ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
La presente invenzione si colloca nell'ambito dei dispositivi di salvataggio in acqua, in particolare descrive un equipaggiamento di salvataggio che si adatta ad essere utilizzato nell'apnea e/o nella pratica della pesca subacquea, ma che potrebbe essere utilizzato in altre applicazioni come dispositivo ...
This paper reports some tests conducted on a new magnetic device for the reduction of fuel consumption and pollutant emissions, installed onboard an Italian trawler since March 2013 and tested in laboratory in May 2014. The electromagnetic field generated by the device operates as a fuel treatment to ...
The trend of biomimetic underwater robots has emerged as a search for an alternative to traditional propeller-driven underwater vehicles. The drive of this trend, as in any other areas of bioinspired and biomimetic robotics, is the belief that exploiting solutions that evolution has already optimized ...
Over the last two decades, zebrafish (Danio rerio) have emerged as an efficient model to aid in the research of a broad range of human diseases as well as such diverse applications as environmental modelling and drug discovery. Economically, the large number, low price and low maintenance requirements ...
Bioultrasonics (BUS), a new concept of combining bioelectricity and ultrasonic (US) technology is demonstrated in this work. A feasibility study of the BUS stimulation for aquaculture fish was conducted and a higher survival rate of several fishes from the BUS-stimulated group was obtained. The BUS ...
This paper focuses on the development of closed greenhouse concepts and application of that technology to aqua-ponics systems. At first, aquaponics systems and closed greenhouses with TES are described. Then, TES in abandoned mines are discussed. Finally, ongoing research on aquaponics systems at the ...
Dredging is the process of removing sediments from the seabed to deepen the waters for the safe navigation of vessels. The dislodged materials from the seabed, i.e. dredged marine soils, are generally disposed of as a geowaste. This paper examines the potential reuse of the dredged materials within ...
Effects of six different pesticides on the growth of Chlorella vulgaris were investigated in this paper. The results showed that when the chlorella were cultured in the media with carbendazim, procymidone, thiram, tebuconazole, prochloraz and fludioxonil repectively, lower concentrations(<;1mg/L) ...
Lack of good inter-organization development methodology often leads to failure in establishment of interoperability platforms needed for streamlining operations among government agencies. To overcome the challenge, this paper proposes a collaborative methodology and management approach that emphasizes ...
This paper describes a novel framework to segment elongated strips of marine oil spill based on a cooperative model. We construct a higher-order energy function which characterizes data consistency and smoothness of varying orders in an integrated framework. We model the data consistency in terms of ...
We demonstrate the performance of optical fibre dissolved oxygen (DO) sensor when subject to different core material and sizes. It was found that fluorescence emission from oxygen sensitive material coated at the end-face of an optical fibre DO sensor varies with core material and sizes. Glass core ...
The data-link layer protocol is of great significance for the effectiveness and reliability of the transmission. In terrestrial wireless networks, there are three error control protocols in data-link layer, stop-wait ARQ, go-back-N ARQ and selective ARQ. Moreover, LT code, an advanced error control ...
This paper presents an overview of this field of research, outlines some of the opportunities available to add value to fishery by-product streams alongside some of our most recent studies and data in this area. In Atlantic Canada around 418 000 tonnes per year waste is produced at fish processing plants. ...
Oil and gas operations have moved from conventional petroleum reserves to unconventional petroleum reserves such as remote offshore, deep Ocean and the Arctic. The management of oil spills is especially challenging due to these conditions. Oil spills are typically due to vessels accidents, tanker discharges, ...
Recently, the need for offshore aquaculture has become increasingly important in raising migratory fish species, such as, tuna and mackerel, in an offshore environment. Moreover, offshore fish cages are located 2-5 km offshore with water depths ranging from 40 to 100 m. Hence, visiting the fish cages ...
This paper presents a thorough approach characterizing the transit efficiency of a hybrid-driven underwater glider (HDUG) with a foldable propeller. A kind of HDUG with a folding propulsion mechanism has been designed in this paper. The HDUG features high efficiency penetrating in ocean like conventional ...
This paper describes the outcomes of a TechSurge sponsored by the Marine Technology Society focused on ocean sensors. Specific goals of the meeting were (1) provide a forum for the exchange of information related to ocean sensors and their role in long-term, autonomous operation; (2) assess ocean observing ...
The dynamics of a point absorber wave energy collector (WEC) were investigated using the University of New Hampshire (UNH) developed finite element computer program Aqua-FE and tank testing. The WEC design considered here makes use of a buoy rigidly connected to a long, vertical inertia tube which is ...
Commercial Autonomous Underwater Vehicles (AUVs) are in general very complex and expensive machines. Because of this reason, planning long term multi-agent surveys at sea based on the deployment of a substantial number of such kind of vehicles, become a difficult task and, in general, non a realistic ...
This study presents a wireless attitude heading and reference system (AHRS) adapted for use in marine environments where it was used to characterize the motion of a pneumatic rotary feed spreader representative of designs commonly utilized in large-scale salmon aquaculture. The attitude of the spreader ...