Results 21 to 30 of about 277,634 (332)

Dynamic Graph Clustering Learning for Unsupervised Diabetic Retinopathy Classification

open access: yesDiagnostics, 2023
Diabetic retinopathy (DR) is a common complication of diabetes, which can lead to vision loss. Early diagnosis is crucial to prevent the progression of DR.
Chenglin Yu, Hailong Pei
doaj   +1 more source

Model Predictive Control Technique for Ducted Fan Aerial Vehicles Using Physics-Informed Machine Learning

open access: yesDrones, 2022
This paper proposes a model predictive control (MPC) approach for ducted fan aerial robots using physics-informed machine learning (ML), where the task is to fully exploit the capabilities of the predictive control design with an accurate dynamic model ...
Tayyab Manzoor   +3 more
doaj   +1 more source

Approximate Dynamic Inversion for Nonaffine Nonlinear Systems With High-Order Mismatched Disturbances and Actuator Saturation

open access: yesIEEE Access, 2020
In this paper, a novel disturbance-observer-based approximate dynamic inversion (ADI) approach is developed for pure-feedback nonaffine-in-control nonlinear systems (PFNNSs) in the presence of both high-order mismatched disturbances and actuator ...
Hao Yang, Hailong Pei
doaj   +1 more source

Investigating Vertical Distributions and Driving Factors of Black Carbon in the Atmospheric Boundary Layer Using Unmanned Aerial Vehicle Measurements in Shanghai, China

open access: yesAtmosphere, 2023
Black carbon (BC) is a significant component of fine particulate matter (PM2.5, with aerodynamic diameters ≤ 2.5 μm), and its spatial distribution greatly affects the global radiation budget. However, the vertical distributions and key driving factors of
Hanyu Wang, Changhai Huang
doaj   +1 more source

A survey on fractional order control techniques for unmanned aerial and ground vehicles [PDF]

open access: yes, 2019
In recent years, numerous applications of science and engineering for modeling and control of unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs) systems based on fractional calculus have been realized.
Cajo Diaz, Ricardo Alfredo   +5 more
core   +2 more sources

Prospects for the development and use of Unmanned Aerial Systems [PDF]

open access: yesPrzegląd Komunikacyjny, 2022
: This article presents the basic assumptions concerning the prospects for the use and development of unmanned flying systems. Data on the use of combat flying platforms are presented.
Leszek Cwojdziński
doaj   +1 more source

A Comparative Study on Application of Unmanned Aerial Vehicle Systems in Agriculture

open access: yes, 2021
Presently in agriculture, there is much ample scope for drone and UAS (Unmanned Aircraft System) development. Because of their low cost and small size, these devices have the ability to help many developing countries with economic prosperity.
Mohammad Sohel Rahman   +3 more
semanticscholar   +1 more source

Unmanned Aerial Vehicles (UAVs) in environmental biology: A Review [PDF]

open access: yes, 2018
Acquiring information about the environment is a key step during each study in the field of environmental biology at different levels, from an individual species to community and biome.
Bogawski, Pawel   +2 more
core   +2 more sources

On the Use of Unmanned Aerial Systems for Environmental Monitoring

open access: yesRemote Sensing, 2018
Environmental monitoring plays a central role in diagnosing climate and management impacts on natural and agricultural systems; enhancing the understanding of hydrological processes; optimizing the allocation and distribution of water resources; and ...
S. Manfreda   +22 more
semanticscholar   +1 more source

Unmanned aerial systems in search and rescue applications with their path planning: a review

open access: yesJournal of Physics: Conference Series, 2021
In recent days, the Unmanned Aerial Systems (UAS) is an emerging technology rapidly across many warfare’s and enable new civilian domains which include real-time monitoring, security, border surveillance, wildlife surveys, providing wireless coverage ...
Ajith V S, K. Jolly
semanticscholar   +1 more source

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