Domain: postech.ac.kr
Stories and comments across the archive that link to postech.ac.kr.
Stories · 4
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Miniature Fuel Cell To Keep Drones Aloft For Over An Hour (gizmag.com)
Zothecula writes: Drones are being utilized in everything from parcel delivery to search and rescue, but their limited flight times are restricting their ability to travel great distances or stay for extended periods of time in the field. Simply adding more batteries, however, affects flight characteristics and reduces the load the drone can carry. To help solve this problem, researchers at the Pohang University of Science and Technology (Postech) have created a miniature fuel cell they claim not only provides enough energy to keep a drone in the sky for over an hour, but may well find applications in powering everything from smartphones to cars in the not-too-distant future. Developed by Professor Gyeong Man Choi and his Ph.D. student Kun Joong Kim at Postech, the new solid oxide fuel cell is claimed by the researchers to be the first to use porous stainless steel in combination with thin-film electrolyte, all brought together using a technique known as tape casting-lamination-cofiring. Allied with electrodes of low heat capacity, this amalgamation not only results in increased performance, but also in higher long-term durability. The Postech device generates power by converting hydrogen (in this case, "Wet" H2 gas comprising 97 percent H2 and 3 percent H2O mixture) supplied as fuel gas to the anode to create electricity. It does this through the use of a solid oxide material acting as the electrolyte that allows the conduction of negative oxygen ions from the cathode to the anode. These ions diffuse through the solid oxide electrolyte to the anode where they oxidize the fuel. This reaction produces electrons, which then flow through an external circuit to provide power. -
Slashback: Stapler, Interface, Gaming
Slashback tonight (read on below) has updates on next-generation aircraft, KDE user-interface improvements and suggestions, a special warning for those obsessed with Milton's stapler from Office Space, SmartFilter's attitude toward SourceForge, and more.You've got to admit it's getting better all the time. Gentu writes: "In parallel to the KDE 3.1-alpha release today, OSNews published an interesting article discussing a number of User Interface issues found on KDE 3. The article suggests a number of changes, some small, some pretty drastic. Towards the end of the two-part article, the author discusses the 'integration' problem found in today's X11 desktop environments, and how fixing this issue would bring Unix closer to average Joe's desktop."
Yes, you're allowed to have more than one friend. A NuKeFaN writes: "Following the article titled Are you a Friend of GNOME I wanted to point you out that the most used GPL'd software for the Web, PHP-Nuke, also has a similar page/system for their friends. It's a Club (MandrakeClub like) where you can be a member for a little monthly fee and you can get some extra benefits. You can access the Club area to know more about it. This can be, maybe, another example of how to get some money to fund a free software project, the matter is if we, as users, will support those project's developers this way? I think we can."
Wait, the scam was to take just a few pennies from everyone! MrBlue VT writes "In reference to the previous Slashdot article about the red Swingline Staplers, I click on the add to cart button on the Swingline website, and it pops open an ordering window with a 4 staplers added to the shopping cart. Ok, I think it's a little strange, but change the quantity back to 1, and hit continue to checkout. Next thing I know, I'm looking at an order form with all the text boxes filled out with somebody else's personal information. He's from Bellvue, WA apparently (I'm in Virginia). It also has his credit card number and expiration date!
This has to be the worst security I've ever seen in an online shopping site. The company who apparently provides the online shopping service for Swingline appears to be an outfit called SureSource.
I just wanted to let anyone who happened to order from them know about this. Your credit card info could very well be compromised."
Please fasten your belts. hondo77 submitted this follow-up to this article about next-generation aircraft, writing "Boeing says that their blended-wing aircraft will be ready for test flights in 2006. The article also has a picture of a 3% scale model. See, it doesn't look like the B-2 at all."
But thanks anyhow. flonker writes "Smartfilter no longer lists sourceforge.net! Link for those who want to see for themselves."
Great at stealing them, too. MrDingusMcGee writes "After the recent posting about a study suggesting that video games decrease brain activity, I thought it would be interesting to read the results of another study which has shown that video game players score better on a range of attention tasks (mirror here)done by Shawn Green at the University of Rochester Brain and Cognitive Sciences Department, and that this could possibly rate video game players as better drivers. Worth seeing the other side of the argument and having some validation for those hours of gaming."
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Curie Institute Challenges Patent On Breast Cancer
hysterion writes: "According to today's Libération, the Curie Institute is challenging a recent European patent which grants Utah's Myriad Genetics a de facto monopoly on genetic tests for breast cancer. The article (fish translation) quotes a Curie researcher: "Their patent is so vague that even using other techniques, one could be sued for infringement. (...) So European labs have to send all samples to Salt Lake City. This means that we risk losing our skills, our credits, and in the long term, any ability to do research. Meanwhile, Myriad overcharges 3.5 fold, and gets to build a nifty world wide database." The researchers complain about being prevented from improving the test so that it tracks a newly identified mutation." -
Norton Writes Linux Book
Kwon Soon Son wrote in to tell us that Peter Norton (of Utilities fame. Who amongst us hasn't logged many hours with them?) has written a book about Linux. And speaking of books (fun to plug the rewrite :) Slashdot will be doing nerd book reviews in the next few days, with links to Amazon.com, that you can buy books and we get some cash. Several cool books in the first batch too... if anyone has ideas of books worth reviewing that Linux users would dig, they should email Hemos with them.