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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 :-)

  • GoPro Footage Gives You A Rocket's-Eye View Of Spaceflight
    2016-05-06T11:15:00+00:00
    Eloking quotes a report from Gizmag: Action cameras have been strapped to dogs, chainsaw-wielding drones and everything in between, but there's a new benchmark for homegrown heroes and their action-cam videos courtesy of UP Aerospace. Having strapped a GoPro HERO 4 to the outside of its SpaceLoft-10 sounding rocket, the company launched it into the thermosphere, gathering some footage that's simply out of this world along the way. The footage is incredible and begs the question: how did they fasten the cameras to a rocket traveling at 3,796 mph? You can watch the footage here on YouTube.

    Read more of this story at Slashdot.

  • AG Scores Victory In Bid To Shut Down Indian Point
    2016-05-06T09:30:00+00:00
    mdsolar quotes a report from The Journal News: Federal safety regulators used the wrong data to analyze the potential economic impacts of a severe accident at the Indian Point nuclear power plant, a panel of commissioners for the Nuclear Regulatory Commission ruled Wednesday. The ruling, which reversed an earlier finding, will force the NRC to conduct a fresh analysis of the costs of a devastating accident and cleanup at the nuclear power plant in Buchanan, 24 miles north of New York City. The decision was hailed by New York Attorney General Eric T. Schneiderman, whose office is spearheading the state's challenge to Indian Point's efforts to renew federal licenses for its two reactors. Schneiderman estimates that some 1.5 million workers would be needed in to take part in decontamination efforts in the event of a nuclear mishap, with cleanup costs surging as high as $1 trillion.

    Read more of this story at Slashdot.

  • SpaceX Successfully Lands Its Rocket On A Floating Drone Ship Again
    2016-05-06T07:00:00+00:00
    Early Friday morning, SpaceX successfully landed its Falcon 9 rocket on a drone ship at sea for the second time. The company has recovered the post-launch vehicle a total of three times, two of which involved the rocket landing on a floating drone ship in the Atlantic Ocean. Before the launch, the landing was deemed unlikely as the rocket would be "subject to extreme velocities and re-entry heating" in its attempt to launch a Japanese communications satellite into a geostationary transfer orbit high above Earth. Elon Musk tweeted: "Rocket reentry is a lot faster and hotter than last time, so odds of making it are maybe even, but we should learn a lot either way." As a result of the successful mission, Musk followed up with, "May need to increase size of rocket storage hangar." The first successful launch was in December, when the rocket landed at a ground-based spaceport in Cape Canaveral, Florida. The second landing occurred in April on a floating drone ship in the Atlantic Ocean.

    Read more of this story at Slashdot.

  • Finger-Tracking Tech Turns Your Arm Into A Touchpad
    2016-05-06T03:30:00+00:00
    New submitter Keys of Cars quotes a report from Gizmag: Smartwatches may be handy, but their tiny touchscreens can easily be obscured by your fingers as you're using them on the device. As a result, we've seen various attempts to move the control surface. One of the latest, Carnegie Mellon University's SkinTrack system, moves it onto your hand and lower arm. The strap of the smartwatch features multiple electrodes, which detects a ring that is worn on your "control finger" (on your non smartwatch-wearing arm) that emits a high-frequency electrical signal. When your finger, specifically the ring, approaches and/or touches the arm with the watch, the high-frequency electrical signal is propagated through the skin. It will work even if your skin is covered with clothing! The system is reportedly 99% accurate, and can locate touches with a mean error of 7.6mm. SkinTrack was used to control games, scroll through lists, zoom in and out of maps, draw pictures, and operate an onscreen number pad.

    Read more of this story at Slashdot.

  • Meet The Company That Poached The FBI's Entire Silk Road Investigation Team
    2016-05-06T01:50:00+00:00
    Patrick O'Neill quotes a report from The Daily Dot: The FBI team that brought down Silk Road has a new home. After headline-grabbing investigations, arrests, and prosecutions on some of America's highest-profile cybercriminals, five of U.S. law enforcement's most prized cybercrime aces have all left government service for greener pastures -- a titan consulting firm called Berkeley Research Group (BRG). BRG's newly hired gang of five includes former federal prosecutor Thomas Brown, as well as former FBI agents Christopher Tarbell, Thomas Kiernan, and Ilhwan Yum -- names that punctuated many of the biggest cybercrime stories of the last decade including Silk Road, LulzSec, Liberty Reserve, as well as the hacks of Citibank, PNC Bank, and the Rove Digital botnet; and the prosecution of Samarth Agrawal for stealing crucial code for high-frequency trading from the multinational, multibillion dollar bank Societe Generale. "Private industry provides a lot of opportunity," NYPD intelligence chief Thomas Galati told Congress earlier this year. "So I think the best people out there are working for private companies, and not for the government."

    Read more of this story at Slashdot.

  • India Plans To Spend $6 Billion On Creating New Forests
    2016-05-06T01:10:00+00:00
    The Narendra Modi government plans to spend $6.2 billion to create new forests through the Compensatory Afforestation Fund Bill, 2015, which has been passed by lawmakers in India's lower house this week. The bill aims to increase India's forest cover from 21.34% of the total land to 33%. Where does the money come from? It comes from private companies and various "other entities" who paid fees to the Indian government since 2006 for allowing them to set up projects on forest land. The bill proposes local state governments be provided 90% of the accumulated funds, with 10% left with the central government. "Our forest cover will dramatically increase and it will result in achieving our target 33% of tree cover and most importantly 2.5 billion tonne of carbon sink as we have indicated in our intended nationally determined contributions (INDC)," India's environmental minister, Prakash Javadekar said on May 3rd. Naturally, some experts are concerned with how appropriately the funds will be used, as well as how exactly the government will develop forests on alternate land. According to Quartz, "Since 1980, the environment ministry has approved the diversion of 1.29 million hectares of forestlands for non-forestry purposes, according to a study by CSE." India's comptroller and auditor general has expressed his dissatisfaction with the ministry's failure to grow forests on alternative land in a report in 2013.

    Read more of this story at Slashdot.

  • Tesla Plans To Produce 500,000 Electric Cars In 2018, 1 Million In 2020
    2016-05-06T00:30:00+00:00
    "Tesla Motors Inc said it was stepping up production plans for its upcoming Model 3 mass-market sedan and would build a total of 500,000 all-electric vehicles in 2018, two years ahead of schedule, but warned that spending will ramp up in tandem," reports Reuters. Tesla said capital spending would rise about 50% more than originally planned this year, to around $2.25 billion. Producing 500,000 vehicles in 2018 will be no easy task, especially considering the company is only on track to deliver between 80,000 and 90,000 electric vehicles this year. In addition to producing 500,000 electric vehicles in 2018, Elon Musk also said the company expects to produce nearly 1 million vehicles in 2020. These are certainly ambitious goals, even for a company that had the 'biggest one-week launch of any product ever.'

    Read more of this story at Slashdot.

  • LAPD Hacked An iPhone 5s Before The FBI Hacked San Bernardino Terrorist's iPhone 5c
    2016-05-05T23:50:00+00:00
    According to recently released court papers, Los Angeles police investigators found a way to break into a locked iPhone 5s belonging to April Jace, the slain wife of "The Shield" actor Michael Jace. The detectives were able to bypass the security at around the same time period the FBI was demanding Apple unlock the iPhone 5c belonging to San Bernardino terrorist Syed Rizwan Farook. LAPD detective Connie Zych wrote on March 18, the department found a "forensic cellphone expert" who could "override the locked iPhone function," according to the search warrant. There's no mention of how the LAPD broke into the iPhone or what OS the iPhone was running (Note: iOS 8, which features improved encryption and security features, came out months after the killing). The information stored on the iPhone should help in the criminal case against Jace's husband, who is charged with the May 19, 2014, killing.

    Read more of this story at Slashdot.

  • Microsoft No Longer Allows Admins To Block Windows Store Access In Windows 10 Pro
    2016-05-05T23:18:00+00:00
    If you're an administrator, you will no longer be able to block Windows 10 Pro users on your watch from accessing the Windows Store. Mary Jo Foley reports for ZDNet: Up until a month ago, admins could use Group Policy to shut off employees' access to Windows Store if they were running Windows 10 Pro. Controlling this access is a requirement for some businesses. But last month, Microsoft changed that option, claiming that Store access was required for all versions of Windows 10 except Enterprise and Education "by design." Admins still can use AppLocker or Group Policy to block access to the Windows Store if their employees (or students) are running Enterprise or Education.

    Read more of this story at Slashdot.

  • SAP Partners With Apple To Expand iOS In The Enterprise
    2016-05-05T22:50:00+00:00
    SAP has announced a partnership with Apple to bring iOS to SAP's enterprise customers. Steve Lucas, president for SAP's Digital Enterprise Platform, says SAP is firmly an enterprise company which has built a cloud platform to access all the software it has developed -- ERP product, SuccessFactors or Concur. With the new deal, Apple hopes to take a bite out of Microsoft's territory by selling hardware to companies who traditionally shop for PCs. In an effort to push iOS to its customers, SAP has announced a new set of apps for the iPhone and iPad that take advantage of data stored in SAP tools. They're providing an iOS SDK for its in-memory database product, SAP HANA, to allow organizations to build their own customized apps using the data stored in HANA. SAP is also offering SAP Academy for iOS as a way for SAP programmers to learn to use the HANA iOS SDK. The deal between Apple and SAP echoes the deal from a couple years ago between Apple and IBM.

    Read more of this story at Slashdot.

  • As Robots Eat Our Jobs, Fed Should 'Drop the Money From Helicopters,' Says Bill Gross
    2016-05-05T22:10:00+00:00
    As technology continues to change the world -- and kill many jobs -- it may soon change the very nature of what is considered work, said Bill Gross, a renowned American financial manager in his recently released investment outlook. Gross says that in a year or so we will need to start guaranteeing income for everyone. Gross, added that the current crop of national leaders is hopelessly behind the curve, leaving it to central bankers to fix the mess. "Our economy has changed, but voters and their elected representatives don't seem to know what's really wrong," he writes. "They shout: (1) build a wall, (2) balance the budget, (3) foot the bill for college, or (4) make free trade less free. "That will fix it" they discordantly proclaim, and after November's election some unlucky soul may do one or more of the above in an effort to make things better. Similar battles are being fought everywhere." The Sydney Morning Herald reports: Central bank "helicopter money" will avoid a long recession that looms as millions of millennials face losing their jobs to robot technology, Gross says. In news that is sure to depress anyone under the age of 30, Gross says that while presidential hopefuls in the US spout mantras about how they are going to spur growth, none are addressing the reality of the future: that robots and technology are going to render "millions" of jobs redundant. "Virtually every industry in existence is likely to become less labour-intensive in future years as new technology is assimilated into existing business models," Gross writes. Transport is a visible example of this transition and millions of truck and taxi drivers will be out of a job in the next 10 to 15 years due to driverless vehicles, he says. "We should spend money where it's needed most -- our collapsing infrastructure for instance, health care for an aging generation and perhaps on a revolutionary new idea called UBI -- Universal Basic Income."

    Read more of this story at Slashdot.

  • Unity 8 And Snaps Are Conquering The Ubuntu Desktop After Ubuntu 16.10
    2016-05-05T21:30:00+00:00
    prisoninmate writes: Today is the last day of the Ubuntu Online Summit 2016, and the Ubuntu developers discussed the future of the Ubuntu Desktop for Ubuntu 16.10 (Yakkety Yak) and beyond. It looks like Snaps (Snappy) and Unity 8 with Mir are slowly conquering the Ubuntu Desktop, at least according to Canonical's Will Cooke, Ubuntu Desktop Manager. Work has already begun on pushing these new and modern technologies to the Ubuntu Desktop, as Ubuntu 16.04 LTS has just received support for installing Snaps from the Ubuntu Snappy Store. Canonical's Will Cooke has mentioned the fact that the Unity 7 desktop enters its twilight years, which means that it gets fewer features and it's being reduced to only critical and OEM work. This is because Unity 8 desktop is getting all the attention now, and it will become the default desktop session somewhere after Ubuntu 16.10 (Yakkety Yak).

    Read more of this story at Slashdot.

  • FDA To Regulate E-Cigarettes Like Tobacco
    2016-05-05T20:50:00+00:00
    An anonymous reader writes: Electronic cigarettes (e-cigarettes) have been all the rage lately, as many claim they are healthier than traditional tobacco cigarettes. Since they are so relatively new to the market, the government hasn't been able to effectively study them and determine whether or not they should be regulated like traditional cigarettes and smokeless tobacco -- until now. The FDA has released their final rule Thursday, broadening the definition of tobacco products to include e-cigarettes, hookahs, pipe tobacco, premium cigars, little cigars and other products. "Going forward, the FDA will be able to review new tobacco products not yet on the market, help prevent misleading claims by tobacco product manufacturers, evaluate the ingredients of tobacco products and how they are made, and communicate the potential risks of tobacco products," the agency said. The new rule will go into effect immediately. According to CDC data from 2014, e-cigarette use among adults has gone up about 12.6%. People under the age of 18 will no longer be able to buy these products with the new regulations, and the products will be required to be sold in child-resistant packaging. In addition, the government will now be able to have a say in what goes into the products. Previously, there was no law mandating that manufacturers tell you what you are inhaling when trying their products.

    Read more of this story at Slashdot.

  • After ISIS, Americans Fear Cyberattacks Most
    2016-05-05T20:10:00+00:00
    An anonymous reader writes: According to Pew Research Center, there's an increasingly growing fear among Americans about cyberattacks. In fact, it's the second most feared entity to them, the first being ISIS. The terrorist group is scary by design, relying on propaganda videos and ultra-violent attacks to spread fear and project power. But coming in second right after the terrorist group was the prospect of country-on-country cyberwar: a digital raid to steal another government's information, for example, or a large-scale attack on a nation's electrical grid. Cyberattacks are a major threat in the minds of 72 percent of Americans, and a minor threat to another 22 percent. Cyberwar hasn't been on Americans' minds to this degree since 2013. That year, for the first time, Americans ranked cyberattacks as a top threat, placing it second after the threat from Islamic extremists like al-Qaeda. But in the intervening years, Americans turned their attention to nuclear threats.

    Read more of this story at Slashdot.

  • Cops Deploy StingRay Anti-Terror Tech Against $50 Chicken-Wing Thief
    2016-05-05T19:30:00+00:00
    An anonymous reader shares a report on The Register: Police in Maryland, U.S., used controversial cellphone-tracking technology intended only for the most serious crimes to track down a man who stole $50 of chicken wings. Police in Annapolis -- an hour's drive from the heart of government in Washington DC -- used a StingRay cell tower simulator in an effort to find the location of a man who had earlier robbed a Pizza Boli employee of 15 chicken wings and three sandwiches. Total worth: $56.77. In that case, according to the police log, a court order was sought and received but in many other cases across the United States, the technology is being used with minimal oversight, despite the fact it is only supposed to be used in the most serious cases such as terrorism.Annapolis police never found the thief.

    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