ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
The Pacific whiteleg shrimp, Litopenaeus vannamei, is the most farmed aquaculture species worldwide with global production exceeding 3 million tonnes annually. Litopenaeus vannamei has been the focus of many selective breeding programs aiming to improve growth and disease resistance. However, these ...
Foods of animal origin represent an important share in the diet of Cameroonian populations. Cameroon is known to be a food basket in the west and central Africa sub-region, and an important supplier of foods on the international markets. In the meantime, food importation is continuously increasing to ...
Chemical substances applied in animal husbandry or veterinary medicine and in crop protection represent substantial environmental loads, and their residues occur in food and feed products. Product approval is governed differently in these two sectors in the European Union (EU), and the occurrence of ...
Abstract Mitochondrial DNA analyses indicate that the Bay of Fundy population of the intertidal tellinid bivalve Macoma petalum is genetically divergent from coastal populations in the Gulf of Maine and Nova Scotia. To further examine the evolutionary forces driving this genetic break, we performed ...
Military diving operations are routinely conducted in what can be one of the most inhospitable environments on the planet, frequently characterized by zero visibility. The inability to clearly see the immediate operational environment has historically been a serious limitation to manned diving operations ...
With an increasing trend for a wide range of users to navigate in unfamiliar coastal waters, the fact that these are often poorly charted can easily be overlooked; with potentially catastrophic results. In some areas these dangers are compounded by other submerged hazards such as debris or ice. In particular, ...
The Atmospheric Diving Suit (ADS) has a longstanding history of use to aid in subsea construction, salvage, repair, platform inspection, oil and gas operations, and scientific purposes such as examining shipwrecks. The emergence of Remotely Operated Vehicle (ROV) technology, and other unmanned underwater ...
Thousands gathered in Austin, Texas, in July to attend the 2017 Unconventional Resources Technology Conference which reflected several of the biggest themes shaping the shale sector and its emergence as an internationally discussed business. Several of the technical presentations highlighted the progress ...
The introduction of the energy efficiency design index (EEDI), which is applicable for various types of new-built ships after January 1,2013, raised concerns regarding the sufficiency of propulsion power and steering devices to maintain maneuverability in adverse conditions. This was the motivation ...
In the article will be reviewed the changes of ship motion patterns originating from a special class of phase space phenomena identified in the nonlinear dynamics literature as homoclinic (When the term appears in italic, it will imply truly homoclinic as well as heteroclinic events). The key incident ...
Abstract Maintaining asset integrity throughout the design life of oil and gas operations is key to the overall success of upstream projects. Specific locations, e.g., geographically remote or deepwater locations, create challenges to materials performance, logistics of installation, corrosion control ...
We demonstrate a novel technique that provides a monitoring gain (relative to launch power) of up to 10 dB for in-service supervisory channels. Fast polarization spinning mitigates NL crosstalk which would otherwise instigate uncorrectable block errors in FEC-supported PolMux signals. The method simplifies ...
Increasing utility of wireless sensors and their decreasing cost with technological innovation has increased their presence in many mobile & wearable devices and many devices are able to sense and relate a variety of sensor data including GPS location to be used for decision making. However, much potential ...
Indonesia is an archipelago. Consequently, the majorities are working around the sea such as a fisherman. While the number of activities at sea are increasing more accident occurred are rising. This research presents marine weather prediction system using Hybrid Methods TS-ANFIS (Adaptive Neuro Fuzzy ...
The Arctic Ocean is ringed by shallow areas along the continental shelves which are home to shore-fast ice throughout much of the winter. These areas are being used for both traditional activities such as fishing and hunting, and increasingly, at least in some locations, resource extraction and related ...
Power sources for marine systems are becoming more versatile, taking advantage several different electrochemical couples to provide energy in locations that are not serviced by conventional electrical loads. Renewable power from wind, solar, and tidal power continues to dominate power generation at ...
The SeaDrone is a novel craft that can both fly and also submerge itself and operate subsea. It is designed for missions to make ocean science measurements close to shore (within 25km) and a relatively low sea-depth (less than 150m). It can carry a sensor payload to make ocean measurements or a camera ...
To enhance the safety of various marine operations in many coastal regions, ocean weather monitoring and prediction systems are playing an increasingly important role over the last couple of decades. To provide marine forecasts in Cook Inlet, Alaska, which has extremely complex geometry and the largest ...
St. George Island, part of the Pribilof Islands, is located in the Bering Sea, more than 320 kilometers (200 miles) north of the nearest Aleutian Island and equally distant to the mainland of Alaska. For nearly two centuries, St. George's primary economy was based on commercial fur seal harvesting. ...
This paper provides a comprehensive empirical performance analysis of various trajectory compression algorithms for offline compression of trajectory data of sea borne objects which include boats, trawlers, ships etc. Our empirical study uses data from a surveillance application. The surveillance application ...