Ruan
The ruan is a Chinese plucked string instrument. It is a lute with a fretted neck, a circular body, and four strings. Its strings were formerly made of silk but since the 20th century they have been made of steel. The modern ruan has 24 frets with 12 semitones on each string, which has greatly expanded its range from a previous 13 frets. The frets are commonly made of ivory. Or in recent times, metal mounted on wood. The metal frets produce a ighter tone as compared to the ivory frets.
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AVINGSDate: 2008-01-23 05:20:11
As oil prices push $100 a barrel, Dr. Roger Ruan at the University of Minnesota and many scientists around the world are racing to turn algae into a viable energy source. But they are having to compete for funds with larger-scale renewable energy projects, such as space solar power that David Kagan wrote about in his book Sunstroke.
Finance mat on
Date: 2008-01-23 05:20:11
"The advantages of algae include the fact that it grows much faster and in less space than conventional energy crops. An acre of corn can produce about 20 gallons of oil per year, Dr. Ruan said, compared with a possible 15,000 gallons of oil per acre of algae."
Financematic Joey
Date: 2008-01-23 05:20:11
ST. PAUL, Minn. - The 16 big flasks of bubbling bright green liquids in Roger Ruan's lab at the University of Minnesota are part of a new boom in renewable energy research.
Maike
Date: 2008-01-23 05:20:11
The 16 big flasks of bubbling bright green liquids in Roger Ruan's lab at the University of Minnesota are part of a new boom in renewable energy research.
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For the town in France, see Ruan, Loiret . For the town in Ireland, Ruan County Clare . For the surname in Chinese and Vietnamese, see Nguyễn . The ruan ( 阮 , pinyin : ruǎn ...
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for questions or comments about the Front arXiv contact page - for questions about downloading and submitting e-prints
Front: Author Y.Ruan
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