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IMAGE: Researchers developed a way to use overhead LED lighting and a smartphone to create 3D images of a small figurine. view more
Credit: Emma Le Francois, University of Strathclyde
WASHINGTON As LEDs replace traditional lighting systems, they bring more smart capabilities to everyday lighting. While you might use your smartphone to dim LED lighting at home, researchers have taken this further by tapping into dynamically controlled LEDs to create a simple illumination system for 3D imaging. Current video surveillance systems such as the ones used for public transport rely on cameras that provide only 2D information, said Emma Le Francois, a doctoral student in the research group led by Martin Dawson, Johannes Herrnsdorf and Michael Strain at the University of Strathclyde in the UK. Our new approach could be used to illuminate different indoor areas to allow better surveillance with 3D images, create a smart work area in a factory, or to give robots a m
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IMAGE: Rice University scientists extended their technique to produce graphene in a flash to tailor the properties of 2D dichalcogenides molybdenum disulfide and tungsten disulfide, quickly turning them into metastable metallics. view more
Credit: Tour Group/Rice University
HOUSTON - (Jan. 11, 2021) - Rice University scientists have extended their technique to produce graphene in a flash to tailor the properties of other 2D materials.
The labs of chemist James Tour and materials theorist Boris Yakobson reported in the American Chemical Society s
ACS Nano they have successfully flashed bulk amounts of 2D dichalcogenides, changing them from semiconductors to metallics.
Such materials are valuable for electronics, catalysis and as lubricants, among other applications.
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Scientists from the University of Bath have made a sustainable polymer using the second most abundant sugar in nature, xylose.
Not only does the new nature-inspired material reduce reliance on crude oil products, but its properties can also be easily controlled to make the material flexible or crystalline.
The researchers, from the University s Centre for Sustainable and Circular Technologies, report the polymer, from the polyether family, has a variety of applications, including as a building block for polyurethane, used in mattresses and shoe soles; as a bio-derived alternative to polyethylene glycol, a chemical widely used in bio-medicine; or to polyethylene oxide, sometimes used as electrolyte in batteries.
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IMAGE: The laser constructed by the team of Dr. Stepanenki can be tuned in a similar way to tuning the radio to catch your favorite station. Only with femtosecond precision. PhD. view more
Credit: IPC PAS/Grzegorz Krzyzewski
Would you like to capture a chemical transformation inside a cell live? Or maybe revolutionize microchips production by printing paths in a layer that has a thickness of just 100 nanometers? These and many other goals can now be achieved with the latest femtosecond laser created by a team of scientists led by Dr. Yuriy Stepanenko.
These days, there is a multitude of laser light sources. They each have their characteristics and different applications, such as observing stars, treating illnesses, and surface micro-machining. Our goal is to develop new ones, says Yuriy Stepanenko, head of the team of Ultrafast Laser Techniques at the Institute of Physical Chemistry of the Polish Academy of Sciences. We deal with sources that produce ultra
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IMAGE: (a) Schematic illustration of the K-ion full battery based on the as-prepared BCC and Prussian Blue (PB). (b) Charge-discharge profiles of the half battery and full battery. (c) Cycling stability. view more
Credit: @Science China Press
With the rapid development of smart portable electronics and electric vehicles, the consumption of lithium resource will increase dramatically and the cost of lithium-ion batteries (LIBs) may increase significantly in the future. In addition, the shortage (0.0017 wt% in the earth s crust) and uneven crustal distribution of lithium also limit its further development and application. As potassium (2.7 wt% in the earth s crust) have properties similar to lithium and abundant reserves. Therefore, as an alternative to LIBs, potassium ion batteries (PIBs) have become the focus of research. Potassium (2.92 V vs. standard hydrogen electrode) has a standard electrode potential closer to Li (3.04 V vs. SHE) than the standard electro