Analysis of B M A P/M S P/1 Queue

Samanta, S. K.; Chaudhry, M. L.; Pacheco, Antònio

doi:10.1007/s11009-014-9429-0

Cited by 21 publications

(8 citation statements)

References 19 publications

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“…The method capabilities were extensively studied in ZIF-8 framework, and subsequently applied to IRMOF-1 and ITQ-29 crystal structures. [275] InfiniCharges [276] is a tool for generating reliable partial charges for molecular simulations in periodic systems using the DM-REPEAT method. The stability of the resulting charges, over a large set of fitting regions, is obtained through the simultaneous fit of multiple electrostatic potential (ESP) configurations together with the total dipole fluctuations (TDF).…”

Section: Point Chargesmentioning

confidence: 99%

Design, Parameterization, and Implementation of Atomic Force Fields for Adsorption in Nanoporous Materials

Dubbeldam

Walton

Vlugt

et al. 2019

Advcd Theory and Sims

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Molecular simulations are an excellent tool to study adsorption and diffusion in nanoporous materials. Examples of nanoporous materials are zeolites, carbon nanotubes, clays, metal-organic frameworks (MOFs), covalent organic frameworks (COFs) and zeolitic imidazolate frameworks (ZIFs). The molecular confinement these materials offer has been exploited in adsorption and catalysis for almost 50 years. Molecular simulations have provided understanding of the underlying shape selectivity, and adsorption and diffusion effects. Much of the reliability of the modeling predictions depends on the accuracy and transferability of the force field. However, flexibility and the chemical and structural diversity of MOFs add significant challenges for engineering force fields that are able to reproduce experimentally observed structural and dynamic properties. Recent developments in design, parameterization, and implementation of force fields for MOFs and zeolites are reviewed.contain silicon and oxygen. They are readily available, very stable, and relatively cheap. The material should have the right combination of high adsorption selectivity, combined with adequate capacity for use in fixed-bed devices. Recently, new classes of nanoporous materials have been designed that have stability, high void volumes, and well defined tailorable cavities of uniform size. Example are metal-organic frameworks (MOFs), [1][2][3][4][5][6][7] covalent organic frameworks (COFs), [8,9] and zeolitic imidazolate frameworks (ZIFs). [10] These novel materials posses almost unlimited structural variety because of the many combinations of building blocks that can be imagined. The building blocks self-assembly during synthesis into crystalline materials that, after evacuation of the structure, can find applications in adsorption separations, air purification, gas storage, chemical sensing, and catalysis. [4,11] The judicious selection of building blocks allows the pore volume and functionality to be tailored in a rational manner. Because of the designprinciple underlying the synthesis, it is important to understand structure-properties relations, such as the mechanisms of gas separation as a function of shape and size of the pore system, in order to create "blueprints to MOF-design." Computer simulation is cost-effective, fast, and allows for rapid identification of important structural parameters affecting adsorption.Most of the published works on molecular simulation studying zeolites have used the Kiselev model. [12] In this model, zeolite atoms are fixed and interactions of guest atoms with silicon atoms is accounted for by an effective interaction only with the surrounding oxygen atoms. Interactions between sorbate molecules and the host are modeled by placing Lennard-Jones sites and partial charges on all framework atoms and sorbate molecules. The Kiselev model is attractive because of its simplicity and computational efficiency. This model has shown significant success, both in using the molecular dynamics method to compute, for example, the diffu...

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Section: Point Chargesmentioning

confidence: 99%

Design, Parameterization, and Implementation of Atomic Force Fields for Adsorption in Nanoporous Materials

Dubbeldam

Walton

Vlugt

et al. 2019

Advcd Theory and Sims

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“…4c, we can extract a rough estimate of at least 5x increase in ZT. In the case of nanoinclusions, one would expect that the thermal conductivity reduction is not as strong compared to the case of nanovoids, however, in a number of examples where nanoinclusions are formed within matrix materials it is still found that thermal conductivity can be reduced by an order of magnitude [32,33]. Since in this case we see little change in the power factor (see Fig.…”

Section: Resultsmentioning

confidence: 93%

Quantum transport simulations for the thermoelectric power factor in 2D nanocomposites

Foster

Thesberg

Neophytou

2019

Materials Today: Proceedings

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“…Queueing systems with BM AP arrivals and correlated service processes are studied in following papers. Samanta et al [19] analyze BM AP/M SP/1 queueing system based on roots of the associated characteristic equation of the vector generating function of system-length distribution at random epoch. The steady-state system-length distributions at various epochs as well as of the actual sojourn-time distribution of an arbitrary customer in an arriving batch is derived in this paper.…”

Section: Highlights Of This Paper Arementioning

confidence: 99%

A $ {BMAP/BMSP/1} $ queue with Markov dependent arrival and Markov dependent service batches

Krishnamoorthy¹,

Joshua²

2021

JIMO

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Batch arrival and batch service queueing systems are of importance in the context of telecommunication networks. None of the work reported so far consider the dependence of consecutive arrival and service batches. Batch Markovian Arrival Process(BM AP ) and Batch Markovian Service Process (BM SP ) take care of the dependence between successive inter-arrival and service times, respectively. However in real life situations dependence between consecutive arrival and service batch sizes also play an important role. This is to regulate the workload of the server in the context of service and to restrict the arrival batch size when the flow is from the same source. In this paper we study a queueing system with Markov dependent arrival and service batch sizes. The arrival and service batch sizes are assumed to be finite. Further, successive inter-arrival and service time durations are also assumed to be correlated. Specifically, we consider a BM AP/BM SP/1 queue with Markov dependent arrival and Markov dependent service batch sizes. The stability of the system is investigated. The steady state probability vectors of the system state and some important performance measures are computed. The Laplace-Stieltjes transform of waiting time and idle time of the server are obtained. Some numerical examples are provided.

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Analysis of B M A P/M S P/1 Queue

Cited by 21 publications

References 19 publications

Design, Parameterization, and Implementation of Atomic Force Fields for Adsorption in Nanoporous Materials

Design, Parameterization, and Implementation of Atomic Force Fields for Adsorption in Nanoporous Materials

Quantum transport simulations for the thermoelectric power factor in 2D nanocomposites

A $ {BMAP/BMSP/1} $ queue with Markov dependent arrival and Markov dependent service batches

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