Science View - 2012/09/06

Sep. 6, Thu.
New Technologies Tackle Rare-earth Shortage
J-Innovators:Revolutionary Sewer Retrofitting Technology
This time, there are two Takumi: Hamao Yamashiro and Akira Imagawa
A way to refurbish dilapidated sewerage pipes without digging them up
Reporter Michelle Yamamoto checks out a model that demonstrates the pipe-refurbishing technique

J-Innovators:
Revolutionary Sewer Retrofitting Technology

Refurbishing and refitting dilapidated sewerage pipes without having to dig them up. Repairing these pipes while sewage is actually flowing through them. It sounds like a tall order, but we meet two Takumi, or innovators, who are up to the challenge. How do they do it? Here's a hint: a new pipe is built inside the old one. But if you want to find out more, you'll have to watch as Reporter Michelle Yamamoto gets all the details on this exciting innovation.
Science Watcher Katsuyuki Sakai
Navigator Rena Yamada and Katsuyuki Sakai

Science News Watch:
A Surgical Treatment for High Blood Pressure

Science Watcher Katsuyuki Sakai is interested in news of a surgical treatment for high blood pressure. A research group at the Hyogo College of Medicine burned away the renal nerves of a male patient with high blood pressure. The patient had not responded to drug treatments, but after some of his renal nerves were burned away, his blood pressure fell to normal. It sounds almost miraculous. Why did this happen? Believe it or not, although this is the first time this procedure was performed in Japan, it has already been performed many times in Europe, and its use may soon be spreading to other places.
A motor using a magnet that doesn't contain rare earths, part of a research project being led by Professor Satoshi Ogasawara and Associate Professor Masatsugu Takemoto, both of the Hokkaido University Graduate School
Glass polishing being done at a company that produces components used in LCD TVs

The Leading Edge:
New Technologies Tackle Rare-earth Shortage

Rare earths are essential to contemporary industry, including energy-efficient electrical appliances. Take neodymium, for example, one rare earth element. Neodymium magnets are used in the motors of devices like washing machines and hybrid cars. In 2009, China, which supplies more than 90% of the world's rare earths, briefly suspended rare earth exports. The shock that this gave to Japanese industry triggered new interest in developing alternative technologies to ones that use rare earths. We report on the research at the forefront of this burgeoning field.

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