Searched for: subject%3A%22process%22
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document
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
document
van Biert, L. (author), Visser, K. (author)
As shipping is setting sail for a sustainable future, the application of fuel cells is increasingly regarded as a promising technology to reduce or fully eliminate emissions. Fuel cells convert the chemical energy in fuels directly into electricity, achieving high efficiencies while emitting no hazardous compounds and producing little noise...
book chapter 2022
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Schrama, F.N.H. (author), Beunder, Elisabeth M. (author), Panda, Sourav K. (author), Visser, Hessel Jan (author), Moosavi-Khoonsari, Elmira (author), Sietsma, J. (author), Boom, R. (author), Yang, Y. (author)
In hot metal desulphurisation (HMD) the slag will hold the removed sulphur. However, the iron that is lost when the slag is skimmed off, accounts for the highest costs of the HMD process. These iron losses are lower when the slag has a lower viscosity, which can be achieved by changing the slag composition. A lower slag basicity decreases the...
journal article 2021
document
Liu, Y. (author), Noomen, R. (author), Visser, P.N.A.M. (author)
We develop a Gravity Assist Mapping to quantify the effects of a flyby in a two-dimensional circular restricted three-body situation based on Gaussian Process Regression (GPR). This work is inspired by the Keplerian Map and Flyby Map. The flyby is allowed to occur anywhere above 300 km altitude at the Earth in the system of Sun-(Earth+Moon)...
journal article 2021
document
Liu, Y. (author), Noomen, R. (author), Visser, P.N.A.M. (author)
Inspired by the Keplerian Map and the Flyby Map, a Gravity Assist Mapping using Gaussian Process Regression for the fully spatial Circular Restricted Three-Body Problem is developed. A mapping function for quantifying the flyby effects over one orbital period is defined. The Gaussian Process Regression model is established by proper mean and...
journal article 2021
document
van Biert, L. (author), Godjevac, M. (author), Visser, K. (author), Aravind, P.V. (author)
Progressing limits on pollutant emissions oblige ship owners to reduce the environmental impact of their operations. Fuel cells may provide a suitable solution, since they are fuel efficient while they emit few hazardous compounds. Various choices can be made with regard to the type of fuel cell system and logistic fuel, and it is unclear...
journal article 2016
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Zhao, G. (author), Visser, P.J. (author), Vrijling, J.K. (author)
This paper describes the hydrodynamic erosion process of undisturbed clay due to the turbulent flow, based on theoretical analysis and experimental results. The undisturbed clay has the unique and complicated characteristics of cohesive force among clay particles, which are highly different from disturbed clay and non-cohesive sand. Based on...
conference paper 2011
document
Sloane, A.M. (author), Kats, L.C.L. (author), Visser, E. (author)
Attribute grammars are a powerful specification paradigm for many language processing tasks, particularly semantic analysis of programming languages. Recent attribute grammar systems use dynamic scheduling algorithms to evaluate attributes by need. In this paper, we show how to remove the need for a generator, by embedding a dynamic approach in...
journal article 2010
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Sloane, A.M. (author), Kats, L.C.L. (author), Visser, E. (author)
This paper is a pre-print of: Anthony M. Sloane, Lennart C. L. Kats, Eelco Visser. A Pure Object-Oriented Embedding of Attribute Grammars. In T. Ekman and J. Vinju, editors, Proceedings of the Ninth Workshop on Language Descriptions, Tools, and Applications (LDTA’09), Electronic Notes in Theoretical Computer Science. York, United Kingdom, March...
report 2009
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Bouman, J. (author), Rispens, S. (author), Gruber, T. (author), Koop, R. (author), Schrama, E. (author), Visser, P. (author), Tscherning, C.C. (author), Veicherts, M. (author)
One of the products derived from the gravity field and steady-state ocean circulation explorer (GOCE) observations are the gravity gradients. These gravity gradients are provided in the gradiometer reference frame (GRF) and are calibrated in-flight using satellite shaking and star sensor data. To use these gravity gradients for application in...
journal article 2008
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