Results 1 to 10 of about 510,138 (207)

Improved susceptible–infectious–susceptible epidemic equations based on uncertainties and autocorrelation functions [PDF]

open access: yesRoyal Society Open Science, 2020
Compartmental equations are primary tools in the study of disease spreading processes. They provide accurate predictions for large populations but poor results whenever the integer nature of the number of agents is evident.
Gilberto M. Nakamura   +2 more
doaj   +1 more source

Financial, business and trust cycles: the issues of synchronization [PDF]

open access: yesZbornik radova Ekonomskog fakulteta u Rijeci : časopis za ekonomsku teoriju i praksu, 2019
Starting from 1920, the growing body of research has been focused on the role of psychological factors in cycle theories. Mainstream macroeconomic models are insufficient for exploring interaction among economic agents, financial institutions, and the ...
Yuriy Bilan   +3 more
doaj   +1 more source

Voltage Fluctuations and Flicker in Prosumer PV Installation

open access: yesEnergies, 2022
In this paper, we present problems connected with voltage fluctuations in low-voltage networks caused by small PV sources installed in an LV network. For the purpose of analysis, high-resolution data gathered at the output of real PV sources for 4 months
Krzysztof Łowczowski, Zbigniew Nadolny
doaj   +1 more source

Phytoplankton Response to Different Light Colors and Fluctuation Frequencies

open access: yesFrontiers in Marine Science, 2022
The natural environment of phytoplankton is variable in manifold ways. Light, as essential resource for photosynthetic phytoplankton, fluctuates in its intensity (quantity) as well as spectrum (quality) over great temporal scales in aquatic ecosystems ...
Sebastian Neun   +3 more
doaj   +1 more source

Dynamical fluctuations of a tracer coupled to active and passive particles

open access: yesJournal of Physics: Complexity, 2023
We study the induced dynamics of an inertial tracer particle elastically coupled to passive or active Brownian particles. We integrate out the environment degrees of freedom to obtain the exact effective equation of the tracer—a generalized Langevin ...
Ion Santra
doaj   +1 more source

Response Theory: A Trajectory-Based Approach

open access: yesFrontiers in Physics, 2020
We collect recent results on deriving useful response relations also for non-equilibrium systems. The approach is based on dynamical ensembles, determined by an action on trajectory space.
Christian Maes
doaj   +1 more source

Effective Management System for Solar PV Using Real-Time Data with Hybrid Energy Storage System

open access: yesApplied Sciences, 2020
This paper proposes an effective management system for stand-alone solar photovoltaic (PV) using real-time data with Hybrid Energy Storage System (HESS).
G. V. Brahmendra Kumar   +4 more
doaj   +1 more source

Gorgan Bay environmental consequences due to the Caspian Sea rapid water level change [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2019
The rapid Caspian Sea level fluctuations have caused unstable conditions for coastal areas during the 20st and 21st centuries, and have led to significant losses for economical and social infrastructure. The main objective of this study was to assess the
H Khoshravan   +3 more
doaj   +1 more source

Entropy of Charge Inversion in DNA including One-Loop Fluctuations

open access: yesEntropy, 2023
The entropy and charge distributions have been calculated for a simple model of polyelectrolytes attached to the surface of DNA using a field-theoretic method that includes fluctuations to the lowest one-loop order beyond mean-field theory.
Matthew D. Sievert   +2 more
doaj   +1 more source

What Is Mature and What Is Still Emerging in the Cryptocurrency Market?

open access: yesEntropy, 2023
In relation to the traditional financial markets, the cryptocurrency market is a recent invention and the trading dynamics of all its components are readily recorded and stored.
Stanisław Drożdż   +2 more
doaj   +1 more source

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