UK team moots better supercaps

Semi-interpenetrating polymer networks could improve supercapacitors, according to Queen Mary University of London (QMUL) and the University of Cambridge, who are seeking alternatives to carbon supercapacitors. “Pseudocapacitance is a property of polymer and composite supercapacitors that allows ions to enter inside the material and thus pack much more charge than carbon ones that mostly store ...

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Don’t hold your breath for lithium-air cells

Rechargeable lithium air batteries could save a lot of weight, if only they could be made to work. Now MIT has proved another hopeful additive is flawed, although the understanding developed could help in the search for others. Like zinc-air non-rechargeables, the idea is to replace one energy-containing electrode material with oxygen, which is breathed ...

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Electro-colour-changing ink is printed with water

Georgia Tech chemists have developed water-based electrochromic film inks for colour-change applications such as auto-dimming rear-view car mirrors. “There were some hurdles to pulling it off,” said GaTech. “The finished product had to electrically operate comparable to films that are applied in an organic solvent, and also be water-resistant in spite of the water-based production.” ...

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Clean green graphene separation

Clean graphene be set free without damage to its growth substrate, using only simple safe chemicals, according to researchers at the University of Illinois at Urbana-Champaign – aiming to release it for use in flexible transparent electronics. The 2D material is synthesised using chemical vapour deposition onto a metal substrate, typically copper foil. “One particularly ...

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NI adds PCI Express Gen 3 remote control

National Instruments has announced a family of PXI remote control and bus extension modules with PCI Express Gen 3 connectivity. “PCI Express Gen 3 technology delivers increased bandwidth that is critical for data intensive applications like 5G cellular research, RF record and playback, and high-channel-count data acquisition,” said the firm. “This family augments our existing ...

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LDOs drop

Toshiba has announced a family of CMOS low drop-out (LDO) regulators. Called TCR4DG, they have an on-off control input and come in in fixed output voltages between 1.0 and 4.5V, at up to 420mA. Typical drop-out is 193mV (420mA, 3.3Vout). Low output noise voltage is claimed, and as befitting a Japanese company, the claim is ...

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Ginni’s Goodbye

In her memo to IBM staff explaining her resignation  from the President’s Forum following the Charlottesville disaster, IBM CEO  Ginni Rometty says: “In the past week, we have seen and heard of public events and statements that run counter to our values as a country and a company.” “IBM has long said, and more importantly, ...

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The 60Gbps kiss

Samsung and Hon Hai/Foxconn are backing Keyssa, the 60GHZ wireless start-up promoting ‘Kiss Connectivity’. Kiss Connectivity delivers 6Gbps wireless data transfer when two devices are near to eachother. Samsung and Hon Hai are interested in the technology for smartphones. Intel has already worked with Keyssa on using the technology for laptops. Keyssa has so far ...

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Qualcomm boosts machine learning capability by buying Scyfer

Qualcomm has bought Amsterdam University affiliate Scyfer, a machine learning specialist. Scyfer is into computer vision, computer-aided healthcare, computer-human interaction and AI-based financial features all areas which Apple is trying to incorporate in the IPhone. Qualcomm’s strategy is to deliver equivalent features to the Android community via its SnapDragon APs. “Our current products now support ...

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