Searched for: subject%3A%22hardness%22
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Neele, Maurits (author)
High-precision mechatronic equipment often benefits from or even needs vibration isolation to function within specification. Examples of such equipment include metrology devices, space instrumentation and lithography assemblies. Vibration isolation is often the function of the mounting between the equipment and the floor or rest of the machine....
master thesis 2024
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Li, J. (author)
Around 10% of the population will have to go through a catheterization procedure for the treatment of a cardiovascular disease at a certain stage of their lives. During such a procedure, smart catheters will be the "eyes and ears" of the surgeons, significantly improving the diagnosis and treatment. However, there have been very limited...
doctoral thesis 2024
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ter Hofstede, R. (author), Witte, Sterre (author), Kamermans, Pauline (author), van Koningsveld, M. (author), Tonk, Linda (author)
The native European flat oyster (Ostrea edulis) is an ecosystem engineer providing important ecosystem services, but became nearly extinct from the North Sea due to diseases and overfishing. There's a growing interest to restore these oyster reefs for their valuable contribution in re-establishing a rich ecosystem in the North Sea. In order...
journal article 2024
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Thillaigovindarasu, Raghavi (author)
Mangrove forests are important wetland ecosystems that inhabit intertidal zones within tropical and sub-tropical latitudes. They offer a diverse array of ecosystem services, including coastal protection and carbon sequestration. Despite their significance, global mangrove cover has declined in recent decades, prompting various restoration...
master thesis 2023
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van Kleinwee, Dennis (author)
Qualification of the mechanical properties of Wire Arc Additive Manufacturing (WAAM) products is an essential step for a successful introduction of this process in industry. To realise this, the relationship between processing conditions, the thermal history and the resulting mechanical properties needs to be established. Hardness is an easy-to...
master thesis 2023
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Tudor, Iarina (author)
This paper provides a novel method of solving the resource-constrained project scheduling problem (RCPSP) with logical constraints (RCPSP-log) using satisfiability (SAT) solving and integrating variable selection heuristics. The extension provides two additional precedences: OR constraints and bidirectional (BI) relations, making it possible to...
bachelor thesis 2023
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Lenssen, Tijs (author)
The Variable State Independent Decaying Sum (VSIDS) heuristic is one of the most effective variable selection heuristics for Conflict-Driven Clause-Learning (CDCL) SAT solvers. It works by keeping track of the activity values for each variable, which get bumped and decayed based on conflict analysis. These activity values usually start out...
bachelor thesis 2023
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Huisman, Tim (author)
Survival analysis revolves around studying and predicting the time it takes for a particular event to occur. In clinical trials on terminal illnesses, this is usually the time from the diagnosis of a patient until their death. Estimating the odds of survival of a new patient can be done by analyzing survival data from past patients in similar...
bachelor thesis 2023
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Kievits, Joris (author)
The number of satellites in orbit is increasing at an accelerating pace. One major issue that currently hinders the range of satellite applications is data analysis. Most data is transmitted back to ground stations for analysis resulting in bandwidth-related issues, or the processing is performed on board, necessitating large computational power...
master thesis 2023
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Cruz Saldivar, M. (author)
In the vast domain of biomedical engineering, the challenge of developing synthetic materials that can replace damaged tissues has proved a daunting task. Millions of years of adaptation have provided natural tissues with multiple strategies that yield highly efficient mechanical properties that are not found in human-made materials. The first...
doctoral thesis 2023
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Ornaghi, Heitor Luiz (author), Monticeli, F.M. (author), Agnol, Lucas Dall (author)
n the past decades, there has been a significant increase in the use of polymers for biomedical applications. The global medical polymer market size was valued at USD 19.92 billion in 2022 and is expected to grow at a CAGR of 8.0% from 2023 to 2030 despite some limitations, such as cost (financial limitation), strength compared to metal plates...
journal article 2023
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Bentert, Matthias (author), Schestag, J. (author), Sommer, Frank (author)
We study a generalization of the classic Spanning Tree problem that allows for a non-uniform failure model. More precisely, edges are either safe or unsafe and we assume that failures only affect unsafe edges. In Unweighted Flexible Graph Connectivity we are given an undirected graph G = (V,E) in which the edge set E is partitioned into a set...
conference paper 2023
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Garvardt, Jaroslav (author), Renken, Malte (author), Schestag, J. (author), Weller, Mathias (author)
We consider the problem of orienting a given, undirected graph into a (directed) acyclic graph such that the in-degree of each vertex ν is in a prescribed list λ(ν). Variants of this problem have been studied for a long time and with various applications, but mostly without the requirement for acyclicity. Without this requirement, the problem...
conference paper 2023
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Bornheim, A. (author), Lustermann, W. (author), Stachon, K. (author), Reales Gutiérrez, G. (author), Benaglia, A. (author), De Guio, F. (author), Ghezzi, A. (author), Lucchini, M. T. (author), Malberti, M. (author)
The barrel section of the novel MIP Timing Detector (MTD) will be constructed as part of the upgrade of the CMS experiment to provide a time resolution for single charged tracks in the range of 30-60 ps using LYSO:Ce crystal arrays read out with Silicon Photomultipliers (SiPMs). A major challenge for the operation of such a detector is the...
journal article 2023
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Mundaca, Luis (author), Rotmann, Sea (author), Ashby, Kira (author), Karlin, Beth (author), Butler, Danielle (author), Sequeira, Miguel Macias (author), Gouveia, João Pedro (author), Palma, Pedro (author), Realini, Anna (author), Maggiore, Simone (author), Feenstra, M.H. (author)
Hard-to-reach (HTR) energy users encompass individuals who are physically difficult to reach, underserved, or challenging to engage and motivate in demand-side energy programmes. Given a mix of societal challenges (e.g. inequity, energy poverty, decarbonisation, the COVID-19 pandemic), HTR energy users are receiving increasing attention. However...
journal article 2023
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Kooij, Robert (author), Achterberg, M.A. (author)
The effective graph resistance, also known as the Kirchhoff index, is metric that is used to quantify the robustness of a network. We show that the optimisation problem of minimizing the effective graph resistance of a graph by adding a fixed number of links, is NP-hard.
journal article 2023
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Liang, M. (author), He, S. (author), Gan, Yidong (author), Zhang, Hongzhi (author), Chang, Z. (author), Schlangen, E. (author), Šavija, B. (author)
This paper employs computer vision techniques to predict the micromechanical properties (i.e., elastic modulus and hardness) of cement paste based on an input of Backscattered Electron (BSE) images. A dataset comprising 40,000 nanoindentation tests and 40,000 BSE micrographs was built by express nanoindentation test and Scanning Electron...
journal article 2023
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Datsiou, Kyriaki Corinna (author), Overend, M. (author)
Patterned acid-etched glasses are frequently used in horizontal glass surfaces that may be walked on, such as floors and staircase treads. These glasses provide useful antislip properties, but the foot traffic cause contact stresses and ageing mechanisms that are poorly understood and can affect the strength of the acid-etched glass. This...
journal article 2023
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van Iersel, L.J.J. (author), Jones, M.E.L. (author), Julien, E.A.T. (author), Murakami, Yukihiro (author)
Phylogenetic networks are used to represent the evolutionary history of species. Recently, the new class of orchard networks was introduced, which were later shown to be interpretable as trees with additional horizontal arcs. This makes the network class ideal for capturing evolutionary histories that involve horizontal gene transfers. Here,...
conference paper 2023
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Vasileiadis, A. (author), Li, Yuqi (author), Lu, Yaxiang (author), Hu, Yong Sheng (author), Wagemaker, M. (author)
There are several questions and controversies regarding the Na storage mechanism in hard carbon. This springs from the difficulty of probing the vast diversity of possible configurational environments for Na storage, including surface and defect sites, edges, pores, and intercalation morphologies. In the effort to explain the observed voltage...
journal article 2023
Searched for: subject%3A%22hardness%22
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