Results 131 to 140 of about 35,558 (273)

A prototype submersible sheathless flow cytometer designed for autonomous platforms

Limnology and Oceanography: Methods, EarlyView.
Abstract Development of submersible flow cytometers has allowed for continuous, in situ measurements of natural assemblages of phytoplankton cells. Here we introduce DeepCyte, a sensitive prototype submersible flow cytometer developed for deployment on autonomous platforms.
J. E. Swalwell, K. Cain, E. V. Armbrust
wiley   +1 more source

Topological Navigation for Autonomous Underwater Vehicles in Confined Semi-Structured Environments. [PDF]

Sensors (Basel), 2023
Rossi C, Caro Zapata A, Milosevic Z, Suarez R, Dominguez S.   +4 more
europepmc   +1 more source

Relationships between acoustic scattering layers and ocean stratification: An acoustic approach to estimate mixed layer depth

Limnology and Oceanography: Methods, EarlyView.
Abstract Ocean stratification, measured as mixed layer depth (MLD), is an important feature that influences many processes in the ocean; for example, by mediating the fluxes of momentum, heat and crucially key gases such as CO2 and oxygen from the atmosphere into the water column and vice versa. The conventional methods to measure stratification (e.g.,
Fabio Campanella, Jeroen van der Kooij, Liam Fernand   +2 more
wiley   +1 more source

An Underwater Human-Robot Interaction Using a Visual-Textual Model for Autonomous Underwater Vehicles. [PDF]

Sensors (Basel), 2022
Zhang Y, Jiang Y, Qi H, Zhao M, Wang Y, Wang K, Wei F.   +6 more
europepmc   +1 more source

Growing trees on farms: Navigating the goals and values of farmers

People and Nature, EarlyView.
Abstract Agricultural landscapes represent critical contexts for advancing policy objectives related to tree cover expansion. This paper explores how farmers' values influence their willingness or ability to grow trees on farms. Research is based on 49 interviews and two focus groups with farmers in England and draws on two social science research ...
Stephen McConnachie, Robert D. Fish, Holly Harris, Beth B. F. T. Brockett, Harry Marshall, Maddy Pearson, Grace van der Wielen, Bianca Ambrose‐Oji   +7 more
wiley   +1 more source

Wide-Area Debris Field and Seabed Characterization of a Deep Ocean Dump Site Surveyed by Autonomous Underwater Vehicles. [PDF]

Environ Sci Technol, 2023
Merrifield ST, Celona S, McCarthy RA, Pietruszka A, Batchelor H, Hess R, Nager A, Young R, Sadorf K, Levin LA, Valentine DL, Conrad JE, Terrill EJ.   +12 more
europepmc   +1 more source

Collaborative Sampling and Imaging of Phytoplankton Communities by Two Long‐Range Autonomous Underwater Vehicles Using Acoustic Tracking and Messaging

Journal of Field Robotics, EarlyView.
ABSTRACT Collaborative operation of multiple autonomous underwater vehicles (AUVs) can effectively achieve scientific goals that are hard to achieve by independently operated vehicles. Some science payloads are large, expensive, and need to be installed in the vehicle's nose cone. A vehicle can only carry one such payload.
Yanwu Zhang, Brian Kieft, Monique Messié, Quinn Shemet, Brett W. Hobson, Paul Roberts, Brent Jones, Michael Anderson, Thom Maughan, Varsha Senthil   +9 more
wiley   +1 more source

Consistent Extended Kalman Filter-Based Cooperative Localization of Multiple Autonomous Underwater Vehicles. [PDF]

Sensors (Basel), 2022
Zhang F, Wu X, Ma P.
europepmc   +1 more source

Autonomous Navigation in Large‐Scale Underground Environments Based on a Purely Topological Understanding of Tunnel Networks

Journal of Field Robotics, EarlyView.
ABSTRACT This work presents a non‐geometrical navigation approach based on a purely topological understanding of underground environments. By conceptualizing subterranean scenarios as a set of tunnels that intersect with each other, and taking a navigation approach based on topological instructions, we simplify the navigation problem to the sequential ...
Lorenzo Cano, Danilo Tardioli, Alejandro R. Mosteo   +2 more
wiley   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source