Difference between revisions of "User:David Liu"

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==About Me==
 
==About Me==
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My name is David Liu. I am a freshman of [http://www.pratt.duke.edu/|Pratt School of Engineering], [http://www.duke.edu/ Duke Unverisity]from China.
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My name is David Liu. I am a freshman of [http://www.pratt.duke.edu/ Pratt School of Engineering], [http://www.duke.edu/ Duke University]from China.
  
 
==Name Pronumciation==
 
==Name Pronumciation==
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Just call me David if my Chinese name is too difficult to pronunce.
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Just call me David if my Chinese name is difficult to pronunce.
 
But if you fancy a try. My family name is Liu /lü/ and it goes up.
 
But if you fancy a try. My family name is Liu /lü/ and it goes up.
  
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==[http://pundit.pratt.duke.edu/wiki/Grand_Challenges_for_Engineering|Grand Challenges for Engineering] Articles==
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==[http://pundit.pratt.duke.edu/wiki/Grand_Challenges_for_Engineering/ Grand Challenges for Engineering] Articles==
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*[http://green.blogs.nytimes.com/2009/01/14/solar-manufacturing-not-so-sunny/|Solar Manufacturing: Not So Sunny] Kate Galbraith, New York Times,created 14 January 2009, accessed 19 January 2009
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*[http://green.blogs.nytimes.com/2009/01/14/solar-manufacturing-not-so-sunny/ Solar Manufacturing: Not So Sunny] Kate Galbraith, New York Times,created 14 January 2009, accessed 12 September 2011 (Make solar energy economical)
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Solar Manufacturing: Not So Sunny
 
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By KATE GALBRAITH
 
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Solar manufacturers, who once couldn’t keep up with demand, are now searching for customers. (Photo: David Maxwell for The New York Times)
 
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The recession has cast clouds over once fast-growing solar manufacturers.
 
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OptiSolar, based in California, is laying off close to half of its workers at what it had hoped would become a huge solar-panel plant near Sacramento.
 
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HelioVolt, a thin-film solar manufacturer headquartered in Austin, is also cutting jobs, as reportedly is SunEdison.
 
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Evergreen Solar, a solar manufacturer, announced that it would close down a pilot plant in Massachusetts as a cash-saving measure; it will incur a $25 million charge for writing off equipment. Most employees will be transferred to another Massachusetts factory, which is expanding.
 
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“From the manufacturers’ standpoint, it’s pretty serious,” said Bill Stewart, president of SolarCraft, a California installer, in a conversation with Green Inc. Until last summer, there were still shortages of solar modules (which in turn were due to shortages of the polysilicon material they are made from), so installers like SolarCraft sometimes had to badger manufacturers to make sure they would receive enough panels.
 
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Now, said Mr. Stewart, the situation is reversed, and manufacturers are calling installers to say, “‘Hey, do you need any product this month? Can I sell you a bit more?’”
 
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Mr. Stewart said that European solar markets have also slowed, which has helped loosen up supply.
 
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SolarCraft, he says, still has “a lot of buyers right now,” but the number would be even higher if there were more innovative loan programs. “A lot of people don’t want to mess with their home-equity lines of credit,” he said.
 
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USA Today reports that the price of rooftop solar systems is down by 8 to 10 percent since October, and could fall further.
 
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==Favorite Demonstration==
 
==Favorite Demonstration==
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My favorite demonstration in Matlab Help Navigator is the "Programming" section.
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It goes through from "Programming Fundamentals", "Data Analysis", to "Object-Oriented Programming". The instructions are very helpful, not only because they provide huge amount of information (like codes, commands), but also because they explain why we should use this specific kind of programming method, and how we can effectively carry it out. So the demo doesn't stay on the technique level; it actually looks deeper into the logic behind the programming methods, which really helps me a lot.

Latest revision as of 16:26, 23 September 2011

About Me

My name is David Liu. I am a freshman of Pratt School of Engineering, Duke Universityfrom China.

Name Pronumciation

Just call me David if my Chinese name is difficult to pronunce. But if you fancy a try. My family name is Liu /lü/ and it goes up.

Grand Challenges for Engineering Articles

Favorite Demonstration

My favorite demonstration in Matlab Help Navigator is the "Programming" section. It goes through from "Programming Fundamentals", "Data Analysis", to "Object-Oriented Programming". The instructions are very helpful, not only because they provide huge amount of information (like codes, commands), but also because they explain why we should use this specific kind of programming method, and how we can effectively carry it out. So the demo doesn't stay on the technique level; it actually looks deeper into the logic behind the programming methods, which really helps me a lot.

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