ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
The National Oceanic and Atmospheric Administration's Ecosystems and Fisheries Oceanography Coordinated Investigations biophysical mooring site 2 (M2, 56.9°N, 164°W) time series, one of the longest running time series of its kind, has provided near-continuous biophysical measurements of the southeastern ...
Billions of contributions are made every day across multiple online communities and social media websites in the form of social messages, social blogs and online discussion. The aim of this paper is to identify such comments and posts which are racist and malicious in nature so that they could be effetely ...
This article reviews and analyzes the needs of Earth observation (EO) services' users, stakeholders, and beneficiaries. It identifies the key elements of the value chain of the European EO infrastructure and builds a comprehensive knowledgebase of those elements, represented as a relational database. ...
This research aims to develop a concrete-like material for underwater construction applications by using fluorogypsum (FG, an industrial by-product of hydrofluoric acid production), class C fly ash, and type II Portland cement. Two Response Surface Models (RSMs) were derived based on compressive strength ...
In this paper we present a method for generating healthy diets for elderly people. The method proposed is based on the Crab Mating Optimization Algorithm, which is inspired from the breeding behavior of crabs in nature. In our case the generated diet is composed of several meals per day and it can be ...
This paper proposes a method for detecting moving objects on an underwater video. Video obtained using an underwater camera to capture the environmental conditions of the area. This research is the initial stage of the underwater surveillance system. Underwater surveillance system enables objects passing ...
Moorings with a subsurface float or a benthic lander with onboard positive buoyancy are often coupled to a heavier expendable iron anchor to hold position on the seafloor. Releasing the weight is the critical first step of a mooring or benthic lander recovery. This paper describes a hierarchal selection ...
In 2015, the Hanna Shoal region of the Chukchi Sea shallower than the 40 m isobath was withdrawn from outer continental shelf oil and gas exploration, a move the White House noted was designed to protect areas of “critical importance ... for marine mammals, other wildlife, and wildlife habitat”. Arctic ...
Increased maritime shipping activity by larger ships is elevating the risk for maritime accidents and environmental impacts. Starting in 2004, these risks are being ameliorated by Automatic Identification System (AIS) technology. Similar to airplane transponders, AIS transmits a vessel's name, type, ...
Arctic and subarctic conditions represent some of the most challenging environments to make long-term in situ oceanographic measurements. These areas bring the normal challenges of deep water, turbidity, uncertain bottom types and, in areas such as Cook Inlet, some of the world's largest tidal height ...
Monitoring the vast expanse of oceans presents a daunting challenge: how to take sufficient high-quality measurements with a relatively small group of specialized scientists and limited resources. Despite advances in remote sensing and autonomous technology, the oceans remain under-explored and under-sampled. ...
Alaska's Kenai fisheries are managed for maximum efficiency while ensuring fair allocation across multiple stakeholder groups and long term sustainability of the fishery. Managers must work to meet the fishery's goals while adapting their commercial and subsistence eco-service management practices to ...
This paper discusses the use of echosounders with forward-looking capabilities (navigation sonar) as scientific instruments for the acquisition of sensor data useful both for short term and long term measurement of Arctic system parameters and variables for the scientific investigation of environmental ...
Fuel effectivization and emission reductions have been on the forefront of research for marine power system solutions. The reduction in fuel use was originally motivated by savings on the principal operating cost of vessels. The need to reduce emissions, both CO2 for the global environment and nitrous ...
The Pacific Islands Fisheries Science Center deploys the Modular Optical Underwater Survey System (MOUSS) to estimate species-specific, size-structured abundance of commercially-important fish species in Hawaii and the Pacific Islands Regions. The MOUSS is an autonomous stereo-video camera system designed ...
Fishing has the highest rate of occupational fatalities in the USA, per the Bureau of Labor Statistics, and Alaska's waters are the deadliest, per Coast Guard statistics [1]. Many fishing fatalities stem from small boats, 44 feet in length or less. Small boats can sink or tip for many reasons including ...
All commercial fishery species harvested globally either live on or near the seabed (also referred to as the benthos or benthic environment) or employ life history strategies or behaviors linked to benthic processes. The act of pursuing and catching benthic and demersal species requires operating fishing ...
The paper focuses on the problem of equipment of small fishing vessels mapping systems. Such systems are complex technical complexes are not intended for installation in small vessels. The paper includes result's description of developed geopositioning system with dynamic informational collection support ...
SEAPIX is a new Dual Steerable multibeam echosounder (DS-MBES) with an original architecture using a steerable symmetric Mills Cross. This configuration allows to image water column and sea bottom in both athwart ship and fore-and-aft direction with steering capability, covering 120° × 120° under ship ...
Abstract Background Invasive non-typhoidal Salmonella (iNTS) disease is a well-described cause of mortality in children and human immunodeficiency virus (HIV)-infected adults in sub-Saharan Africa. Additionally, there is an ill-defined burden of iNTS disease in Southeast Asia. Methods Aiming to ...