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 [20].
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).
Induction period. 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, respectively.
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.