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Felz, S. (author), Vermeulen, Pascalle (author), van Loosdrecht, Mark C.M. (author), Lin, Yue Mei (author)
Biofilm structure and functionality depend on extracellular polymeric substances (EPS), but analytical methods for EPS often lack specificity which limits progress of biofilm research. EPS were extracted from aerobic granular sludge and analyzed with frequently applied colorimetric methods. The colorimetric methods were evaluated based on...
journal article 2019
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Bhaskar, P. (author), Achtstein, A.W. (author), Vermeulen, M.J.W. (author), Siebbeles, L.D.A. (author)
Trigonal tellurium is a small band gap elemental semiconductor consisting of van der Waals bound one-dimensional helical chains of tellurium atoms. We study the temperature dependence of the charge carrier mobility and recombination pathways in bulk tellurium. Electrons and holes are generated by irradiation of the sample with 3 MeV electrons...
journal article 2019
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Bhaskar, P. (author), Achtstein, Alexander W. (author), Vermeulen, M.J.W. (author), Siebbeles, L.D.A. (author)
Tin disulfide (SnS2) is a two-dimensional semiconducting van der Waals material with an indirect band gap. We measured the mobility and recombination dynamics of charge carriers as a function of temperature and charge density. Excess electrons and holes were generated by pulsed irradiation with 3 MeV electrons. The charge carriers were probed by...
journal article 2019
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Vermeulen, Bart (author), Boersema, Matthijs (author), Hoitink, Ton (author), Sieben, Arjan (author), Sloff, C.J. (author), Van Der Wal, Maarten (author)
Longitudinal training dams (LTDs) are a promising alternative for river groynes. Here we summarize findings of a recent study focused on the along river transition from a series of river groynes to an LTD, where the flow divides between the fairway and the side channel between the LTD and the river bank. A scale model is setup using...
journal article 2018
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Humphreys, P.C. (author), Kalb, N. (author), Morits, J.P.J. (author), Schouten, R.N. (author), Vermeulen, R.F.L. (author), Twitchen, Daniel J. (author), Markham, Matthew (author), Hanson, R. (author)
Large-scale quantum networks promise to enable secure communication, distributed quantum computing, enhanced sensing and fundamental tests of quantum mechanics through the distribution of entanglement across nodes <sup>1-7</sup>. Moving beyond current two-node networks <sup>8-13</sup> requires the rate of entanglement generation between nodes...
journal article 2018
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Fu, X. (author), Rol, M.A. (author), Bultink, C.C. (author), van Someren, J. (author), Khammassi, N. (author), Ashraf, I. (author), Vermeulen, R.F.L. (author), de Sterke, J.C. (author), Vlothuizen, W.J. (author), Schouten, R.N. (author), García Almudever, C. (author), di Carlo, L. (author), Bertels, K.L.M. (author)
This article proposes a quantum microarchitecture, QuMA. Flexible programmability of a quantum processor is achieved by multilevel instructions decoding, abstracting analog control into digital control, and translating instruction execution with non-deterministic timing into event trigger with precise timing. QuMA is validated by several...
journal article 2018
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Anil Kumar, J.W. (author), Vermeulen, P. (author), Kooi, Bart J. (author), Rao, Jiancun (author), van Eijck, L. (author), Schwarzmüller, Stefan (author), Oeckler, Oliver (author), Blake, Graeme R. (author)
The alloys (GeTe)<sub>x</sub>(AgSbTe<sub>2</sub>)<sub>100-x</sub>, commonly known as TAGS-x, are among the best performing p-type thermoelectric materials for the composition range 80 ≤ x ≤ 90 and in the temperature range 200-500 °C. They adopt a rhombohedrally distorted rocksalt structure at room temperature and are reported to undergo a...
journal article 2017
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Fu, X. (author), Rol, M.A. (author), Bultink, C.C. (author), van Someren, J. (author), Khammassi, N. (author), Ashraf, I. (author), Vermeulen, R.F.L. (author), de Sterke, J.C. (author), Vlothuizen, W.J. (author), Schouten, R.N. (author), García Almudever, C. (author), di Carlo, L. (author), Bertels, K.L.M. (author)
Quantum computers promise to solve certain problems that are intractable for classical computers, such as factoring large numbers and simulating quantum systems. To date, research in quantum computer engineering has focused primarily at opposite ends of the required system stack: devising high-level programming languages and compilers to...
conference paper 2017
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Hoitink, A.J.F. (author), Wang, Z.B. (author), Vermeulen, B. (author), Huismans, Y (author), Kästner, K (author)
River delta degradation has been caused by extraction of natural resources, sediment retention by reservoirs, and sea-level rise. Despite global concerns about these issues, human activity in the world’s largest deltas intensifies. Harbour development, construction of flood defences, sand mining and land reclamation emerge as key contemporary...
journal article 2017
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Rol, M.A. (author), Bultink, C.C. (author), O'Brien, T.E. (author), De Jong, S. R. (author), Theis, L. S. (author), Fu, X. (author), Lüthi, F. (author), Vermeulen, R.F.L. (author), de Sterke, J.C. (author), Bruno, A. (author), Deurloo, D. (author), Schouten, R.N. (author), Wilhelm, FK (author), DiCarlo, L. (author)
We present a tuneup protocol for qubit gates with tenfold speedup over traditional methods reliant on qubit initialization by energy relaxation. This speedup is achieved by constructing a cost function for Nelder-Mead optimization from real-time correlation of nondemolition measurements interleaving gate operations without pause. Applying the...
journal article 2017
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Vermeulen, B. (author), Pyka, A. (author), la Poutré, J.A. (author), de Kok, A.G. (author)
In recent literature, there is disagreement over the temporal pattern of vertical governance of firms over the product life-cycle. We use a novel neo-Schumpeterian agent-based simulation model to investigate emerging patterns of vertical governance for different levels of imitability and substitutability of capabilities. We find that, in the...
journal article 2016
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Bultink, C.C. (author), Rol, M.A. (author), O'Brien, T.E. (author), Fu, X. (author), Dickel, C. (author), Vermeulen, R.F.L. (author), de Sterke, J.C. (author), Bruno, A. (author), Schouten, R.N. (author), DiCarlo, L. (author)
We present two pulse schemes to actively deplete measurement photons from a readout resonator in the nonlinear dispersive regime of circuit QED. One method uses digital feedback conditioned on the measurement outcome, while the other is unconditional. In the absence of analytic forms and symmetries to exploit in this nonlinear regime, the...
journal article 2016
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Hensen, B.J. (author), Kalb, N. (author), Blok, M.S. (author), Dréau, A.E. (author), Reiserer, A.A. (author), Vermeulen, R.F.L. (author), Schouten, R.N. (author), Markham, M. (author), Twitchen, D.J. (author), Goodenough, K.D. (author), Elkouss Coronas, D. (author), Wehner, S.D.C. (author), Taminiau, T.H. (author), Hanson, R. (author)
The recently reported violation of a Bell inequality using entangled electronic spins in diamonds (Hensen et al., Nature 526, 682–686) provided the first loophole-free evidence against local-realist theories of nature. Here we report on data from a second Bell experiment using the same experimental<br/>setup with minor modifications. We find a...
journal article 2016
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Vermeulen, L.C. (author), Kraker, J. (author), Hofstra, N. (author), Kroeze, C. (author), Medema, G. (author)
Cryptosporidium is a protozoan parasite that can cause diarrhoea. Human faeces are an important source of Cryptosporidium in surface waters. We present a model to study the impact of sanitation, urbanization and population growth on human emissions of Cryptosporidium to surface waters. We build on a global model by Hofstra et al (2013 Sci. Total...
journal article 2015
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Schipper, H.R. (author), Eigenraam, P. (author), Grünewald, S. (author), Soru, M. (author), Nap, P. (author), Van Overveld, B. (author), Vermeulen, J. (author)
The production of architectural elements with complex geometry is challenging for concrete manufacturers. Computer-numerically-controlled (CNC) milled foam moulds have been applied frequently in the last decades, resulting in good aesthetical performance. However, still the costs are high and a large volume of waste is produced. This paper...
conference paper 2015
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Kiulia, Nicholas M. (author), Hofstra, Nynke (author), Vermeulen, Lucie C. (author), Obara, Maureen A. (author), Medema, G.J. (author), Rose, Joan B. (author)
Group A rotaviruses (RV) are the major cause of acute gastroenteritis in infants and young children globally. Waterborne transmission of RV and the presence of RV in water sources are of major public health importance. In this paper, we present the Global Waterborne Pathogen model for RV (GloWPa-Rota model) to estimate the global distribution...
journal article 2015
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Kolen, B. (author), Vermeulen, C.J.M. (author), Terpstra, T. (author), Kerstholt, J. (author)
In this research vertical evacuation is defined as the displacement of people to dry floors in buildings or public shelters that are located inside the threatened or flooded area. Vertical evacuation strategies can be implemented in combination with, or as an alternative to, preventive evacuate in case preventive evacuation is not entirely...
report 2015
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Cammaert, A.B. (author), Hoving, J.S. (author), Vermeulen, R. (author)
conference paper 2014
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Vermeulen, R. (author)
master thesis 2014
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Hoving, J.S. (author), Vermeulen, R. (author), Mesu, A.W. (author), Cammaert, A.B. (author)
Jack-ups have been constructed for numerous ocean environments, but to date there has been no operating experience under Arctic sea ice conditions. The current state of jack-up technology does not allow working outside the ice-free season and thus ice management will be needed to extend the drilling season. Currently, ice load calculations are...
conference paper 2013
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