Results 81 to 90 of about 23,173,603 (235)

Wavelet multifractal detrended fluctuation analysis of encryption and decryption matrices [PDF]

, 2013
"In this paper, we study in detail the multifractal features of the main matrices of an encryption system based on a rule-90 cellular automaton. For this purpose we consider the scaling method known as the wavelet transform multifractal detrended ...
Vargas Olmos, Cecilia, Mejía Carlos, Marcela, Rosu Barbus, Haret-Codratian, José Murguía, Ramírez Torres, Marco Tulio   +4 more
core   +1 more source

The evaluation of boundary‐layer turbulence in high‐resolution numerical weather prediction simulations using Doppler lidar

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A new method compares both kilometer and sub‐kilometre weather model simulations with Doppler lidar observations to assess the representation of boundary‐layer turbulence. While bulk boundary‐layer properties are well represented, vertical velocity variance is strongly underestimated in both simulations.
Natalie J. Harvey, Helen F. Dacre, Kirsty E. Hanley, Humphrey W. Lean, Christopher J. Walden, Michael Baidu, Steven Boeing, Andrew N. Ross   +7 more
wiley   +1 more source

Integrated assessment of meteorological drought impacts on terrestrial water storage and vegetation dynamics in East Africa

River, EarlyView.
Abstract Water is essential for life, and effective hydrological management is crucial for economic stability and quality of life. Poor water resource governance can lead to scarcity, displacement, or even fatal consequences. Hydrological conditions in East Africa are influenced by drivers such as demographic expansion, industrialization, droughts, and
Mekuanint Eresho Wollebo, Yohannes Mehari Andiye, Tulu Besha Bedada   +2 more
wiley   +1 more source

Keywords: Detrended fluctuation analysis, Trends, Embedding, Singular Value Decomposition.

, 2008
the effect of trends on detrended fluctuation analysis of long ...
Rajesh G. Kavasseri, Radhakrishnan Nagarajan   +1 more
core  

The fluctuation function of the detrended fluctuation analysis - investigation on the AR(1) process

, 2015
We derive an analytical expression for the fluctuation function of the first order autoregressive process AR(1) by means of the detrended fluctuation analysis (DFA). This process is short-range correlated and therefore the fluctuation
Kantz, H., Holger Kantz, Hoell, M., Marc Höll   +3 more
core   +1 more source

Reproductive success under constraints: Does increased maternal activity during lactation offset poor habitat and individual quality in an income breeder?

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Human‐induced environmental modifications may alter forage access and, hence, how animals manage energy trade‐offs during critical periods. Reproduction, especially lactation, is the most energetically costly process for female mammals.
L. Monica Trondrud, Jean‐Michel Gaillard, Nadège C. Bonnot, Nicolas Morellet, Yannick Chaval, Arnaud Bonnet, Bruno Lourtet, A. J. Mark Hewison   +7 more
wiley   +1 more source

Nonlinear 24‐Hour Blood Pressure Dynamics in Cognitive Impairment and Dementia

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background In cognitive impairment and dementia, where biological functions are disrupted, nonlinear dynamics may reflect dysregulation of blood pressure (BP) that might not be captured by linear variability. We investigated whether nonlinear dynamics of
Jesus D. Melgarejo, Vincent P. Diego, Fernando Rodríguez‐Artalejo, Masahiro Kikuya, Michihiro Satoh, Hirohito Metoki, Kei Asayama, Bodil Weidung, Lars Lind, Silvia Mejia‐Arango, Luis J. Mena, Joseph H. Lee, Joseph D. Terwilliger, John Blangero, Michael C. Mahaney, Sokratis Charisis, Claudia L. Satizabal, Jose E. Cavazos, Ramachandran S. Vasan, Jose Gutierrez, Stephen P. Juraschek, José R. Banegas, Takayoshi Ohkubo, Sudha Seshadri, Gladys E. Maestre   +24 more
doaj   +1 more source

MULTIFRACTAL DETRENDED FLUCTUATION ANALYSIS BASED ON PSEUDO-BILINEAR FRACTAL INTERPOLATION FUNCTIONS ON METALLIC GLASSES

, 2018
Based on the multifractal detrended cross-correlation analysis, which is the most effective way to detect long-range cross-correlation of time series, in this paper, we present a new method called multifractal detrended fluctuation analysis based on ...
YUE ZONG, HUOJUN RUAN, XIAODONG WANG, QINGGE KONG, JIANZHONG JIANG, QING YU, MEIFENG DAI   +6 more
core   +1 more source

Convergence of Energy Intensity Across ASEAN‐5 Countries: A Wavelet‐Based Perspective

Natural Resources Forum, EarlyView.
ABSTRACT The convergence hypothesis, which emphasizes the attainment of income equality among nations, has recently gained prominence in energy studies due to its pivotal role in addressing the pressing challenges at the intersection of economic development and energy sustainability.
Havanur Ergün Tatar, Gökhan Konat, Ahmet Koncak, Mehmet Aydin   +3 more
wiley   +1 more source

Radio Frequency Fingerprinting for WiFi Authentication Based on Detrended Fluctuation Analysis

IET Information Security
Traditional physical-layer authentication (PLA) approaches primarily rely on a limited set of hardware features, which restricts their robustness and accuracy in dynamic wireless environments.
Shuguang Wang, Songyan Li, Tingjia Liu, Shuangrui Zhao, Jiandong Wang, Yulong Shen   +5 more
doaj   +1 more source