Geometry of obstacle marks at instream boulders—integration of laboratory investigations and field observations
Sign Up to like & getrecommendations! Published in 2021 at "Earth Surface Processes and Landforms"
DOI: 10.1002/esp.5055
Abstract: Obstacle marks are instream bedforms, typically composed of an upstream frontal scour hole and a downstream sediment accumulation in the vicinity of an obstacle. Local scouring at infrastructure (e.g. bridge piers) is a well‐studied phenomenon… read more here.
Keywords: obstacle; scour; obstacle marks; geometry ... See more keywords
Adaptive Saturated Obstacle Avoidance Trajectory Tracking Control for Euler–Lagrange Systems With Velocity Constraints
Sign Up to like & getrecommendations! Published in 2024 at "International Journal of Robust and Nonlinear Control"
DOI: 10.1002/rnc.7677
Abstract: This article pays attention to the obstacle avoidance trajectory tracking control problem for uncertain Euler–Lagrange (EL) systems subject to velocity constraints and input saturation. The existing obstacle avoidance results do not consider velocity constraints under… read more here.
Keywords: control; obstacle; velocity constraints; obstacle avoidance ... See more keywords
Predictive Obstacle Avoidance Algorithm for Under‐Actuated Unmanned Surface Vehicle Under Disturbances via Reinforcement Learning
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Field Robotics"
DOI: 10.1002/rob.22554
Abstract: Due to the growing complexity of diverse maritime tasks, underactuated unmanned surface vehicle (USV) has become a research hotspot. The rapid development of deep reinforcement learning (DRL) technology has brought forth a novel approach for… read more here.
Keywords: obstacle; surface vehicle; unmanned surface; reinforcement learning ... See more keywords
Cutaneous reflex modulation during obstacle avoidance under conditions of normal and degraded visual input
Sign Up to like & getrecommendations! Published in 2017 at "Experimental Brain Research"
DOI: 10.1007/s00221-017-4976-6
Abstract: The nervous system integrates visual input regarding obstacles with limb-based sensory feedback to allow an individual to safely negotiate the environment. This latter source can include cutaneous information from the foot, particularly in the event… read more here.
Keywords: visual input; degraded visual; input; obstacle ... See more keywords
Mind your step: learning to walk in complex environments
Sign Up to like & getrecommendations! Published in 2020 at "Experimental Brain Research"
DOI: 10.1007/s00221-020-05821-y
Abstract: In everyday contexts, children must respond to both self-related constraints (their own skills and abilities) and environmental constraints (external obstacles and goals). How do young children simultaneously accommodate these to support skilled and flexible behaviour?… read more here.
Keywords: foot placement; self related; obstacle; environmental constraints ... See more keywords
Trajectory priming through obstacle avoidance in motor imagery – does motor imagery comprise the spatial characteristics of movement?
Sign Up to like & getrecommendations! Published in 2024 at "Experimental Brain Research"
DOI: 10.1007/s00221-024-06951-3
Abstract: Motor imagery and execution often indicate a similar trend in the temporal characteristics of movements. This finding supports the notion of functional equivalence, whereby imagery and execution use a common neural representation. However, there is… read more here.
Keywords: motor imagery; execution; trial; imagery ... See more keywords
Flow structure of unconfined turbidity currents interacting with an obstacle
Sign Up to like & getrecommendations! Published in 2018 at "Environmental Fluid Mechanics"
DOI: 10.1007/s10652-018-9631-7
Abstract: Driven by a growing importance to engineered structures, investigating the flow characteristics of turbidity currents interacting with a basal obstruction has become popular over the last three decades. However, research has focused on confined studies… read more here.
Keywords: turbidity currents; obstacle; structure unconfined; turbidity ... See more keywords
LBM simulation of MHD nanofluid heat transfer in a square cavity with a cooled porous obstacle: effects of various temperature boundary conditions
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-019-09164-x
Abstract: Nanofluid natural convection inside a cavity with a porous square obstacle in the presence of magnetic field is simulated by lattice Boltzmann method. The porous obstacle is adopted by Sierpinski carpets fractal pattern, and three… read more here.
Keywords: temperature boundary; heat transfer; obstacle; boundary conditions ... See more keywords
A three-dimensional simulation of the effects of obstacle blockage ratio on the explosion wave in a tunnel
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-020-09777-7
Abstract: In this paper, a three-dimensional simulation has been performed to investigate the potential consequences of flammable vapor explosion in a tunnel with an obstacle, the obstacle with different area blockage ratios (10, 20, 30 and… read more here.
Keywords: tunnel; blockage ratio; obstacle; blockage ... See more keywords
Obstacle avoidance under relative localization uncertainty
Sign Up to like & getrecommendations! Published in 2018 at "Science China Information Sciences"
DOI: 10.1007/s11432-018-9760-9
Abstract: Dear editor, Collision avoidance is one of the classical topics in robotics research. Collision avoidance control is guided by implementing typical collision avoidance methods, such as potential field [1], dynamic programming [2], and geometrical calculation… read more here.
Keywords: relative localization; uncertainty; obstacle; collision avoidance ... See more keywords
Obstacle-negotiation performance on challenging terrain for a parallel leg-wheeled robot
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-019-1237-6
Abstract: High obstacle-negotiation performance of quadruped robots for the challenging terrain is strongly demanded in some fields, including payload delivery and disaster relief. In this study, a parallel leg-wheeled robot with the high mobility performance on… read more here.
Keywords: negotiation performance; obstacle negotiation; challenging terrain; obstacle ... See more keywords