Results 181 to 190 of about 99,827 (273)

Segment level safety analysis using lane-changing behavior and driving volatility features from connected vehicle trajectories. [PDF]

Sci Rep
Han L, Abdel-Aty M.
europepmc   +1 more source

Large Deformation Pile‐soil Interaction Under Lateral Vehicle Impact Using Hybrid SPH+FEM and EFG+FEM Models

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study presents large deformation computational methods to simulate lateral vehicular impacts on steel piles in granular soil. Soil‐mounted longitudinal barrier systems rely on energy dissipation in both the piles and the surrounding soil to safely redirect errant vehicles, so dynamic pile‐soil interaction is important for design ...
Tewodros Y. Yosef, Chen Fang, Seunghee Kim, Ronald K. Faller, Qusai A. Alomari, Mojtaba Atash Bahar, Gnyarienn S. Kumar   +6 more
wiley   +1 more source

Enhancing traffic safety analysis with digital twin technology: integrating vehicle dynamics and environmental factors into microscopic traffic simulation. [PDF]

Sci Rep
Xu G, Chen J, Wang Z, Zhou A, Schrader M, Bittle J, Shao Y.   +6 more
europepmc   +1 more source

HyLPD Digital Twin Control for UAV Stability in High‐Wind Conditions

Optimal Control Applications and Methods, EarlyView.
This work introduces a novel HyLPD, a hybrid control framework combining Linear Quadratic Regulator (LQR) for baseline stability and Deep Deterministic Policy Gradient (DDPG) for adaptive compensation, tailored for UAVs under high‐wind conditions.
Cara Rose, Robert McMurray, Muhammad Usman Hadi   +2 more
wiley   +1 more source

Investigating factors influencing fatalities and injuries in animal-vehicle crashes using a random parameters logit model and ensemble machine learning approaches. [PDF]

PLoS One
Zawad MN, Almannaa M, Alkahtani KF.
europepmc   +1 more source

Not just ‘super‐predators': human behaviour shapes wildlife behavioural responses across avoidance, tolerance and attraction

Oikos, EarlyView.
Humans are thought to have a disproportionately negative impact on wildlife and are viewed by some as the ultimate ‘super predator'. This view implies that wild animals perceive humans primarily as predators. However, a growing body of evidence shows that wildlife can have remarkable tolerance for, or even attraction to, humans.
Friederike Zenth, Daniel T. Blumstein, Luca Corlatti, Mengxi Kou, Sebastian Schwegmann, Farina Sooth, Ilse Storch, Manisha Bhardwaj   +7 more
wiley   +1 more source

Assessing and predicting crash dynamics with and without road safety measures on the Dejen to Bahir Dar highway in Ethiopia. [PDF]

Sci Rep
Geremew G.
europepmc   +1 more source

Distilling food web dynamics: top–down and bottom–up drivers of extinction and trophic cascades

Oikos, EarlyView.
Quantifying population dynamics is a fundamental challenge in ecology and evolutionary biology, particularly for species that are cryptic, microscopic, or extinct. Traditional approaches rely on continuous representations of population size, but in many cases, the precise number of individuals is unknowable.
Justin D. Yeakel
wiley   +1 more source

Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains

Oikos, EarlyView.
Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber, Nicolas Loeuille, Isabelle Gounand   +2 more
wiley   +1 more source

An interpretable dynamic ensemble selection multiclass imbalance approach with ensemble imbalance learning for predicting road crash injury severity. [PDF]

Sci Rep
Aziz K, Chen F, Ahmad M, Khan MS, Sabri Sabri MM, Almujibah H.   +5 more
europepmc   +1 more source