In order to evaluate the main difference in induction period
as a function of antioxidant additions, the grape seed oil and vitamin E were bought from compounding pharmacies based on Dourados-MS, brazil and the Eugenol (R.G.
Sample The end time of the The appear time of the second induction period
(h) exothermic peak (h) Pure 1.3 7.9 cement + 0.05% 1.7 8.3 EAC + 0.05% 2.2 9.2 DMO + 0.05% 1.8 10.6 TG +0.05% 4.2 10.4 TMP +0.05% 2.2 10.9 TB Sample Second exothermic peak Total heat release (J/g) exothermic rate (J/g-h) 24 h 48 h 72 h Pure 14.2 295.0 374.0 416.6 cement + 0.05% 14.8 311.3 396.8 443.5 EAC + 0.05% 15.6 325.6 418.1 468.4 DMO + 0.05% 17.7 330.0 430.1 482.2 TG +0.05% 13.2 266.7 345.2 389.0 TMP +0.05% 16.3 311.8 411.2 463.7 TB Table 5: Pore structural parameters of hardened cement.
According to Rossel, oxidative stability of oils is directly linked with the induction period
. The IP (Rancimat, 20 L/ h, 120degC) of cottonseed oil was determined in the range of 1.95-2.65 h .
At 150 [degrees]C there is an induction period
of 8 hours before the rate increases until a plateaus is reached after 72 hours.
An induction period
in which the increase is not sharp.
The induction period
is the length of time until progressive oxidation exponentially accelerates the generation of oil degradation compounds (Kristott, 2000).
. The results of induction period
of different treatments of high oleic butter oils are presented in Table 5.
Moreover, we also found that the added alkaline cations could shorten the induction period
of the catalytic oxidation.
Highest vitamin C level (94.8 and 61mg 100[g.sup.-1]) in calli induced with 4.14[micro]M PIC + 0.207[micro]M KIN was obtained, followed by 8.28[micro]M PIC + 4.14[micro]M KIN, both during the induction period
Moreover, all patients in this group were treated with prophylactic sulfamethoxazole compound tablets during the induction period
routinely from the beginning of induction therapy, at a daily dose of 25 mg/kg (4 days consecutively with 3-days interval).
By analysing the processes at the end of the induction period
, it can be assumed that this period ends between 15 and 18 h.
Safdar Ali, Vice Chairman of Shaheen Air International, said the airline has witnessed rapid induction period
in the aviation industry of the world as 18 aircraft were inducted in 18 months including replacement of old aircrafts with new.