determine the section modulus of the sheet pile per unit length.


A cantilever sheet pile wall is driven into undrained clay and then back-

filled with granular soil. The groundwater table is at the dredge line.

The sheet pile and the soil characteristics are shown in Figure 7.57.


(1) The depth of the embedment, D, using a factor of safety of 1.5 for

strength reduction.

(2) The maximum moment on the sheet pile.

(3) Given the allowable flexural stress of the sheet pile, all =

150 MN∕m², determine the section modulus of the sheet pile per

unit length.

find the cost of your paper

Explain why attenuation is not a big problem in PET.

Consider a 2-D object consisting of two triangle compartments, as shown in Figure P9.4. Suppose a solution containing a 511 KeV gamma ray emitting radionuclide with concentration f = 0.5….

Give the mean and the variance of the reconstructed image, mean[ˆ f(x, y)] and var[ˆ f(x, y)].

Ignoring the inverse square law and attenuation, an approximate reconstruction for SPECT imaging is given by where c˜() =  {||W()} and W() is a rectangular windowing filter that cuts off at = 0…..

Find the numerical responses in each to an event in crystal C(4, 6).

Suppose a PET detector comprises four square PMTs (arranged as a 2 by 2 matrix) and a single BGO crystal with slits made in such a way that it is….