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Zhang, C. (author), Qin, C. (author)
This research is conducted to explore the growing trend of private vehicles in Beijing, China, in the coming 25 years using the system dynamics (SD) method. The vensim software is used to build the SD model and do simulations. First, the paper introduces the background of the private vehicles in Beijing and analyzes the issues of traffic...
conference paper 2014
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Kuipers, J. (author)
A study was performed by the author on formal analysis of uncertain non-linear systems in the context of System Dynamics (SD). The objective of this study was to develop a more insightful method to classify model behaviour for exploratory modelling. The long term vision of this study is more efficient, more exhaustive and more insightful model...
conference paper 2014
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Maher, G.D. (author), Hulshoff, S.J. (author)
The Variational Germano Identity [1, 2] is used to optimize the coefficients of residual-based subgrid-scale models that arise from the application of a Variational Multiscale Method [3, 4]. It is demonstrated that numerical iterative methods can be used to solve the Germano relations to obtain values for the parameters of subgrid-scale models...
conference paper 2014
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Kwakkel, J.H. (author), Auping, W.L. (author), Pruyt, E. (author)
In many public policy issues diverging understandings of the system can be encountered. These diverging understandings can reside in the mental models of the different actors involved, or even be codified into structurally different models of the system. For an analyst it can be of great use to get insight into how and under what conditions the...
conference paper 2014
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Cheng, L. (author), Mattei, S. (author), Fick, P.W. (author), Hulshoff, S.J. (author)
A semi-continuous formulation is introduced for finding bases which minimise the error in a specific output functional of a reduced-order model. The formulation is advantageous in that it can be easily applied to nonlinear problems and functionals. A general description of the approach is given, then explicit formulations are derived for the...
conference paper 2014
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Jiao, F. (author), Mohles, V. (author), Miroux, A.G. (author), Bollmann, C. (author)
Microstructure and microchemistry evolution during hot deformation and subsequent annealing of a commercial Al-Mg-Si alloy were experimentally investigated using electron backscatter diffraction (EBSD) and SEM. Meanwhile, a through-process model framework consisting of the deformation model GIA-3IVM+ and the recrystallization (RX) model CORe was...
conference paper 2014
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Moorlag, R. (author), Auping, W.L. (author), Pruyt, E. (author)
Now that conventional gas resources are rapidly declining in many industrialised regions, national governments are considering the exploration and production of unconventional resources, with shale gas in particular. Large-scale development of these resources could significantly lower import dependency of the gas supply of many countries. The...
conference paper 2014
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Auping, W.L. (author)
The copper case is often used as an example in resource depletion studies. Despite these studies, several profound uncertainties remain in the system. One of these uncertainties is the distribution of copper grades in the lithosphere. The Skinner thesis promotes the idea that copper grades may be distributed with a bimodal distribution instead...
conference paper 2014
document
Kwakkel, J.H. (author), Auping, W.L. (author), Pruyt, E. (author)
conference paper 2014
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Yang, Q. (author), Zhenpeng, Z. (author)
The increasing energy demand in China due to urbanization has made the study of different energy policies in big cities a crucial topic of discussion. This is a complex problem since the electricity market is a multi-actor system where various actors may have a great influence on the main issue we are focusing on. In order to reduce the energy...
conference paper 2014
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Muhaimin, T.A. (author), Nikolaos, M. (author)
In context of rising demand for energy amidst limited resources, energy efficiency is one of the major concerns of a modernized world. Gas consumption in the built environment constitutes for more than 30% of the overall energy consumption in the world. Hence, energy transitions and their preferences in the built environment demand urgent...
conference paper 2014
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Viré, A. (author), Spinneken, J. (author), Piggott, M.D. (author), Pain, C.C. (author), Kramer, S.C. (author)
The aim of this study is to validate a fully non-linear finite-element model to simulate waves and wave-structure interactions. The Navier–Stokes equations are solved on an extended domain, which covers both fluid and structure. The latter is represented by a non-zero solid-concentration field, which is computed by conservatively mapping a mesh...
conference paper 2014
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Fasihi Harandi, M. (author), De Vries, M.J. (author)
Hydraulic heritage systems, both underground and exposed, have been known to be sustainable for millennia. Persian and also Roman aqueducts are examples of such hydrosystems. Their value is often overlooked but they have undeniable advantages: they have functional interconnectedness with their surrounding society and ecology, which sometimes...
journal article 2014
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De Lange, M.F. (author), Ottevanger, C.P. (author), Wiegman, M. (author), Vlugt, T.J.H. (author), Gascon, J. (author), Kapteijn, F. (author)
Several Al-based MOFs of the CAU family have been investigated for application in the adsorption driven allocation of heat and cold. The special water adsorption behaviour of CAU-10-H makes it ideal for application in adsorption driven heat pumps and chillers. For increased performance, CAU-10-H crystals have been grown directly on both ?...
journal article 2014
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Böhler, R. (author), Quaini, A. (author), Capriotti, L. (author), Cakir, P. (author), Benes, O. (author), Boboridis, K. (author), Guiot, A. (author), Luzzi, L. (author), Konings, R.J.M. (author), Manara, D. (author)
The high-temperature phase diagram of the UO2–ThO2 system has been experimentally revisited in the present study for the first time since 1970, using a laser heating approach combined with fast pyrometry in a thermal arrest method. The melting/solidification temperature, which is of fundamental information for a reactor design was studied here....
journal article 2014
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Chappin, E.J.L. (author), Van der Lei, T. (author)
Climate change is likely to affect how society will function in this century. Because climate change effects may be severe, a next step is to study not only the effects on natural systems, but also the effects on built infrastructure systems and, in response to anticipated effects, the adaptation of those systems. Studies that discuss...
journal article 2014
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Boonstra, T.A. (author), Van Vugt, J.P.P. (author), Van der Kooij, H. (author), Bloem, B.R. (author)
Balance control (the ability to maintain an upright posture) is asymmetrically controlled in a proportion of patients with Parkinson’s disease. Gait asymmetries have been linked to the pathophysiology of freezing of gait. We speculate that asymmetries in balance could contribute to freezing by a) hampering the unloading of the stepping leg and...
journal article 2014
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Santoni de Sio, F. (author), Faulmüller, N. (author), A Vincent, N. (author)
This theoretical paper draws the scientific community’s attention to how pharmacological cognitive enhancement may impact on society and law. Namely, if safe, reliable, and effective techniques to enhance mental performance are eventually developed, then this may under some circumstances impose new duties onto people in high-responsibility...
journal article 2014
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Nadarajah, N. (author), Paffenholz, J.A. (author), Teunissen, P.J.G. (author)
Direct geo-referencing is an efficient methodology for the fast acquisition of 3D spatial data. It requires the fusion of spatial data acquisition sensors with navigation sensors, such as Global Navigation Satellite System (GNSS) receivers. In this contribution, we consider an integrated GNSS navigation system to provide estimates of the...
journal article 2014
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Poelma, R.H. (author), Morana, B. (author), Vollebregt, S. (author), Schlangen, H.E.J.G. (author), Van Zeijl, H.W. (author), Fan, X. (author), Zhang, G.Q. (author)
The porous nature of carbon nanotube (CNT) arrays allows for the unique opportunity to tailor their mechanical response by the infiltration and deposition of nanoscale conformal coatings. Here, we fabricate novel photo-lithographically defined CNT pillars that are conformally coated with amorphous silicon carbide (a-SiC) to strengthen the...
journal article 2014
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