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How The Portugal Telecom Mispricing Went And Other Musings
2014-08-11 06:57:18| Telecom - Topix.net
And then goes on a wild tagent about the issues pertaining to your investment life which the taking of the Portugal Telecom opportunity brought to the fore.
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portugal
telecom
musings
GM Recalls 312,280 More Vehicles for Switches, Other Fixes
2014-08-09 03:58:47| Automakers - Topix.net
General Motors Co., which before today had recalled almost 29 million cars and trucks in North America this year, flagged 312,280 more, including Saturn VUE sport-utility vehicles and Cadillac ATS, for fixes.
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vehicles
switches
fixes
LME 2014: A Focused Laser Event Like No Other
2014-08-07 06:00:00| Industrial Newsroom - All News for Today
Some new names will join familiar faces teaching basic and master courses at LIA's fourth-annual Lasers for Manufacturing Event®. Four expert keynote speakers will provide big-picture analysis of how and where lasers can improve profitability for firms that bring them into their production lines. In addition, LME 2014 will cover the right lasers to buy, proper way to incorporate them into manufacturing systems, how to realize max ROI, and what applications are best suited for the ...This story is related to the following:Trade Associations
Ohio Water Crisis a Warning for Texas, Other States
2014-08-04 17:55:59| Waste Management - Topix.net
The harmful toxin found in Lake Erie that caused a water crisis in Ohio's fourth-largest city this weekend has raised concerns nationally.
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states
water
texas
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.
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