Several factors have been incriminated in the etiologies of critical incidents: shortages in organizing rules, anesthesia technique, patient environment, human factor, team work and communication. This is the third follow up report describing our performance during the last five years (2003-2008). The possible incriminating causes were identified with the objective of avoiding such eventualitie...

Anti friction bearings in process pumps, by design, frequently utilize oil sump lubrication technology. For many years, it was an accepted condition that the lubricating oil used in oil sump bearing lubrication needed to be changed on a regular basis to prevent high levels of contamination that can lead to premature bearing failure, contributing to equipment downtime. Often, the indicators used...

For equipment and systems that are too expensive and too important to fail such as launch vehicles and spacecraft, the actual reliability is dominated by infant mortality failures that occur soon after dynamic environmental ATP that is used to eliminate the equipment that will fail prematurely. Premature equipment failures greatly increase risk getting to space and working in space, slowing dow...

A GPS-SBAS Receiver is developed around a Digital Signal Processor with optimize usage of hardware and software in the system. The receiver is designed and engineered for use in avionics application after FAA TSO certification. Important aspects of the receiver are reliable hardware and safety features. The failure analysis of the receiver hardware for various navigation functionalities shows a...

Abstract At present, there is a problem, which inconvenient for people to record structure failure data, in some experimental process of special equipment. Focusing on the trigger method high speed photography recording component strength experiment equipment, and choosing feature vibration situation that specimen failure, we design two schemes, are integration switch basing velocity voltage co...

Almost all previous work on model-based diagnosis has focussed on persistent faults where the prior probability of component failure is provided by the manufacturer or estimated from fleet-wide service records. However, some of the most difficult to diagnose faults are intermittent. It is very difficult to isolate intermittent faults which occur with low frequency but yet at high enough frequen...