Results 61 to 70 of about 11,601 (226)

Multifractal Analysis of Pore Structure and Evaluation of Deep-Buried Cambrian Dolomite Reservoir with Image Processing: A Case from Tarim Basin, NW China

open access: yesGeofluids, 2020
Reservoir pore space assessment is of great significance for petroleum exploration and production. However, it is difficult to describe the pore characteristics of deep-buried dolomite reservoirs with the traditional linear method because these rocks ...
Xiaojun Zhang   +3 more
doaj   +1 more source

Interplay Between Green Investment and Market Price Premia in Global Shipping

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT Existing research emphasises that the driver of green investment is its future profitability. This paper shows that other investors' decisions also influence green investment. We take the example of scrubber installation in shipping, which is optional by regulation but has an established market for trading its underlying asset.
Yao Shi   +4 more
wiley   +1 more source

Multifractal Cross Correlation Analysis of Agro-Meteorological Datasets (Including Reference Evapotranspiration) of California, United States

open access: yes, 2020
The multifractal properties of six acknowledged agro-meteorological parameters, such as reference evapotranspiration (ET0), wind speed (U), incoming solar radiation (SR), air temperature (T), air pressure (P), and relative air humidity (RH) of five ...
Sankaran, A.   +15 more
core   +1 more source

Multifractal Characteristics of Grain Size Distributions in Braided Delta-Front: A Case of Paleogene Enping Formation in Huilu Low Uplift, Pearl River Mouth Basin, South China Sea

open access: yesFractal and Fractional
Multifractal analysis has been used in the exploration of soil grain size distributions (GSDs) in environmental and agricultural research. However, multifractal studies regarding the GSDs of sediments in braided delta-front are currently scarce.
Rui Yuan, Zijin Yan, Rui Zhu, Chao Wang
doaj   +1 more source

Wavelet Leaders Based Vibration Signals Multifractal Features of Plunger Pump in Truck Crane

open access: yesAdvances in Mechanical Engineering, 2013
Vibration signal of plunger pump in truck crane is a typical nonlinear, nonstationary signal, and the multifractal features are a powerful tool for depicting the geometry features of such signals.
Wenliao Du   +3 more
doaj   +1 more source

Multivariate Multifractal Detrending Moving Average Analysis of Air Pollutants

open access: yesMathematics, 2021
One of the most challenging endeavors of contemporary research is to describe and analyze the dynamic behavior of time series arising from real-world systems.
Milena Kojić   +3 more
doaj   +1 more source

Multifractal analysis of model fractal and multifractal signals

open access: yesRadiotekhnika, 2022
One of the topical directions of modern fractal radio physics is the multifractal analysis of signals and processes of various origins. A set of deterministic and stochastic models of monofractal and multifractal signals and processes in the time domain is proposed.
O.V. Lazorenko   +2 more
openaire   +1 more source

Risk Transmission and Co‐Movements Between Financial Markets and Commodity Markets in the COVID‐19 Period

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This study examines risk transmission and co‐movements between financial markets (G7 countries and China) and commodity markets (gold and oil) during the COVID‐19 crisis. Daily closing prices for major equity indices (CAC40, CSI300, DAX30, FTSE100, MIB, NIKKEI, TSX and S&P500) and futures prices for gold, brent and WTI were analysed using DCC ...
V. Moutinho   +3 more
wiley   +1 more source

Multifractal analysis of malaria cases in India in a global warming scenario

open access: yesJournal of Water and Climate Change, 2023
An effort is made to evaluate the multifractal properties of malaria cases in India from 1980 to 2014. The possible changes in these properties in a global warming scenario (during 2015–2049) are also quantified.
Suneet Dwivedi, Shweta Chaturvedi
doaj   +1 more source

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