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EMSO (European Multidisciplinary Seafloor and water-column Observatory; http://www.emso-eu.org) is a large-scale European Research Infrastructure (RI) of the ESFRI roadmap composed of fixed-point, seafloor and water-column observatories with the basic scientific objective of near- and realtime, long-term monitoring of environmental processes related to the interaction between the geosphere, biosphere,...
In response to growing commercial interest in mining of seafloor massive sulfide (SMS) deposits, there has been ongoing debate about the possible global abundance of SMS [1,2,3,4]. The need for such assessments is now more urgent, as a number of countries, mining and exploration companies, and international consortia have begun to invest in intensive exploration campaigns for SMS. This paper examines...
The world is changing. Innovations transform our nation, creating whole new industries and occupations. Every job of the future will require a basic understanding of math and science. Science and technology careers exist in a culture of inspiration, discovery, and innovation. Advances in technology will have a meaningful impact on the lives of every American. This paper will discuss an issue, which...
Underwater glider is a long-range autonomous underwater vehicle for oceanographic research that propels them through the ocean by changing their buoyancy. Balance parameters usually obtained through experiments. These kind of inaccurate parameters have a great influence on gliders gliding. In this article, a balance parameters calculation method of underwater glider based on BP neural network is presented...
This paper presents a statistical and techno-economic feasibility study for the exploitation of renewable energy generators and energy storage devices typically installed onboard pleasure boats to transform harbors and ports in energy districts able to exchange energy with the grid. In Europe about 48 million citizens regularly participate in recreational marine activities (36 million of whom are...
Advanced science, technology, engineering, and mathematics (STEM) are universally recognized as being pivotal to the advancement of humanity. STEM competitions promote the entry of youth into these fields in a very effective and at the same time very entertaining way. There are striking parallels between world class sport and STEM competitions that suggest that an in depth look at world class sport...
The world is changing. Innovations transform our nation, creating whole new industries and occupations. Every job of the future will require a basic understanding of math and science. Science and technology careers exist in a culture of inspiration, discovery, and innovation. Advances in technology will have a meaningful impact on the lives of every American. This paper will discuss an issue, which...
Diving as a profession and sport is and will be one of the most dangerous disciplines known by man. Water is not a natural habitat for humans and people need equipment to breathe underwater. Failure in the breathing apparatus, burst eardrum, decompression sickness and nitrogen narcosis are just a couple of problems which can occur during an ordinary dive and result in injuries, long-term illnesses...
This work presents a low cost RTK-GPS system for localization of unmanned surface vehicles. The system is based on the use of standard low cost L1 band receivers and in the RTKlib open source software library. Mission scenarios with multiple robotic vehicles are addressed as the ones envisioned in the ICARUS search and rescue case where the possibility of having a moving RTK base on a large USV and...
Characteristics of an underwater acoustic channel, which hydro-acoustic modems of the S2C technology can measure and provide to upper layer protocols, were used for evaluation of several important communication metrics and so for evaluation of the modem performance under the actual channel conditions. Particularly, these channel characteristics were used for assessment of the delivery success related...
This paper presents an autonomous low cost device for underwater stereo imaging and 3D reconstruction of marine organisms (benthos, fishes, macro and mega-zooplankton) and seabed with a high accuracy. The system is designed for deployments onboard autonomous, fixed and towed platforms. Internal hardware consists of two Raspberry Pi mini-PCs and two Raspberry camera modules. The operational pipeline...
The Oceanic Platform of the Canary Islands (PLOCAN) is a public consortium aimed to support R&D in the fields of ocean science and technology. PLOCAN manage a marine test site providing a set of infrastructures to facilitate the development of emerging ocean energy converters. This test site is placed at the East coast of Gran Canaria island covering a marine surface of 23 km2 and it will include...
The international interdisciplinary field training of marine robotics and applications 'Breaking the Surface BtS started in 2009 as one of the two flagship dissemination activities of the EU-funded FP7 Capacities REGPOT-2008-1 project ‘De-veloping the Croatian Underwater Robotics Research Potential — CURE’. Three BtS field-trainings were organized as CURE activities (BtS2009, BtS2010 and BtS2011)...
Autonomous Underwater Vehicles (AUVs) have been widely used in assisting scientific operations. They can increase the scientific output by performing operations in a cost effective and safe manner. This paper focuses in the underwater archaeology scientific discipline. It presents the distributed high level architecture developed by the Heriot Watt University Ocean Systems Laboratory (HWUOSL) in the...
Here, we analyze recent measured data on global mean surface air temperature anomalies (GMTA) and various external forcing's covering the last 160 years using newly developed techniques that allow discrimination between correlation and causality. This evaluation is based on a new concept for calculating the information flow between time series. Our result demonstrates one-way causality in the sense...
A 19.8 cm diameter horizontal axis hydrokinetic turbine and two shrouds are designed, manufactured and tested in a water tunnel. Effect of yaw angle on performance of the shrouded and unshrouded turbine is investigated experimentally. Consistent power coefficients for the shrouded and unshrouded turbine are obtained for the entire range of tip speed ratio. Output power of the unshrouded turbine is...
HF radar current measurements systems are in widespread use around the world providing very useful data sets for many applications. Data quality is generally good although sometimes the data are noisy especially at the edges of the spatial coverage. New approaches to the quality control of these measurements to remove noisy results or replace them with more reliable estimates, for both direction-finding...
In this study, analytical study to optimally arrange the multi-piles and the concrete base parts of the steel-concrete hybrid substructure for offshore wind was carried out. In order to minimize wave force and wave-induced bending moment subjected to the substructure system, diffraction and structural analysis were carried out for three types of hybrid substructure to the concrete base height. As...
On the base of data of laboratory experiment the transformation of waves above reefs was investigated. The possibility of essential decreasing not only wave height, but the mean period of waves was testified. It was revealed that a system of two reefs better reduces the mean wave period. The decreasing of the mean wave period depends on the distance between the reefs. It was shown that submerged structures...
This paper deals with underwater acoustic communication, and especially details an innovative approach for off the shelves existing modems performances evaluation. The originality is to be able to predict the operational performances of existing acoustic modems in a real complex situation, without sea trials.
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