Results 91 to 100 of about 12,860 (259)
Land Degradation &Development, EarlyView.ABSTRACT Vegetation recovery is vital for reversing soil degradation in subtropical red soil regions. This study evaluates the role of the pioneer fern Dicranopteris in enhancing soil fertility and its spatial variability across degraded hills in South China.
Xiqin Yan +6 more
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UAV Detection with Passive Radar: Algorithms, Applications, and Challenges
DronesThe unmanned aerial vehicle (UAV) industry has developed rapidly in recent years and is being applied in a wide range of fields. However, incidents involving unauthorized UAVs that threaten public safety have occurred frequently, highlighting the need ...
Zhibo Tang +3 more
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Enhanced feature learning and model lightweighting for real-time UAV detection using FEGP-YOLOv8 [PDF]
AIP AdvancesIn realistic scenarios, unmanned aerial vehicles (UAVs) often present as small targets within complex environmental backgrounds, posing significant challenges for detection.
Yuxing Li +4 more
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RT-DETR++ for UAV Object Detection
CoRRObject detection in unmanned aerial vehicle (UAV) imagery presents significant challenges. Issues such as densely packed small objects, scale variations, and occlusion are commonplace. This paper introduces RT-DETR++, which enhances the encoder component of the RT-DETR model. Our improvements focus on two key aspects.
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Land Degradation &Development, EarlyView.ABSTRACT Knowledge of the factors influencing the spatial distribution of farmland soil organic carbon (SOC) content contributes to a better understanding of human impacts on soil, which is crucial for improving soil quality and mitigating climate change.
Ke Quan, Xinguo Li, Xiangyu Ge
wiley +1 more source
Multiscale UAV small target detection based on multispectral interactive attention fusion
四川大学学报. 自然科学版Aiming at the challenges in UAV detection，such as small target size，significant influence by background environment，and difficulties in deep fusion of multispectral features，this paper proposes a multiscale multispectral interactive attention fusion ...
WU Chang-Ke +7 more
doaj
Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing
Limnology and Oceanography: Methods, EarlyView.Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias +6 more
wiley +1 more source
DronesThe detection and identification of unmanned aerial vehicles (UAVs) using radio frequency (RF) signals becomes particularly challenging in congested spectral environments, where conventional approaches relying solely on spectral characteristics often ...
Yanqueleth Molina-Tenorio +2 more
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Vision-based detection of aircrafts and UAVs
, 2017 Unmanned Aerial Vehicles are becoming increasingly popular for a broad variety of tasks ranging from aerial imagery to objects delivery. With the expansion of the areas, where drones can be efficiently used, the collision risk with other flying objects increases.
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Research Study Concerning the Structural Design of a Drone Using 3D Print Technology
Macromolecular Symposia, EarlyView.ABSTRACT The frame of a drone serves as support to hold in place all the key components of the drone, such as the battery, controller board, motors, and all the modules needed for different projects. In the industry, the drone frame is CNC machined from a block of material, or in some cases it is made of composite materials, carbon fiber, and ...
Gabriel George Geambaşu +2 more
wiley +1 more source