Thomas Goronwy (“T G”) Evans

Thomas G. Pickering: friend, colleague and scientist.

We, in common with many others, realized that with his passing, an era in hypertension research had also ended, and that it would be remiss of us and of ‘Blood Pressure Monitoring’ on which he served with us as a senior editor for so many years, if we did not pay tribute to his remarkable achievements. We acknowledge it as a tribute to the friendship and respect that Tom inspired across the wor...

Thomas Hermann , Andy Hunt , John G . Neuhoff

A Markov model for measuring service levels in nonstationary G(t)/G(t)/s(t) +G(t) queues

We present a Markov model to approximate the queueing behavior at the G(t)/G(t)/s(t) + G(t) queue with exhaustive discipline and abandonments. The performance measures of interest are: (1) the average number of customers in queue, (2) the variance of the number of customers in queue, (3) the average number of abandonments and (4) the virtual waiting time distribution of a customer when arriving...

G T R

We study the notion of a stub equality for a congruence generated by a ground term rewrite system (GTRS). We study the congruence generated by the union of GTRSs R and S , where the congruences generated by R and S intersect with respect to their stubs. We show that for any equivalent reduced GTRSs R and S , the same number of terms appear as subterms in R as in S . We give an upper bound on th...

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