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Merino Madrid, Cristian (author)Prediction of emissions from combustion systems is a complex problem involving the coupling between the flow field and chemistry. CFD analysis is the most commonly employed approach. However, it has the drawback that a very high computational cost prevents the use of detailed chemistry models. This master thesis, which focuses on NOx emissions,...master thesis 2017
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Vooijs, Irene (author)Dit project behandelt de programmering en toepassing van een taxiservice, waarbij de passagiers zich vanaf of naar het treinstation willen verplaatsen. Met behulp van geheeltallig lineair programmeren wordt bepaald welke ritten door de taxi's moeten worden gereden, om de winst te maximaliseren. Dit model is gebaseerd op het model wat beschreven...bachelor thesis 2017
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van der Peijl, I.V. (author)Multivariate simplex B-splines as a modelling technique provide more accurate models than standard polynomial models, which makes them an excellent modelling tool. Their coefficients, which are expressed in a barycentric coordinate system, are abstract. In this paper a physical transformation matrix is derived which can be applied to transform B...master thesis 2017
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Patki, M. (author)A conventional annealing line uses a gas fired or electrical heating to heat and gas jets to cool the steel strip. The energy supplied during heating is lost in the cooling section. This energy has a lot of potential which can be recovered and used for the heating of the cold steel strip. Tata Steel, TU Delft and Drever International are...master thesis 2017
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van Daal-Rombouts, P.M.M. (author), Benedetti, L (author), Jonge, J (author), Weijers, S (author), Langeveld, J.G. (author)Real time control (RTC) is increasingly seen as a viable method to optimise the functioning of wastewater systems. Model exercises and case studies reported in literature claim a positive impact of RTC based on results without uncertainty analysis and flawed evaluation periods. This paper describes two integrated RTC strategies at the wastewater...journal article 2017
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van Daal-Rombouts, P.M.M. (author), Gruber, Günter (author), Langeveld, J.G. (author), Muschalla, Dirk (author), Clemens, F.H.L.R. (author)Real time control (RTC) is generally viewed as a viable method for optimising the performance of urban wastewater systems. A literature review on the performance evaluation of RTC demonstrated a lack of consensus on how to do this. Two main deficiencies were identified: omitting uncertainty analysis and applying limited evaluation periods. A...journal article 2017
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Pasma, J.H. (author), van Kordelaar, J. (author), de Kam, D. (author), Weerdesteyn, V. (author), Schouten, A.C. (author), van der Kooij, H. (author)Background: Closed loop system identification (CLSIT) is a method to disentangle the contribution of underlying systems in standing balance. We investigated whether taking into account lower leg muscle activation in CLSIT could improve the reliability and accuracy of estimated parameters identifying the underlying systems. Methods: Standing...journal article 2017
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Wu, Y. (author), Nieuwenhoff, M.D. (author), Huygen, F.J.P.M. (author), van der Helm, F.C.T. (author), Niehof, S.P. (author), Schouten, A.C. (author)Small nerve fibers regulate local skin blood flow in response to local thermal perturbations. Small nerve fiber function is difficult to assess with classical neurophysiological tests. In this study, a vasomotor response model in combination with a heating protocol was developed to quantitatively characterize the control mechanism of small...journal article 2017
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Sui, Congbiao (author), Song, Enzhe (author), Stapersma, D. (author), Ding, Y. (author)Mean value diesel engine models are widely used since they focus on the main engine performance and can operate on a time scale that is longer than one revolution, and as a consequence use time steps that are much longer than crank-angle models. Mean Value First Principle (MVFP) models are not primarily intended for engine development but are...journal article 2017
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- Jeyakodi, G.T. (author) master thesis 2016
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Lenssen, R.H. (author)THE aviation industry is responsible for 12% of the total transportation impact of CO2 while awareness, for decreasing the total carbon footprint, is rising. Both the aerospace and the automotive industry are facing an increasing pressure from society to make the transportation sector more sustainable. Within the automotive industry slowly an...master thesis 2016
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Apostolou, G. (author)This thesis explores the field of product-integrated photovoltaics (PIPV), a term which is used for all types of products that contain solar cells in one or more of their surfaces, aiming at providing power during the product’s use. Product-integrated photovoltaics (PIPV) began to be widely introduced around 2000, although the use of PV systems...doctoral thesis 2016
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Zlatanova, S. (author), Sithole, George (author)Over the last decade, harnessing the commercial potential of smart mobile devices in indoor environments has spurred interest in indoor mapping and navigation. Users experience indoor environments differently. For this reason navigational models have to be designed to adapt to a user’s personality, and to reflect as many cognitive maps as...journal article 2016
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Van Wijngaarden-van Rossum, W.K. (author)Biogrout is a method to reinforce sand and gravel by the production of calcium carbonate. This calcium carbonate is produced using micro-organisms that are either present in the subsoil or injected into it. The micro-organisms are supplied with urea and calcium. Subsequently, they catalyse the hydrolysis of urea, by which carbonate is formed. In...doctoral thesis 2016
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Kapetas, L. (author), Vincent-Bonnieu, S.Y.F. (author), Danelis, S (author), Rossen, W.R. (author), Farajzadeh, R. (author), Eftekhari, A.A. (author), Mohd Shafian, SR (author), Kamarul Bahrim, RZ (author)Foam can increase sweep efficiency within a porous medium, which is useful for oil-recovery processes[1]. The flow of foam in porous media is a complex process that depends on properties like permeability, porosity and surface chemistry, but also temperature. Although the surface activity of surfactants as a function of temperature is well...journal article 2016
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Hekstra, M.A. (author)Mixing systems are used in deep lakes to prevent blue algae from rapidly growing. Air bubbles rise from the bed, dragging water from below upwards. The resulting vertical circulation suppresses blue algae growth. However, these systems demand electricity of about 25,000 per km2 per year. The airlift promises to mix the water more efficiently,...master thesis 2015
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Ogink, M.H.L. (author)Carbon dioxide (CO2) is one of the main greenhouse gases that contributes to the current climate change. Its increasing share in the Earth atmosphere leads to an increase in global temperature. To prevent the sea level from rising and increased severity of extreme weather, many governments are now trying to reduce their carbon footprint. One...master thesis 2015
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Zulkifli, Nur Amalina (author), Abdul Rahman, Alias (author), van Oosterom, Peter (author)This paper discusses 3D objects registration and modelling for cadastral objects within the Land Administration Domain Model (LADM) framework. A conceptual model as well as the associated technical model for the 2D and 3D objects have been proposed and developed for Malaysia. For both private and public land, the main subdivision of land in...conference paper 2014
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De Vet, P.L.M. (author)Currently, morphodynamic models as XBeach show substantial overestimations of the erosion rates during breaching and overwash events at barrier islands. The presently used limitations on the Shields parameter and the sediment concentration do hinder erosion, but have undesirable side effects, e.g. the breaching process is suppressed. By...master thesis 2014
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Latham, John Paul (author), Xiang, Jiansheng (author), Anastasaki, Eleni (author), Guo, Liwei (author), Karantzoulis, Nikolaos (author), Viré, A.C. (author), Pain, Christopher (author)Numerical modelling has the potential to probe the complexity of the interacting physics of rubble mound armour systems. Through forward modelling of armour unit packs, stochastic variables such as unit displacement and maximum contact force per unit during an external oscillatory disturbance can be predicted. The combined finite-discrete...conference paper 2014