To ensure the safe operation of airliners, airframes and engines of civil and military aircraft have obligatory major overhauls after specified time intervals.
The numerical simulation of the transient regime was performed by solving the conservation equations, for one-dimensional isentropic compressible flow, using the characteristics method of specified time intervals.
Due to the contract with the electric utility, the production companies are obligated to comply with the total energy consumption limits in the specified time intervals (usually 15-min long); otherwise, the companies pay substantial penalty fees.
Time course studies were carried out to collect the 1.0 mL sample after specified time intervals.
Sampling of the supernatant liquid was realized at specified time intervals.
The samples were withdrawn after specified time intervals and replaced with the same volume of PBS (pH 7.4).
At the specified time intervals, the contents of each flask were cooled and transferred to 25 mL volumetric flask.
At specified time intervals (0, 30, 60, 120, 180, 240, and 480 min), supernatants were collected by centrifugation.
Cox and Weibull proportional hazards models for survival time (t SURV) were estimated, with TVC assumed to have constant effects for specified time intervals following hospital arrival.
After specified time intervals (12,24,48, 72 h) the cells were lysed and the formazan crystals were dissolved using 150 μl of DMSO.
The samples were collected at specified time intervals, and the concentration of CV in the effluent was analyzed using UV/vis spectrophotometer.
