Themost common and well-understood way to evaluate and compare computing systems is via performance-oriented benchmarks. However, numerous other demands are placed on computing systems besides speed. Current generation and next generation computing systems are expected to be reliable, highly available, easy to manage and able to repair faults and recover from failures with minimal human interve...

background the transjugular intrahepatic portosystemic stent-shunt (tipss) builds a shortcut between the portal vein and a liver vein, and represents a sophisticated alternative to open surgery in the management of portal hypertension or its complications. objectives to describe clinical experiences with a low-profile nitinol stent system in tipss creation, and to assess primary and long-term s...

conclusions graft failure is more likely to occur in patients with higher serum creatinine levels. results there was a positive association between the serum creatinine level and graft failure (hr = 5.13, p < 0.001). a one unit increase in the serum creatinine level suggests an increased risk of graft failure of up to 5.13 times. the serum creatinine level significantly decreased over time (95%...

Studies on common cause failures are numerous. Little is done on the effect of common cause failure on measures of system effectiveness like mean time to system failure (MTSF). This paper deals with the modeling and evaluation of MTSF of 2-out-of-5 warm standby repairable system with replacement at the occurrence of each common cause failure. Using Kolmogorov’s forward equations method, derivat...

Renal transplantation is considered one of the best long-term therapies for chronic renal failure, but unfortunately the incidence of malignancy significantly increases in renal transplant recipients. We analyzed nine cases of malignancy in 200 renal transplant recipients occurring in a 12-year follow-up in Imam hospital of Tehran University, Tehran, Iran. According to this study, the organ...

in this paper, the hydrogen embrittlement of the high strength cr-si spring steel with after zn-12%ni electroplating, have been evaluated. slow strain rate test with 3.34 × 10 -6 sec -1 strain rate was performed, and the hydrogen embrittlement index of the different samples was calculated. the effect of shot peening before plating and the baking after plating and also the effect of applying a n...