The presence of metallic elements appeared to act as a catalyst by speeding up the degradation when the tests duration was increased.
Still, the creep tests duration was within thirty hundred hours each; therefore the levels of the applied load (150.2 100 MPa) were not as low as those in typical operation conditions.
In this connection, it should be noted that polarization curves are built after 15 30 min of specimen exposition in the corrosion environment, when corrosion potential E is stabilized, while the parameters K and P were calculated on the base of corrosion tests duration of 99 288 h.
The authors aimed to evaluate the effects of continuous ultrafiltration on the need for blood transfusion, liver function tests, duration of postoperative ventilatory support, and the length of the intensive care unit (ICU) stay in cirrhotic patients undergoing valvular heart surgery.
There were no significant differences in the need for vasoactive therapy, respiratory support, renal or liver function tests, duration of ICU and hospital stay or 28- and 90-day mortality.
9 The trial collected data on use of health service resources up to one year, including inpatient days in hospital wards and high dependency units, diagnostic tests, duration in theatre, outpatient and general practitioner visits, re-admissions, and use of GORD medication.
