Results 61 to 70 of about 685,137 (232)

Risk Prediction of Three Different Subtypes of Highly Pathogenic Avian Influenza Outbreaks in Poultry Farms: Based on Spatial Characteristics of Infected Premises in South Korea

open access: yesFrontiers in Veterinary Science, 2022
From 2003 to 2017, highly pathogenic avian influenza (HPAI) epidemics, particularly H5N1, H5N8, and H5N6 infections in poultry farms, increased in South Korea.
Dae-sung Yoo   +7 more
doaj   +1 more source

Controlling Propagation of epidemics via mean-field control [PDF]

open access: yesarXiv, 2020
The coronavirus disease 2019 (COVID-19) pandemic is changing and impacting lives on a global scale. In this paper, we introduce a mean-field game model in controlling the propagation of epidemics on a spatial domain. The control variable, the spatial velocity, is first introduced for the classical disease models, such as the SIR model.
arxiv  

Metacommunity composition of web-spiders in a fragmented neotropical forest: relative importance of environmental and spatial effects. [PDF]

open access: yesPLoS ONE, 2012
The distribution of beta diversity is shaped by factors linked to environmental and spatial control. The relative importance of both processes in structuring spider metacommunities has not yet been investigated in the Atlantic Forest.
Ronei Baldissera   +2 more
doaj   +1 more source

Spatial variability and directional shifts in postural control in Parkinson’s disease

open access: yesClinical Parkinsonism & Related Disorders
Individuals with Parkinson's disease exhibit tremors, rigidity, and bradykinesia, disrupting normal movement variability and resulting in postural instability. This comprehensive study aimed to investigate the link between the temporal structure of postural sway variability and Parkinsonism by analyzing multiple datasets from young and older adults ...
Damian G. Kelty-Stephen   +3 more
openaire   +3 more sources

Recurrent neural network based optimal integral sliding mode tracking control for four‐wheel independently driven robots

open access: yesIET Control Theory & Applications, 2021
This paper investigates robust path tracking issue of the four‐wheel independent driven robot (FWIDR) under time‐varying system uncertainties and unavoidable external disturbances.
Xiaolong Zhang   +5 more
doaj   +1 more source

Non‐linear adaptive tracking control for quadrotor aerial robots under uncertain dynamics

open access: yesIET Control Theory & Applications, 2021
This paper presents the design, analysis, and implementation of an adaptive backstepping controller for underactuated quadrotors to track time‐varying trajectories with parameter uncertainties.
Yen‐Chen Liu, Tsung‐Wei Ou
doaj   +1 more source

Urban Intersection Signal Control Based on Time-Space Resource Scheduling

open access: yesIEEE Access, 2021
This paper improves the level of urban traffic control by creasing the dimension of control variables. It focuses on roads rather than vehicles. A new space-time resource scheduling model and a bi-level optimization control method for urban intersections
Lili Zhang   +3 more
doaj   +1 more source

Multi‐UAV cooperative trajectory optimisation for a multi‐hop UAV relaying network

open access: yesElectronics Letters, 2021
In this letter, an unmanned aerial vehicle (UAV) assisted data collection scenario is considered in the Internet of Things (IoT), where a multi‐hop UAV relaying network is constructed for real‐time data transmission.
Cuntao Liu, Yan Guo, Ning Li, Bin Zhou
doaj   +1 more source

Optimal convergence rate for homogenization of convex Hamilton-Jacobi equations in the periodic spatial-temporal environment [PDF]

open access: yesarXiv, 2022
We study the optimal convergence rate for homogenization problem of convex Hamilton-Jacobi equations when the Hamitonian is periodic with respect to spatial and time variables, and notably time-dependent. We prove a result similar to that of [8], which means the optimal convergence rate is also $O(\varepsilon)$.
arxiv  

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