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Th∞retical I)ete耐nation of Physical Properties For Poly VinyI Pyrolidone | ||
| Journal of College of Education | ||
| Article 1, Volume 0, Issue 5, 2017, Pages 221-253 | ||
| Authors | ||
| Raouf M.Raouf; Khalid Mershed; Zeyad D. Kadhim | ||
| Abstract | ||
| In this research A simple model has been presented for polyvinyl pyrrolidone aqueous solutions to predict wave amplitude in C.R.O by using Ulrasonic technician (ho,, "non-radiated", hri, "irradiated", and h*i, ils a function of h**). The use of this model reflects a good result for the samples of PVPD aqueous solutions, which was radiated with gaflrma rays of 150 Rad/min, dose for 22 min at room temperature, therefore this factor, will be constant in this work. These data were used to develop a new method to predict the wave amplitude in C.R.O. The model can be used to calculate the ho,, & h"i, for a given primary amplitude of wave in C.R.O ( h-o, h*), the distance between receiver and ultrasonic wave sender x, and PVPD concentration v. From this model we can calculate absorption coefficient (c) for non radiated and irradiated PVPD as a function of h,*, h'i,, and v. This prediction method give a good agreement with the measured values, where the absolute average error for wave amplitude in C.R.O for non-radiated h,- is (1.02), wave amplitude for iradiated in C.R.O h*i' is (0.14), and wave amplitude in C.R.O hxir as a function of h"* is (0.25). The absolute average error for non-radiated (a) is (0.45), and irradiated (c) is (1.04) for all data points of PVPD. | ||
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