Results 61 to 70 of about 36,907 (226)

Revisiting Enhanced AIS Detection Range under Anomalous Propagation Conditions

Journal of Marine Science and Engineering, 2023
Two clear-air over-the-horizon propagation mechanisms affecting the Automatic Identification System (AIS) detection range are considered. Comparison results are presented between the path loss due to tropospheric ducting and path loss due to tropospheric
Irina Sirkova
doaj   +1 more source

A capacity study for vessel traffic using automatic identification system data [PDF]

, 2018
In this study, we created a simulation model to assess the overall impact of implementing a one-way traffic policy due to construction works. The inputs of the simulation model are found by performing statistical analysis on data from the Automatic ...
De Cock, Kurt, De Vuyst, Stijn, Deceuninck, Matthias, Eloot, Katrien, Vantorre, Marc   +4 more
core   +1 more source

Selection of the key earth observation sensors and platforms focusing on applications for Polar Regions in the scope of Copernicus system 2020-2030 [PDF]

, 2019
An optimal payload selection conducted in the frame of the H2020 ONION project (id 687490) is presented based on the ability to cover the observation needs of the Copernicus system in the time period 2020–2030.
Camps Carmona, Adriano José, Cote, Judith, Hyuk, Park, Lancheros Sepulveda, Estefany Maria, Pierotti, Stéphane, Rodríguez, Pedro, Tonetti, Stefania   +6 more
core   +2 more sources

Structural and Functional Imaging of Motor Outcomes in Twins With Perinatal Stroke: A Case Report

Annals of the Child Neurology Society, EarlyView.
ABSTRACT Background Perinatal arterial ischemic stroke (AIS) affects 1 in 4000 live births. Dystonia, affecting ~20% of children following AIS, is characterized by involuntary muscle contractions and abnormal movements. Why some develop dystonia post AIS, while others do not, remains unclear.
Prisca Hsu, Trish Domi, Cecilia Jobst, Min Sheng, Amanda Robertson, Erum Syed, Pradeep Krishnan, Douglas Cheyne, Nomazulu Dlamini   +8 more
wiley   +1 more source

The Impact of Space-Based AIS Antenna Orientation on In-Orbit AIS Detection Performance

Applied Sciences, 2019
In this paper, a study on the impact of changing the space-based Automatic Identification System (AIS) monopole antenna orientation on its message reception performance in orbit has been conducted.
Wahyudi Hasbi, Kamirul, Mohammad Mukhayadi, Udo Renner   +3 more
doaj   +1 more source

Operating Capacity, Pricing and Supply Elasticity in Container Shipping Markets

International Journal of Finance &Economics, EarlyView.
ABSTRACT We investigate the channels through which changes in operating capacity influence freight rates in the container shipping market using a novel dataset to create an operating capacity index at the shipping‐route level. Our analysis reveals that when supply elasticity is low, an increase in operating capacity tends to drive freight rates upward,
Cong Sui, Shang Wang, Jingmin Liang, Nikos K. Nomikos   +3 more
wiley   +1 more source

Performance Analysis of a Medium Frequency Offshore Grid for Identification Of Vessels Sailing on High Density Maritime European Routes

Polish Maritime Research, 2017
The paper analyses the performance of an Automatic Vessel Identification System on Medium Frequency (AVISOMEF), which works with the Grid Method (GM) on high density maritime European routes using real data and uniformly distributed data.
López Alfonso, Gutiérrez Miguel, Ortega Andrés, Puente Cristina, Morales Alejandro, Gonzalez Diego, Díaz Emma   +6 more
doaj   +1 more source

Proposed AIS Binary Message Format Using XML for Providing Hydrographic-related Information [PDF]

, 2007
UNH is working with the USCG and NOAA to use XML (Extensible Markup Language) to define binary messages for maritime-based AIS (Automatic Identification System). A draft specification format is under development that will enable hydrographic and maritime
Alexander, Lee, Kurt, Schwehr
core   +2 more sources

Maritime Knowledge Discovery and Anomaly Detection Workshop [PDF]

, 2016
Thousands of vessels cross EU waters and hundreds enter into EU ports every day, generating an overwhelming amount of tracking data and reports that make it possible to disguise illegal operations.
MAZZARELLA Fabio, VESPE Michele
core   +1 more source

The Alignment Risks of AI Overconfidence about Consciousness

Journal of Applied Philosophy, EarlyView.
ABSTRACT Many contemporary AI systems (as of May 2025) have expressed extreme confidence in current and near‐future AI lacking consciousness and moral patiency. This article argues that artificially reinforcing such confidence, even if pragmatically useful, poses a novel alignment risk: as coherence‐seeking AIs become more epistemically principled ...
Sharon Berry
wiley   +1 more source