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Advanced Materials Technologies, EarlyView.ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel +4 more
wiley +1 more source
Analysis of a Two-Server Queueing System with Balking and Server Breakdowns
Analysis of a Two-Server Queueing System with Balking and Server Breakdownsopenaire
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Two queues with alternating service and server breakdown
Queueing Systems, 1990A single server performs service at two stations in a cyclic manner. Breakdowns and following repairs of the server can occur both at polling and service times. Assuming Poisson arrival processes to each station and a Poisson process of breakdowns, an approximate analysis of the mean value of the waiting time is presented via the handling of so-called ...
Oliver C Ibe +2 more
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A production queueing-inventory system with two-customer and a server subject to breakdown
Annals of Operations Research, 2023 A queueing-inventory system where the server is subject to breakdown is examined. The products in inventory are provided by production. Two different types of customers are considered.
Umay Uzunoglu Kocer, Şerife Ozkar
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A production inventory model with server breakdown and customer impatience
Annals of Operations Research, 2023zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nisha Mathew +4 more
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Heterogeneous server queue with breakdown and a threshold on slow server
AIP Conference Proceedings, 2019In this paper a two heterogeneous server Markovian queue with breakdown has been considered. In addition, the second server has a threshold for service. If the system breakdown, immediately repair has been carried out. For this model, the steady state results has been obtained.
R. Kalyanaraman, S. Kalaiselvi
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On the single server retrial queue subject to breakdowns
Queueing Systems, 1998zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Amar Aissani, Jesus R. Artalejo
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Retrial queues with server subject to breakdowns and repairs
Queueing Systems, 1990The authors claim communication networks to be typical applications of their queueing model. A customer who gets a busy signal simply tries again at a later time. The server is subject to breakdowns and repairs both in his busy and in his idle period. Appropriate distributions are derived, especially the limiting distribution of the number of retrial ...
V.G. Kulkarni, Choi, Bong Dae
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Queueing Models with Backup Servers and Service Breakdowns
OPSEARCH, 2002In this paper we consider two models in which more than one server is available to service a queue, but only one server at a time is actually used. All servers are subject to breakdown, and are repaired one at a time. We consider the case where servers can only breakdown when they are servicing the queue, and we then consider the case where they can ...
Gray, William J. +2 more
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Reliability Analysis of the Retrial Queue with Server Breakdowns and Repairs
Queueing Systems, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jinting Wang, Jinhua Cao, Quanlin Li
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