Sermet Doğan, Sinan Aytekin
doaj   +1 more source

Multifractal Desynchronization of the Cardiac Excitable Cell Network During Atrial Fibrillation. II. Modeling

Frontiers in Physiology, 2019
In a companion paper (I. Multifractal analysis of clinical data), we used a wavelet-based multiscale analysis to reveal and quantify the multifractal intermittent nature of the cardiac impulse energy in the low frequency range ≲ 2Hz during atrial ...
Guillaume Attuel, Evgeniya Gerasimova-Chechkina, Françoise Argoul, Hussein Yahia, Alain Arneodo   +4 more
doaj   +1 more source