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Li, Z. (author), Li, G. (author), Visser, Peter (author), Homborg, A.M. (author), Gonzalez Garcia, Y. (author), Mol, J.M.C. (author)Scanning electrochemical microscopy (SECM) is employed to characterize the evolution of local electrochemical surface activity during lithium-based conversion layer formation on legacy aerospace aluminium alloy AA2024-T3. Initially, three types of studied intermetallic particles - S-, θ- and constituent phases - act as active cathodic areas....journal article 2023
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Visser, P.M. (author)Context. In a Keplerian system, a large number of bodies orbit a central mass. Accretion disks, protoplanetary disks, asteroid belts, and planetary rings are examples. Simulations of these systems require algorithms that are computationally efficient. The inclusion of collisions in the simulations is challenging but important. Aims. We intend...journal article 2023
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Casini, S. (author), Turan, E. (author), Cervone, A. (author), Monna, Bert (author), Visser, P.N.A.M. (author)This manuscript aims to present and evaluate the applicability of combining optical line-of-sight (LoS) navigation with crosslink radiometric navigation for deep-space cruising distributed space systems. To do so, a set of four distributed space systems architectures is presented, and for each of those, the applicability of the combination is...journal article 2023
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Sarris, Theodore E. (author), Tourgaidis, Stelios (author), Pirnaris, Panagiotis (author), Baloukidis, Dimitris (author), Papadakis, Konstantinos (author), Doornbos, Eelco (author), Siemes, C. (author), Visser, P.N.A.M. (author), van den IJssel, J.A.A. (author)Daedalus MASE (Mission Assessment through Simulation Exercise) is an open-source package of scientific analysis tools aimed at research in the Lower Thermosphere-Ionosphere (LTI). It was created with the purpose to assess the performance and demonstrate closure of the mission objectives of Daedalus, a mission concept targeting to perform in...journal article 2023
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Li, Z. (author), Homborg, A.M. (author), Gonzalez Garcia, Y. (author), Visser, Peter (author), Soleimani, M. (author), Mol, J.M.C. (author)The influence of ageing under ambient conditions on the corrosion protective behaviour of a lithium-based conversion layer on AA2024-T3 is studied in this work. Conversion layers aged at ambient conditions for relatively short times (0 h and 4 h), show an initial high degree of corrosion inhibition but a much lower protectiveness after the...journal article 2023
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Van Rheenen, E.S. (author), Padding, J.T. (author), Slootweg, J. C. (author), Visser, K. (author)Green hydrogen combined with PEM fuel cell systems is a viable option to meet the demand for alternative maritime fuels. However, hydrogen storage faces challenges, including low volumetric density, fire and explosion risks and transport challenges. We assessed over fifteen hydrogen carriers based on their maritime performance characteristics...journal article 2023
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Naeije, M.C. (author), Di Bella, Alessandro (author), Geminale, Teresa (author), Visser, P.N.A.M. (author)ESA’s Earth explorer mission CryoSat-2 has an ice-monitoring objective, but it has proven to also be a valuable source of observations for measuring impacts of climate change over oceans. In this paper, we report on our long-term ocean data analysis and validation and give our final words on CryoSat-2’s Geophysical Ocean Products (GOP)...journal article 2023
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Visser, Vivian (author), van Popering-Verkerk, Jitske (author), Minkman, E. (author), van Buuren, Arwin (author)In their quest to create vital cities, West European city governments stimulate citizens to self-organize in citizens' initiatives. This trend it accompanied by conflicting scientific and governmental discourses: on the one hand, citizens' initiatives are praised for giving ‘power to the people’, on the other hand, citizens' initiatives are...journal article 2023
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Visser, Mirjam (author), Schoormans, J.P.L. (author)To reduce energy consumption of households, many appliances contain eco-settings, which when used, reduce energy consumption. However, the effectivity of the eco-settings in reducing energy consumption is hardly tested. Other design for sustainable behaviour strategies like coercion and feedback might be more effective. To test the...journal article 2023
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De Breuker, R. (author), Benedictus, R. (author), Bisagni, C. (author), Boneschansker, I. (author), Melkert, J.A. (author), Snellen, M. (author), Veldhuis, L.L.M. (author), Verdegaal, F.M. (author), Visser, P.N.A.M. (author), Werij, H.G.C. (author)The Faculty of Aerospace Engineering is one of eight faculties at Delft University of Technology. It is one of the most comprehensive academic and innovation communities worldwide focusing on aerospace engineering. Its 120 professors and 70 researchers are mentoring and teaching around 2,800 BSc/MSc students and more than 350 PhD candidates...journal article 2022
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de Vos, P. (author), de van der Schueren, T.A.R. (author), Los, S. (author), Visser, K. (author)In this paper a Concept Exploration Tool (CET) for naval ship power plants is presented. The ideas behind the CET are introduced as well as the inner workings of the tool. Objective functions for different relevant design criteria (energy efficiency, emissions, signatures, etc.) are shortly discussed, after which the results for a Frigate case...journal article 2022
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Sui, Congbiao (author), de Vos, P. (author), Hopman, J.J. (author), Visser, K. (author), Stapersma, D. (author), Ding, Yu (author)Current EEDI (Energy Efficiency Design Index) regulations striving to reduce the installed engine power on new ships for a low EEDI may lead to underpowered ships having insufficient power when operating in adverse sea conditions. In this paper, the operational safety of a low-powered ocean-going cargo ship operating in adverse sea conditions...journal article 2022
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Nagayoshi, K. (author), de Wit, M. (author), Taralli, E. (author), Visser, S. (author), Ridder, M. L. (author), Gottardi, L. (author), Akamatsu, H. (author), Vaccaro, D. (author), Gao, J.R. (author)We report measured T<sub>c</sub> of superconducting Ti/Au bilayer strips with a width W varying from 5 to 50 µm. The strips were fabricated based on a Ti/Au bilayer that consists of a 41-nm-thick Ti layer to which a 280-nm-thick Au layer was added. We find that the T<sub>c</sub> drops as W decreases and the declining trend almost perfectly...journal article 2022
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van der Rest, C.R. (author), Poulsen, C.B. (author), Rouvoet, A.J. (author), Visser, Eelco (author), Mosses, P.D. (author)Specifying and mechanically verifying type safe programming languages requires significant effort. This effort can in theory be reduced by defining and reusing pre-verified, modular components. In practice, however, existing approaches to modular mechanical verification require many times as much specification code as plain, monolithic...journal article 2022
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Zwaan, A.S. (author), van Antwerpen, H. (author), Visser, Eelco (author)Fast analysis response times in IDEs are essential for a good editor experience. Incremental type-checking can provide that in a scalable fashion. However, existing techniques are not reusable between languages. Moreover, mutual and dynamic dependencies preclude traditional approaches to incrementality. This makes finding automatic approaches to...journal article 2022
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Doijode, P.S. (author), Hickel, S. (author), van Terwisga, T.J.C. (author), Visser, K. (author)This paper introduces a machine learning approach for optimizing propellers. The method aims to improve the computational cost of optimization by reducing the number of evaluations required to find solutions. This is achieved by directing the search towards design clusters with good performance, i.e. high propulsive efficiency and low...journal article 2022
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Meinke, K. (author), Stam, D.M. (author), Visser, P.M. (author)Context. In the near future, dedicated telescopes will observe Earth-like exoplanets in reflected parent starlight, allowing their physical characterization. Because of the huge distances, every exoplanet will remain an unresolved, single pixel, but temporal variations in the pixel’s spectral flux contain information about the planet’s surface...journal article 2022
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Fayolle-Chambe, M.S. (author), Dirkx, D. (author), Lainey, V. (author), Gurvits, L. (author), Visser, P.N.A.M. (author)When reconstructing natural satellites' ephemerides from space missions' tracking data, the dynamics of the spacecraft and natural bodies are often solved for separately, in a decoupled manner. Alternatively, the ephemeris generation and spacecraft orbit determination can be performed concurrently. This method directly maps the available data...journal article 2022
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Fernández, Marc (author), Peter, Heike (author), Arnold, Daniel (author), Duan, Bingbing (author), Simons, W.J.F. (author), Wermuth, Martin (author), Hackel, S.F.G. (author), Fernández, Jaime (author), Jäggi, Adrian (author), Hugentobler, Urs (author), Visser, P.N.A.M. (author), Féménias, Pierre (author)Copernicus Sentinel–1 is a C-Band Synthetic Aperture Radar (SAR) satellite mission within the European Copernicus Programme. The two satellites Sentinel-1A and -1B were launched in April 2014 and 2016, respectively. The Copernicus POD (Precise Orbit Determination) Service is responsible for the determination of orbital and auxiliary products...journal article 2022
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Visser, L. R. (author), Kootte, M.E. (author), Ferreira, A. C. (author), Sicurani, O. (author), Pauwels, E. J. (author), Vuik, Cornelis (author), Van Sark, W. G.J.H.M. (author), AlSkaif, T. A. (author)Fluctuating electricity prices offer potential economic savings for the consumption of electricity by flexible assets such as Electric Vehicles (EVs). This study proposes an operational bidding framework that minimizes the charging costs of an EV fleet by submitting an optimized bid to the day-ahead electricity market. The framework consists...journal article 2022