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Browsing NTNU Open by Author "Christiansen, Marielle"

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Now showing items 1-20 of 38

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    • A Combined Liquefied Natural Gas Routing and Deteriorating Inventory Management Problem 

      Ghiami, Yousef; Van Woensel, Tom; Christiansen, Marielle; Laporte, Gilbert (Chapter, 2015)
      Liquefied Natural Gas (LNG) is becoming a more crucial source of energy due to its increased price competitiveness and environmental friendliness. We consider an inventory routing problem for inland distribution of LNG ...
    • A Decision Support Model for Routing and Scheduling a Fleet of Fuel Supply Vessels 

      Christiansen, Marielle; Fagerholt, Kjetil; Rachaniotis, Nikolaos P.; Tveit, Ingeborg; Øverdal, Marte Viktoria (Chapter, 2015)
      We consider a real fuel supply vessel routing and scheduling problem faced by a Hellenic oil company with a given fleet of fuel supply vessels used to supply customer ships outside Piraeus Port. The supply vessels are ...
    • A maritime inventory routing problem with stochastic sailing and port times 

      Agra, Agostinho; Christiansen, Marielle; Delgado, Alexandrino; Hvattum, Lars Magnus (Journal article; Peer reviewed, 2015)
      This paper describes a stochastic short sea shipping problem where a company is responsible for both the distribution of oil products between islands and the inventory management of those products at consumption storage ...
    • A Maritime Inventory Routing Problem: Discrete Time Formulations and Valid Inequalities 

      Agra, Agostinho; Andersson, Henrik; Christiansen, Marielle; Wolsey, L (Journal article; Peer reviewed, 2013)
      A single-product maritime inventory routing problem (MIRP) is studied in which the production and consumption rates vary over the planning horizon. The problem involves a heterogeneous fleet and multiple production and ...
    • A New Formulation for the Combined Maritime Fleet Deployment and Inventory Management Problem 

      Dong, Bo; Bektas, Tolga; Chandra, Saurabh; Christiansen, Marielle; Fagerholt, Kjetil (Journal article; Peer reviewed, 2017)
      This paper addresses the fleet deployment problem and in particular the treatment of inventory in the maritime case. A new model based on time-continuous formulation for the combined maritime fleet deployment and inventory ...
    • A New Optimization-based Algorithm for a Maritime Inventory Routing Problem 

      Myklebust, Trine Nord; Foss, Elise (Master thesis, 2016)
      Maritime transportation has a long tradition of taking a dominant role in the global trade. Remarkable improvements in the efficiency of maritime transportation have been made in the last 50 years, but still significant ...
    • Analysing the modal shift from road-based to coastal shipping-based distribution – a case study of outbound automotive logistics in India 

      Chandra, Saurabh; Christiansen, Marielle; Fagerholt, Kjetil (Peer reviewed; Journal article, 2019)
      This paper analyses the modal shift from a primary road-based to coastal shipping-based freight distribution. A mathematical model is developed to optimize the coastal shipping route planning under a multimodal distribution ...
    • Block scheduling at magnetic resonance imaging labs 

      Gullhav, Anders N.; Christiansen, Marielle; Nygreen, Bjørn; Aarlott, Mats Mathisen; Medhus, Jon Erik; Skomsvoll, Johan Fredrik; Østbyhaug, Per Olav (Journal article; Peer reviewed, 2017)
      This paper considers a tactical block scheduling problem at a major Norwegian hospital. Here, specific patient groups are reserved time blocks for scanning at a heterogeneous set of Magnetic Resonance Imaging (MRI) labs. ...
    • Combined maritime fleet deployment and inventory management with port visit flexibility in roll-on roll-off shipping 

      Dong, Bo; Christiansen, Marielle; Fagerholt, Kjetil; Bektas, Tolga (Peer reviewed; Journal article, 2020)
      We consider a combined fleet deployment and inventory management problem in Roll-on Roll-off shipping. Along given trade routes there are ports with inventories that should be kept within their limits. Current planning ...
    • Det Daglige Operasjonstimeplanproblemet - Beslutningsstøtte for generering av daglige operasjonstimeplaner for elektive pasienter 

      Husø, Signe Marie (Master thesis, 2015)
      Sykehus står i dag ovenfor et økende press på effektivitet og kostnadsbesparelser. For å øke effektiviteten og redusere kostnadene uten å påvirke kvaliteten på pasientbehandlingen, er sykehus avhengig av god planlegging. ...
    • Green Tramp Shipping Routing and Scheduling: Effects of Market-Based Measures on CO2 Reduction 

      Wang, Xin; Norstad, Inge; Fagerholt, Kjetil; Christiansen, Marielle (Chapter, 2019)
      In this chapter we examine, from a tramp ship operator’s point of view, how potential CO2 emission reduction measures impact the operational decisions and their economic and environmental consequences. Two market-based ...
    • Heuristics for a Dual-Level Stochastic Fleet Size and Mix Problem for Maintenance Operations at Offshore Wind Farms 

      Joshi, Manu; Bolstad, Kamilla Hamre (Master thesis, 2016)
      Due to high costs, the offshore wind industry is currently not economically viable on its own. For offshore wind to be a profitable future energy source, it is therefore necessary to find methods for reducing costs. ...
    • Hybrid heuristics for a short sea inventory routing problem 

      Agra, Agostinho; Christiansen, Marielle; Delgado, Alexandrino; Simonetti, Luidi (Journal article; Peer reviewed, 2014)
      We consider a short sea fuel oil distribution problem where an oil company is responsible for the routing and scheduling of ships between ports such that the demand for various fuel oil products is satisfied during the ...
    • Industrial Aspects and Literature Survey: Combined Inventory Management and Routing 

      Andersson, Henrik; Hoff, Arild; Christiansen, Marielle; Hasle, Geir; Løkketangen, Arne (Research report, 2008)
      This paper describes industrial aspects of combined inventory management and routing, and gives a comprehensive literature review of the current state of the research. First there is a classification of types of supply ...
    • Industrial Aspects and Literature Survey: Fleet Composition and Routing 

      Hoff, Arild; Andersson, Henrik; Christiansen, Marielle; Hasle, Geir; Løkketangen, Arne (Research report, 2008)
      The purpose of this paper is to describe industrial aspects of combined fleet composition and routing in maritime and road-based transportation, and to present the current status of research in the form of a comprehensive ...
    • Inventory routing with pickups and deliveries 

      Archetti, Claudia; Christiansen, Marielle; Speranza, M. Grazia (Journal article; Peer reviewed, 2018)
      This paper introduces a class of problems which integrate pickup and delivery vehicle routing problems (PDPs) and inventory management, and we call them inventory routing problems with pickups and deliveries (IRP-PD). We ...
    • Layered Formulation for the Robust Vehicle Routing Problem with Time Windows 

      Agra, Agostinho; Christiansen, Marielle; Figueiredo, Rosa; Hvattum, Lars Magnus; Poss, Michael; Requejo, Cristina (Journal article; Peer reviewed, 2012)
      This paper studies the vehicle routing problem with time windows where travel times are uncertain and belong to a predetermined polytope. The objective of the problem is to find a set of routes that services all nodes of ...
    • Maritime crude oil transportation – A split pickup and split delivery problem 

      Hennig, Frank; Nygreen, Bjørn; Christiansen, Marielle; Fagerholt, Kjetil; Furman, Kevin C; Song, Jinhwa; Kocis, Gary R; Warrick, Philip H (Journal article; Peer reviewed, 2012)
      The maritime oil tanker routing and scheduling problem is known to the literature since before 1950. In the presented problem, oil tankers transport crude oil from supply points to demand locations around the globe. The ...
    • Maritime fleet deployment in ro-ro shipping under inventory constraints 

      Chandra, Saurabh; Fagerholt, Kjetil; Christiansen, Marielle (Journal article; Peer reviewed, 2015)
      We present a tactical maritime fleet deployment problem in roll-on roll-off (ro-ro) liner shipping scenario, which deals with optimally assigning planned voyages to the available vessels in a fleet to determine the routing ...
    • A MIP based local search heuristic for a stochastic maritime inventory routing problem 

      Agra, Agostinho; Christiansen, Marielle; Hvattum, Lars Magnus; Rodrigues, Filipe (Chapter, 2016)
      We consider a single product maritime inventory routing problem in which the production and consumption rates are constant over the planning horizon. The problem involves a heterogeneous fleet of ships and multiple production ...

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