Results 101 to 110 of about 20,055 (271)

Predictability of Air Pollutants Based on Detrended Fluctuation Analysis: Ekibastuz Сoal-Mining Center in Northeastern Kazakhstan

open access: yesUrban Science
Environmental comfort and air pollution are among the most important indicators for assessing the population’s quality of life in urban agglomerations. This study aims to explore long-term memory in air pollution time series by analyzing the dynamics of ...
Oleksandr Kuchanskyi   +5 more
doaj   +1 more source

A Novel Method for Control Performance Assessment with Fractional Order Signal Processing and Its Application to Semiconductor Manufacturing

open access: yesAlgorithms, 2018
The significant task for control performance assessment (CPA) is to review and evaluate the performance of the control system. The control system in the semiconductor industry exhibits a complex dynamic behavior, which is hard to analyze.
Kai Liu   +3 more
doaj   +1 more source

Interpreting Patterns of X Chromosomal Relative to Autosomal Diversity in Aye‐Ayes (Daubentonia madagascariensis)

open access: yesAmerican Journal of Primatology, Volume 87, Issue 12, December 2025.
We here newly identify the pseudoautosomal region (PAR) in the current reference assembly of aye‐ayes, generate mutation and recombination rate maps across the X chromosome, find evidence supporting roughly equal male:female sex ratios, and investigate X‐specific demographic and selective dynamics.
John W. Terbot II   +7 more
wiley   +1 more source

Physicochemical Characterization of Solid Catalysts: Morphological, Structural, Textural, Reducibility, and Acid‐Base Insights

open access: yesChemCatChem, Volume 17, Issue 23, December 8, 2025.
This review provides a practical guide for the characterization of solid catalysts, emphasizing key techniques such as SEM, TEM, XRD, Raman spectroscopy, and gas physisorption. It also covers reducibility and acid‐based analyses through TPR, TPD, and FTIR.
Luis A. Gallego‐Villada   +5 more
wiley   +1 more source

Martingales, the efficient market hypothesis, and spurious stylized facts [PDF]

open access: yes
The condition for stationary increments, not scaling, detemines long time pair autocorrelations. An incorrect assumption of stationary increments generates spurious stylized facts, fat tails and a Hurst exponent Hs=1/2, when the increments are ...
Bassler, Kevin E.   +2 more
core   +1 more source

Possibility between earthquake and explosion seismogram differentiation by discrete stochastic non-Markov processes and local Hurst exponent analysis

open access: yes, 2001
The basic purpose of the paper is to draw the attention of researchers to new possibilities of differentiation of similar signals having different nature.
A. Johansen   +26 more
core   +1 more source

Cotton Yield Prediction Model Based on Hyperspectral Feature Fusion and Machine Learning

open access: yesModern Agriculture, Volume 3, Issue 2, December 2025.
This study integrates hyperspectral feature fusion with machine learning to advance cotton yield prediction. The approach adapts financial multifractal analysis (MF‐DFA) to agriculture by fusing fractal canopy features with vegetation indices for enhanced modelling. Results demonstrate that combining VI and fractal parameters during the flower and boll
Liang Li   +4 more
wiley   +1 more source

Evaluation of genome similarities using a wavelet-domain approach

open access: yesRevista da Sociedade Brasileira de Medicina Tropical
INTRODUCTION: Tuberculosis is listed among the top 10 causes of deaths worldwide. The resistant strains causing this disease have been considered to be responsible for public health emergencies and health security threats.
Leila Maria Ferreira   +2 more
doaj   +1 more source

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