Results 21 to 30 of about 1,703 (133)

Soft Active Electromyography Interface for Machine Learning‐Enabled Silent Speech Recognition

open access: yesAdvanced Intelligent Systems, EarlyView.
A soft, hand‐worn electromyography interface enables intent‐driven silent speech recognition without continuous facial attachment. The device integrates liquid‐metal interconnects, a transparent flexible circuit, and elastomer encapsulation with a fingertip electrode that contacts perioral muscles only on demand.
Yuta Kurotaki   +8 more
wiley   +1 more source

Quadcopter Precision Landing on Moving Targets via Disturbance Observer-Based Controller and Autonomous Landing Planner

open access: yesIEEE Access, 2022
Unmanned aerial vehicles, especially quadcopters, play key roles in many real-world applications and the related quadcopter autonomous control algorithms have attracted a great deal of attention.
Nguyen Xuan-Mung   +6 more
doaj   +1 more source

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini   +5 more
wiley   +1 more source

Feedback Linearization and Eigenstructure Assignment Control for Quadcopter Trajectory Tracking

open access: yesAlgerian Journal of Signals and Systems
A quadcopter is a highly coupled and nonlinear multivariable system which attracted the attention of many researchers. During the last decade, several techniques and strategies have been proposed for modeling and controlling Quadcopters.
Hocine LOUBAR   +2 more
doaj   +1 more source

Attitude and Altitude Tracking Controller for Quadcopter Dynamical Systems

open access: yesIEEE Access, 2022
Unmanned aerial vehicle quadcopters have applications in different real-life areas. They are nonlinear systems that necessitate the utilization of nonlinear control techniques.
Manal S. Esmail   +4 more
doaj   +1 more source

Digital surveillance of animals and nature recovery

open access: yesPeople and Nature, EarlyView.
Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley   +1 more source

The Performance of Symbolic Limited Optimal Discrete Controller Synthesis in the Control and Path Planning of the Quadcopter

open access: yesApplied Sciences
In recent years, quadcopter-type unmanned aerial vehicles have been preferred in many engineering applications. Because of its nonlinear dynamic model that makes it hard to create optimal control, quadcopter control is one of the main focuses of control ...
Serkan Çaşka
doaj   +1 more source

On the Synthesis of a Linear Quadratic Controller for a Quadcopter

open access: yesInternational Journal of Applied Sciences and Smart Technologies, 2019
This paper discusses about synthesizing a state-feedback controller for a quadcopter based on an optimal linear quadratic control method. The resulting flight control system enables the quadcopter to maintain stability and to track a reference input. The
Hendra Gunawan Harno
doaj   +1 more source

Integral Adaptive Sliding Mode Control for Quadcopter UAV Under Variable Payload and Disturbance

open access: yesIEEE Access, 2022
The quadcopter unmanned aerial vehicle (UAV) system is considered a good platform for control scheme design as it is highly nonlinear with coupled dynamics and an under-actuated system.
Ahmed Eltayeb   +4 more
doaj   +1 more source

Ultra‐Thin Bipoly Solar Cells With Front Selective n$$ n $$‐Type TOPCon and Rear Blanket p$$ p $$‐Type TOPCon Layers

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
Large area crystalline silicon solar cells fabricated on ultra‐thin (80 μ$$ \upmu $$m) Si wafer featuring polysilicon‐based passivating contacts on both sides can further increase the energy output per unit weight. In this work, the large area, screen‐printed solar cells with high temperature fire‐through contacts, yielded an exceptional efficiency‐to ...
Yuchi Lan   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy