Consider a single server retrial queueing system with preemptive priority service and single working vacation in which two types of customers arrive in a Poisson process with arrival rates λ1 for low and λ2 for high priority customers. We assume that regular service times follow an exponential distribution with parameters μ1 and μ2 correspondingly. The retrial is introduced for low priority cus...

Music has a great capacity to afford spiritual experiences, but are those experiences intrinsic or extrinsic to the music? This paper reports the results of research aimed at answering that research question. One hundred and seventeen self-reported Christian religious people completed a survey, answering eight rating-item questions about strong musical experiences, both in a religious and a non...

Landslide generated tsunamis are lesser-known yet equally destructive than earthquake tsunamis. Indeed, the highest tsunami wave recorded in recent history was generated by a landslide in Lituya Bay (Alaska, July 9, 1958) and produced runup in excess of 400 m. In this paper, we review the state of the art of landslide tsunami analytical modelling. Within the framework of a linearised shallowwat...

This paper presents an ACT-R model of a realistic menu item selection task from a previous study. The model aims to explain observed trends in both the mean and dispersion of response time (RT) with respect to both menu length and amount of practice. Our model follows previous work in assuming that the primary strategies for determining the location of the target menu item are visual search and...

The most common approach for development, testing programs include some corrective actions during testing and some delayed fixes incorporated at the end of test. This paper presents an Extended model that addresses this practical situation given in the application part of sec 3.In this application the testing mode is considered as active mode and the delayed fixes mode as at the delivery. The r...

Failure location in transparent optical networks is difficult because of the large number of alarms that a failure can trigger and because of corrupted alarms. One problem that network operators often face is how to set the thresholds in monitoring devices: Setting the thresholds low results in false alarms, whereas setting them high presents the risk of missing a significant degradation in net...