Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Serife Ozkar"'
Publikováno v:
Mathematics, Vol 11, Iss 23, p 4854 (2023)
We discuss two queueing-inventory systems with catastrophes in the warehouse. Catastrophes occur according to the Poisson process and instantly destroy all items in the inventory. The arrivals of the consumer customers follow a Markovian arrival proc
Externí odkaz:
https://doaj.org/article/e012fdff43634511bcd765072f8957cd
Autor:
Serife Ozkar
Publikováno v:
Annals of Operations Research.
Autor:
Umay Uzunoglu Kocer, Serife Ozkar
We analyze a two-commodity queueing-inventory system with an individual ordering policy. The maximum storage capacity for the ith commodity is $$S_i$$ $$(i=1,2)$$ . The reorder level for ith commodity is fixed as $$s_i$$ and whenever the inventory le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e78f9e174222ed8614877d6f64e247ce
https://avesis.deu.edu.tr/publication/details/7a7fac5c-f3a0-4cbf-b383-77e1a403427e/oai
https://avesis.deu.edu.tr/publication/details/7a7fac5c-f3a0-4cbf-b383-77e1a403427e/oai
Autor:
Umay Uzunoglu Kocer, Serife Ozkar
Publikováno v:
International Journal of Applied and Computational Mathematics. 3:2729-2744
In classical vacation queue models, the server completely stops serving customers during a vacation period. We deal with a system in which the server performs other supplementary jobs at a different rate rather than entirely stopping during this peri
Autor:
Şerife Özkar
Publikováno v:
Uludağ University Journal of The Faculty of Engineering, Vol 28, Iss 1, Pp 89-106 (2023)
In this study, a production inventory model with phase type service times where customers join the system occur according to a Markovian arrival process is discussed. When the inventory level is positive, if an arriving customer finds the server idle
Externí odkaz:
https://doaj.org/article/b58fa205816e4407878d17aa42002fb0
Autor:
Umay Uzunoglu Kocer, Serife Ozkar
Publikováno v:
Applied Stochastic Models in Business and Industry. 31:892-911
Queuing systems with finite buffers are reasonable models for many manufacturing, telecommunication, and healthcare systems. Although some approximations exist, the exact analysis of multi-server and finite-buffer queues with general service time dis
Autor:
Srinivas R. Chakravarthy, Serife Ozkar
Publikováno v:
ECMS
Autor:
Serife Ozkar, Srinivas R. Chakravarthy
Publikováno v:
Mathematica Applicanda. 44
Crowdsourcing has been used in different domains such as healthcare, computer science, environmental sciences, business and marketing. However, only recently, queueing models useful in the context of crowdsourcing have been studied. These studies inv
Autor:
Serife Ozkar, Srinivas R. Chakravarthy
Publikováno v:
Business and Management Research. 5
Crowdsourcing has been used in different domains gaining significant exposure in many fields such as healthcare, computer science, environmental sciences, business and marketing. The meaning and interpretation of crowdsourcing is varied and despite i