ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
The technology, business, and policy dynamics around the development of unmanned surface vehicles (USVs) have evolved significantly in recent years. These foreshadow the development of fully autonomous large-scale vessels. This paper provides a concise summary of the current trends in unmanned surface ...
Communication in the ocean vessel wireless ad hoc networks which currently rely on shore-based cellular stations, is expensive and can only be used near the coast. It is a big challenge for ocean vessels to achieve economic and large-scope communications, due to the rare encounter opportunities and ...
In this work we report, for the first time, on the fabrication of portable transdermal alcohol detector device, based on lab made tin oxide (SnO2) gas sensors. This method allowed us the continuous monitoring of alcohol in a non-invasive way with low cost and easy fabrication process. From the calibration ...
Abstract BACKGROUND Slugs and snails constitute major crop pests. Withdrawal of metaldehyde has prompted a search for more environmentally friendly yet fast acting molluscicides. This study investigated the response of representative molluscs to conidia and volatile organic compounds (VOCs) of the ...
Saxitoxin (STX) and its analogues produced by toxic dinoflagellates accumulate in bivalves, and routine monitoring of bivalves is important to prevent cases of human poisoning. In this study, we describe a rapid detection method for the analysis of STXs using ultra-performance liquid chromatography ...
In Taiwan, immigrant workers play an important role in fisheries but they are easily ignored by society. The health problems and associated characteristics of immigrant workers in fisheries remain unclear. Descriptive and retrospective analyses were performed. Outpatient data were collected from a primary ...
The development of the control system, such as monitoring and control system using voice command, in the electronic device recently increased. One of the biggest and most comprehensive interface platforms was Google Assistant. There was a great opportunity in developing Google Assistant application ...
Linear orbit tracking algorithm of navigation for aquaculture paddle boat. Based on the motion coordinate system, after the establishment of the paddle boat hydrodynamic model, the transfer function and state equation of the paddle boat yaw angle system, the sliding mode control method is adopted to ...
The purpose of the National Oceanic and Atmospheric Administration (NOAA) CoastWatch/OceanWatch/PolarWatch Program (a.k.a. “CoastWatch”, https://coastwatch.noaa.gov) is to improve decision outcomes by facilitating the use of ocean satellite data in applications and research. NOAA CoastWatch provides ...
With the increasing availability of high-resolution comprehensive spatio-temporal ocean models and observation systems, ocean data visualization has become ubiquitous. This is due to the major impact of ocean products on disaster management, shipping, fisheries, autonomy, coastal operations, and scientific ...
Five Unmanned Surface Vehicles (USVs) were deployed off the west coasts of the U.S. and Canada in summer 2018 as a first step toward evaluating the effectiveness and efficacy of USVs as survey/research platforms. The Saildrone USVs (Saildrone, Inc.) surveyed a total of 5,400 nmi along 124 transects ...
Multibeam echosounder (MBES) technology has been constantly evolving since its commercial introduction in the late 1970s. The early systems were large and designed to efficiently acquire bathymetric data in deep water. As the underlying sonar technologies improved and computing power increased, systems ...
In a perfect acoustic world, acoustic backscatter energy would only be received from targeted animals in experimental measurements or surveys. Backscatter from unwanted targets is considered noise. To increase backscatter from targets of interest the amount of energy in the transmit pulse can be increased ...
Over the past few decades coastal regions have experienced considerable socio-economic change. Accompanying these socio-economic shifts are unprecedented environmental changes, which include variation in magnitude and frequency of extreme weather events, marine heatwaves, increased ocean acidification, ...
Over the last 30 years, we have been fortunate to work closely with Dr. John Ehrenberg in the fisheries sonar and acoustic telemetry research fields. With John's passing in the fall of 2018, we felt it was important to honor John's research with this publication. We were involved in multiple research ...
A novel Doppler based speed measurement technique for free-ranging acoustically tagged fish was developed and validated through a field experiment in a marine aquaculture farm. For emulated swimming speeds in the range 25cms-160cms-1, an rms error of 5cms-1 with a standard deviation of 4.7cms-1 was ...
In the first place, buoy monitoring system is developed to solve the problem of easily discarded fishing nets, that is not only polluting the ocean, but also risking the fishery sustainability. However, this system is also preventive, as it can prevent the loss of fishing nets too. The buoy monitoring ...
This paper shows the results obtained from the evaluation of two methods for the optimization of a Hybrid Renewable Energy System (HRES). The first consists of an algorithm developed in MATLAB. The second is a model developed in the HOMER tool. The potential of a renewable resources, the energy demand ...
Trend Assessment and Scenario Development Analysis approach was carried out in this study. This approach is a framework specifically designed to look at the direction of technological development and possible conditions that occur in the future. First stage of the framework consists of the Delphi study, ...