Liquid phase epitaxyby G. M. Blom, S. L. Blank and J. M. Woodall

Swinkels , J . M . and Lam , T . J . G . M .

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CORRELATION OF INTERDEPARTURE TIMES IN M / G / l AND M / G / l / K QUEUES

Correlation of consecutive interdeparture times characterizes the output process in a queueing system. We present a recursive procedure for calculating the joint distribution of an arbitrary number of consecutive interdeparture times in M/G/1 and M/G/l /K queues. We then obtain explicitly the covariances of nonadjacent interdeparture times, and display the correlation coefficients that reveal t...

How , M . J . , Christy , J . H . , Temple , S . E . , Hemmi , J . M . , Justin Marshall , N .

DISTRIBUTION PROPERTIES OF DISCRETE CHARACTERISTICS IN M/G/l AND GI/M/l QUEUES

It has been shown by many authors that distribution properties of some characteristics in queues are inherited from those of the service times. For instances, Keilson (1978) showed that the length of a busy period in an M/G/l queue has a completely monotone density if so does the service time, Shanthikumar(1988) proved that the waiting time distribution in a GI/G/l queue is DFR if so is the ser...

Kelly , B . , Knight , G . , Casey , J . and Guy , M . (

2 The QA Focus Project The Open Access movement is promoting the advantages in providing more liberal access conditions to research and teaching and learning resources and is developing a legal infrastructure and associated technologies to support this. This paper argues that IT Services can benefit by adopting a similar approach for IT support materials. A case study is provided which describe...