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Microsoft Research wants to pit you against virtual swimmers
You don't need other people to swim, but a Microsoft Research project can spice up your swimming routine by putting you in or pitting you against virtual teams. Redmond's research division is working with a team of researchers from Korea Advanced Institute of Science and Technology (KAIST) to develop SwimTrain. It's a system consisting of an app, a waterproof case for your smartphone and a pair of underwater headphones that provides sensory/auditory feedback. SwimTrain puts you in a team of three swimmers -- if you're competing, it tells you how you're doing against your two virtual opponents. If you're in the same team, it helps you maintain your strokes so you can keep up with your virtual teammates.
Wirelessly-charged electric buses start public route in South Korea
Wireless charging might seem perfectly suited for smartphones and tablets, but the city of Gumi, South Korea is putting the tech to use with something a little larger: buses. A pair of Online Electric Vehicle (OLEV) motorcoaches, which recharge by driving over specially-equipped asphalt, are now running a public transportation route in the city, and it's said to be the first network of its kind open for regular use. Rather than stopping periodically to jack in, coils on the coaches' underside pick up power through an electromagnetic field created by road-embedded wires. Currently, the vehicles have a roundtrip journey of 24km (roughly 15 miles) when completing their stops. Since the system operates so long as 5 to 15 percent of the path is electrified, there's no need to rely on a completely rigged-up highway. What's more, the solution is only triggered by passing OLEVs, which means that normal cars can share the same street. If this all sounds familiar, that's because the Korea Advanced Institute of Science and Technology has been hammering away at the technology for several years. Now that it's made it this far, the city has plans to add ten more buses to its fleet by 2015.
Korean bendy memory could make plenty of trendy tech
Flexible displays aren't much good unless there's flexible memory alongside. It's been attempted before, but bending memory pushes the individual transistors so close that they begin to interfere with one another -- causing degradation and shortening the device lifespan to just a single day. The Korea Advanced Institute of Science and Technology (KAIST) has solved the problem by pairing transistors with memristors, which are immune to such annoyances. By fixing both inside a flexible substrate, you can push them as near as you like without any electo-radiation spanners jamming up the works. This also means that the flexible RRAM behaves just like flash memory; maybe in the future it won't just be antennas sewn into our clothes.
Flexible batteries get the graphene treatment, could be cheaper than other bendy batts
We've been talking about flexible batteries for years now, but a team of Korean researchers have presented a new solution to bendable energy sources that is not only more powerful than standard lithium-ion batteries, but also potentially cheaper to produce than its malleable predecessors -- and unsurprisingly, everyone's favorite wonder material, graphene, is at the heart of the innovation. The rechargeable battery contains a vanadium-oxide cathode, grown on a sheet of graphene paper, an unidentified separator, and an anode made of lithium-coated graphene. According to the folks behind the new power source, it sports higher energy and power density, as well as a better cycle life than the literally stiff competition. Similar advances have also out-performed rigid lithium-ion batteries, but have enlisted carbon nanotubes, a material more expensive to produce than graphene. Of course, like all technological advances, we won't be seeing these things for years, if not decades, so you might as well get used to ye olde standard bearer.
Korea starts testing 'recharging road,' might make it part of its public transport system
Time to set aside the chains of worry that have prevented us from jumping on the electric bandwagon -- Korean researchers have figured out a way to make us forget all about charging stations and cruising ranges with their magnetically recharging road. The Online Electric Vehicle (OLEV) you see here went into service yesterday and can now be found towing three bus-loads of tourists around a Seoul amusement park. It operates on a battery five times smaller than conventional EV juice packs and can collect its power through non-contact magnetic transmission from the recharging strips in the ground. We're also told running costs for this system are a third of what a typical EV would require, and should it prove successful and find itself expanded to the public transport system, only about 20 percent of bus routes would need to be electrified -- at bus stops, crossroads and the like -- with the rest being covered by the power stored inside the OLEV. Here's to hoping it all works out.
Flux capacitors sidelined as surface plasmons called upon to increase OLED efficiency
The surface science geeks out there already know that surface plasmons have enjoyed use in spectroscopic fluorescence measurements, but that's about as exciting as chamomile tea at a narcolepsy convention. However, those same surface plasmons have been used by Korean researchers to increase OLED efficiency by 75-percent while also increasing intensity twofold -- and that gets our attention. Note we said "researchers," though; the results were obtained with silver nanoparticles under high vacuum conditions -- in other words, a surface science lab. Although the word is that this technique can be used for flexible OLEDs, we won't be holding our breaths. Heck, at this point, we'd settle for relatively inefficient, inflexible, affordable OLEDs somewhere north of 20-inches.
Korean scientists create transparent memory chip... or so they tell us
Researchers at the Korea Advanced Institute of Science and Technology claim to have created a see-through non-volatile memory chip based on resistive random-access memory (RRAM) technology. Made with transparent oxide film and electrodes on clear glass or plastic circuit boards, the group believes commercial production could begin in 3 to 4 years and could be cheaply manufactured (current backers of RRAM include Fujitsu, Sharp, Samsung and others). They're hopeful the new technology will pave the way for transparent devices such as monitors and televisions. No images of the transparent chip have been published -- but they're not much to look at, anyway.[Via cellular-news]
Korean researchers build first eight-nanometer NAND chip
Reports of advances in memory storage densities aren't all that surprising anymore -- after all, storage devices have continually gotten both smaller and more capacious since IBM kicked out the first hard drive in 1956 -- but it's still nice to learn that the NAND flash used in our DAPs, cellphones, and soon laptops and desktops will break the terabyte barrier within the next decade. Researchers at the Korea Advanced Institute of Science and Technology (KAIST) and the National Nano Fab Center are claiming success in building the world's first NAND flash chip using an 8nm fabrication process, which could eventually lead to capacities as large as one terabyte in a package 1/25th the size of Samsung's 40nm 32GB unit. The breakthrough was realized by merging nanowires with silicon-oxide-nitride-oxide-silicon technology, and although it might seem like huge iPods are right around the corner, the research team still faces problems such as shrinking the area where data is saved. In other words, your gear isn't out of date quite yet, but you can rest assured that it will be soon. [Via China View]
