Searched for: subject%3A%22Operations%255C+Research%22
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Janus, Steyn (author)
This study presents an innovative algorithm designed to optimise the layout of floating offshore wind farms (FOWFs), addressing inter-array cable length and the number of anchor structures required. This research is particularly noteworthy as no prior work has been conducted on wind farm layout optimisation for FOWFs. The Local-Search-Inspired...
master thesis 2024
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Hyde, Edward (author)
As the aviation industry has agreed on the goal of achieving net-zero CO2 emissions by 2050, various mitigation strategies are being deployed and developed. This paper focuses on reducing emissions at airports by towing aircraft instead of taxiing with their main engines; dispatch towing. This is done by developing a model to optimise the...
master thesis 2024
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Bombelli, A. (author), Atasoy, B. (author), Fazi, S. (author), Boschma, D. (author)
This book serves as a comprehensive roadmap for navigating the realm of Operations Research (OR). From laying down fundamental mathematical principles to crafting precise modeling techniques and their solution methods, it culminates in a panoramic view of OR models mirroring real-world operations. Delving into diverse applications-from...
book 2024
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PATEL, himanshu (author)
Equalized involvement of stakeholders in decision-making processes (DMP) allows them to achieve a balanced outcome, when aiming to create value for each participant. However, as the number of stakeholders increases, traditional methods of interactive engagement become more complex, often leading to unbalanced solutions. Identifying such balanced...
master thesis 2023
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Chen, Szu-Tung (author)
Inspired by the vision of fully autonomous airside operations at Schiphol airport, this study aims to contribute to the short-term goal of automated aircraft ground handling. In this research, we design and evaluate a multi-agent system for planning of automated ground handling. There are two main components in the system, task allocation...
master thesis 2022
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Sommers, Daniel (author)
To better govern inventory control of spare parts in tandem with scheduling of maintenance operations in a railway setting, a Railway Spare Inventory & Maintenance Scheduling (R-SIMS) model is developed. To suit the railway industry setting the model includes an inventory control strategy which envokes continuous monitoring and a reorder...
master thesis 2021
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Billet, Thomas (author)
Fleet planning is a complex problem which consists of selecting an optimal fleet of vehicles at the right moment in time to serve a specific demand while subject to different operational constraints. While Operations Research (OR) has mainly focused on long-term strategical fleet planning optimisation, certain operators such as humanitarian air...
master thesis 2021
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van Oosterom, Simon (author)
In this thesis, we consider investment optimization for airport infrastructure which is required charge and refuel electric and hydrogen powered aircraft using battery and hydrogen canister swaps respectively. The task at hand is to determine the most cost-effective infrastructure, consisting of spare batteries, and battery chargers for electric...
master thesis 2021
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Martini Jimenez, Daniel (author)
Condition-based maintenance (CBM) is emerging in the airline industry as a revolutionary concept that could potentially increase the efficiency of aircraft operations. The adoption of CBM strategies is not yet widespread due to the stringent requirements imposed by aviation authorities and the fact that the prognostic and health management (PHM)...
master thesis 2021
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Hultermans, Thomas (author)
The buildup phase at KLM Cargo requires cumbersome planning actions because of a slow data handover at the warehouse and an uncertain initial state of the buildup process at the beginning of the shift. This study presents a model to improve scheduling of future buildup shifts according to flight departure times of KLM. The most important...
master thesis 2021
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Dekker, Mark M. (author), van Lieshout, Rolf N. (author), Ball, Robin C. (author), Bouman, Paul C. (author), Dekker, Stefan C. (author), Dijkstra, Henk A. (author), Goverde, R.M.P. (author), Huisman, Dennis (author), Panja, Debabrata (author), Schaafsma, Alfons A.M. (author), van den Akker, Marjan (author)
Railway systems occasionally get into a state of being out-of-control, meaning that barely any train is running, even though the required resources (infrastructure, rolling stock and crew) are available. Because of the large number of affected resources and the absence of detailed, timely and accurate information, currently existing...
journal article 2021
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Zhang, Yepin (author)
When making a decision between conducting owner and contractor mining, it is common for the mine owner to take into consideration a number of factors to assess the suitability of either method for any particular project. This research identifies and investigates the key factors by means of literature review and questionnaires and interviews with...
master thesis 2020
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Muhammad Fareza, Reza (author)
The shipbuilding industry is not a standalone industry. It integrates with the shipping market, and therefore one characteristic of the shipbuilding industry is complexity. Competitiveness is a multi-dimensional concept that can be measured in numerous ways. The author found that these multi-dimensional concepts can better be translated into...
master thesis 2020
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Bai, N. (author), Nourian, Pirouz (author), Xie, Anping (author), Pereira Roders, A. (author)
As one of the most important areas in the Palace Museum, Beijing, China, the Hall of Mental Cultivation had suffered from overcrowding of visitors before it was closed in 2016 for conservation. Preparing for the reopening in 2020, the Palace Museum decided to take the chance and initiate finer-grained tourism management in the Hall. This...
conference paper 2020
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Gomes, S.L. (author)
Water resources in the Ganges delta are undergoing drastic change as a result of urbanisation. Increasing demand for water due to urban expansion around cities like Kolkata (India) and Khulna (Bangladesh) is affecting groundwater access in nearby peri-urban communities. Peri-urban areas lie outside the formal purview of urban institutions, while...
doctoral thesis 2019
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van Halem, Pieter (author)
This thesis introduces a new algorithm for optimising shipping routes within a dredging project. Highly dynamic and time-dependent hydrodynamic features influence shipping routes. Due to the complex interactions between the horizontal tide, vertical tide, stratifying forces, wind-driven forces, and limited water-depth, shipping routes were...
master thesis 2019
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Hu, Q. (author)
This thesis discusses the connection between container terminals and the hinterland railway system. Mathematical models are proposed to formulate the various relevant operations and methods are developed to provide solutions to improve the system performance. This thesis could provide suggestions to decision maker(s) regarding to the improvement...
doctoral thesis 2019
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Diran, Devin (author)
To convey the energy coming from offshore wind-farms to the end-users, a network of offshore transmission platforms with sub-sea cables is in place, functioning as the supply chain for electricity. This research addresses the development of an optimization model, OptiFleet, which targets the problem of vessel fleet management to perform the...
master thesis 2018
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den Uijl, Joris (author)
A strategy for completing a dredging project is called a working method. The goal of a tender study is to find an optimal working method for a specific project. To find the optimal working method, the full range of possible solutions should be investigated. However, the available resources during a tender study are often limited and trends in...
master thesis 2018
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Dekker, Mark M. (author), van Lieshout, Rolf N. (author), Ball, Robin C. (author), Bouman, Paul C. (author), Dekker, Stefan C. (author), Dijkstra, Henk A. (author), Goverde, R.M.P. (author), Huisman, Dennis (author), Panja, Deb (author), Schaafsma, Alfons A.M. (author), van den Akker, Marjan (author)
Railway systems occasionally get into a state of out-of-control, meaning that there is barely any train is running, even though the required resources (infrastructure, rolling stock and crew) are available. These situations can either be caused by large disruptions or unexpected propagation and accumulation of delays. Because of the large number...
conference paper 2018
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