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Predictions of Arctic summer ice melt come with lots of uncertainty
2014-08-02 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Alaska Dispatch: Every year, as Arctic sea ice thins, scatters and melts, scientists ask: How low will it go? While the long-term trend of less summer Arctic ice is clear, the short-term outlook for total melt in any given year is far murkier, thanks to the many and sometimes highly volatile factors that drive the final outcome. Still, scientists are attempting to predict how much Arctic sea ice will remain at the end of this years melt, expected in mid to late September. The latest round of expert predictions,...
EM De-Embedding Magic Part 2: Lots Of Ports, All Talking To Each Other!
2014-07-30 22:32:34| rfglobalnet Downloads
By Dr. James C. Rautio, President, CEO, and founder, Sonnet Software, Inc. In part I, I described how I came up with the EM port calibration theory that we have been using very successfully for nearly 30 years. It is so simple. To de-embed a single, lonely port, just EM analyze a 2-port through line of length L, and a second one of length 2L, do some magic math (described in Part I and in [1] and [2]), and we have beautiful, fully de-embedded EM analysis data for that lonely port. (If we have additional lonely ports, just repeat the process for those ports, one at a time, as well.) Central to that calibration and de-embedding procedure is the conversion of S-parameters into ABCD-parameters and back again. We usually measure (or EM analyze) one S-parameter matrix for each frequency of interest. If we are calibrating a single port, our calibration standards (the through lines) are 2-port devices, and our matrix is a complex (i.e., it has real and imaginary parts) 2×2 matrix. We calibrate and de-embed at each frequency, one frequency at a time. Both the S-parameters and the ABCD-parameters that we use for calibration are 2×2 matrices.
Thieves Target Wheels, Tires At Bartlesville, Broken Arrow Car Lots
2014-07-23 05:18:06| Auto Dealers - Topix.net
Jimmy Easton said the thieves hit five GMC pickups and one Dodge Challenger, a haul worth somewhere around $30,000.
Beware of flood damaged cars appearing on car lots
2014-07-19 07:35:28| Auto Dealers - Topix.net
Beware of flood damaged cars appearing on car lots Investigation found several damaged cars showing up on used car lots all over the country Check out this story on jacksonsun.com: http://www.jacksonsun.com/story/money/business/columnists/2014/07/18/beware-flood-damaged-cars-appearing-car-lots/12864855/ Hundreds of thousands of cars were damaged in ... (more)
Bring it on: Alaska Airlines says there's lots more overhead bin space
2014-07-10 19:30:14| Airlines - Topix.net
Alaska Airlines said it's the first airline to use Boeing Co.' s new "Space Bins" on its 737-900ER planes, which will increase overhead storage on the plane by nearly 50 percent.
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