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...

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...

A new framework for the implementation of reliability centered maintenance (RCM) in the initial design phases of industrial chemical processes was developed and implemented. Fuzzy reasoning algorithms were designed to evaluate and assess the likelihood of equipment failure mode precipitation and aggravation. Furthermore, an approximate reasoning scheme which considers local, product, and adjace...

Behavior can be defined as combination of variable’s values according to external inputs or environmental changes. This definition can be applied to persons, equipment, social systems or industrial processes. This paper proposes a probabilistic mechanism to represent the behavior of industrial equipment and an algorithm to identify deviations to this behavior. The anomaly detection mechanisms, ...

The main objective of this research paper is to ascertain the problems and causes related to the failure of health care equipment and devices in Hyderabad public sector hospitals and to recommend policies and strategies to develop a procedure or mechanism for better management of health care equipment to improve health care delivery and to minimize wastage of scarce public resources. A structur...

We reviewed all patient safety incidents reported to the UK National Patient Safety Agency between August 2006 and February 2007 from intensive care or high dependency units. Incidents involving equipment were then categorised. A total of 12 084 incidents were submitted from 151 organisations (median (range) 40 (1-634) per organisation). Of these, 1021 incidents were associated with use of equi...

This paper seeks to investigate a new definition for architecture by unifying the three Vitruvian principles of firmitas, utilities, and venustas via a phenomenological approach in the interpretation and analysis of their role in defining architecture. The paper is composed in two main sections. The first section investigates the nature of architecture based on the mentioned principles, where a...