Arpa Alang Marine Services is well established marine services in india and marine products in india by abled ship brokers. With the vast experience in global marine services we are among the top marine Industries in india based at alang ship breaking yard.
Aviosat Technology Private Limited is a young and growing organization started with the passion to serve the best by its quality products and services to demanding customers in the area of Broadcast, Aviation and Power Conditioning.
At Aviosat we work with the philosophy of Vision->Initiative->Implementation->Delivery
Realizar el registro completo del material bibliográfico así como el control de los préstamos y devoluciones a la biblioteca y mediante la intranet de la institución, permite a los alumnos realizar búsquedas simples y avanzadas para ubicar un determinado material bibliográfico a fin de realizar una reserva.
Aviosat Technology Private Limited is a young and growing organization started with the passion to serve the best by its quality products and services to demanding customers in the area of Broadcast, Aviation and Power Conditioning.
At Aviosat we work with the philosophy of Vision->Initiative->Implementation->Delivery
Realizar el registro completo del material bibliográfico así como el control de los préstamos y devoluciones a la biblioteca y mediante la intranet de la institución, permite a los alumnos realizar búsquedas simples y avanzadas para ubicar un determinado material bibliográfico a fin de realizar una reserva.
We Nitya Marine are a trader, supplier & exporter of Navigation Equipment, Marine Antique & Echo Sounder. Owing to their excellent features, these Navigation Equipment-Deck & Engine Room Machinery are applauded in the market.
The ICES Symposium “Effects of fishing on benthic fauna, habitat and ecosystem function” took place in Tromsø, Norway from 16-19th June 2014.
Abstract:
Beam trawling causes physical disruption to the seafloor through physical contact of the gear components on the sediment and the resuspension of sediment into the water column in the turbulent wake of the gear. Recently Dutch beam trawlers have replaced tickler chains by electrodes as alternative stimulation for catching flatfish. It is claimed that benthic impacts are reduced. Here we report on trials in a medium sand fishing ground to compare the physical impact of a conventional 4m commercial tickler chain beam trawl with that of the new commercial “Delmeco” pulse trawl. We use a Kongsberg EM2040 multibeam echo sounder (MBES) to measure the extent to which the beam trawls modify the topography of the substrate and a particle size analyser (LISST 100X) to measure the concentration and particle size distribution of the sediment mobilized into the water column. MBES measurements reveal that the disturbed sediment in the trawl track was on average located at a centimetre deeper after trawling of the conventional beam trawl than after pulse trawling. Particle size distributions of the sediment plumes were measured at 25m, 45m and 65m behind the gear and did not reveal any differences in concentrations between the two trawls. Whereas the empirical data serve comparative purposes, their lack of predictive capacity limits extrapolation to fleet level. Finite element (FE) models have shown to overcome this for otter trawls by predicting the penetration depth and sediment displacement associated with each gear component in different sediment types. In this study, FE models were developed for the conventional tickler chain beam trawl and the pulse trawl. Predictions were validated by results obtained during sea trials. As such, this study attempts to provide the basis for future predictions of physical impacts of beam trawling and its technical advances on a larger spatial scale.
Marine radars are usually short range radars that are used by ships to pinpoint locations about other ships and land in the area.The frequencies with which these radars are operated are known as x-band or s-band frequencies.
A gyroscope, not to be confused with gyrocompass, is a spinning wheel mounted on gimbal so that the wheel's axis is free to orient itself in any way. When it is spun up to speed with its axis pointing in some direction, due to the law of conservation of angular momentum, such a wheel will normally maintain its original orientation to a fixed point in outer space (not to a fixed point on Earth).
We Nitya Marine are a trader, supplier & exporter of Navigation Equipment, Marine Antique & Echo Sounder. Owing to their excellent features, these Navigation Equipment-Deck & Engine Room Machinery are applauded in the market.
The ICES Symposium “Effects of fishing on benthic fauna, habitat and ecosystem function” took place in Tromsø, Norway from 16-19th June 2014.
Abstract:
Beam trawling causes physical disruption to the seafloor through physical contact of the gear components on the sediment and the resuspension of sediment into the water column in the turbulent wake of the gear. Recently Dutch beam trawlers have replaced tickler chains by electrodes as alternative stimulation for catching flatfish. It is claimed that benthic impacts are reduced. Here we report on trials in a medium sand fishing ground to compare the physical impact of a conventional 4m commercial tickler chain beam trawl with that of the new commercial “Delmeco” pulse trawl. We use a Kongsberg EM2040 multibeam echo sounder (MBES) to measure the extent to which the beam trawls modify the topography of the substrate and a particle size analyser (LISST 100X) to measure the concentration and particle size distribution of the sediment mobilized into the water column. MBES measurements reveal that the disturbed sediment in the trawl track was on average located at a centimetre deeper after trawling of the conventional beam trawl than after pulse trawling. Particle size distributions of the sediment plumes were measured at 25m, 45m and 65m behind the gear and did not reveal any differences in concentrations between the two trawls. Whereas the empirical data serve comparative purposes, their lack of predictive capacity limits extrapolation to fleet level. Finite element (FE) models have shown to overcome this for otter trawls by predicting the penetration depth and sediment displacement associated with each gear component in different sediment types. In this study, FE models were developed for the conventional tickler chain beam trawl and the pulse trawl. Predictions were validated by results obtained during sea trials. As such, this study attempts to provide the basis for future predictions of physical impacts of beam trawling and its technical advances on a larger spatial scale.
Marine radars are usually short range radars that are used by ships to pinpoint locations about other ships and land in the area.The frequencies with which these radars are operated are known as x-band or s-band frequencies.
A gyroscope, not to be confused with gyrocompass, is a spinning wheel mounted on gimbal so that the wheel's axis is free to orient itself in any way. When it is spun up to speed with its axis pointing in some direction, due to the law of conservation of angular momentum, such a wheel will normally maintain its original orientation to a fixed point in outer space (not to a fixed point on Earth).
4. Alang Ship Breaking
Arpa Alang Marine Services is a name known
for its quality services/products in the global
marine services industry based at Alang ship
breaking yard. We are professionally managed
supplier of ship spare parts, equipments and
Marine Products In India. We supply all types
of used (second hand) but in good condition
spare parts, safety equipments, and several
marine machineries.