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- L Kabilan, S Balasubramanian, +6 authors K Satyanarayana
- Journal of clinical microbiology
- 2003

An investigation in a referral pediatric hospital has indicated that during a recent dengue outbreak in Chennai, Tamil Nadu, India, dengue in infancy constituted 20% of total dengue virus infections with low mortality rates in this hospital. In developing countries, strengthening of dengue management capabilities at hospitals can prevent dengue-related… (More)

- GOPAL SEKAR
- 2010

Consider a single server retrial queueing system with loss and feedback under Pre-emptive priority service in which two types of customers arrive in a Poisson process with arrival rate λ 1 for low priority customers and λ 2 for high priority customers. These customers are identified as primary calls. The service times follow an exponential distribution with… (More)

- Gopal Sekar
- 2010

Consider a single server retrial queueing system with pre-emptive 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… (More)

Consider a Multi server Retrial queueing system with vacation policies in which arrival rate follows a Poisson distribution with parameter λ and service time follows an exponential distribution with parameter μ. Let <i>c</i> be the number of servers in the system. Two type of vacation policies have been introduced in this paper namely exhaustive… (More)

The objective of this paper is to study the stability analysis of single server retrial queueing system with Erlang-k service under various constraints over the behavior of server and customers, in which customers arrive in a Poisson process with arrival rate λ. These customers are identified as primary calls. Let k be the number of phases in the… (More)

Consider a single server retrial queueing system with negative arrival under Coxian phase type service in which customers arrive in a Poisson process with arrival rate λ. The negative arrival rate follows a Poisson distribution with parameter <i>v.</i> Let <i>k</i> be the number of phases in the service station. The service time follows an exponential… (More)

- Gopal Sekar
- 2010

Consider a single server retrial queueing system in which customers arrive in a Poisson process with arrival rate λ. Let k be the number of phases in the service station. Let the service time follows an Erlang K-type distribution with service rate kμ for each phase. The server goes for vacation after exhaustively completing the service to the customers.… (More)

Consider a single server retrial queueing system in which customers arrive in a Poisson process with arrival rate λ that which follows a Poisson process. Let k be the number of phases in the service station. The service time has Erlang k-type distribution with service rate kμ for each phase. Two types of vacation policies are discussed in this research… (More)

Consider a single server retrial queueing system in which customers arrive in a Poisson process with arrival rate λ and negative customers arrive at a rate ν which also follows a Poisson process. Let K be the number of phases in the service station. The service time has Erlang-K distribution with service rate Kμ for each phase. We assume that the services… (More)

Consider a single server retrial queueing system with pre-emptive priority service and vacation interruptions in which customers arrive in a Poisson process with arrival rate λ 1 for low priority customers and λ 2 for high priority customers. Further it is assume that the service times follow an exponential distribution with parameters μ 1 and μ 2 for low… (More)

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