- document
-
Jonker, Stan (author)In this thesis, we examine the kernel-based spatial random graph (KSRG) model, which is a generalisation of many known models such as long-range percolation, scale-free percolation, the Poisson Boolean model and age-based spatial preferential attachment. We construct a KSRG from a vertex set V = Z^d, assigning each vertex v ∈ V a weight Wv...master thesis 2023
- document
-
Heijnen, Sabine (author)One of the biggest challenges of the century is the fight against global warming. In all sectors people are doing their best to reduce their carbon footprints and their impact on the environment. In the energy sector this is done by making use of renewable energy sources (RES), such as wind turbines, instead of fossil fuels. This transition to...master thesis 2023
- document
-
Sui, Zhongyi (author), Wen, Yuanqiao (author), Huang, Yamin (author), Song, R. (author), Piera, Miquel Angel (author)The theoretical analysis of maritime accidents is a hot topic, but the time characteristics and dynamics of maritime accidents time series are still unclear. It is difficult to draw a clear conclusion from the cause analysis, so the accident is difficult to be predicted. To bridge this gap, this research analyzes the characteristics and...journal article 2023
- document
-
Ofe, H.A. (author), de Reuver, G.A. (author), Janssen, M.F.W.H.A. (author), Nederstigt, Bouke (author)Managers increasingly seek ways to explore insights from data for business improvements and innovation. Data Analytics (DA) platforms hold promise for businesses, especially small businesses that cannot afford tailor-made proprietary analytics services. DA platforms offer generic analytics features to a pool of businesses, saving costs and...conference paper 2023
- document
-
Mao, Qi (author), Wang, Haiqing (author), Yang, M. (author), Hu, Jason (author)Safety instrumented systems(SIS) have been widely used in petroleum and chemical plants to detect and respond to dangerous events and prevent them from developing into accidents. The in-service time of SIS does not exceed its useful life is one of the crucial assumptions of IEC functional safety standards. The testing method recommended in the...journal article 2023
- document
-
Chen, E. (author), Zhu, Yan (author), Liang, K. (author), Yin, Hongjian (author)The increasing popularity of remote Cloud File Sharing (CFS) has become a major concern for privacy breach of sensitive data. Aiming at this concern, we present a new resource sharing framework by integrating enterprise-side Attribute-Based Access Control/eXtensible Access Control Markup Language (ABAC/XACML) model, client-side Ciphertext...journal article 2023
- document
-
Mues genannt Koers, L. (author), McNeil, S. W. (author), Radchenko, V. (author), Paulssen, E. (author), Hoehr, C. (author)We present the production of <sup>58m</sup>Co on a small, 13 MeV medical cyclotron utilizing a siphon style liquid target system. Different concentrated iron(III)-nitrate solutions of natural isotopic distribution were irradiated at varying initial pressures and subsequently separated by solid phase extraction chromatography. The radio cobalt...journal article 2023
- document
-
Fokkink, R.J. (author), Meester, L.E. (author), Pelekis, Christos (author)We want to find the convex combination S of iid Bernoulli random variables that maximizes P(S ≥ t) for a given threshold t. Endre Csóka conjectured that such an S is an average if t ≥ p, where p is the success probability of the Bernoulli random variables. We prove this conjecture for a range of p and tjournal article 2023
- document
-
Cong, Yangfan (author), Yu, Suihuai (author), Chu, Jianjie (author), Su, Zhaojing (author), Huang, Y. (author), Li, Feilong (author)Eliciting user needs from mass online reviews is playing a significant role in the product iteration process. Efficient user needs elicitation does achieve considerable benefits for maintaining higher competitiveness and a speedier lifecycle. However, there is inevitably an online review scarcity about new products due to the short time on...journal article 2023
- document
-
Wilbers, Julia (author)Purpose. Distal radius fractures are common fractures of the wrist. These fractures are often displaced and need reduction, after adequate reduction, the patients will have follow-up X-rays to check if the fracture stays stable. This is important because surgery might be required if the fracture becomes unstable. This can lead to delayed surgery...master thesis 2022
- document
-
Li, Zhuoheng (author)Programmers usually write test cases to test onboard software. However, this procedure is time-consuming and needs sufficient prior knowledge. As a result, small satellite developers may not be able to test the software thoroughly. <br/> <br/>A promising direction to solve this problem is reinforcement learning (RL) based testing. It searches...master thesis 2022
- document
-
Bauer, Marlinda (author)Due to climate change, the growth in renewable energy is still accelerating and reaching new records each year. Not everything can be electrified, hence, the production of green hydrogen as an energy vector is gaining momentum. However, lowest cost hydrogen will not always be produced at the demand centres, necessitating transport of hydrogen...master thesis 2022
- document
-
Xu, Guo (author)Depth sensing technology has developed rapidly recently due to its broad applications. Time-of-Flight (ToF) is a popular technology in depth sensing because of its advantages in high measuring accuracy and low complexity in image processing. ToF technologies are divided into two kinds: indirect time-of-flight (iToF) and direct Time-of-Flight ...master thesis 2022
- document
-
Di Mascio, S. (author)The usage of terrestrial processors in space applications is not straightforward, as processors in space face unique challenges due to the effects of the space environment, like ionizing radiation causing Single Event Effects (SEEs). In the nineties, the European Space Agency chose the Scalable Processor ARChitecture (SPARC) Instruction Set...doctoral thesis 2022
- document
-
Padhi, Abhilash (author)Coffee farmers and producers in Kerala (India) face a serious obstacle in their pursuit of a self-sustaining coffee processing technology and fuel deficiency. Research indicates that coffee, as one of the largest industries, generates a huge amount of waste, namely Spent Coffee Grounds (SCGs). This study aims to evaluate the feasibility and...master thesis 2022
- document
-
Houtkoop, Koen (author)Nuclear power is currently not a commonly used option in commercial marine applications, despite its potential for significant emission reductions. This thesis is an overview of what has been done before, and what the potential is of modern marine nuclear power applications considering the long-term goals of harmful emission reduction in the...master thesis 2022
- document
-
van Breugel, Luuk (author)Small modular reactors are a new type of nuclear reactors with multiple advantages over conventional nuclear reactors. Due to their smaller size, they are safer than conventional nuclear reactors. They can be produced in factories, which solves the problem of nuclear energy projects going over budget due to delays at the installation site. With...master thesis 2022
- document
-
Da Costa Gomez, Alex (author)As freshwater scarcity has become one of the most important environmental and social issues of the 21st century, the way the built environment interacts with water must be reconsidered. Today’s urban water cycle in Curaçao is characterized by linear, centralized, polluting, costly, time and energy consuming and does not contribute to cultural...master thesis 2022
- document
-
Ioannidou, C. (author)The focus of the present work is on the micro-alloying element vanadium, which is well known for providing precipitation strengthening to steels and which has, therefore, attracted a lot of interest the last decades. Vanadium carbide precipitation can take place in the migrating austenite/ferrite interface during the austenite-to-ferrite phase...doctoral thesis 2022
- document
-
Mingione, Fabio (author)Reaction wheels are often the main contributor to microvibrations on satellites. These vibrations are a source of pointing errors and therefore need to be limited as much as possible. The miniaturization trend in the space industry and universities fostered the production of very small reaction wheels, suited to Cubesat and PocketQube scales. A...master thesis 2022