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UCI-led team creates new ultralightweight, crush-resistant tensegrity metamaterials

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IMAGE: Novel tensegrity metamaterials by UCI and Georgia Institute of Technology researchers employ isolated compressive loop elements that are exclusively connected through a continuous network of tensile members (highlighted in magenta).
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Credit: Jens Bauer and Cameron Crook / UCI
Irvine, Calif., March 11, 2021 - Catastrophic collapse of materials and structures is the inevitable consequence of a chain reaction of locally confined damage - from solid ceramics that snap after the development of a small crack to metal space trusses that give way after the warping of a single strut.
In a study published this week in
Advanced Materials, engineers at the University of California, Irvine and the Georgia Institute of Technology describe the creation of a new class of mechanical metamaterials that delocalize deformations to prevent failure. They did so by turning to tensegrity, a century-old design principle in which isolated rigid ba ....

United States , Georgia Institute Of Technology , Orange County , Julie Kraus , Howard Gillman , Lorenzo Valdevit , Jens Bauer , University Of California , Architected Materials Group , Association Of American Universities , National Science Foundation , Advanced Materials , Georgia Institute , Architected Materials , Julian Rimoli , Georgia Tech , Cameron Crook , National Science , American Universities , Chancellor Howard Gillman , Technology Engineering Computer Science , Mechanical Engineering , Nanotechnology Micromachines , Research Development , ஒன்றுபட்டது மாநிலங்களில் , ஜார்ஜியா நிறுவனம் ஆஃப் தொழில்நுட்பம் ,

Tumours illuminated brightly and precisely with new biodegradable nanoprobe

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To highlight tumours in the body for cancer diagnosis, doctors can use tiny optical probes (nanoprobes) that light up when they attach to tumours. These nanoprobes allow doctors to detect the location, shape and size of cancers in the body.
Most nanoprobes are fluorescent; they absorb light of a specific colour, like blue and then emit back light of a different colour, like green. However, as tissues of the human body can emit light as well, distinguishing the nanoprobe light from the background light can be tough and could lead to the wrong interpretation.
Now, researchers at Imperial College London have developed new nanoprobes, named bioharmonophores and patented at Imperial, which emit light with a new type of glowing technology known as second harmonic generation (SHG). ....

City Of , United Kingdom , Claire Teulon , Shuai Jiang , Martina Konantz , Claudia Lengerke , Periklis Pantazis , Daniel Crespy , Shahed Behzadi , Katharina Landfester , Ingo Lieberwirth , Konstantinos Kalyviotis , Aysen Unsal , Ali Yasin Sonay , Royal Society , Imperial College London , European Union , Swiss National Science Foundation , Swiss National Centre Of Competence , Light Microscopy , Wellcome Trust , Swiss National Centre , Targeted High Resolution In Vivo Tumor , Sine Yaganoglu , Sandro Sieber , Sylvie Roke ,

HAWC Gamma Ray Observatory discovers origin of highest-energy cosmic rays in the galaxy

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IMAGE: An infrared image of the dust clouds in the Cocoon region taken with the Spitzers Space Telescope s IR photometer. The HAWC TeV gamma-ray excess (color from green to yellow to.
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Credit: TeV: Binita Hona (HAWC Collaboration), IR: Hora et. al, Spitzer s Growing Legacy, ASP Conference Series, 2010, P. Ogle, ed.
LOS ALAMOS, N.M., March 11, 2021 A long-time question in astrophysics appears to finally be answered, thanks to a collection of large, high-tech water tanks on a mountainside in Mexico. The High-Altitude Water Cherenkov (HAWC) data shows that the highest-energy cosmic rays come not from supernovae, but from star clusters. ....

United States , Los Alamos , Patrick Harding , Henrike Fleischhack , Binita Hona , Sabrina Casanova , Petra Huentemeyer , Kelly Malone , Dezhi Huang , Galactic Science Working Group , Science Centre , Roger Blandford At Stanford University , University Of Utah , National Science Foundation , Los Alamos National Laboratory , Regents Of The University California , Battelle Memorial Institute , University Of Wisconsin , Texasam University System , Department Of Energy National Nuclear Security Administration , Michigan Technological University , Catholic University , High Altitude Water Cherenkov , Cygnus Cocoon , Nature Astronomy , Nuclear Physics Polish Academy ,

New approach found for energy-efficient AI applications

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IMAGE: The algorithm will be implemented on brain-inspired computing systems, like the spike-based SpiNNaker (pictured here). SpiNNaker is part of the Human Brain Project s EBRAINS research infrastructure.
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Credit: © Forschungszentrum Jülich
Most new achievements in artificial intelligence (AI) require very large neural networks. They consist of hundreds of millions of neurons arranged in several hundred layers, i.e. they have very deep network structures. These large, deep neural networks consume a lot of energy in the computer. Those neural networks that are used in image classification (e.g. face and object recognition) are particularly energy-intensive, since they have to send very many numerical values from one neuron layer to the next with great accuracy in each time cycle. ....

Wolfgang Maass , Theoretical Computer Science , Graz University , Nature Machine , European Human Brain Project , Technology Engineering Computer Science , Computer Science , Theory Design , Electrical Engineering Electronics , ஓநாய் மாஸ் , கோட்பாட்டு கணினி அறிவியல் , க்ர்யாஸ் பல்கலைக்கழகம் , இயற்கை இயந்திரம் , ஐரோப்பிய மனிதன் மூளை ப்ராஜெக்ட் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் , கணினி அறிவியல் , கோட்பாடு வடிவமைப்பு , மின் பொறியியல் மின்னணுவியல் ,

Capturing all of light's data in one snapshot

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IMAGE: A new $7.5 million Department of Defense grant is seeking to build a super camera that combines multiple metasurfaces that together can extract almost every bit of information that light.
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Credit: Mark Brongersma, Stanford
DURHAM, N.C. - Engineers at Duke University are leading a nationwide effort to develop a camera that takes pictures worth not just a thousand words, but an entire encyclopedia.
Funded by a five-year, $7.5 million grant through the Department of Defense s Multidisciplinary University Research Initiative (MURI) competition, the team will develop a super camera that captures just about every type of information that light can carry, such as polarization, depth, phase, coherence and incidence angle. The new camera will also use edge computing and hardware acceleration technologies to process the vast amount of information it captures within the device in real-time. ....

United Kingdom , New York , United States , Maiken Mikkelsen , Nader Engheta , H Nedwill Ramsey , David Miller , Federico Capasso , Andrea Al , Mark Brongersma , Daniele Faccio , Elizabethh Barton , Robertl Wallace , Albert Polman , Harry Atwater , City College Of New York , Department Of Defense Multidisciplinary University Research Initiative , Photonics Initiative , University Of Glasgow , City University Of New York , Engineers At Duke University , California Institute Of Technology , Science Research Center , Edwardl Ginzton Laboratory , Harvard University , University Of Pennsylvania ,