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Ras, Wilbert (author)Today, one of the major goals of modern astronomy is the search for other habitable worlds and the presence of life on them. Crucial in this search is the atmospheric characterisation of small, rocky planets orbiting in the habitable zone around solar type stars. The LIFE initiative will be able to perform atmospheric characterisation of a...master thesis 2022
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Shirmohammadi, F. (author), Draganov, D.S. (author), Ras, Paul (author), Wapenaar, C.P.A. (author)Seismic interferometry (SI) is a method that retrieves new seismic traces from the cross-correlation of existing traces, where one of the receivers acts as a virtual seismic source whose response is retrieved at other receivers. When using sources only at the surface, and so-called one-sided illumination of the receivers occurs, not only desired...abstract 2022
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Ras, Martijn (author)Novelty search is a state-of-the-art approach focusing on behavioural novelty, rewarding diverging, as opposed to pursuing static objectives. This is relevant for exploratory modelling and analysis, which focuses on exploration of model through open exploration or directed search. Novelty search as an open exploration strategy is being tested...master thesis 2021
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Brodic, Bojan (author), Ras, Paul (author), Kunder, Richard de (author), Drijkoningen, G.G. (author), Malehmir, Alireza (author)Seismic imaging characteristics of a prototype electrically driven, linear synchronous motor-based, vertical-force seismic vibrator ("e-vib") were evaluated at a site in the Netherlands. The system weighs 1.65 t and excites seismic signals with a peak force of 6.7 kN. Data were recorded along two collocated geophone-based nodal and...review 2021
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Ras, Meindert (author)The Atalanta is a palm-sized, insect-inspired, flapping-wing micro air vehicle developed by the University of Technology Delft. In its current form, the Atalanta has a lift-to-mass ratio of 0.12 which inhibits it from taking off. Getting the Atalanta to fly would greatly benefit the research into areas such as aerodynamic modelling, on-board...master thesis 2020
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Yu, Cunming (author), Sasic, Srdjan (author), Liu, Kai (author), Salameh, S. (author), Ras, Robin H.A. (author), van Ommen, J.R. (author)Nature-inspired self-cleaning surfaces have attracted considerable attention from both fundamental research and practical applications. This review adopts a chemical-engineering point of view and focuses on mechanisms, modelling, and manufacturing (M3) of nature-inspired self-cleaning surfaces. We will introduce six nature-inspired self...journal article 2020
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Ras, Wilbert (author)The Wien filter is an important part in the multi-beam inspection microscope that is being developed at the Imaging Physics research group at the TU Delft. The multi-beam inspection microscope uses an array of 20x20 parallel beams with a pitch of 1mmthat scan the sample simultaneously. This way the low throughput of current scanning electron...bachelor thesis 2018
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Ezerskaia, A. (author), Ras, A. (author), Pereira, S.F. (author), Urbach, Paul (author), Varghese, B. (author)We report a low-cost optical method with high sensitivity for the quantitative assessment of the gloss of human skin in the low gloss regime relevant for physiological skin gloss conditions. Using Monte Carlo simulations, experiments on gloss calibration standards and in-vivo skin gloss experiments using an optical prototype, we demonstrate...conference paper 2018
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Moonen, Roel (author), Ras, Erik Jan (author), Harvey, Clare (author), Alles, Jeroen (author), Moulijn, J.A. (author)Small-scale parallel trickle-bed reactors were used to evaluate the performance of a commercial hydrodesulfurization catalyst under industrially relevant conditions. Catalyst extrudates were loaded as a single string in reactor tubes. It is demonstrated that product sulfur levels and densities obtained with the single-pellet-string reactor...journal article 2017
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da Fonte Lameiras, F. (author), Ras, C. (author), ten Pierick, A. (author), Heijnen, J.J. (author), van Gulik, W.M. (author)In its natural environment, the filamentous fungus Aspergillus niger grows on decaying fruits and plant material, thereby enzymatically degrading the lignocellulosic constituents (lignin, cellulose, hemicellulose, and pectin) into a mixture of mono- and oligosaccharides. To investigate the kinetics and stoichiometry of growth of this fungus...journal article 2017
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Suarez Mendez, C.A. (author), Ras, C. (author), Wahl, S.A. (author)Background: Natural and industrial environments are dynamic with respect to substrate availability and other conditions like temperature and pH. Especially, metabolism is strongly affected by changes in the extracellular space. Here we study the dynamic flux of central carbon metabolism and storage carbohydrate metabolism under dynamic feast...journal article 2017
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Ezerskaia, A. (author), Ras, Arno (author), Bloemen, Pascal (author), Pereira, S.F. (author), Urbach, Paul (author), Varghese, Babu (author)We demonstrate a low-cost optical method for measuring the gloss properties with improved sensitivity in the low gloss regime, relevant for skin gloss properties. The gloss estimation method is based on, on the one hand, the slope of the intensity gradient in the transition regime between specular and diffuse reflection and on the other on...journal article 2017
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Ahvenniemi, Esko (author), Akbashev, Andrew R. (author), Ali, Saima (author), Bechelany, Mikhael (author), Berdova, Maria (author), Boyadjiev, Stefan (author), Cameron, David C. (author), Chen, R. (author), Chubarov, Mikhail (author), Cremers, Veronique (author), Devi, Anjana (author), Drozd, Viktor (author), Elnikova, Liliya (author), Gottardi, Gloria (author), Grigoras, Kestutis (author), Hausmann, Dennis M. (author), Hwang, Cheol Seong (author), Jen, Shih Hui (author), Kallio, Tanja (author), Kanervo, Jaana (author), Khmelnitskiy, Ivan (author), Kim, Do Han (author), Klibanov, Lev (author), Koshtyal, Yury (author), Krause, A. Outi I (author), Kuhs, Jakob (author), Kärkkänen, Irina (author), Kääriäinen, Marja Leena (author), Kääriäinen, Tommi (author), Lamagna, Luca (author), Łapicki, Adam A. (author), Leskelä, Markku (author), Lipsanen, Harri (author), Lyytinen, Jussi (author), Malkov, Anatoly (author), Malygin, Anatoly (author), Mennad, Abdelkader (author), Militzer, Christian (author), Molarius, Jyrki (author), Norek, Małgorzata (author), Özgit-Akgün, Çaǧla (author), Panov, Mikhail (author), Pedersen, Henrik (author), Piallat, Fabien (author), Popov, Georgi (author), Puurunen, Riikka L. (author), Rampelberg, Geert (author), Ras, Robin H A (author), Rauwel, Erwan (author), Roozeboom, Fred (author), Sajavaara, Timo (author), Salami, Hossein (author), Savin, Hele (author), Schneider, Nathanaelle (author), Seidel, Thomas E. (author), Sundqvist, Jonas (author), Suyatin, Dmitry B. (author), Törndahl, Tobias (author), van Ommen, J.R. (author), Wiemer, Claudia (author), Ylivaara, Oili M E (author), Yurkevich, Oksana (author)Atomic layer deposition (ALD), a gas-phase thin film deposition technique based on repeated, self-terminating gas-solid reactions, has become the method of choice in semiconductor manufacturing and many other technological areas for depositing thin conformal inorganic material layers for various applications. ALD has been discovered and...review 2017
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- Ras, M (author), Haffner, M.E.A. (author) book chapter 2016
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- Haffner, M.E.A. (author), Ras, M. (author) book chapter 2015
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- Haffner, M.E.A. (author), Ras, M. (author) book chapter 2015
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- Haffner, M.E.A. (author), Ras, M. (author) book chapter 2015
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Ras, T.T. (author)A research on finding a method to integrate the wind engineering process to the design process. Wind engineering is seen to be a rigid and slow process of CFD modeling and wind tunnel testing. New frames of work and data analysis make it possible to integrate this process in the, much faster, design process. Proof of this integration is given in...master thesis 2014
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Viswanathan, B. (author), Reinders, A.H.M.E. (author), De Boer, D.K.G. (author), Ras, A. (author), Zahn, H. (author), Desmet, L. (author)Solar photovoltaic outdoor lighting applications usually comprise flat plate PV modules mounted on top of a light pole. In our paper instead, it is thought of to design the light pole as a luminescent solar concentrator photovoltaic (LSC-PV) module with solar cell strips and hence reduce costs of silicon solar cells because concentration effects...conference paper 2012
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Canelas, A.B. (author), Ras, C. (author), Ten Pierick, A. (author), Van Dam, J.C. (author), Heijnen, J.J. (author), Van Gulik, W.M. (author)Accurate determination of intracellular metabolite levels requires reliable, reproducible techniques for sampling and sample treatment. Quenching in 60% (v/v) methanol at ?40°C is currently the standard method for sub-second arrest of metabolic activity in microbial metabolomics but there have been contradictory reports in the literature on...journal article 2008
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