Results 51 to 60 of about 8,934,544 (198)

Operations Research‐Based Formalisation and Design of Sustainable Reverse Logistics for E‐Waste Supply Chains

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study demonstrates how a profitable, lean, and environmentally responsible e‐waste reverse logistics system can be designed using integrated Operations Research (OR) techniques. Addressing the growing urgency of responsible consumption (UN SDG 12) and the projected rise of the e‐waste sector to USD 137.60 billion by 2029, the research ...
Sheeba Pathak, Hajar Fatorachian
wiley   +1 more source

Fueling Tomorrow: Scenario Planning for the Future of Gas Stations

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Transport electrification is reshaping the service infrastructures that mediate everyday mobility, yet most electrification scenario studies remain macrolevel and offer limited insight into how incumbent forecourt (gas‐station) networks can adapt under deep uncertainty.
Joao Gabriel Rosa   +2 more
wiley   +1 more source

Flow-level convergence and insensitivity for multi-class queueing networks

open access: yesStochastic Systems, 2012
We consider a multi-class queueing network as a model of packet transfer in a communication network. We define a second stochastic model as a model of document transfer in a communication network where the documents transferred have a general ...
Neil S. Walton
doaj  

From Exhaustive Vacation Queues to Preemptive Priority Queues with General Interarrival Times

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2018
We consider the discrete-time G/GI/1 queueing system with multiple exhaustive vacations. By a transform approach, we obtain an expression for the probability generating function of the waiting time of customers in such a system.
Fiems Dieter, De Vuyst Stijn
doaj   +1 more source

Healthcare queueing models. [PDF]

open access: yes
Healthcare systems differ intrinsically from manufacturing systems. As such, they require a distinct modeling approach. In this article, we show how to construct a queueing model of a general class of healthcare systems.
Lambrecht, Marc, Creemers, Stefan
core  

Extending the Technology Acceptance Model to a Circular Economy Context: A Study of Hungary's REpont Deposit‐Refund System

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The aim of the study is to examine the public acceptance of the deposit‐refund system (DRS), introduced in the European Union, through an extended version of the Technology Acceptance Model (TAM). The research supplemented the classic constructs of TAM (behavioral intension, perceived usefulness, and perceived ease of use) with environmental ...
József Ráti, Zalán Márk Maró
wiley   +1 more source

MULTICRITERIAL OPTIMIZATION FOR QUEUEING SYSTEMS WITH REFUSALS OPERATING AT COMPETITIVE INPUT FLOWS

open access: yesВестник Кемеровского государственного университета, 2013
The article describes an approach to optimizing of the functioning of queueing systems based on the principles of sustainability, profitability and equity in the allocation of support requests from different clients.
V. A. Chekmenev, T. D. Сhekmeneva
doaj  

Use Cases of Machine Learning in Queueing Theory Based on a GI/G/K System

open access: yesMathematics
Machine learning (ML) in queueing theory combines the predictive and optimization capabilities of ML with the analytical frameworks of queueing models to improve performance in systems such as telecommunications, manufacturing, and service industries. In
Dmitry Efrosinin   +3 more
doaj   +1 more source

Modelling the Probability Density Function of IPTV Traffic Packet Delay Variation

open access: yesAdvances in Electrical and Electronic Engineering, 2012
This article deals with modelling the Probability density function of IPTV traffic packet delay variation. The use of this modelling is in an efficient de-jitter buffer estimation.
Michal Halas, Stanislav Klucik
doaj   +1 more source

Forecasting Airport Passenger Flows Using Mobile Network Data: Insights for Sustainable Mobility and Strategic Infrastructure Planning

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Airports are strategic and environmental nodes in global transport systems where rapid passenger growth challenges capacity, sustainability, and resilience. This study uses anonymized mobile network data to analyze and forecast passenger dynamics at Lisbon Airport, Portugal, linking data‐driven insights to sustainable mobility and ...
João Carlos Ferreira   +3 more
wiley   +1 more source

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