Results 51 to 60 of about 957 (221)
The Canadian Journal of Chemical Engineering, Volume 104, Issue 2, Page 569-593, February 2026.Abstract Component failures in integrated heating and cooling networks impact reliable energy supply. This work studies reliability of heating and cooling systems constrained either by the annualized capital cost (ACC) or by the annualized total cost (ATC).
Arman Khani, Vladimir Mahalec
wiley +1 more source
The projected pairwise multicommodity flow polyhedron
, 2001 The object of this paper is a simple characterization of the vertices and extreme rays of the undirected multicommodity flow polyhedron F, which has one variable for each channel.
C. Humes +3 more
core +1 more source
Underground Freight Transportation for Package Delivery in Urban Environments
Networks, Volume 87, Issue 1, Page 83-105, January 2026.ABSTRACT The use of underground freight transportation (UFT) is gaining attention because of its ability to quickly move freight to locations in urban areas while reducing road traffic and the need for delivery drivers. Since packages are transported through the tunnels by electric motors, the use of tunnels is also environmentally friendly. We examine
Sarah Powell +2 more
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The All-or-Nothing Multicommodity Flow Problem
SIAM Journal on Computing, 2004 We consider the all-or-nothing multicommodity flow problem in general graphs. We are given a capacitated undirected graph G=(V,E,u) and set of k pairs s1t1, s2t2, …, sktk. Each pair has a unit demand. The objective is to find a largest subset S of 1,2,…,k such that for every i in S we can send a flow of one unit between si and ti.
Chandra Chekuri +2 more
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Journal of Advanced Transportation, Volume 2026, Issue 1, 2026.Since 2015, China’s railway freight volume has steadily increased; however, the transportation capacity of the existing road network cannot fully adapt to the pressure caused by the increase in freight volume. In addition, the limitations of the current traffic flow adjustment system pose a significant risk of potential capacity bottlenecks in the road
Guangye Li +5 more
wiley +1 more source
Journal of Telecommunications and Information Technology, 2016 The paper presents a practical approach to calculating intra-domain paths within a domain of a content-aware network (CAN) that uses source routing. This approach was used in the prototype CAN constructed as a part of the Future Internet Engineering ...
Paweł M. Białoń
doaj +1 more source
Multicommodity flows in cycle graphs
Discrete Applied Mathematics, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Drayage Routing Problems: A Comprehensive Survey and a New Compact Model
Australian &New Zealand Journal of Statistics, Volume 67, Issue 4, Page 491-526, December 2025.ABSTRACT Drayage involves short‐distance container trucking, a crucial part of intermodal transportation that fills the gap between long‐haul transportation modes and inland facilities. Because of its high costs, drayage has been increasingly drawing the attention of researchers and practitioners from different disciplines, who have been exploring ...
Daniel Bustos‐Coral, Alysson M. Costa
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Integer multicommodity flows with reduced demands [PDF]
, 1993 Given a supply graph G=(V, E), a demand graph H=(T, D), edge capacities c: E ↦ ℕ and requests r: D ↦ ℕ, we consider the problem of finding integer multiflows subject to c, r. Korach and Penn constructed approximate integer multiflows for planar graphs, but no results were known for the general case.
Srivastav, Anand, Stangier, Peter
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Incorporating Fairness Into the Gateway‐Based Risk Mitigation Policy for Hazmat Transport
Networks, Volume 85, Issue 2, Page 205-222, March 2025.ABSTRACT In hazardous material transport on road networks, two conflicting objectives must be addressed simultaneously: minimizing risk and minimizing cost. Risk mitigation policies may yield as a secondary outcome uneven flow distribution on the network. This study empowers an existing risk mitigation policy based on gateways (GBP) to improve fairness.
Paola Cappanera, Maddalena Nonato
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