iran is a rather wide country, and, as a rule, the chrage per one call in s. t .d . (subscriber trunk dialing ) is required more compared with a local call , so, just after the opening of the std service widely in national telephone network, unconcerned use of the s. t. d. service has been caused on an incon- ceivable increase in telephone charge of th subscriber. this is a common problem for a...

This paper deals with the problem of scheduling jobs in a parallel flow shop configuration under blocking constraint, which setup time machines depends not only on job to be processed but also previously one, i.e., there are sequence-dependent times. The performance analysis several iterated greedy algorithms different initial solution procedures and local searches lets us define an efficient a...

A patient treated for hypertension with labetalol developed left ventricular failure. When the drug was withdrawn and the BP controlled with 2 other agents, the signs of heart failure regressed. The ill effects in this case could have been because the beta-blocking effects of labetalol are 4 to 6 times greater than the alpha-blocking effects. Caution should be exercised when prescribing this dr...

The association between blocking folate receptor (FR) autoantibodies and subfertility was investigated in a longitudinal study of women attempting to become pregnant. Seventeen women with subfertility (failure to conceive during 12 menstrual cycles) and 25 control women (women who conceived and went on to have normal pregnancy outcomes) were studied. Subfertility risk was 12 times higher in wom...

Post-intubation cardiac arrest (PICA) is an uncommon complication of intubation, but numbers have risen to over 1.5 times the usual number since Coronavirus disease 2019 (COVID-19) pandemic. Due expert recommendations, high-dose rocuronium has become a commonly used pre-intubation neuromuscular blocking agent.

In this paper, a method for calculating blocking experienced by dynamic multicast connections in a single link is presented. An originating o ce provides a number of channels distributed to the users by multicast subtrees which evolve dynamically as users join and leave the channels. We reduce this problem to a generalized Engset system with unidentical users and generally distributed holding t...

While attempting to clarify the confusion concerning the conceptualization of "blocking zeros" in state space in the recent literature, some new observations are made on the relationship between pole-zero cancellation and transmission blocking. An important distinction between uncontrollable and unobservable eigenvalue s is pointed out; and it is argued that the description of a Blocking Zero, ...

Entity Resolution constitutes a quadratic task that typically scales to large entity collections through blocking. The resulting blocks can be restructured by Meta-blocking to raise precision at a limited cost in recall. At the core of this procedure lies the blocking graph, where the nodes correspond to entities and the edges connect the comparable pairs. There are several configurations for M...

An approximation algorithm is presented for open tandem queueing networks with finite buffers and with general service times. The algorithm decomposes the system into individual queues with revised arrival and service process and revised queue capacity. Then, each queue is analyzed in isolation. The service process is revised so that to reB.ect the additional delay a unit might undergo due to b...

Mean value analysis is an exact solution technique for infinite capacity queueing networks and enjoyed widespread popularity during recent years. It considers the behavior of the system by stepwise increasing the number of jobs in the entire network, thus it is well-suited for the analysis of queueing networks with blocking. In this work, an approximation is introduced for the mean value analys...