Results 61 to 70 of about 8,617 (316)

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

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  

Analytical Call Center Model with Voice Response Unit and Wrap-Up Time

open access: yesAdvances in Electrical and Electronic Engineering, 2015
The last twenty years of computer integration significantly changed the process of service in a call center service systems. Basic building modules of classical call centers – a switching system and a group of humans agents – was extended with other ...
Petr Hampl
doaj   +1 more source

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

open access: yesChemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler   +3 more
wiley   +1 more source

MULTICRITERIAL OPTIMIZATION OF PRIORITY QUEUEING SYSTEMS OPERATING AT COMPETITIVE INPUT FLOWS

open access: yesВестник Кемеровского государственного университета, 2014
The paper describes an approach to optimizing the functioning of queueing systems based on the principles of sustainability, profitability and equity in the allocation of support requests from different clients. The multicriterial optimization problem is
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

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  

EventFlow: Real‐time neuromorphic event‐driven classification of two‐phase boiling flow regimes

open access: yesDroplet, EarlyView.
We present a real‐time flow regime classification framework that integrates neuromorphic event‐driven sensing with deep recurrent neural networks. Unlike traditional frame‐based approaches, our system captures sparse event streams from an event‐based camera, representing only the dynamic brightness changes at the individual pixel level.
Sanghyeon Chang   +9 more
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  

On some queueing systems with server vacations, extended vacations, breakdowns, delayed repairs and stand-bys

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This research investigates a batch arrival queueing system with a Bernoulli scheduled vacation and random system breakdowns.
Khalaf, Rehab
core  

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