diygardeningblog.blogspot.com
DIY Gardening: Does Weeding Really Make A Difference?
http://diygardeningblog.blogspot.com/2008/06/does-weeding-really-make-difference.html
Gardening can be a lot of work but it can also be very satisfying. Let's go garden and have some fun! Saturday, June 21, 2008. Does Weeding Really Make A Difference? One of the questions we get most often is “Does weeding really make that much difference? So, what’s the issue with weeds? So we urge you to WEED EARLY, WEED OFTEN and WEED SHALLOW when close to your desired plants. For those of you who already have a circlehoe. You know how much easier it makes the job. I am so glad I did. We spend the ...
mohamadfarzan.blogspot.com
Signal Integrity Blog: Maintaining Power Integrity
http://mohamadfarzan.blogspot.com/2008/06/maintaining-power-integrity.html
Tutorials on Signal Integrity, Power Integrity and High Speed Board Design Techniques. Tuesday, June 10, 2008. ZTarget = ∆V/I. Ztarget = 10% x 3.3 V / 1A = 0.33V / 1 A = 0.33Ω. Here the device draws a current of 1A to in 1ns that means the bandwidth is calculated by,. F = 035 / Tr = 0.35 / 1ns = 350 MHz. The impedance of the PDN must equal 0.33Ω in this case for all frequencies less than 350MHz to deliver a sufficiently clean power to the devices connected to it. October 5, 2008 at 5:47 PM.