05 May 2015 2 7K Report

I try to measure the thickness of CdTe from RBS, I found the solid angle, the no. Of particles, but I don't know how I can find differential cross section and what I have to do.

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Please how to derive the expression for theta between the angular velocity vector and the angular momentum vector for a spinning frisbee ?

what is the angle between the angular velocity vector and the angular momentum vector for a spinning frisbee or disk ? please. Regards Mohammed 

11 December 2016 5,927 0 View

A non concentric charge inside a spherical shell with inner & outer radii a & b respectively what is E and total charge inside and outside the shell ?

the charge put at (0,0,Z0 ), where z0 < a and there is no charge outside. what is the electric field inside and outside the shell ? and the total charges on both inner and outer shell surfaces....

02 March 2016 394 3 View

SnO2/Au.

If I have an Au thin films which 300 A thick and evaporated by thermally deposited, since 5 years and now a strange spots appear on them, and i want to make them as a contact for SnO2 which will...

02 March 2013 6,397 9 View

Nanoparticle grainsize determination

Why could the the grain size calculated by XRD be larger than the grain size calculate by UV-Vis method for the same sample?

05 June 2012 9,916 25 View

FTIR test for semiconductor thin films

What is the benefit of FTIR (spectroscopy) test for semiconductor thin films and can we find out what kind of semiconductor we can test with it?

02 March 2012 7,429 15 View

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