Computer software developed by astrophysicists to locate stars and galaxies in the night sky could help save the whale shark - whose spotted skin is like a starry sky - from extinction, according to new research published in the British Ecological Society’s Journal of Applied Ecology.
Together with Australian marine biologist Brad Norman and JAVA programmer and software specialist Jason Holmberg, astrophysicist Dr Zaven Arzoumanian of the Universities Space Research Association and NASA’s Goddard Space Flight Center in Maryland discovered that a pattern-matching algorithm developed by astronomers to locate celestial objects could be used to identify individual whale sharks. Whale sharks’ spots are analogous to bright stars in the night sky, allowing the trio of researchers to adapt the star pattern recognition technique to the characteristic markings found on the largest fish in the sea. “This is an example of space technology finding an important application here on Earth,” says Arzoumanian.
According to Arzoumanian: “The contrast of white whale shark spots on darker skin is well suited to a machine vision technique known as ’blob extraction’, which measures the locations and dimensions of pixel groups of a single colour. The spatial relationships between these groups, represented by a set of x, y coordinates, form the basis for a unique identifier for each shark.”
Becky Allen | alfa
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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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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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