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Recent News and Articles on the Keywords: article date + pst + 0:00am  Related to the article below (Last Update: 7/8/2008)

trend tracking,
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By Josh Lowensohn ? March 6, 2008 11:22 AM PST 11 comments I've looked at a handful of price watching services, but this one has got to be the coolest. ...
meme trackers
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By Josh Lowensohn ? January 18, 2008 11:11 AM PST Post a comment A lot of folks would like a memetracker for Google Reader (myself included), and if the big ...
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CNET News, CA - Jun 12, 2008
10 am PST: Apple's special event today in Cupertino is about to get started, as a couple hundred people are gathered inside Apple's Town Hall auditorium at ...
COOL WEB 2.0 APPS FOR EVERYONE
CNET News, CA - Jun 17, 2008
... and in the future intends to spread its tour date and recommendation engine even further. By Caroline McCarthy ? March 5, 2008, 5:55 AM PST This post ...
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Shacknews - Jun 24, 2008
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Slashdot - Jun 18, 2008
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… by tissue-specific alternative splicing Article published online before print. See web site for date … -
KM ELGADI, RA MEGUID, M QIAN, WW SOUBA, SF … - Physiological Genomics, 1999 - Am Physiological Soc
... endonuclease (Hind III, BamH I, EcoR I, Pst I, or ... Article published online before
print. See web site for date of publication (http://physiolgenomics.physiology ...

How Does Privatization Work? Evidence from the Russian Shops -
N Barberis, M Boycko, A Shleifer, N Tsukanova - Journal of Political Economy, 1996 - UChicago Press
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… in the endothelium Article published online before print. See web site for date of publication (http … -
V EVANS, A HATZOPOULOS, WC AIRD, HB RAYBURN, RD … - Physiological Genomics, 2000 - Am Physiological Soc
... Kpn I, Xma I, BamH I, Xba I, Sal I, Pst I, Sfi I ... Article published online before
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Can Imperfect Competition Explain the Difference between Primal and Dual Productivity Measures? … -
W Roeger - Journal of Political Economy, 1995 - UChicago Press
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Dividends and Taxes: Some Empirical Evidence -
MH Miller, MS Scholes - The Journal of Political Economy, 1982 - UChicago Press
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College Entry by Blacks since 1970: The Role of College Costs, Family Background, and the Returns to … -
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Safer Ironing

Article Date: 27 Nov 2006 - 0:00am (PST)
Every electrical appliance has to have a 'CE' label. An abbreviation for 'Communauté Européenne', this means that the appliance has satisfied the statutory requirements of the European Union. Additional safety certifications are the 'GS' label in Germany and the 'UL' standard of the Underwriter Laboratories in the USA. These various seals of approval pose a real challenge to development engineers. Before an iron, for instance, can be put on the market, the manufacturer has to carry out extensive tests: "Every prototype has to survive a fall from a height of one meter onto a slab of wood in the laboratory without compromising the safety of the appliance," states André Heinrietz of the Fraunhofer Institute for Structural Durability and System Reliability LBF in Darmstadt. "These investigations have always been very time-consuming, as a prototype had to be built in order to carry them out. Then, whenever an appliance failed the drop test, expensive modifications had to be made to the highly complex die-casting mold." In a joint project with a manufacturer of household appliances, the Fraunhofer research scientists have developed a simulation model that enables this drop test to be carried out at the planning stage - long before the first prototype has been built.
Obviously, a simulation tool of this kind will only be of use to manufacturers if it truly reflects the real-life situation. To test whether the virtual drop test produces the same results as the actual test, the engineers investigated the dynamic processes that take place inside an iron when it falls off the ironing board. Their study proved that cracks appeared in the same place in both the real and the simulated drop tests - namely between the back cover and the tank.

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The simulation also illustrated the exact path of the damage: First of all, one of the retaining pins on the cover snaps. The cover shifts out of place, causing heavy forces to act on the screw joints. This, in turn, leads to cracks in the wall of the tank. Thanks to the results of the simulation, the engineers were able to redesign the cover. "A minor change to the shape of the cover alters the distribution of forces so that there is no more risk of water escaping from the tank," explains André Heinrietz. These "computer-aided" methods enabled the scientists to avoid modifications to the highly complex die-casting mold and thus to save costs. "The simulation tool enables us to reconcile the design and function of steam irons with their operational safety."

About the FRAUNHOFER-GESELLSCHAFT

The Fraunhofer-Gesellschaft is the leading organization for institutes of applied research in Europe, undertaking contract research on behalf of industry, the service sector and the government. Commissioned by customers in industry, it provides rapid, economical and immediately applicable solutions to technical and organizational problems. Within the framework of the European Union's technology programs, the Fraunhofer-Gesellschaft is actively involved in industrial consortiums which seek technical solutions to improve the competitiveness of European industry.
 
 
 
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