Results 31 to 40 of about 3,625 (168)

3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics

Advanced Materials Technologies, EarlyView.
A 3D‐printable porous dopamine‐polyurethane acrylate elastomer results in conductive, stretchable, and compressible structures that can be metallized in situ through catechol‐mediated silver reduction. The resulting material function as both compliant soft robot with a and strain sensors without complex assemblies, enabling fully 3D‐printed soft ...
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi   +3 more
wiley   +1 more source

Generation of Accurate, High-Resolution Digital Elevation Models From Ultrawideband, Drone-Borne, Repeat-Pass Interferometric SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) interferometry (InSAR) is a remote sensing technique that allows the generation of digital elevation models (DEMs) by combining two complex SAR images taken with a certain across-track separation.
Victor Mustieles-Perez, Sumin Kim, Julian Kanz, Christina Bonfert, Alexander Grathwohl, Gerhard Krieger, Michelangelo Villano   +6 more
doaj   +1 more source

Multidimensional Waveform Encoding for Synthetic Aperture Radar Remote Sensing

, 2007
This paper introduces and analyses the innovative concept of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new class of highly ...
Moreira, Alberto, A. Moreira, G. Krieger, Gebert, Nicolas, Krieger, Gerhard, N. Gebert   +5 more
core   +1 more source

Traffic Flow Data Collection Methods During Wildfire Evacuation

Fire and Materials, EarlyView.
ABSTRACT With climate change and urbanisation increasing wildfire risk in the wildland–urban interface (WUI), enhancing community evacuation preparedness is crucial. This study evaluates different data collection methods for measuring traffic flows during a community wildfire evacuation drill in Roxborough Park, Colorado, in June 2024.
Ann‐Kristin Dugstad, Maxine Berthiaume, Enrico Ronchi, Noureddine Bénichou, Paul Geoerg, Steve Gwynne, Hui Xie, Kamryn Kubose‐Peutz, Amanda Kimball, Max Kinateder   +9 more
wiley   +1 more source

Digital surveillance of animals and nature recovery

People 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

A Trajectory Estimation Method Based on Microwave Three-Point Ranging for Sparse 3D Radar Imaging

Remote Sensing
Precise estimate of antenna location is essential for high-quality three-dimensional (3D) radar imaging, especially under sparse sampling schemes.
Changyu Lou, Jingcheng Zhao, Xingli Wu, Zongkai Yang, Jungang Miao, Tao Hong   +5 more
doaj   +1 more source

Digital beamforming and multidimensional waveform encoding for sapceborne radar remote sensing [PDF]

, 2007
This paper introduces the innovative concept of multidimensional waveform encoding for space-borne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new generation of SAR systems with ...
Moreira, Alberto, Gebert, Nicolas, Krieger, Gerhard   +2 more
core  

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, EarlyView.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

A Drone‐Borne GPR System for Lake and River Ice Thickness Monitoring

Water Resources Research
Monitoring ice on water is critical to study global and regional environmental change. However, accurate ice thickness mapping over a water body like a lake is still challenging. In this study, we first develop a drone‐borne ground penetrating radar (GPR)
Xu Meng, Zhenjun Zhu, Hai Liu, Yunlong Lian, Haijing Lu, Yikang Wang, Ruige Shi, Billie F. Spencer   +7 more
doaj   +1 more source

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

River Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl, Shayla Triantafillou, Alex Thornton‐Dunwoody, Connor Mertz, Katie Larkin, William Keenan, Steven Griffin, Dylan Davis, Lindsey Blehm   +8 more
wiley   +1 more source