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van der Schelling, Martin (author)Algorithmic optimization is a viable tool for solving complex materials engineering issues. In this study, a data-scarce Bayesian optimization model was developed to research the composition of bio-based composites. The proof-of-concept program adjusts the natural materials' weight ratios to optimize towards user-defined mechanical properties....master thesis 2021
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Storm, Joep (author)Designing engineering structures relies on accurate numerical simulations to predict the behaviour of a structure before its realization. In the design process, many variables influence the final structure. There is an incentive for optimizing the design based on the desire for cheaper structures and less material usage. Although a wide variety...master thesis 2021
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Boekweit, Stan (author)During operation aircraft brakes degrade due to wear. This degradation can be continuously monitored using brake degradation sensors. Using this monitored degradation data the remaining useful life of the brakes can be estimated by means of a prognostic model based on a Gamma probability distribution. Using the remaining useful life estimations...master thesis 2021
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Dun, H. (author), Tiberius, C.C.J.M. (author), Diouf, C.E.V. (author), Janssen, G.J.M. (author)This paper presents a methodology to design a sparse multiband ranging signal with a large virtual bandwidth, from which time delay and carrier phase are estimated by a low complexity multivariate maximum likelihood (ML) method. In the estimation model for a multipath channel, not all reflected paths are considered, and time delay and carrier...journal article 2021
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Chatterjee, Sarthak (author), Das, Subhro (author), Gonçalves Melo Pequito, S.D. (author)Solving optimization problems is a recurrent theme across different fields, including large-scale machine learning systems and deep learning. Often in practical applications, we encounter objective functions where the Hessian is ill-conditioned, which precludes us from using optimization algorithms utilizing second-order information. In this...journal article 2021
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Domhof, J.F.M. (author), Kooij, J.F.P. (author), Gavrila, D. (author)We address joint extrinsic calibration of lidar, camera and radar sensors. To simplify calibration, we propose a single calibration target design for all three modalities, and implement our approach in an open-source tool with bindings to Robot Operating System (ROS). Our tool features three optimization configurations, namely using error...journal article 2021
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- Leeuwenburgh, O. (author), Emerick, Alexandre A. (author), Jafarpour, Behnam (author), Zhang, Dongxiao (author), Luo, Xiaodong (author) contribution to periodical 2021
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Loukogeorgaki, Eva (author), Michailides, Constantine (author), Lavidas, G. (author), Chatjigeorgiou, Ioannis K. (author)In this paper, we determine optimum layouts of a cluster of oblate spheroidal heaving point absorbers in front of a wall, that maximize the annual averaged power absorbed by the cluster, while satisfying specific spatial constraints. An iterative optimization process is developed by coupling a hydrodynamic model with a genetic algorithms solver....conference paper 2021
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Kramer, Timothy (author)Nowadays, low-duty CNC machines use the conventional belt-driven system, which works well for relatively small machines. However this design brings several complications the engineer has to account for: creep; backlash; complex assembly and more importantly the limited stiffness of the belt. This limited stiffness results in belt stretch and...master thesis 2020
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Jiang, Jinghui (author)Multi-access Edge Computing (MEC) is a concept brought up by ETSI and it places computing, storage, processing and network resources into MEC hosts and places these MEC hosts as close as needed to the telecom network edge in order to reduce service latency and bandwidth usage. For self-driving vehicles, streaming video and real-time gaming, the...master thesis 2020
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Rajabzadeh, Aydin (author)Compared to metals, composite materials offer higher stiffness, more resilience to corrosion, have lighter weights, and their mechanical properties can be tailored by their layup configuration. Despite these features, composite materials are susceptible to a diversity of damages, including matrix cracks, delamination, and fibre breakage. If...doctoral thesis 2020
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Trevisan, E. (author)Microscopic imaging has a resolution that is often far from the diffraction limit due to aberrations induced by the optics or by the sample itself. It is therefore of interest sensing these aberrations either directly or indirectly to improve image quality in post-processing or with adaptive optics. To avoid the use of extra hardware, several...master thesis 2020
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Backhausen, Jens (author)Steam utility systems supply process units with the required heat, rotational power, feed for steam methane reforming et cetera. This work is based on the steam network located at Shell Raffinaderij Nederland in Pernis.<br/>The refinery has grown over the years which has resulted in an extensive and complex steam network which interconnects old...master thesis 2020
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Vooijs, Irene (author)Tetrahedron is working on a new design for large offshore cranes that can lift higher. This is necessary due to the increasing size of offshore wind turbines, and the inability of the conventional cranes to scale up without needing a larger ship that is carrying them. To compute the forces working on the trusses of the crane structure,...master thesis 2020
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Cederhout, Q. (author)Dynamic Time Slot Management (DTSM) is a system often used in online retail to manage the delivery of goods to customers. With DTSM customers arrive over time and place orders. They get presented with a set of time slots and the customer picks the time slot in which he wants the goods to be delivered to his home. A DTSM system creates a time...master thesis 2020
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Moumdjian, S. (author)In the Netherlands, the building sector accounts for more than one third of the total primary energy consumption. In response, new regulations, BENG 2020, are implemented and applied to all new constructions as of the 1st of July 2020. Regarding the high-rise typology that is known for its extensive energy consumption, those regulations present...master thesis 2020
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Chouliara, K. (author)Usually in a renovation design process one of the first main tasks of the architect is to distribute effectively the program of requirements (spaces with their corresponding areas) in the building. To do so the architect inserts in the existing floorplan the spaces in the form of circles; the so called “bubble diagram”. The purpose of this...master thesis 2020
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Tel, Wouter (author)A model for the team time trial in road cycling is devised adn optimizations are caried out to find the most optimal strategy over different terainmaster thesis 2020
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Scavuzzo Montana, Lara (author)Mixed Integer Linear Programming (MILP) is a generalization of classical linear programming where we restrict some (or all) variables to take integer values. Numerous real-world problems can be modeled as MILPs, such as production planning, scheduling, network design optimization and many more. MILPs are, in fact, NP-hard. State-of-the-art...master thesis 2020
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Mata Perez, Esperanza (author)The goal of this thesis is to identify under which boundary conditions<br/>there is a business opportunity for an innovative electric thermal energy storage, with regards to the future electricity and heat markets. To meet this target, a novel optimization model has been developed as the main tool for the analysis of the storage and its...master thesis 2020