Results 101 to 110 of about 225,313 (340)

Resource limitation and competition shape reproductive allocation and synchrony

Oikos, EarlyView.
The dynamics of reproductive allocation (RA) in herbaceous plant communities, particularly in response to varying environmental conditions such as drought stress and competitive interactions, remain underexplored. This study aims to fill this gap by hypothesising that both belowground resource limitation and the presence of dominant species ...
Jan Douda, Jana Doudová, Alena Havrdová   +2 more
wiley   +1 more source

Software to Support Remote Sensing of River Discharge Based on Critical Flow Theory

River Research and Applications, EarlyView.
ABSTRACT Water resource management requires accurate observations of streamflow but standard field methods for measuring river discharge (Q$$ Q $$) can be costly and hazardous for equipment and personnel. Remote sensing has become a viable alternative, but many image‐based techniques require field data for calibration, and depth and velocity can seldom
Carl J. Legleiter, Inhyeok Bae
wiley   +1 more source

Multifractal Detrended Fluctuation Analysis of Congestive Heart Failure Disease Based on Constructed Heartbeat Sequence

IEEE Access, 2020
Heart rate variability (HRV) can be used as a common detection method for congestive heart failure (CHF). Existing researches regarding HRV, including both linear indicators and nonlinear characteristics, are mostly based on the $RR$ intervals of the ...
Shan Li
semanticscholar   +1 more source

Analysis of the structural complexity of Crab Nebula observed at radio frequency using a multifractal approach

Journal of Physics: Complexity
The Crab Nebula is an astrophysical system that exhibits complex morphological patterns at different observing frequencies. We carry out a systematic investigation of the structural complexity of the nebula using publicly available imaging data at radio ...
Athokpam Langlen Chanu, Pravabati Chingangbam, Fazlu Rahman, R K Brojen Singh, Preeti Kharb   +4 more
doaj   +1 more source

Multifractal analysis of the fracture surfaces of foamed polypropylene/polyethylene blends

, 2008
The two-dimensional multifractal detrended fluctuation analysis is applied to reveal the multifractal properties of the fracture surfaces of foamed polypropylene/polyethylene blends at different temperatures.
Alvarez-Ramirez, Amitrano, Argoul, Babadagli, Betekhtin, Bouchaud, Celli, Chandra, Chen, Chhabra, Chuang Liu, Collias, Dougan, Eftekhari, Gu, Halsey, Hilgenfeldt, Issa, Kantelhardt, Krause, Krause, Kraynik, Kumar, Kuramoto, Lapique, Lee, Leung, Leung, Ling Zhao, Lòpez, Mandelbrot, Mandelbrot, Mandelbrot, Mecholsky, Moktadir, Mordant, Naguib, Naguib, Nalawade, Niu, Park, Patrick, Paun, Raoufi, Schmittbuhl, Shek, Suh, Sun, Tao Liu, Thompson, Tomasko, Wang, Wang, Wei-Kang Yuan, Wei-Xing Zhou, Wendt, Xie, Xiu-Lei Jiang, Xu, Yan, Yu, Zhai, Zhou, Zhou   +63 more
core   +1 more source

Climate stability drives multidimensional nestedness of amphibian assemblages in a Chinese sky island system

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang, Shihang Xu, Chuanwu Chen, Chenxiu Zhan, Baowei Zhang, Yanping Wang   +5 more
wiley   +1 more source

Detection of Pipeline Leaks Using Fractal Analysis of Acoustic Signals

Fractal and Fractional
In this paper, the possibility of using monofractal and multifractal analysis of acoustic signals of pipelines to detect leaks is considered. An experimental stand has been created to study the fractal characteristics of acoustic signals of pipelines ...
Ayrat Zagretdinov, Shamil Ziganshin, Eugenia Izmailova, Yuri Vankov, Ilya Klyukin, Roman Alexandrov   +5 more
doaj   +1 more source

Are Pound and Euro the Same Currency? - Updated [PDF]

Based on long range dependence, some analysts claim that the exchange rate time series of the pound sterling and of an artificially extended euro have been locked together for years despite daily changes [1, 9].
Da Silva, Sergio, Figueiredo, Annibal, Gleria, Iram, Matsushita, Raul   +3 more
core   +1 more source

The value of regeneration for insect fauna associated with leaf litter in the Brazilian savanna: A comparative study of biomass and trophic structure

Annals of Applied Biology, EarlyView.
This study demonstrates the ecological value of natural regeneration in the Brazilian Cerrado by analysing the biomass, richness and trophic structure of leaf litter insects across pasture (P), regenerating (R) and native (N) areas. We found that R areas supported insect communities more similar to N habitats than to Ps, with higher richness, greater ...
Thalita Moraes Miranda Ribeiro de Souza, Rodrigo Aranda   +1 more
wiley   +1 more source

Fintech Market efficiency: A Multifractal Detrended Fluctuation Analysis

Finance Research Letters, 2023
Keshab Shrestha, Babak Naysary, Sheena Sara Suresh Philip   +2 more
semanticscholar   +1 more source