Results 71 to 80 of about 41,857 (323)

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

open access: yesAdvanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello   +7 more
wiley   +1 more source

Coordinated Control of Active Suspension and DYC for Four-Wheel Independent Drive Electric Vehicles Based on Stability

open access: yesApplied Sciences, 2022
Active suspension control and direct yaw-moment control (DYC) are widely used in the vehicle control field. To solve the coupling between those two controllers, a coordinated control of active suspension and DYC is proposed to further improve the vehicle
Jianjun Hu   +4 more
doaj   +1 more source

Unanticipated Interfacial Redox Reaction in the NiOx Transport Layer of Perovskite Light‐Emitting Diodes

open access: yesAdvanced Science, EarlyView.
This study presents the unanticipated interfacial redox reaction between NiOx and perovskite, which is characterized by XPS. This redox reaction is one of the primary reasons for the bias‐induced instability of PeLEDs and is particularly suppressed by simply applying an interface layer between NiOx and perovskite.
Thi‐Hoai Do   +4 more
wiley   +1 more source

Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion

open access: yesAdvanced Science, EarlyView.
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi   +6 more
wiley   +1 more source

Attitude control and damping system for spacecraft Patent [PDF]

open access: yes, 1967
Utilization of momentum devices for forming attitude control and damping system for ...
Kurzhals, P. R., Will, R. W.
core   +1 more source

Rollover Preventive Force Synthesis at Active Suspensions in a Vehicle Performing a Severe Maneuver with Wheels Lifted off

open access: yes, 2013
Among the intelligent safety technologies for road vehicles, active suspensions controlled by embedded computing elements for preventing rollover have received a lot of attention.
Parida, Nigam Chandra   +2 more
core   +1 more source

Enhanced Active Safety Through Integrated Autonomous Drifting and Direct Yaw Moment Control via Nonlinear Model Predictive Control

open access: yesIEEE Transactions on Intelligent Vehicles
The introduction of active safety systems and advanced driver assistance systems has enhanced the control authority over the vehicle dynamics through specialized actuators, enabling, for instance, independent wheel torque control.
Pietro Stano   +6 more
semanticscholar   +1 more source

A Microfiber‐Reinforced Janus Hydrogel E‐Skin With Recyclable Feature for Multimodal Sensing and Gender‐Specific Physiological Monitoring

open access: yesAdvanced Science, EarlyView.
Hydrogel‐based wearable electronics hold great promise for physiological monitoring in privacy‐sensitive regions. In this study, a polyurethane (PU) microfiber‐reinforced gelatin hydrogel e‐skin is developed, boasting multiple advantages such as ultra‐thinness, high toughness, and long‐term skin conformability.
Yarong Ding   +11 more
wiley   +1 more source

Trajectory generation for road vehicle obstacle avoidance using convex optimization [PDF]

open access: yes, 2010
This paper presents a method for trajectory generation using convex optimization to find a feasible, obstacle-free path for a road vehicle. Consideration of vehicle rotation is shown to be necessary if the trajectory is to avoid obstacles specified in a ...
Betts J. T.   +6 more
core   +1 more source

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