Tag Archives: NorthCarolinaStateUniversity

Atom-thin water layers may lead to faster electric cars

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So many battery breakthroughs focus on longer battery life (and for good reason), but what about the speed of delivering that energy? That's what North Carolina State University researchers want to solve. They've produced a material, crystalline tu...

NC State develops personalized web search without the usual server strain

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NC State develops extraefficient contextual web search

The notion of personalized, contextually aware search is nothing new, but it can put a tremendous strain on servers by asking for a lot of data at once. NC State has developed a search technique that could ease that burden. Its code prioritizes results based solely on the "ambient query context," or the concepts related to a person's recent search history. Look for politicians, for example, and a search for Ford is more likely to bring up Gerald Ford than the car company. By focusing on just a fraction of a user's search habits, the university can customize results using far fewer processor cycles: while a test server could only handle 17 active searchers with an old approach, it can manage 2,900 with the new method. The query engine won't be confined to the lab, either. NC State tells us that a community-driven search beta is due within several months, and there are plans to commercialize the technology in the long run.

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Smile, and JavaTutor’s AI knows when you’re learning online

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Smile, and JavaTutor's AI knows when you're learning

College-age kids these days are pretty good at a few things: selfies, social oversharing and staring into screens. But can you leverage that self-obsession into a mechanism for learning? The mad scientists at North Carolina State University think so and they've got a program to prove it. Dubbed JavaTutor, the software's aimed at teaching our future workforce the basics of computer science. And it does this by tracking facial expressions -- using the Computer Expressions Recognition Toolbox, or CERT, as its base -- during online tutorial sessions. Frown and the AI knows you're frustrated; concentrate intently and the same automated emotion detection applies. So, what's the end sum of all this? Well, it seems the research team wants to gauge the effectiveness of online courses and use the cultivated feedback to better tailor the next iteration of the JavaTutor system. But the greater takeaway here, folks, is that at NCSU, online tutoring learns you!

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Source: North Carolina State University

Mad scientists turn roaches into cyborgs, control them with Kinect, laugh at nature

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Mad scientists turn roaches into cyborgs, control them with Kinect, laugh at nature

We'd love to tell you that the researchers at North Carolina State University aren't monsters who implant circuits on living things so that those living things do their bidding, but we'd be lying. They totally do that, roaches are their primary victim, and now they're using Microsoft's Kinect to help them control the insects. Sure, why not!

As Dr. Alper Bozkurt of NCSU says in today's new release, "Our goal is to be able to guide these roaches as efficiently as possible, and our work with Kinect is helping us do that." Apparently the researchers are employing Kinect for data collection as well, determining how effectively the cyborg survivors respond to electrical impulse-motivated control. They say the end goal is to use the partially mechanized arthropods to, "explore and map disaster sites." For now, there's some very weird stuff happening in North Carolina. Head below for a video of the roaches in action.

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Source: North Carolina State University

Researchers develop algorithm to protect networks from cyber attacks

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DNP Researchers develop algorithm to protect networks from cyber attacks

Amidst increasing concern about cybersecurity, researchers at North Carolina State University have taken one step closer to guarding America's infrastructure from Cylon attack. Well, almost. Dr. Mo-Yuen Chow and Ph.D candidate Wente Zeng have developed an algorithm that detects cyber attacks aimed at distributed network control systems (D-NCSs), which differ from their more vulnerable counterparts in that they don't rely on a centralized brain to coordinate the network's activities. Essentially, then, D-NCSs are nervous systems comprised of several mini-brains working together. In the event of a cyber attack, the algorithm isolates the infected brain before the contamination can spread across the network's pathways. This software solution will be a good first line of defense when vengeful A.I. inevitably rises up in revolt. In the words of Admiral William Adama, so say we all.

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Source: North Carolina State University (PDF)

NC State builds stretchable wires from liquid metal, keeps headphones humming (video)

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NC State builds stretchable wires from liquid metal, keeps headphones humming video

More than a few of us have had that moment of panic when our headphone cords catch on an object and cut the listening short -- sometimes permanently. Researchers at North Carolina State University could help mitigate those minor musical catastrophes with wiring that stretches up to eight times its normal length. The method fills an elastic polymer tube with a liquid gallium and indium alloy that delivers the electricity. By keeping the materials separate, unlike many past attempts, the solution promises the best of both worlds: the conduction we need, and the tolerance for tugs that we want. NC State already has an eye on stretchable headphone cords, as you'll see in the video after the break, but it also sees advantages for electronic textiles that could endure further abuse. As long as the team can eventually solve a problem with leakage when there's a complete break, we'll be glad enough to leave one of our common audio mishaps in the past.

Continue reading NC State builds stretchable wires from liquid metal, keeps headphones humming (video)

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Source: Wiley Online Library

Android 4.2 App Verification Service tested, found no substitute for full anti-malware tools

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Android 42 App Verification Service tested, found no substitute for dedicated antimalware tools

Google's App Verification Service is a quiet addition to Android 4.2, but potentially game-changing: it promises malware checks for any installable Android app, whether it comes from a Bouncer-verified Google Play or a website lurking in the shadows. NC State University Associate Professior Xuxian Jiang doesn't want to simply accept the claim at face value, though. He just pitted the service against 10 anti-malware apps to gauge its effectiveness at stopping a wide range of rogue code. The short summary? Don't quit your day job, Google. Among 1,260 samples, the App Verification Service caught 193 instances, or 15.32 percent -- well below the 50 percent of its closest challenger, and nowhere near the perfect scores of two apps. According to the professor, Google's shortcoming mostly comes from a relatively skin-deep routine that checks the SHA-1 value and install package name, not underlying code that's tougher to change. Android malware isn't a serious enough issue for us to be worried at present, but nor would we lean on the App Verification Service as our only safety net.

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Source: NC State University

NC State nanoflowers can boost battery and solar cell capacity, make great prom accessories

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NC State crafts nanoflowers that boost battery and solar cell capacity, would make great prom accessories

We see a lot of sleek-looking technology pass through our doors, but it's rare that the inventions could be called beautiful by those who aren't immersed in the gadget world. We'd venture that North Carolina State University might have crossed the divide by creating an energy storage technology that's both practical and genuinely pretty. Its technology vaporizes germanium sulfide and cools it into 20-30 nanometer layers that, as they're combined, turn into nanoflowers: elegant structures that might look like the carnation on a prom dress or tuxedo, but are really energy storage cells with much more capacity than traditional cells occupying the same area. The floral patterns could lead to longer-lived supercapacitors and lithium-ion batteries, and the germanium sulfide is both cheap and clean enough that it could lead to very efficient solar cells that are more environmentally responsible. As always, there's no definite timetable for when (and if) NC State's technology might be commercialized -- so call someone's bluff if they promise you a nanoflower bouquet.

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NC State nanoflowers can boost battery and solar cell capacity, make great prom accessories originally appeared on Engadget on Thu, 11 Oct 2012 20:37:00 EDT. Please see our terms for use of feeds.

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Alt-week 9.8.12: Moon farming, self powered health monitors and bringing a 50,000 year-old girl to life

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Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days.

Altweek 9812 Moon farming, self powered health monitors and bringing a 50,000 yearold girl to life

Some weeks things get a little science heavy, sometimes it's a little on their weird side, and there's usually a bit of space travel involved, but these week's trend seems to be "mind-blowing." Want to grow carrots on the Moon? We got you covered. How about bringing a 50,000 year-old ancient human back to life? Sure, no biggie. Oh but what about a solar eruption that reaches some half a million miles in height. We've got the video. No, really we have. Mind blown? This is alt-week.

Continue reading Alt-week 9.8.12: Moon farming, self powered health monitors and bringing a 50,000 year-old girl to life

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Alt-week 9.8.12: Moon farming, self powered health monitors and bringing a 50,000 year-old girl to life originally appeared on Engadget on Sat, 08 Sep 2012 17:30:00 EDT. Please see our terms for use of feeds.

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Researchers take full control of cockroach’s movement, turn it into a wireless sensor

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DNP Cockroaches

Built-in power supply? Check. Ability to survive anything? Check. Easy to control? Okay, anyone who's had a cockroach as an uninvited houseguest knows that's not the case. So, rather than re-inventing the biological wheel with a robotic version, North Carolina State university researchers have figured out a way to remotely control a real Madagascar hissing cockroach. They used an off-the-shelf microcontroller to tap in to the roach's antennae and abdomen, then sent commands that fooled the insect into thinking danger was near, or that an object was blocking it. That let the scientists wirelessly prod the insect into action, then guide it precisely along a curved path, as shown in the video below the break. The addition of a sensor could allow the insects to one day perform tasks, liking searching for trapped disaster victims -- something to think about the next time you put a shoe to one.

Continue reading Researchers take full control of cockroach's movement, turn it into a wireless sensor

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Researchers take full control of cockroach's movement, turn it into a wireless sensor originally appeared on Engadget on Thu, 06 Sep 2012 11:21:00 EDT. Please see our terms for use of feeds.

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