ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
ABSTRACT: Worldwide, there is a risk of tension between the fishing industry and the offshore oil and gas industries because of competing requirements for use of the seabed. Fishing activities can damage installations, be hazardous to the environment and have the potential to cause loss of life. The ...
ABSTRACT Laser line scan is an optical system for observing the seafloor. A rotating prism in a towed fish sweeps a laser beam across the bottom. The return signal is received at the fish, and can be enhanced digitally using sophisticated image-processing techniques. Laser line scan's coverage rate ...
ABSTRACT This paper identifies the offshore hydrocarbon operations which contribute to planned and unplanned objects being placed on the seafloor by the oil and gas industry Examples of underwater equipment and debris likely to be encountered are described The interaction and co-operation required ...
ABSTRACT While the problems of over-fishing and eutrophication continue largely unchecked, the Ospar Commission, which exists to improve the quality of European seas, requires governments, the public and the oil companies to find £20 billion to remove millions of tonnes of steel to demonstrate its ...
ABSTRACT The 1995 and 1996 surveys of Beaufort's Dyke were commissioned to determine whether munitions dumping operations at the charted explosives disposal site had resulted in chemical contamination of the seabed sediments or commercially exploited fish and shellfish species, and to determine the ...
Opisthorchis felineus or Siberian liver fluke is a trematode parasite (Opisthorchiidae) that infects the hepato-biliary system of humans and other mammals. Despite its public health significance, this wide-spread Eurasian species is one of the most poorly studied human liver flukes and nothing is known ...
INTRODUCTION Situated within the South Atlantic, the Falkland Islands comprise an archipelago of over 400 islands, covering an area of 12,200 square kilometres In recent times, sheep farming has been eclipsed in economic terms by the highly lucrative sale of licences to fish within the Island's Conservation ...
Introduction This study is part the project “Nursing in Borderland – Finnmark 1939–1950” within nursing history that sheds light on nursing and health care during World War II in Finnmark County, Northern Norway. The study focuses on challenges in nursing care that arose during the war because of war ...
The number of submarine pipelines in the North Sea continues to grow and with it comes the need to monitor and service such systems. In most areas of the North Sea, pipeline inspections are required annually by government inspectorates. These twelve-monthly inspections must be capable of determining, ...
Results from two advanced complementary research echosounding systems are examined and discussed The more complex system is a Hydrographic Wide Swath Sweeping Survey Echosounder for shallow and deep water applications (Hydrosweep) for accurate bathymetric surveys and terrain-following navigation The ...
The paper reviews current knowledge of intensity and directionality of bat echolocation signals. Recent studies have revealed that echolocating bats can be much louder than previously believed. Bats previously dubbed “whispering” can emit calls with source levels up to 110 dB SPL at 10 cm and the louder ...
INTRODUCTION Dangerous cargoes lost in the North Sea must e salvaged before they can cause accidents. Lost cargoes must be found using sonar, and then identified with still and video cameras mounted on a remotely operated vehicle (ROV). Finally, the cargoes must be salvaged or neutralized. The practice ...
INTRODUCTION Since the arrival of seamen in the Bight of Benin, continuous survey and sounding of the bars rivers and ports of Nigeria have been carried pt by master mariners, shipping agents, the Royal Navy, oil companies, dredging companies and the Nigerian Ports Authority. The Ports Authority is ...
ABSTRACT This paper discusses some of the problems associated with the design of subsea pipelines for the hydrocarbon industry Concentrating primarily on subsea tiebacks In the North Sea, it looks at those aspects of design which reflect the tensions between operational requirements, installation requirements ...
ABSTRACT The Unmanned, Untethered, Underwater Vehicle MARTIN was launched by Maridan, Denmark in 1995. MARTIN is being instrumented for bathymetry and inspection of offshore installations (pipelines, sea cable). Sea trials are continuing. UUV are expected to become a feasible supplement to ROVs for ...
ABSTRACT The Ross Worm (Sabellaria spinulosa) can, when found in sufficiently high densities, form a biogenic reef attracts other fauna to the same vicinity. Such reef are now protected as an Annex 1 habitat under the European Union Habitats Directive. As a result, companies proposing to lay infrastructure ...
A floating device is disclosed. The device comprises a first cup member and a second cup member, each having a base and an open end, the first cup member being formed with an opening at a center of a respective base. In some embodiments of the present invention the device comprises a connector member ...
A float stop (5) for a fishing hook, through which extends a through-hole (15) to define an axis of the float stop (5). The float stop (5) tapers in a given direction along its axis from one end (25) thereof to its opposite end (27), the said one end (25) being of greater cross-section than the said ...
A fishing reel for winding and releasing a fishing line includes a tubular spool being configured to wind the fishing line onto an outer periphery thereof, a spool shaft made of metal, the spool shaft being attached to an inner periphery of the spool, and a Diamond Like Carbon (DLC) layer being formed ...
Potassium-containing polyphosphate glasses having a relatively high amount of potassium and a relatively low level of insoluble material (e.g., less than about 10% by weight), and a method for their production that includes using a boron-containing glass-former additive. More specifically, these polyphosphate ...