Results 71 to 80 of about 134,237 (204)

Analysis of Multifractal Characteristics and Detrended Cross-Correlation of Conventional Logging Data Regarding Igneous Rocks

Fractal and Fractional
In the current context of the global energy landscape, China is facing a growing challenge in oil and gas exploration and development. It is difficult to evaluate the log data because of the lithological composition of igneous rocks, which displays an ...
Shiyao Wang, Dan Mou, Xinghua Qi, Zhuwen Wang   +3 more
doaj   +1 more source

Forhandlinger ved graven : samspill og spenninger mellom pårørende, gravferdsbyrå og Den norske kirke lokalt [PDF]

, 2023
publishedVersio
Saxegaard, Fredrik, Hanseid, Ingvild Lalim, Kaufman, Tone Stangeland, Westly, Inge, Kappelgaard, Dorte, Danbolt, Lars Johan   +5 more
core  

Comparative Analysis of Cryptocurrency Market Efficiency and Local Features Using MF-DFA and DCC-GARCH

Fractal and Fractional
This study investigates time-varying market efficiency and cross-market correlations in cryptocurrency markets across South Korea, the United States, and Japan.
Do-Hyeon Kim, Jun-Hyeok Lee, Sun-Yong Choi   +2 more
doaj   +1 more source

MF-DFA–Enhanced Deep Learning for Robust Sleep Disorder Classification from EEG Signals

Fractal and Fractional
Sleep disorders are prevalent in the world, and they lead to severe health issues such as cardiovascular disease and cognitive disabilities. Conventional polysomnography-based diagnosis is based on manual EEG analysis under the supervision of trained ...
Abdulaziz Alorf
doaj   +1 more source

Comparison of MF-DFA spectrum from waking EEG to numerical models of mono- and multifractal processes.

, 2013
Data points represent individual D(h) and h values from MF-DFA from a single time series of each type. waking: waking EEG (8 m, n = 120,000) from a single subject; shuffled: waking EEG with values shuffled prior to MF-DFA analysis; BMS: binomial ...
Todd Zorick (429928), Mark A. Mandelkern (429929)   +1 more
core   +1 more source

The Research of the Characteristics of China's Natural Rubber Futures Market Based on the MF-DFA Method

, 2016
Basing on the MF-DFA method, this paper analyzes the characteristics of China’s natural rubber futures market, which includes the fractal characteristics, effectiveness, long-term memory, market risk and so on.
ZHANG, Yan, HUO, Zaiqiang, LU, Xiaohua, LI, Yanan   +3 more
core   +1 more source

Numerical analysis of the morphological and phase changes in the TiN/Al₂O₃ coating under high current electron beam modification

Condensed Matter Physics, 2013
The modification of the surface structure of the hybrid coating TiN/Al2O3 with a low-energy high-current electron beam (NCEB) is performed. The surface roughness is considered as a function of beam current.
A.D. Pogrebnjak, V.N. Borisyuk, A.A. Bagdasaryan   +2 more
doaj   +1 more source

Assessing the driving process of meteorological and agricultural drought in the Yellow River Basin

Journal of Hydrology: Regional Studies
Study region: The Yellow River Basin. Study focus: This study examines six-month anomalies in precipitation (SPI), runoff (SRI), surface-layer soil moisture (SMI), and vegetation health (VHI), covering the period from 1990 to 2020. Multifractal detrended
Xiufen Gu, Yuqi Li, Sajad Jamshidi, Lailei Gu, HongGuang Sun, Dayong Wang   +5 more
doaj   +1 more source

The Analysis of Volatility for Non-Ferrous Metal Futures in Chinese Market Based on Multifractal Perspective

Mathematics
The goal of this paper is to study the behavior of non-ferrous metal futures’ volatilities in Chinese future market by applying a multifractal perspective. In particular, in order to obtain key indicators that describe the characterization of non-ferrous
Tao Yin, Shuang-Shuang Huang, Yiming Wang, George Xianzhi Yuan   +3 more
doaj   +1 more source