Collection: research
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Pozzi, P. (author), Soloviev, O.A. (author), Wilding, D. (author), Vdovine, Gleb (author), Verhaegen, M.H.G. (author)
We report on a universal sample-independent sensorless adaptive optics method, based on modal optimization of the second moment of the fluorescence emission from a point-like excitation. Our method employs a sample-independent precalibration, performed only once for the particular system, to establish the direct relation between the image...
journal article 2018
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Solcerova, A. (author), van Emmerik, T.H.M. (author), van de Ven, F.H.M. (author), Selker, J.S. (author), van de Giesen, N.C. (author)
A phenomenon known as the skin effect-a layer of surface water that is colder than the water beneath it-was previously described in oceanography and verified in lab measurements. Only a few measurements have been done on the skin effect in field conditions, and therefore this phenomenon is relatively unknown. This paper presents measurements...
journal article 2018
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Savov, A.M. (author), Joshi, S. (author), Shafqat, Salman (author), Hoefnagels, Johan P.M. (author), Louwerse, M.C. (author), Stoute, R. (author), Dekker, R. (author)
A device for studying the mechanical and electrical behavior of free-standing micro-fabricated metal structures, subjected to a very large deformation, is presented in this paper. The free-standing structures are intended to serve as interconnects in high-density, highly stretchable electronic circuits. For an easy, damage-free handling and...
journal article 2018
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Konijnenberg, A.P. (author), Lu, Xingyuan (author), Liu, Leixin (author), Coene, W.M.J.M. (author), Zhao, C.L. (author), Urbach, Paul (author)
A novel non-iterative phase retrieval method is proposed and demonstrated with a
proof-of-principle experiment. The method uses a fixed specially designed mask and through-focus intensity measurements. It is demonstrated that this method is robust to spatial partial coherence in the illumination, making it suitable for coherent diffractive...
journal article 2018
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Scheepens, A.E. (author), Vogtländer, J.G. (author)
Calculating the environmental benefits of energy saving systems in dwellings in a life cycle assessment (LCA) has two major issues, namely: how to deal with the customer behaviour and how to deal with rebound effects. Both issues are important for sustainable strategies. From a user-centred design perspective, two fundamentally different...
journal article 2018
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Herrero Huerta, M. (author), Lindenbergh, R.C. (author), Gard, W.F. (author)
Plant leaf movement is induced by some combination of different external and internal stimuli. Detailed geometric characterization of such movement is expected to improve understanding of these mechanisms. A metric high-quality, non-invasive and innovative sensor system to analyze plant movement is Terrestrial LiDAR (TLiDAR). This technique has...
journal article 2018
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van Driel, B.A. (author), van den Berg, K. J. (author), Smout, M. (author), Dekker, N (author), Kooyman, P.J. (author), Dik, J. (author)
This study reports on the effect of artists’ paint formulation on degradation rates of TiO2-based oil paints. Titanium white oil paint exists in a multitude of different recipes, and the effect of the formulation on photocatalytic binder
degradation kinetics is unknown. These formulations contain, among others, one or both titanium dioxide...
journal article 2018
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Yazdan Mehr, M. (author), van Driel, W.D. (author), De Buyl, Francois (author), Zhang, G.Q. (author)
Degradation mechanisms of silicone plates under harsh environment conditions are studied in this investigation. Environmental degradation of silicone free form, used as secondary optics in Light Emitting Diode LED lighting lamps and luminaires or any other applications requiring high quality optics being used, has negative implications for the...
journal article 2018
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Maljaars, P.J. (author), Kaminski, M.L. (author), den Besten, J.H. (author)
Boundary element methods (BEM) have been used for propeller hydrodynamic calculations since the 1990s. More recently, these methods are being used in combination with finite element methods (FEM) in order to calculate flexible propeller fluid–structure interaction (FSI) response. The main advantage of using BEM for flexible propeller FSI...
journal article 2018
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Filatova, O.G. (author), van Vliet, L.J. (author), Schouten, A.C. (author), Kwakkel, Gert (author), van der Helm, F.C.T. (author), Vos, F.M. (author), More Authors (author)
Better insight into white matter (WM) alterations after stroke onset could help to understand the underlying recovery mechanisms and improve future interventions. MR diffusion imaging enables to assess such changes. Our goal was to investigate the relation of WM diffusion characteristics derived from diffusion models of increasing complexity...
journal article 2018
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Noori, F. (author), De Jong, W.M. (author)
City branding is not only increasingly practiced in cities in established economies, but also among municipal governments in countries, until quite recently, rather closed off from the outside world. One country with a strong drive to engage in urban (re)development in the post-oil era through enhancing its ‘ecological modernization’ is Iran....
journal article 2018
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Liu, S. (author), Ye, Q. (author), Wu, Shiqiang (author), Stive, M.J.F. (author)
Wind induced hydrodynamic circulations play significant roles in the transport and mixing process of pollutants and nutrients in large shallow lakes, but they have been usually overlooked, while environmental, biological, and ecological aspects of eutrophication problems get the most focus. Herein we use a three-dimensional model, driven by...
journal article 2018
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Zlatanović, L. (author), Knezev, A (author), van der Hoek, J.P. (author), Vreeburg, Jan (author)
Drinking water and fire safety are strongly bonded to each other. Actual drinking water demand and fire flows are both delivered through the same network, and are both devoted to public health and safety. In The Netherlands, the discussion about fire flows supplied by the drinking water networks has drawn fire fighters and drinking water...
journal article 2018
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Šavija, B. (author)
Cracks in concrete structures present a threat to their durability. Therefore, numerous research studies have been devoted to reducing concrete cracking. In recent years, a new approach has been proposed for controlling temperature related cracking—utilization of phase change materials (PCMs) in concrete. Through their ability to capture heat,...
journal article 2018
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Jonkman, Sebastiaan N. (author), Godfroij, Maartje (author), Sebastian, Antonia (author), Kolen, B. (author)
An analysis was made of the loss of life caused by Hurricane Harvey. Information was collected for 70 fatalities that occurred due to the event and were recovered within the first 2 weeks after landfall. Most fatalities occurred due to drowning (81 %), particularly in and around vehicles. Males (70 %) and people over 50 years old (56 %) were...
journal article 2018
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Chen, Jianyu (author), Al-Ars, Z. (author), Hofstee, H.P. (author)
In this paper, we present the design in reconfigurable logic of a matrix multiplier for matrices of 32-bit posit numbers with es=2 [1]. Vector dot products are computed without intermediate rounding as suggested by the proposed posit standard to maximally retain precision. An initial implementation targets the CAPI 1.0 interface on the POWER8...
conference paper 2018
document
Qian, C. (author), Mirzagheytaghi, Amir (author), Fan, J. (author), Tang, H. (author), Sun, B. (author), Ye, H. (author), Zhang, G.Q. (author)
As an increasing attention towards sustainable development of energy and environment, the power electronics (PEs) are gaining more and more attraction on various energy systems. The insulated gate bipolar transistor (IGBT), as one of the PEs with numerous advantages and potentials for development of higher voltage and current ratings, has been...
journal article 2018
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Groß, C. (author), de Ridder, D. (author), Reinders, M.J.T. (author)
Background: Predicting the deleteriousness of observed genomic variants has taken a step forward with the introduction of the Combined Annotation Dependent Depletion (CADD) approach, which trains a classifier on the wealth of available human genomic information. This raises the question whether it can be done with less data for non-human...
journal article 2018
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Mirzaali Mazandarani, M. (author), Edens, M. E. (author), de la Nava, A. Herranz (author), Janbaz, S. (author), Vena, P (author), Doubrovski, E.L. (author), Zadpoor, A.A. (author)
Biomimetic composites are usually made by combining hard and soft phases using, for example, multi-material additive manufacturing (AM). Like other fabrication methods, AM techniques are limited by the resolution of the device, hence, setting a minimum length scale. The effects of this length scale on the performance of hard-soft composites...
journal article 2018
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Hou, Z. (author), Nikolic, Milena (author), Benitez, Pablo (author), Bociort, F. (author)
Traditional imaging design methods can often be ineffective when designing aspheric systems because of the large number of optimization parameters and lack of a good starting point. They are often trapped in a poor local minimum and it can be highly time-consuming to find a good solution in a bumpy design landscape. The simultaneous multiple...
journal article 2018
Collection: research
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