Results 121 to 130 of about 1,488,241 (284)

Detecting Plateau Zokor (Eospalax baileyi) Mounds in UAV Imagery of Alpine Meadows Using Deep Learning Algorithms

Remote Sensing in Ecology and Conservation, EarlyView.
We developed PZM‐YOLO to automatically detect plateau zokor mounds in UAV imagery of alpine meadows. The model achieved reliable detection of small and densely distributed mounds under complex backgrounds, outperforming the baseline YOLOv5s. This framework supports mound counting, mound position, rodent impact assessment, and grassland restoration ...
Yang Yang, Limin Hua, Lianguo Wang, Jiazhen Li, Rui Dong, Siwei Yang   +5 more
wiley   +1 more source

A Transferable Individual‐Based Framework for Quantifying Demographic Structure and Spatial Organization in Colonial Species Using UAV Imagery

Remote Sensing in Ecology and Conservation, EarlyView.
Adélie penguins gather in colonies as standing or prone adults, individual chicks, and chick crèches. From drone images, we distinguish adults and chicks by their plumage, identify adult postures by body shape, and estimate the size of chick groups from the area they occupy. We map these groups and measure how closely penguins live together.
Junqi Qin, Lijian Shi, Hongyou Jiang, Hao Liu, Peng Zhao   +4 more
wiley   +1 more source

Investigating the use of the Coanda Effect to create novel unmanned aerial vehicles

, 2009
In recent years the demand for Unmanned Aerial Vehicles (UAV's) has increased rapidly across many different industries and they are used for various applications.
Barlow, Chris, Prior, Stephen D., Odedra, Sid, Lewis, Darren, Erbil, Mehmet Ali, Karamanoglu, Mehmet, Collins, R.   +6 more
core   +1 more source

Directive Antenna Clutter Loss in Slant Paths

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán, Vicente Pastoriza‐Santos, Fernando Machado Domı́nguez, Thomas Prechtl, Pavel Pechac   +4 more
wiley   +1 more source

Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel, Xavier Boulanger, Vegard Arneson   +2 more
wiley   +1 more source

Rotary-Wing Open Source Autonomous Miniature (ROSAM) Unmanned Aerial System (UAS) Design and Implementation for the 2012 AUVSI SUAS Competition

, 2012
The Rotary Open Source Autonomous Miniature Unmanned Aerial Vehicle (ROSAMUAV) team is using the Quadtavius quadrotor for the 2012 Association for Unmanned Vehicle Systems International (AUVSI) Student Unmanned Aerial Systems (SUAS) Competition.
Hoffer, Nathan, Coffin, Christopher M., Chen, YangQuan, Prof., Bone, Jarret, Dennis, Aaron, Bennett, Kason   +5 more
core   +1 more source

AI‐Driven Circular Construction Waste Management for Advancing Sustainable Development

Sustainable Development, EarlyView.
ABSTRACT Construction and demolition waste (C&DW) represents up to 40% of global solid waste, posing a significant barrier to achieving circular economy (CE) objectives and the Sustainable Development Goals (SDGs), particularly SDG 11 and SDG 12. However, construction waste management (CWM) systems remain constrained by fragmented data environments ...
Mohamed T. Elnabwy, Pablo Martinez
wiley   +1 more source

High‐Performance All‐Solid‐State Silicon–Sulfur Batteries Enabled by Li4(BH4)3I Hydride Electrolyte

Small, EarlyView.
A prelithiated silicon anode coupled with a Li4(BH4)3I hydride electrolyte enables stable all‐solid‐state silicon–sulfur batteries with high electrochemical reversibility and suppressed interfacial degradation. The full cell delivers an ultra‐high areal capacity of 23.88 mAh cm−2 and stable cycling over 1000 cycles, while stress‐compensated battery ...
Tao Huang, Zhaotong Hu, Yifei Shao, Xiang Zhang, Caiting Yuan, Zhanning Wu, Takayuki Ichikawa, Fangqin Guo, Tengfei Zhang   +8 more
wiley   +1 more source

Impacts of Introducing Automation in Mining Operations: Insights From Worker Perceptions

Safety Science and Technology, EarlyView.
This study shows that trust is the strongest predictor of mining workers' situation awareness when using automated systems. Communication and coordination also improve situation awareness through trust, highlighting the need for human‐centered system design and training that support calibrated trust and effective teamwork in safety‐critical operations.
Loreto Codoceo‐Contreras, Maureen Hassall   +1 more
wiley   +1 more source

Low computational SLAM for an autonomous indoor aerial inspection vehicle [PDF]

The past decade has seen an increase in the capability of small scale Unmanned Aerial Vehicle (UAV) systems, made possible through technological advancements in battery, computing and sensor miniaturisation technology.
Winkvist, Stefan
core