Yunliang Yu, Senior Systems Programmer
 Open source is an investment in the future.
FDS Motto: we serve and empower the faculty.
- Contact Info:
- Office Hours:
- 12:01AM - 12:02AM every other day excluding today.
Not by appt:)
- Specialties:
-
Mathematics
- Famous Sayings:
- Your dream will come true,
if you eat your soup.
--- Angela Yu - Don't be a turkey; read a book.
--- Christina Yu
- To learn and practice what is learned from time to time is pleasure, is it not? To have friends from afar is happiness, is it not? To be unperturbed when not appreciated by others is a gentleman, is it not?
--- Kungfu Zi - Better to light a candle than to curse the darkness.
--- Chinese Proverb 
facultydatabase.org, academicjobsonline.org,
mathjobs.org,
ShortURLs.
/. headline news :-)
- AOL Shuts Down CompuServe
2009-07-04T17:08:00+00:00
Oracle Goddess writes "After 30 years, CompuServe is all but dead, as AOL has pulled the plug on the once-great company. The original CompuServe service, first offered in 1979, provided its users with addresses such as 73402,3633 and was the first major online service. CompuServe users will be able to use their existing CompuServe Classic (as the service was renamed) addresses at no charge via a new e-mail system, but the software that the service was built on has been shut down. Tellingly, the current version of the service's client software, CompuServe for Windows NT 4.0.2, dates back to 1999."
Read more of this story at Slashdot.
- CrunchPad Will Be a 'Dead Simple Web Tablet'
2009-07-04T15:56:00+00:00
Hugh Pickens writes "TechCrunch's Michael Arrington has been talking for a year about building a touch-screen tablet for Web surfing and now it appears that the CrunchPad is close to becoming a reality. 'We're going to make some really big announcements,' said Arrington, who predicted a prototype would be ready for unveiling by the end of July. The purpose of the CrunchPad will be very simple: surfing the Web. Turn it on and up comes a browser — 'an Internet consumption device,' for reading, checking e-mail or watching video. The CrunchPad will not have a hard drive or keyboard and photos of the latest prototype show a device with a 12 inch screen. 'The screen is now flush with the case and we've decreased the overall thickness to about 18 mm,' writes Arrington. 'The case will be aluminum, which is more expensive than plastic but is sturdier and lets us shave a little more off the overall thickness of the device.' The CrunchPad boots directly into the browser with a Linux-based operating system and a WebKit-based browser. A video of an earlier CrunchPad prototype in action shows a device which, unlike the iPhone, runs flash. 'The next time we talk about the CrunchPad publicly will be at a special press and user event in July in Silicon Valley,' writes Arrington. 'We're full on. These prototypes are real.'"
Read more of this story at Slashdot.
- Jammie Thomas To Appeal $1.9 Million RIAA Verdict
2009-07-04T14:44:00+00:00
CNet reports that the lawyers representing Jammie Thomas-Rasset have confirmed she will be fighting the $1.9 million verdict handed down in her case against the RIAA. "The Recording Industry Association of America said on Monday that it had made a phone call to Sibley and law partner Kiwi Camara last week to ask whether Thomas-Rasset wanted to discuss a settlement. An RIAA representative said that its lawyers were told by Sibley that Thomas-Rasset wasn't interested in discussing any deal that required her to admit guilt or pay any money. ... 'She's not interested in settling,' attorney Joe Sibley said in a brief phone interview. 'She wants to take the issue up on appeal on the constitutionality of the damages. That's one of the main arguments — that the damages are disproportionate to any actual harm.'"
Read more of this story at Slashdot.
- Symantec Exec Warns Against Relying On Free Antivirus
2009-07-04T13:29:00+00:00
thefickler writes "Clearly, the rise of free antivirus is starting to worry Symantec, with one of their top executives warning consumers not to rely on free antivirus software (including Microsoft's Security Essentials). 'If you are only relying on free antivirus to offer you protection in this modern age, you are not getting the protection you need to be able to stay clean and have a reasonable chance of avoiding identity theft,' said David Hall, a Product Manager for Symantec. According to Hall, there is a widening gap between people's understanding of what protection they need and the threats they're actually facing."
Read more of this story at Slashdot.
- The Chemistry of Firework Displays
2009-07-04T12:16:00+00:00
Ponca City, We love you writes "David Ropeik writes at MSNBC that there's a lot more to making a basic firework display than putting a fuel source and an oxidizer together. Pyrotechnic chemists, who are trying to create bedazzlement instead of bang, don't want their work to explode, but to burn for a bit, so it gives a good visual show. To achieve the desired effect, the sizes of the particles of each ingredient have to be just right, and the ingredients have to be blended together just right. To slow down the burning, chemists use big grains of chemicals, in the range of 250 to 300 microns, and they don't blend the ingredients together very well, making it harder for the fuel and oxidizer to combine and burn, thus producing a longer and brighter effect. Surprisingly few emitters are used in pyrotechnics, and there are no commercially useful emitters in blue-green to emerald green in the 490-520 nm region. Energy from the fire in the basic fuel is transferred to the atoms of the colorant chemicals, exciting the electrons in those chemicals into a higher energy state. As they cool down, they move back to a lower state of energy, emitting light. So, you actually see the colors in fireworks as they're cooling down. To get the really tricky shapes, like stars or hearts, the colorant pellets are pasted on a piece of paper in the desired pattern. That paper is put in the middle of the shell with explosive charges above it, and below. When those charges go off, they burn up the paper, and send the ignited colorant pellets out in the same pattern they were in on the sheet of paper, spreading wider apart as they fly."
Read more of this story at Slashdot.
- Behind the First Secure Quantum Crypto Network
2009-07-04T09:11:00+00:00
schliz writes "Researchers behind the world's largest quantum encrypted network said the technology could secure business networks inside six years. The prototype Quantum Key Distribution network was built by the Secure Communication Based On Quantum Cryptography (SECOQC) group last year. It is described in a journal paper published by the Institute of Physics this week, which includes details on how it is based on the trusted-repeater paradigm."
Read more of this story at Slashdot.
- Generating Power From Ocean Buoys and Kites
2009-07-04T06:09:00+00:00
cheezitmike writes "Researchers at Oregon State University are testing a new type of wave-energy converter to generate electricity from ocean waves: 'Even when the ocean seems calm, swells are moving water up and down sufficiently to generate electricity. ... For decades the challenge has been to build a device that can withstand monster waves and gale-force winds, not to mention corrosive saltwater, seaweed, floating debris and curious marine mammals. ... In the most recent prototypes, a thick coil of copper wire is inside the first component, which is anchored to the seafloor. The second component is a magnet attached to a float that moves up and down freely with the waves. As the magnet is heaved by the waves, its magnetic field moves along the stationary coil of copper wire. This motion induces a current in the wire — electricity.'" Meanwhile, researchers at Stanford are working to design "turbine kites" that operate at 30,000 feet, where air currents flow much faster than they do close to the ground. Ken Caldeira, a Stanford associate professor, said, "If you tapped into 1% of the power in high-altitude winds, that would be enough to continuously power all civilization."
Read more of this story at Slashdot.
- UK Police Told To Use Wikipedia When Preparing For Court
2009-07-04T04:06:00+00:00
Half-pint HAL tips news of UK prosecution lawyers who are instructing police to study information on Wikipedia when preparing to give expert testimony in court. "Mike Finn, a weaponry specialist and expert witness in more than 100 cases, told industry magazine Police Review: 'There was one case in a Midlands force where police officers asked me to write a report about a martial art weapon. The material they gave me had been printed out from Wikipedia. The officer in charge told me he was advised by the CPS to use the website to find out about the weapon and he was about to present it in court. I looked at the information and some of it had substance and some of it was completely made up.' Mr. Finn, a former Metropolitan Police and City of London officer and Home Office adviser, added that he has heard of at least three other cases where officers from around the country have been advised by the CPS to look up evidence on Wikipedia."
Read more of this story at Slashdot.
- Hawking Says Humans Have Entered a New Stage of Evolution
2009-07-04T02:03:00+00:00
movesguy sends us to The Daily Galaxy for comments by Stephen Hawking about how humans are evolving in a different way than any species before us. Quoting: "'At first, evolution proceeded by natural selection, from random mutations. This Darwinian phase, lasted about three and a half billion years, and produced us, beings who developed language, to exchange information. I think it is legitimate to take a broader view, and include externally transmitted information, as well as DNA, in the evolution of the human race,' Hawking said. In the last ten thousand years the human species has been in what Hawking calls, 'an external transmission phase,' where the internal record of information, handed down to succeeding generations in DNA, has not changed significantly. 'But the external record, in books, and other long lasting forms of storage,' Hawking says, 'has grown enormously. Some people would use the term evolution only for the internally transmitted genetic material, and would object to it being applied to information handed down externally. But I think that is too narrow a view. We are more than just our genes.'"
Read more of this story at Slashdot.
- Amazon Wants Patent For Inserting Ads Into Books
2009-07-04T00:02:00+00:00
theodp writes "Three Amazon inventors set out to correct what they felt was a real problem: that 'out-of-print or rare books ... typically do not include advertisements ... the content is fixed and, therefore, has not been adapted to modern marketing.' Their solution is spelled out in newly-disclosed Amazon patent applications for On-Demand Generating E-Book Content with Advertising and Incorporating Advertising in On-Demand Generated Content. From the patent apps, here's what the future of reading may look like: 'For instance, if a restaurant is described on page 12, [then the advertising page], either on page 11 or page 13, may include advertisements about restaurants, wine, food, etc., which are related to restaurants and dining.' So, what would a delightfully-tacky-yet-unrefined Hooters ad do for your Hemingway experience?"
Read more of this story at Slashdot.
- Fake Tamiflu "Out-Spams Viagra On Web"
2009-07-03T23:11:00+00:00
cin62 writes "The number of Internet scammers offering fake versions of the anti-swine flu drug Tamiflu has surpassed those selling counterfeit Viagra, reports CNN. Since the H1N1 virus, also known as swine flu, was declared a global pandemic last month, there has been an increase in the number of Web sites and junk emails offering Tamiflu for sale. 'Every Web site that used to sell Viagra is now selling Tamiflu. We are pretty sure that the same people are making the Tamiflu as are making the Viagra,' said Director of Policy for the UK's Royal Pharmaceutical Society." This news fits in nicely with a report Wired ran a couple weeks ago about the hysteria behind H1N1.
Read more of this story at Slashdot.
- Source Code of Several Atari 7800 Games Released
2009-07-03T22:22:00+00:00
jadoon88 writes to share a series of old Atari 7800 games that have been unofficially open sourced. "Remember Dig Dug or Centipede or Robotron? They used to be favorites when Atari's 7800 series was still around. Since the era of those consoles is over, and a different world of interactive reality gaming has taken over, Atari has unofficially released source code of over 15 games for the coders and enthusiasts to admire the state-of-the-art (because this is what it was back then). During those times, nobody would have imagined in their wildest dreams the games that Atari's developers floated into the gaming thirsty market and instantly swept across continental boundaries. But things changed soon after that and a company once regarded as one of the most successful gaming console manufacturers and developers faded away in the pages of our technology's hall-of-fame."
Read more of this story at Slashdot.
- How To Get Your Program Professionally Marketed?
2009-07-03T21:30:00+00:00
one-man orchestra writes "I'm the sole programmer of a small, multi-platform, commercial audio program (a spectrogram editor). After over 6 months on the market, I realized that the program would never just sell itself, and that I need some real marketing done for it. Being a one-man orchestra is becoming increasingly difficult; I only can devote so much time to marketing, my skills in that department are lacking, and I'd much rather spend more time coding. Despite my lackluster part-time marketing effort, I still manage to make a modest living out of the sales. My logical assumption is that with someone competent taking care of that part, revenue could greatly scale up. But what's the right way to go about doing this? What type of people/company do I need to contact? What to expect? What to look out for?"
Read more of this story at Slashdot.
- Professor Gets 4 Years in Prison for Sharing Drone Plans With Students
2009-07-03T20:38:00+00:00
Hugh Pickens writes "Retired University of Tennessee Professor Dr. John Reece Roth has been sentenced to four years in prison after he allowed a Chinese graduate student to see sensitive information on Unmanned Air Vehicles (UAVs), also known as drones. In 2004, the company Roth helped found, Atmospheric Glow Technologies, won a US Air Force contract to develop a plasma actuator that could help reduce drag on the wings of drones, such as the ones the military uses. Under the contract, for which Roth was reportedly paid $6,000, he was prohibited from sharing sensitive data with foreign nationals. Despite warnings from his university's Export Control Officer, in 2006, Roth took a laptop containing sensitive plans with him on a lecture tour in China and also allowed graduate students Xin Dai of China and Sirous Nourgostar of Iran to work on the project. 'The illegal export of restricted military data represents a serious threat to national security,' says David Kris of the US Department of Justice. 'We know that foreign governments are actively seeking this information for their own military development. Today's sentence should serve as a warning to anyone who knowingly discloses restricted military data in violation of our laws.' During his trial, Roth testified that he was unaware that hiring the graduate students was a violation of his contract. 'This whole thing has not helped me, it has not helped the university,' said Roth. 'And it has probably not helped this country, either.'"
Read more of this story at Slashdot.
- Copyright Should Encourage Derivative Works
2009-07-03T19:47:00+00:00
Techdirt has an interesting look at copyright and the idea that an author is the originator of a new work. Instead, the piece suggests that all works are in some way based on the works of others (even our own copyright law), and the system should be much more encouraging of "remixing" work into new, unique experiences. "Friedman also points back to another recent post where he discusses the nature of content creation, based on a blog post by Rene Kita. In it, she points out that remixing and creating through collaboration and building on the works of others has always been the norm. It's what we do naturally. It's only in the last century or so, when we reached a means of recording, manufacturing and selling music — which was limited to just those with the machinery and capital to do it, that copyright was suddenly brought out to 'protect' such things."
Read more of this story at Slashdot.
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Mathematics Department