Department of Mathematics
 Search | Help | Login | pdf version | printable version

Math @ Duke





.......................

.......................


Yunliang Yu, IT Senior Manager

Yunliang Yu

Open source is an investment in the future.

FDS Motto: we serve and empower the faculty.

Contact Info:
Office Location:  029D Physics
Office Phone:  (919) 660-2803
Email Address:   send me a message
Web Page:   http://www.math.duke.edu/~yu

Office Hours:

12:01AM - 12:02AM every other day except today.
Not by appt :-)
Specialties:

Mathematics
Recent Publications

  1. Y. Yu, test 123 (March, 2010). [PNG, PDF]

Famous Sayings:
Your dream will come true, if you eat your soup.
    --- Angela Yu
Don't be a turkey; read a book.
    --- Christina Yu
Security = avoid "unexpected inputs for unintended results".
    --- moi
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

mathprograms.org, academicjobsonline.org, mathjobs.org, ShortURLs, sharedworkingplace.org, chinesecalligraphyandwoodcarving.

/. headline news :-)

  • Tesla Presses Its Case On Fuel Standards
    2015-08-03T09:01:00+00:00
    An anonymous reader writes: Tesla is preparing their case to leave federal mileage and emissions regulations intact, or make them even more strict. In addition, the company is fighting other car makers from loosening more stringent regulations in California. The WSJ reports: "Tougher regulations could benefit Tesla, while challenging other auto makers that make bigger profits on higher-margin trucks and sport-utility vehicles. Tesla's vice president of development, Dairmuid O'Connell, plans to argue to auto executives and other industry experts attending a conference on the northern tip of Michigan that car companies can meet regulations as currently written. 'We are about to hear a lot of rhetoric that Americans don't want to buy electric vehicles,' Mr. O'Connell said in an interview ahead of a Tuesday presentation in Traverse City, Mich. 'From an empirical standpoint, the [regulations] are very weak, eminently achievable and the only thing missing is the will to put compelling products on the road.'"

    Read more of this story at Slashdot.

  • Modding Community Putting HD Textures Into Resident Evil 4
    2015-08-03T06:03:00+00:00
    jones_supa writes: The Ultimate HD Edition of Resident Evil 4 does not fully adhere to its name, as terrain textures are actually not in high definition. A couple of fans called Cris and Albert are chipping in to help fix this deficiency. The pair is working for free to create the RE4 HD Project, a mod which is cleaning up the game's chunky textures and producing some nice and sharp screenshots. At present, it looks like the project is already about half complete, and an HD texture pack for the Village section of the game is available at the project website.

    Read more of this story at Slashdot.

  • Girls Catfish ISIS On Social Media For Travel Money
    2015-08-03T03:00:00+00:00
    MarkWhittington writes: Yahoo Travel reported that three women in Chechnya took ISIS for $3,300 before getting caught. They are now under investigation for Internet fraud, which seems to be illegal even when committed against the most fearsome terrorist army in modern times. The scam seems to be a combination of the Nigerian Prince con, in which a mark is fooled into giving the con artist large sums of money and catfishing, in which the mark strikes up an online romance with someone he thinks is an attractive woman (or man depending on the gender and preference of the mark.)

    Read more of this story at Slashdot.

  • Unicode Consortium Looks At Symbols For Allergies
    2015-08-03T00:03:00+00:00
    AmiMoJo writes: A proposal (PDF) submitted by a Google engineer to the Unicode Consortium asks that food allergies get their own emojis and be added to the standard. The proposal suggests the addition of peanuts, soybeans, buckwheat, sesame seeds, kiwi fruit, celery, lupin beans, mustard, tree nuts, eggs, milk products and gluten. According to TNW: "This proposal will take a little longer to become reality — it's still in very early stages and needs to be reviewed by the Unicode Consortium before it can move forward, but it'll be a great way for those with allergies to quickly express them."

    Read more of this story at Slashdot.

  • Research Scientists To Use Network Much Faster Than Internet
    2015-08-02T23:05:00+00:00
    nickweller writes with this story from the Times about the Pacific Research Platform, an ultra-high-speed fiber-optic research infrastructure that will link together dozens of top research institutions. The National Science Foundation has just awarded a five-year $5 million dollar grant for the project. The story reports:The network is meant to keep pace with the vast acceleration of data collection in fields such as physics, astronomy and genetics. It will not be directly connected to the Internet, but will make it possible to move data at speeds of 10 gigabits to 100 gigabits among 10 University of California campuses and 10 other universities and research institutions in several states, tens or hundreds of times faster than is typical now.

    Read more of this story at Slashdot.

  • Sociologist: Job Insecurity Is the New Normal
    2015-08-02T22:07:00+00:00
    Mr.Intel writes: Allison Pugh, professor of Sociology at University of Virginia, and author of The Tumbleweed Society: Working and Caring in an Age of Insecurity, says workers in the U.S. are caught up in a "one-way honor system," in which workers are beholden to employers. She says that the golden era when Americans could get a job, keep it, and expect to retire with an adequate pension are over. JP Morgan Chase has cut 20,000 from its workforce in the past 5 years, last year HP cut 34,000 jobs, and many others have announced layoffs. In this interview Pugh talks about the social effects of this "insecurity culture."

    Read more of this story at Slashdot.

  • Non-Invasive Spinal Cord Stimulation Gets Paralyzed Legs Moving Again
    2015-08-02T21:12:00+00:00
    schwit1 writes: A new technique called transcutaneous stimulation has allowed five men with complete motor paralysis regain the ability to move their legs voluntarily and produce step-like movements. The treatment requires no surgery and adds to prior work to help paralyzed people gain voluntary movement through electrical stimulation (one completed in 2011, the other in 2014). Gizmag reports: "The new treatment uses a technique called transcutaneous electrical nerve stimulation, which involves strategically placing electrodes on the skin of the lower back. While receiving stimulation, the men's legs were supported by braces that hung from the ceiling. At first their legs only moved involuntarily, if at all. But they soon found they could voluntarily extend the distance their legs moved during stimulation. They doubled their range of voluntary motion after four treatment sessions."

    Read more of this story at Slashdot.

  • DoD Ditches Open Source Medical Records System In $4.3B Contract
    2015-08-02T20:13:00+00:00
    dmr001 writes: The US Department of Defense opted not to use the Department of Veterans Affairs' open source VistA electronic health record system in its project to overhaul its legacy systems, instead opting for a consortium of Cerner, Leidos and Accenture. The initial $4.3 billion implementation is expected to be the first part of a $9 billion dollar project. The Under Secretary for Acquisition stated they wanted a system with minimum modifications and interoperability with private sector systems, though much of what passes for inter-vendor operability in the marketplace is more aspirational than operable. The DoD aims to start implementation at 8 sites in the Pacific Northwest by the end of 2016, noting that "legacy systems are eating us alive in terms of support and maintenance," consuming 95% of the Military Health Systems IT budget.

    Read more of this story at Slashdot.

  • China To Impose Export Control On High Tech Drones and Supercomputers
    2015-08-02T19:15:00+00:00
    hackingbear writes: Following similar hi-tech export restriction policies in the U.S. (or perhaps in response to the U.S. ban on China,) China will impose export control on some drones and high performance computers starting on August 15th, according to an announcement published on Friday by China's Ministry of Commerce and the General Administration of Customs. The ban includes (official documents in Chinese) drone that can take off in wind speed exceeding 46.4km/hour or can continuously fly for over 1 hour as well as electronic components specifically designed or modified for supercomputers with speed over 8 petaflops. Companies must acquire specific permits before exporting such items. Drones and supercomputers are the two areas where China is the leader or among the top players. China is using its rapidly expanding defense budget to make impressive advances in (military) drone technology, prompting some to worry that the United States' global dominance in the market could soon be challenged. The tightening of regulations comes two weeks after an incident in disputed Kashmir in which the Pakistani army claimed to have shot down an Indian "spy drone", reportedly Chinese-made. China's 33-petaflops Tianhe-2, currently the fastest supercomputer in the world, while still using Intel Xeon processors, makes use of the home-grown interconnect, arguably the most important component of modern supercomputers.

    Read more of this story at Slashdot.

  • Challenger, Columbia Wreckage On Public Display For First Time
    2015-08-02T18:18:00+00:00
    An anonymous reader writes: A new exhibit at Kennedy Space Center is letting the public see wreckage from the Challenger and Columbia shuttles after keeping it from view for decades. Two pieces of debris from each lost shuttle and personal reminders of the astronauts killed in the flights will be on display. The AP reports: " NASA's intent is to show how the astronauts lived, rather than how they died. As such, there are no pictures in the 'Forever Remembered' exhibit of Challenger breaking apart in the Florida sky nearly 30 years ago or Columbia debris raining down on Texas 12 years ago. Since the tragic re-entry, Columbia's scorched remains have been stashed in off-limits offices at the space center. But NASA had to pry open the underground tomb housing Challenger's pieces — a pair of abandoned missile silos at neighboring Cape Canaveral Air Force Station — to retrieve the section of fuselage now on display."

    Read more of this story at Slashdot.

  • Uber Invests $1 Billion In Indian Market
    2015-08-02T17:20:00+00:00
    New submitter keithlynpitts writes: Uber is looking to expand its services in India, and will invest $1 billion there in the next nine months. India is the second biggest market for Uber after the U.S. The company hopes their investment will help speed growth in the country, which is already at a staggering 40% every month. "We expect to hit over 1 million trips per day," said Amit Jain, president at Uber India.

    Read more of this story at Slashdot.

  • Lennart Poettering Announces the First Systemd Conference
    2015-08-02T16:23:00+00:00
    jones_supa writes: Lennart Poettering, the creator of the controversial init system and service manager for Linux-based operating systems has announced the first systemd conference. The systemd.conf will take place November 5-7, in Berlin, Germany. systemd developers and hackers, DevOps professionals, and Linux distribution packagers will be able to attend various workshops, as well as to collaborate with their fellow developers and plan the future of the project. Attendees will also be able to participate in an extended hackfest event, as well as numerous presentations held by important names in the systemd project, including Poettering himself.

    Read more of this story at Slashdot.

  • Epic Mega Bridge To Connect America With Russia Gets Closer To Reality
    2015-08-02T15:25:00+00:00
    Sepa Blackforesta writes: A plan for an epic bridge connecting Russia's easternmost border with Alaska's westernmost border could soon be a reality, as Russia seeks to partner with China. Sijutech reports: "If this mega bridge come to reality, it would be Planet Earth’s most epic mega-road trip ever. The plans have not been officially accepted since specific details of the highway still need to be discussed, including the large budget. Allegedly the plan will cost upwards in the trillions of dollars range."

    Read more of this story at Slashdot.

  • Hitchhiking Robot's Cross-Country Trip Ends In Philadelphia
    2015-08-02T14:28:00+00:00
    An anonymous reader writes: A hitchhiking robot that successfully traveled across Canada in 26 days last year and parts of Europe, has met its demise in Philly. Created as a "social experiment," hitchBOT started its journey in the U.S. in Marblehead, Massachusetts, on July 17 with its thumb raised up and tape wrapped around its head that read "San Francisco or bust." After about two weeks in the U.S., someone in Philadelphia damaged the robot beyond repair. "Sadly, sadly it's come to an end," said Frauke Zeller, one of its co-creators. The Independent reports: "The robot was designed to be a talking travel companion and could toss out factoids and carry limited conversation. A GPS in the robot tracked its location, and a camera randomly snapped photos about every 20 minutes to document its travels."

    Read more of this story at Slashdot.

  • New Telemetry Suggests Shot-Down Drone Was Higher Than Alleged
    2015-08-02T13:30:00+00:00
    AmiMoJo writes: The pilot of the drone shot down Sunday evening over a Kentucky property has now come forward with video seemingly showing that the drone wasn't nearly as close as the property owner made it out to be. The data also shows that it was well over 200 feet above the ground before the fatal shots fired. The shooter, meanwhile, continues to maintain that the drone flew 20 feet over a neighbour's house before ascending to "60 to 80 [feet] above me."

    Read more of this story at Slashdot.

 

dept@math.duke.edu
ph: 919.660.2800
fax: 919.660.2821

Mathematics Department
Duke University, Box 90320
Durham, NC 27708-0320