PUCOTPiezoelectric Ultrasonic Composite Oscillator Technique
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The resonant period and the drive and gauge voltages were recorded for the resonant assembly and used in the working equations of the PUCOT (4) to obtain the storage and loss moduli of Tefzel 280.
The storage and loss moduli of Tefzel 280 obtained using the PUCOT are higher than typical values for polymer melts.
Figure 9 shows the experimental data obtained using the PUCOT, juxtaposed with lower frequency data (3).
The low frequency range data (0.01 to 500 rad/s) and those obtained using the PUCOT (0.25 x [10.sup.6] to 1.28 x [10.sup.6] rad/s) were combined and used to obtain the discrete relaxation spectrum (DRS) for Tefzel 280 at 280 [degrees] C using the technique of linear regression with regularization outlined by Orbey and Dealy (8).
The loss angles for the high frequency (PUCOT) measurements and the back-calculated loss angles obtained using the DRS given in Table 1 showed good agreement and were nearly zero as would be expected at such high frequencies.
Investigation revealed that Pucot was at the seashore and was preparing to set sail to fish when he saw the two blocks.
Pucot was walking along the seashore of Handamayan on Tuesday when he noticed the floating bricks wrapped in transparent cellophane and black rubber.
Pucot reportedly found the suspected cocaine along the shores of Barangay Handamayan, some 20 kilometers from the Lingig police station.
Police said that with a kilo of cocaine costing about P5.3 million, the cocaine found by Pucot could be worth P106 million.