8.3 by using the form of the channel de ned in equation (8.46), plot a hundred random qpsk constellation points and the magnitude squared of the fft (and use zero-padding to smooth the shape) of the channel for a single draw for a given channel de ned by (a) no delay spread, (b) k = 0: 3, (c) k = 1, (d) k = 3, (e) k = 10, (f) k = 25.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false

List and describe the parts of boxford cnc milling machine with pictures?