The problem of fault diagnosis with communication constraints is considered. Most approaches to fault diagnosis have been focused on detecting and isolating a fault under cost constraints such as economic factors and computational time. But in some systems, such as remote monitoring (e.g., satellite, sensor field) systems, there is a communication constraint between the system being monitored a...

It is well known that series arc faults in Low Voltage DC (LVDC) distribution system occur at unintended points of discontinuity within an electrical circuit. These faults can make circuit breakers not respond timely due to low fault current. It, therefore, is needed to detect the series fault for protecting circuits from electrical fires. This paper proposes a novel scheme to detect the series...

AbstractRecent technological advancements have led to the popularity of mobile devices, which can dynamically form wireless networks. Unfortunately, mobile devices are vulnerable to failure because of various factors, including physical damage due to deployment in harsh environmental conditions, limited energy and malicious attacks. Node faults may be frequent in a mobile ad-hoc network. With t...

The fault exposure ratio K is an important factor that controls the per-fault hazard rate, and hence the effectiveness of testing of software. The paper examines the variations of K with fault density which declines with testing time. Because faults get harder to find, K should decline if testing is strictly random. However, it is shown that at lower fault densities K tends to increase; we expl...

We present a model in which investors observe the same macroeconomic data but have varying levels of information about the parameters that determine the distribution of the expected returns on investment. During a crisis that increases macroeconomic uncertainty and reduces asset prices, the threshold required return that triggers investment is lower for an informed investor than for an uninform...

steering assist system controls the force transfer behavior of the steering system and improves the steering probability of the vehicle. moreover, it is an interface between the diver and vehicle. fault detection in electrical assisted steering systems is a challenging problem due to frequently use of these systems. this paper addresses the fault detection and reconstruction in automotive elect...

Supporting both real-time and fault-tolerance properties in systems is challenging because real-time systems require predictable end-to-end schedules and bounded temporal behavior in order to meet task deadlines. However, system failures, which are typically unanticipated events, can disrupt the predefined real-time schedule and result in missed task deadlines. Such disruptions to the real-time...

This paper examines tax competition between a unionized and a nonunionized country for the location of an outside firm. We show that unionization offers an extra incentive for the government to attract a foreign competitor to a concentrated domestic market, in order to limit the power of the domestic union. This results in the unionized country’s government offering a tax discount (or a subsidy...

Online detection and prognosis are very important for the safe operation of flue gas turbines. Compared with univariate monitoring of the process, multivariate process monitoring is more effective and can capture abnormal situation in the early stage. This paper proposes a new multivariate fault prognosis framework for the flue gas turbine with a hidden fault process based on independent compon...