Results 11 to 20 of about 21,404 (260)

A New Robust Mathematical Model for the Multi-product Capacitated Single Allocation Hub Location Problem with Maximum Covering Radius [PDF]

open access: yesInternational Journal of Supply and Operations Management, 2017
This paper presents a new robust mathematical model for the multi-product capacitated single allocation hub location problem with maximum covering radius.
Mahdi Alinaghian   +2 more
doaj   +1 more source

Outstanding prognostic value of novel ferroptosis-related genes in chemoresistance osteosarcoma patients

open access: yesScientific Reports, 2022
Osteosarcoma (OS) is the most common bone-derived tumor, and chemoresistance is a pivotal factor in the poor prognosis of patients with OS. Ferroptosis, as an emerging modality of regulated cell death, has demonstrated potential value in tumor ...
Jiazheng Zhao   +4 more
doaj   +1 more source

Presenting a Model for Locating and Allocating Multi-Period Hubs and Comparing It With a Multi-Objective Imperialist Competitive Algorithm

open access: yesFoundations of Computing and Decision Sciences, 2023
Recently, air pollution has received much attention as a result of reflections on environmental issues. Accordingly, the hub location problem (HLP) seeks to find the optimal location of hub facilities and allocate points for them to meet the demands ...
Chen Tzu-Chia   +5 more
doaj   +1 more source

Capacitated Multiple Allocation Hub Covering Flow Problem

open access: yesMANAS: Journal of Engineering, 2021
The aim of the Capacitated Multiple Allocation Hub Covering Flow Problem is to find theoptimal design for hub-and-spoke networks while taking into account hub opening and demandrouting costs.
Orhan Feyzioğlu, Nazmi Sener
doaj  

The single-assignment hub covering problem: Models and linearizations [PDF]

open access: yesJournal of the Operational Research Society, 2003
Summary: We study the hub covering problem which, so far, has remained one of the unstudied hub location problems in the literature. We give a combinatorial and a new integer programming formulation of the hub covering problem that is different from earlier integer programming formulations.
Kara, B.Y., Tansel, B.C.
openaire   +3 more sources

Investigating the impact of distance on the use of primary care extended hours

open access: yesInternational Journal of Population Data Science, 2021
Introduction Poor access to general practice services has been attributed to increasing pressure on the health system more widely and low satisfaction among patients.
Jen Murphy   +3 more
doaj   +1 more source

Operating Range Extension of an Open Impeller Centrifugal Compressor Stage Utilising 3D Diffuser End Wall Contouring

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2020
State-of-the-art centrifugal compressor units utilised in pipeline and in energy storage applications face the challenge of flexible and highly efficient operation.
Daniel Hermann   +3 more
doaj   +1 more source

A hub covering model for cargo delivery systems [PDF]

open access: yesNetworks, 2006
AbstractThe hub location problem appears in a variety of applications including airline systems, cargo delivery systems, and telecommunication network design. When we analyze the application areas separately, we observe that each area has its own characteristics. In this research we focus on cargo delivery systems.
YETİŞ, BAHAR, TAN, PINAR ZARİF
openaire   +3 more sources

Detection of Hub QTLs Underlying the Genetic Basis of Three Modules Covering Nine Agronomic Traits in an F2 Soybean Population

open access: yesAgronomy, 2022
Deciphering the genetic basis underlying agronomic traits is of importance for soybean improvement. However, covariation, modulated by genetic correlations between complicated traits via hub QTLs, commonly affects the efficiency and accuracy of soybean ...
Mengmeng Fu   +8 more
doaj   +1 more source

A Multimodal Passenger-and-Package Sharing Network for Urban Logistics

open access: yesJournal of Advanced Transportation, 2020
This paper envisions a multimodal passenger-and-package sharing (PPS) network for urban logistics integrating metro, taxi, and truck. A hub-and-spoke structure is designed including hubs located at metro stations and service stores connected to the hubs.
Yuxiong Ji   +4 more
doaj   +1 more source

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