Results 91 to 100 of about 5,052 (252)

Correlação em séries temporais de temperatura na região de Cascavel, Estado do Paraná = Correlation in temperature time series in Cascavel, Paraná State

Acta Scientiarum: Technology, 2007
Temperaturas podem ser correlacionadas por funções tipo leis de potência, e o termo de persistência pode ser caracterizado por uma função de autocorrelação C(t) de variações de temperatura, e t é o tempo entre as observações. Esta função decai como C(t) ~
Isabel Tamara Pedron
doaj  

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

Empirical properties of inter-cancellation durations in the Chinese stock market

Frontiers in Physics, 2014
Order cancellation process plays a crucial role in the dynamics of price formation in order-driven stock markets and is important in the construction and validation of computational finance models.
Gao-Feng eGu, Gao-Feng eGu, Xiong eXiong, Xiong eXiong, Wei eZhang, Wei eZhang, Yong-Jie eZhang, Yong-Jie eZhang, Wei-Xing eZhou, Wei-Xing eZhou, Wei-Xing eZhou   +10 more
doaj   +1 more source

Multifractal detrended fluctuation analysis of insole pressure sensor data to diagnose vestibular system disorders. [PDF]

Biomed Eng Lett, 2023
Günaydın B, İkizoğlu S.
europepmc   +1 more source

Species‐Specific Genetic Patterns in Sympatric Freshwater Turtles Challenge a Generalized Multi‐Species Conservation Approach

Animal Conservation, EarlyView.
We compared genetic diversity and spatial genetic structure in the snapping turtle (Chelydra serpentina; left panel), Blanding's turtle (Emydoidea blandingii; bottom right), and spotted turtle (Clemmys guttata; top right) sampled in areas of co‐occurrence across ~49,160 km2.
Christina M. Davy, Erica Newton, Niamh Wall, Robert W. Murphy   +3 more
wiley   +1 more source

Measuring the time‐varying market efficiency in the prewar and wartime Japanese stock market, 1924–1943

Asia‐Pacific Economic History Review, Volume 65, Issue 1, Page 131-159, March 2025.
Abstract This study examines the adaptive market hypothesis in the prewar and wartime Japanese stock market using a new market capitalization‐weighted price index. First, we find that the degree of market efficiency varies over time and with major historical events. This implies that the hypothesis is supported in this market.
Kenichi Hirayama, Akihiko Noda
wiley   +1 more source

基于MF-DFA和SVM的齿轮箱故障诊断

Jixie chuandong, 2014
The fault signal of the gearbox is the complex signal of the non-stationary and nonlinear characteristics,by using the multifractal detrended fluctuation analysis（MF-DFA）and the support vector machine（SVM）to diagnose the fault of the gearbox.The ...
刘春林, 潘宏侠, 史斐娜, 蒋红军   +3 more
doaj  

Generating Synthetic Data Using 2D Multifractal Detrended Fluctuation Analysis Generative Adversarial Networks

IEEE Access
A novel 2-dimensional Multifractal Detrended Fluctuation Analysis (2D-MFDFA) as a discriminator for Generative Adversarial Networks (GAN) is presented in this work. The proposed approach demonstrates improved generated data quality at early iterations on
Charudatta Gurudas Korde, K. G. Shreeharsha, R. K. Siddharth, M. H. Vasantha, Y. B. Nithin Kumar   +4 more
doaj   +1 more source

Associations between heart rate asymmetry expression and asymmetric detrended fluctuation analysis results. [PDF]

Med Biol Eng Comput, 2022
Piskorski J, Kośmider M, Mieszkowski D, Żurek S, Biczuk B, Jurga S, Krauze T, Wykrętowicz A, Guzik P.   +8 more
europepmc   +1 more source

Phase coupling between eye and brain pulsations is bidirectional and modulated by the parasympathetic system – An fMREye study

Acta Ophthalmologica, EarlyView.
Abstract Purpose Physiological pulsations driven by cardiac, respiratory, and vasomotor activity are essential for solute transport within perivascular and perineural cerebrospinal fluid (CSF) pathways that support brain and eye clearance systems. Previous studies have shown that parasympathetic blockade significantly reduces ocular pulsation power and
Ebrahimi Seyed‐Mohsen, Väyrynen Tommi, Huotari Niko, Saarela Ville, Honkamo Marja, Helakari Heta, Järvelä Matti, Korhonen Vesa, Raitamaa Lauri, Kiviniemi Vesa   +9 more
wiley   +1 more source