Results 11 to 20 of about 9,091,153 (375)

Dynamic ecological system analysis

open access: yesHeliyon, 2019
This article develops a new mathematical method for holistic analysis of nonlinear dynamic compartmental systems in the context of ecology. The method is based on the novel dynamic system and subsystem partitioning methodologies through which ...
Huseyin Coskun
doaj   +3 more sources

Spectral proper orthogonal decomposition and its relationship to dynamic mode decomposition and resolvent analysis [PDF]

open access: yesJournal of Fluid Mechanics, 2017
We consider the frequency domain form of proper orthogonal decomposition (POD), called spectral proper orthogonal decomposition (SPOD). Spectral POD is derived from a space–time POD problem for statistically stationary flows and leads to modes that each ...
A. Towne, O. Schmidt, T. Colonius
semanticscholar   +5 more sources

Analysis on the dynamic characteristics of debris flow in Jiangjia Ravine, China [PDF]

open access: yesE3S Web of Conferences, 2023
Dynamic characteristics determine the mobility of debris flow and are also key to hazard risk assessment. However, the dynamic process of natural debris flow is very complex.
Song Dongri
doaj   +1 more source

Dynamic flows with adaptive route choice [PDF]

open access: yesMathematical programming, 2018
We study dynamic network flows and introduce a notion of instantaneous dynamic equilibrium (IDE) requiring that for any positive inflow into an edge, this edge must lie on a currently shortest path towards the respective sink. We measure current shortest
Lukas Graf, T. Harks
semanticscholar   +1 more source

Study on the Vehicle Linear Dynamic Interval in a Traffic Flow

open access: yesCommunications, 2021
The transportation industry of a modern city involves the effective systems for the road traffic management. To manage any object is impossible without understanding its specifics.
Oleg Fyodorovich Danilov   +3 more
doaj   +1 more source

On the Flow Dynamics of Polymer Greases

open access: yesLubricants, 2022
In this paper, the flow dynamics of polymer greases was investigated using micro-particle image velocimetry. Polymer greases have a different thickener structure, compared to widely used lithium-based greases, and they have the well-known ability to release oil.
Josep Farré-Lladós   +4 more
openaire   +3 more sources

Common Representation of Information Flows for Dynamic Coalitions [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2010
We propose a formal foundation for reasoning about access control policies within a Dynamic Coalition, defining an abstraction over existing access control models and providing mechanisms for translation of those models into information-flow domain.
Igor Mozolevsky, John Fitzgerald
doaj   +1 more source

A Deterministic Algorithm for Balanced Cut with Applications to Dynamic Connectivity, Flows, and Beyond [PDF]

open access: yesIEEE Annual Symposium on Foundations of Computer Science, 2019
We consider the classical Minimum Balanced Cut problem: given a graph $G$, compute a partition of its vertices into two subsets of roughly equal volume, while minimizing the number of edges connecting the subsets.
Julia Chuzhoy   +5 more
semanticscholar   +1 more source

Dynamic Spatio-Temporal Graph-Based CNNs for Traffic Flow Prediction

open access: yesIEEE Access, 2020
Forecasting future traffic flows from previous ones is a challenging problem because of their complex and dynamic nature of spatio-temporal structures.
Ken Chen   +10 more
doaj   +1 more source

Population dynamics in compressible flows [PDF]

open access: yesThe European Physical Journal Special Topics, 2012
Organisms often grow, migrate and compete in liquid environments, as well as on solid surfaces. However, relatively little is known about what happens when competing species are mixed and compressed by fluid turbulence. In these lectures we review our recent work on population dynamics and population genetics in compressible velocity fields of one and ...
R Benzi   +5 more
openaire   +5 more sources

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