Results 71 to 80 of about 3,610 (212)

Geophysical Prospecting for the Detection of Buried and Shallow Submerged Archaeological Sites of Roman Period in the Lagoon of Venice (Italy)

Archaeological Prospection, Volume 32, Issue 4, Page 1005-1019, October/December 2025.
ABSTRACT We present a study that combines several marine geophysical techniques to detect and map archaeological sites from the Roman period in the shallow waters of the Venice Lagoon, Italy. We employed marine electrical resistivity tomography (M‐ERT), a drone‐based unmanned surface vehicle (USV) multibeam sonar, and subbottom profiler technology to ...
Carlo Beltrame, Elisa Costa, Paolo Mozzi, Alberto Carrera, Jacopo Boaga   +4 more
wiley   +1 more source

Evaluating SOFC-based Power System Concepts for Unmanned Undersea Vehicles [PDF]

ECS Transactions, 2009
System concepts for powering an unmanned undersea vehicle (UUV) with a solid oxide fuel cell (SOFC) power generator are developed and evaluated through modeling studies of variations in system configurations and design parameters. System concepts that meet the continuous electrical loads for sustained operations and mission selectable capabilities for
Robert Braun, Kyle Kattke
openaire   +1 more source

Marine Wireless Big Data: Efficient Transmission, Related Applications, and Challenges

, 2017
The vast volume of marine wireless sampling data and its continuously explosive growth herald the coming of the era of marine wireless big data. Two challenges imposed by these data are how to fast, reliably, and sustainably deliver them in extremely ...
Jiang, Tao, Li, Wei, Li, Yuzhou, Zhang, Yu   +3 more
core   +1 more source

Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network

Advanced Quantum Technologies, Volume 8, Issue 10, October 2025.
The article explores securing a dynamic global quantum network using continuous variable QKD, proposing a unified three‐layer network architecture for integrating existing QKD networks. It evaluates secret key rates across various channels and introduces the link capacity as a metric for determining the optimum path for secret key distribution in a ...
Mikhael T. Sayat, Sebastian P. Kish, Ping Koy Lam, Nicholas J. Rattenbury, John E. Cater   +4 more
wiley   +1 more source

TeleOperator/telePresence System (TOPS) Concept Verification Model (CVM) development [PDF]

The development of an anthropomorphic, undersea manipulator system, the TeleOperator/telePresence System (TOPS) Concept Verification Model (CVM) is described.
Shimamoto, Mike S.
core   +1 more source

Organic over-the-horizon targeting for the 2025 surface fleet [PDF]

, 2015
Please note that this activity was not conducted in accordance with Federal, DOD, and Navy Human Research Protection RegulationsAdversarial advances in the proliferation of anti-access/area-denial (A2/AD) techniques requires an innovative approach to the
Cohort 21, Goh, William, Gulledge, Joseph, Harris, Paul, Haubold, Kyle, Hoo, Yew Kee, Johnson, Cale, Judy, Brian, Lau, Dylan Zhiliang, Lua, Kwong Yang, Ng, Cheng Leon, Phua, Weiyou, Poh, Yang Sian, Riner, Jason, SEA Cohort SEA-21A, Spurr, Nathaniel, Team Alpha   +16 more
core  

Mission Abort Policy Considering Imperfect Alarms and Two Abort Options

Naval Research Logistics (NRL), Volume 72, Issue 6, Page 858-867, September 2025.
ABSTRACT A mission may be aborted during operation to increase the likelihood of system survival when an alarm system indicates that the system has entered a defect state. However, due to measurement and environmental noise, missed and false alarms frequently occur during online condition monitoring, complicating the decision‐making process for mission
Jiawen Hu, Piao Chen
wiley   +1 more source

Underwater Target Search and Tracking Based on Air-Sea Heterogeneous Unmanned Platform

水下无人系统学报
The marine heterogeneous unmanned systems can effectively enhance the implementation efficiency of complex missions. In this paper, autonomous undersea vehicles(AUVs) and unmanned aerial vehicles(UAVs) were used for searching and tracking unknown ...
Wenjun DING, Yajun CHAI, Yuxian YANG, Jiamin LIU, Zhaoyong MAO   +4 more
doaj   +1 more source

Satellites at work (Space in the seventies) [PDF]

, 1971
The use of satellites in the areas of communications, meteorology, geodesy, navigation, air traffic control, and earth resources technology is discussed.
Corliss, W. R.
core   +1 more source

Flow Memory Effect on Open‐Frame Remotely Operated Vehicle Motion

Journal of Field Robotics, Volume 42, Issue 6, Page 2611-2638, September 2025.
ABSTRACT The flow memory effect is a kind of viscous force caused by acceleration between continuous phases and underwater vehicles and the development of the boundary layer near the interfacial surface. This paper establishes a 6‐degrees‐of‐freedom unsteady equation of motion describing the flow memory effect on viscous hydrodynamic loads.
Ruinan Guo, Yingfei Zan, Wenzhi Fu, Chenlei Cao, Duanfeng Han, Nan Sun   +5 more
wiley   +1 more source