Results 241 to 250 of about 113,864 (320)

Monocular visual servo control of a quadcopter for crossing windows, doors, and corridors

Asian Journal of Control, EarlyView.
Abstract This paper proposes a sequential visual servo control scheme for quadcopters, where the main goal is to drive a quadcopter to a desired pose while crossing windows, doors, or corridors using only visual feedback. This control scheme is composed of two stages that act in sequence: the approaching and pose regulation phases.
Carlos A. Toro‐Arcila, Hector M. Becerra, Gustavo Arechavaleta   +2 more
wiley   +1 more source

Adaptive mixing formation control of multiquadrotor unmanned aerial vehicle systems

Asian Journal of Control, EarlyView.
Abstract This paper presents a distributed adaptive mixing control (AMC) design for formation maintenance of systems of multiquadrotor UAVs (q‐UAVs) during commanded path‐tracking maneuvers. The proposed formation control scheme has a two‐level structure. The high level defines the desired trajectories for rigid and persistent formation acquisition and
Nasrettin Köksal, Barış Fidan, Ahmed Fahim Mostafa   +2 more
wiley   +1 more source

A multi-method framework for establishing an angular acceleration reference in sensor calibration and uncertainty quantification. [PDF]

Commun Eng
Gießler M, Waltersberger B, Götz T, Rockenfeller R.   +3 more
europepmc   +1 more source

Systematic Study of Reactivity of Mg with Different Organic Solvents

Batteries &Supercaps, EarlyView.
This study examines the surface chemistry of magnesium electrodes in organic solvents to understand passivation layer formation. Using X‐ray photoelectron spectroscopy and time‐of‐flight secondary ion mass spectrometry, it was found that immersion in solvents leads to a thin, uneven passivation layer that becomes more uniform over time.
Muath Radi, Nurbol Ibadulla, Cécile Courrèges, Alexandre Ponrouch, Rémi Dedryvère   +4 more
wiley   +1 more source

In-Motion Forward-Forward Backtracking Fine Alignment Based on Displacement Observation for SINS/GNSS. [PDF]

Sensors (Basel)
Zhu Y, Zhu Y, Wei X, Cui B, Liu S.
europepmc   +1 more source

In‐Depth Analysis of the Origin of Enhanced Ionic Conductivity of Halide‐Based Solid‐State Electrolyte by Anion Site Substitution

Batteries &Supercaps, EarlyView.
The effect of sulfur doping on Li2ZrCl6 is systematically investigated. The formation of biphasic mixtures is confirmed by neutron and X‐ray diffraction studies. The presence of dual anion doping shows improved ionic conductivity of 0.64 mS cm−1. The transition from 1D to 2D pathway (confirmed by density functional theory (DFT)) is beneficial in ...
Priya Ganesan, Ramon Zimmermanns, Jianneng Liang, Yang Hu, Gabriel J. Cuello, Inés Puente Orench, Sebastian Baumgart, Mohsen Sotoudeh, Axel Groß, Thomas Diemant, Alberto Varzi, Maximilian Fichtner   +11 more
wiley   +1 more source

LVID-SLAM: A Lightweight Visual-Inertial SLAM for Dynamic Scenes Based on Semantic Information. [PDF]

Sensors (Basel)
Wang S, Hu Q, Zhang X, Li W, Wang Y, Zheng E.   +5 more
europepmc   +1 more source

Listening to Hong Kong children's perspectives through pretend play

British Educational Research Journal, EarlyView.
Abstract Quality in early childhood education and care (ECEC) has become an increasing concern in recent years. The issue has been regularly discussed by different stakeholders. However, the rising concern regarding quality in ECEC has not seriously taken into account children's perspectives.
Suzannie K. Y. Leung
wiley   +1 more source

Enhancing LiDAR-IMU SLAM for Infrastructure Monitoring via Dynamic Coplanarity Constraints and Joint Observation. [PDF]

Sensors (Basel)
Feng Z, Chen J, Liang Y, Liu W, Peng Y.
europepmc   +1 more source