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wilber_xbox
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Re: degrees correction
wilber_xbox   12/29/2014 12:46:38 PM
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140 degee F is pretty high temperature for superconductivity ever though its not in DC mode. There are so many applications in research that can open new pathways now.

jackOfManyTrades
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Re: degrees correction
jackOfManyTrades   12/18/2014 5:36:53 AM
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Yes, I read the headline and wondered whether it was K or C (not knowing that you don't talk about degrees K). I assumed it was C as 140K doesn't seem anything to write home about. It would never have entered my head that it would be F.

R_Colin_Johnson
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Re: less losses
R_Colin_Johnson   12/17/2014 11:20:17 AM
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Thanks for the perspective prabhakar_deosthali, there are so many energy savings we could reap from room-temperature superconductors their almost innumerable. They have already enabled many advances that are worth the trouble of super cooling, like MRIs, but I'm still convident one of these brilliant minds working on the problem will crack the theory for room temperatue operation.

R_Colin_Johnson
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Re: degrees correction
R_Colin_Johnson   12/17/2014 11:11:54 AM
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Yes, you'd think with all the researchers working and thinking about superconductivity they would have cracked its secret by now. Roman Mankowsky and his collaborators think they have gotten a toe-hold, but are still a long way from steady-state DC.

R_Colin_Johnson
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Re: degrees correction
R_Colin_Johnson   12/17/2014 11:07:33 AM
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Yes, it is 140 degrees Fahrenheit and thanks for the tip on Kelvin.

prabhakar_deosthali
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less losses
prabhakar_deosthali   12/17/2014 1:04:47 AM
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If we have superconductors that work at ambient temperatures then it will be a great way to reduce transmission losses in the long distance transmission lines . It can also rduce the heat losses ( and the required cooling to keep the circuits cool).

Superconductors could save many a megawatts of electricity that goes waste as heat in the normal conductors.

Doug_S
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Re: degrees correction
Doug_S   12/16/2014 4:56:38 PM
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When I saw the headline I assumed it meant 140K, and thought "nice bump, but still a long way to go".  140F or 140C would both be wonderful, but there's currently a pretty big caveat attached to it.

 

I'm still shocked we haven't figured out superconduction works - if we did we'd probably lick the problem of high temperature superconducting materials in a few years.  Right now we're still mostly guessing based on materials that are similar to other known superconductors.

scottlawsonbc
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degrees correction
scottlawsonbc   12/16/2014 4:20:08 PM
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This is a minor thing, but the title alone does not indicate whether '140 Degrees' has units of fahrenheit or celcius. Also, there is no such thing as 'degrees Kelvin', only Kelvin



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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