Category Technology/Electronics

Smart Lighting system based on Quantum Dots more accurately reproduces Daylight

 A system architecture and design procedure of multi-primary coloured lighting system with patterned QD-LEDs.

Researchers have designed smart, colour-controllable whitelight devices from quantum dots – tiny semiconductors just a few billionths of a metre in size – which are more efficient and have better colour saturation than standard LEDs, and can dynamically reproduce daylight conditions in a single light.

The researchers, from the University of Cambridge, designed the next-generation smart lighting system using a combination of nanotechnology, colour science, advanced computational methods, electronics and a unique fabrication process.

The team found that by using more than the three primary lighting colours used in typical LEDs, they were able to reproduce daylight more accu...

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Using Artificial Intelligence to Control Digital Manufacturing

a 3-d printer extrudes shapes
Caption: MIT researchers have trained a machine-learning model to monitor and adjust the 3D printing process in real-time.
Credits:Image: Courtesy of the researchers

Researchers train a machine-learning model to monitor and adjust the 3D printing process to correct errors in real-time. A new computer vision system watches the 3D printing process and adjusts velocity and printing path to avoid errors. Training the system in simulation, researchers avoid the costly trial-and-error associated with setting 3D printing parameters for new materials.

Scientists and engineers are constantly developing new materials with unique properties that can be used for 3D printing, but figuring out howto print with these materials can be a complex, costly conundrum.

Often, an expert operator must us...

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In DNA, scientists find solution to building Superconductor that could Transform Technology

UVA's Edward H. Egelman, PhD, has been elected to the prestigious National Academy of Sciences.
UVA’s Edward H. Egelman, PhD, was elected to the prestigious National Academy of Sciences in recognition of his research accomplishments.

Scientists at the University of Virginia School of Medicine and their collaborators have used DNA to overcome a nearly insurmountable obstacle to engineer materials that would revolutionize electronics.

One possible outcome of such engineered materials could be superconductors, which have zero electrical resistance, allowing electrons to flow unimpeded i.e. they don’t lose energy and don’t create heat, unlike current means of electrical transmission...

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Nickelate Superconductors are Intrinsically Magnetic

A muon, center, spins like a top within the atomic lattice of a thin film of superconducting nickelate. These elementary particles can sense the magnetic field created by the spins of electrons up to a billionth of a meter away. By embedding muons in four nickelate compounds at the Paul Scherrer Institute in Switzerland, researchers at SLAC and Stanford discovered that the nickelates they tested host magnetic excitations whether they’re in their superconducting states or not – another clue in the long quest to understand how unconventional superconductors can conduct electric current with no loss. (Jennifer Fowlie/SLAC National Accelerator Laboratory)

Waves of magnetic excitation sweep through this exciting new material whether it’s in superconducting mode or not — another possible...

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