Results 91 to 100 of about 11,601 (226)
Underground SpaceUnderstanding the variation patterns of tunnel boring machine (TBM) operational parameters is crucial for assessing engineering geological conditions and quality grades of surrounding rock within tunnels.
Junjie Ma +5 more
doaj +1 more source
Earth and Space Science, Volume 13, Issue 4, April 2026.Abstract Solar activity is usually characterized by different indices from different perspectives, which are commonly interconnected and contain nonstationary oscillations (NSOs). Given the significant influence of solar activity on space weather, the Earth and humans, it is of great significance to predict solar activity for better understanding not ...
Shan Jiang +4 more
wiley +1 more source
A Mathematical Review and Improvement of the Multifractal Analysis
IEEE AccessThis article presents a focused mathematical study of multifractal analysis, building on previous applications to reservoir rock characterization. Here, we revisit the theoretical foundations by summarizing key multifractal measures and classification ...
Fawaz Hjouj, Mohamed Soufiane Jouini
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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
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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
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Chatter detection for milling using novelp-leader multifractal features
, 2020 Chatter in machining results in poor workpiece surface quality and short tool life. An accurate and reliable chatter detection method is needed before its complete development.
Hou, Liang +5 more
core +1 more source
, 2010 In this paper, based on scanning electron microscope (SEM), the fracture morphology of poly(ethylene-co-vinyl acetate)/carbon black (EVA/CB) conductive composite with various cross-linkers 2,4-di(2-phenylisopropyl) phenol (DCP) contents were analysed by ...
Bai, Bao-Feng +5 more
core +1 more source
Multifractality in time series [PDF]
Journal of Physics A: Mathematical and General, 2000 22 pages, Revtex, 4 ps figures - To appear J. Phys. A (2000)
openaire +3 more sources
Random fields of variable order on multifractal domains
, 2004 We introduce a class of random …eld models with variable regularity/singularity order on multifractal\ud domains. The derivation of results on atomic decomposition of functions in fractional\ud Sobolev spaces of variable order, and traces of these spaces
Anh, Vo V. +2 more
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Forecasting volatility and volume in the Tokyo stock market: The advantage of long memory models [PDF]
We investigate the predictability of both volatility and volume for a large sample of Japanese stocks. The particular emphasis of this paper is on assessing the performance of long memory time series models in comparison to their short-memory ...
Kaizoji, Taisei, Lux, Thomas
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