Almadraba is a fishing art whereby a labyrinth of nets intercept the migratory movements of the large tuna, when they cross the Gibraltar Straits. This study, undertaken by AZTI-Tecnalia, involved analysing the chain of marketing of the tuna fish, from the catch in the almadrabas to its freezing - the aim being to design a monitoring system adapted to this mode of fishing -, to its handling and processing and to the first stages of marketing the product. The end target is the design of an identifying label that enables the association of the product with the monitored information.
Until now, most of the work has been concentrated on the FRIALBA frozen fish plant, in Barbate (Cádiz), recently built with the aim of improving the handling and preparation processes for red tuna for its subsequent marketing. The tuna arrives at the plant directly from the almadrabas and here classification, topping, gutting and cutting up takes place. The fillets are extracted and frozen at -60ºC for their subsequent marketings, both on the national market and on the Japanese one.
Japan is the largest market in the world for tuna (it absorbs 30% of the world’s production). The consumption there, basically aimed at the preparation of sashimi, has taken off in the past few years and, thus, imports as well. The sashimi market is, moreover, the most profitable in the world, given that the tuna can reach prices 30 times greater than that which will end up tinned.
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More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
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Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
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The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
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The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
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