Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun metrology Symbol for the
zeptotesla , anSI unit ofmagnetic flux density equal to 10−21teslas .
Etymologies
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Examples
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The utility of thermoelectric materials is usually measured by what's called a "figure of merit," a unit-less value abbreviated as zT.
Ars Technica John Timmer 2011
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Closer to room temperature 200°C or 473K, the best semiconductors we have turn in a zT of about one.
Ars Technica John Timmer 2011
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To make sense in specialized applications, we'd want a zT above two; the higher above that and/or the cheaper the material, the more use cases become possible.
Ars Technica John Timmer 2011
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The authors simply tried various degrees of oxidation until they had optimized the thermoelectric effect, finding they could get a zT as high as 0.25 at room temperature.
Ars Technica John Timmer 2011
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Based on their calculations, they produced a Pb/Te/Se material that was doped with sodium impurities, and measured its zT as 1.8 at 850K.
Ars Technica John Timmer 2011
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Right now, some of the best materials we know about have a zT of about one, and some of these involve the use of toxic metals.
Ars Technica John Timmer 2011
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