Searched for: subject:"Modelling"
(1 - 20 of 1,342)

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Vita, Gibran (author), Lundström, Johan R. (author), Hertwich, Edgar G. (author), Quist, J.N. (author), Ivanova, Diana (author), Stadler, Konstantin (author), Wood, Richard (author)
The sustainability transformation calls for policies that consider the global consequences of local lifestyles. We used stakeholders' visions of sustainable lifestyles across Europe to build 19 scenarios of sufficiency (net reductions) and 17 of green consumption (shift in consumption patterns). We applied Environmentally Extended Multi...
journal article 2019
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Finotello, Giulia (author), Padding, J.T. (author), Buist, Kay A. (author), Schijve, Annelien (author), Jongsma, Alfred (author), Innings, Fredrik (author), Kuipers, J.A.M. (author)
Large scale simulation models can aid in improving the design of spray dryers. In this work an Eulerian-Lagrangian model with coupled gas phase and droplet heat and mass transfer balances is used to study airflow dynamics, temperature and humidity profiles at different positions in the spray. The turbulent gas flow is solved using large eddy...
journal article 2019
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Yu, W. (author), de Tavernier, D.A.M. (author), Ferreira, Carlos (author), van Kuik, G.A.M. (author), Schepers, J.G. (author)
Two new engineering models are presented for the aerodynamic induction of a wind turbine under dynamic thrust. The models are developed using the differential form of Duhamel integrals of indicial responses of actuator disc type vortex models. The time constants of the indicial functions are obtained by the indicial responses of a linear and...
journal article 2019
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Sun, J. (author), Blom, H.A.P. (author), Ellerbroek, J. (author), Hoekstra, J.M. (author)
This article investigates the estimation of aircraft mass and thrust settings of departing aircraft using a recursive Bayesian method called particle filtering. The method is based on a nonlinear state-space system derived from aircraft point-mass performance models. Using only aircraft surveillance data, flight states such as position,...
journal article 2019
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Okur, Ö. (author), Voulis, N. (author), Heijnen, P.W. (author), Lukszo, Z. (author)
The high level of uncertainty of renewable energy sources generation creates differences between electricity supply and demand, endangering the reliable operation of the power system. Demand response has gained significant attention as a means to cope with uncertainty of renewable energy sources. Demand response of residential and service...
journal article 2019
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Gao, Nannan (author), Li, Fen (author), Zeng, Hui (author), van Bilsen, Daniël (author), De Jong, Martin (author)
Aging, shrinking cities, urban agglomerations and other new key terms continue to emerge when describing the large-scale population changes in various cities in mainland China. It is important to simulate the distribution of residential populations at a coarse scale to manage cities as a whole, and at a fine scale for policy making in...
journal article 2019
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Kraan, Oscar (author), Kramer, Gert Jan (author), Nikolic, I. (author), Chappin, E.J.L. (author), Koning, Vinzenz (author)
Full decarbonisation of the electricity system is one of the key elements to limit global warming. As this transition takes place, the electricity system must maintain system adequacy and remain affordable to consumers. In liberalised electricity markets investors are seen as key actors driving this transition. Due to the intermittent...
journal article 2019
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van Duin, Ron (author), Wiegmans, B. (author), Tavasszy, Lorant (author), Hendriks, Birgit (author), He, Yunzhu (author)
Five years ago the project Cargo Hitching started with the goal to use the unused capacity of public transport passenger vehicles for freight and parcel transport. Like many new city logistics initiatives it is a difficult challenge to setup a profitable private business model. A rural pilot project was developed in the East of the Netherlands,...
journal article 2019
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Cheng, D. (author), Cirillo, P. (author)
We propose an alternative approach to the modeling of the positive dependence between the probability of default and the loss given default in a portfolio of exposures, using a bivariate urn process. The model combines the power of Bayesian nonparametrics and statistical learning, allowing for the elicitation and the exploitation of experts’...
journal article 2019
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Janssen, S.A.M. (author), Sharpanskykh, Alexei (author), Curran, R. (author)
Security risk management is essential for ensuring effective airport operations. This article introduces AbSRiM, a novel agent-based modeling and simulation approach to perform security risk management for airport operations that uses formal sociotechnical models that include temporal and spatial aspects. The approach contains four main steps:...
journal article 2019
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Moncada Escudero, J.A. (author), Verstegen, Judith A. (author), Posada Duque, J.A. (author), Junginger, Martin (author), Lukszo, Z. (author), Faaij, A.P.C. (author), Weijnen, M.P.C. (author)
The aviation industry accounts for more than 2% of global CO <sub>2</sub> emissions. Biojet fuel is expected to make an essential contribution to the decarbonization of the aviation sector. Brazil is seen as a key player in developing sustainable aviation biofuels owing to its long-standing experience with biofuels. Nevertheless, a clear...
journal article 2019
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Moreira Arouche, M. (author), Wang, W. (author), Teixeira De Freitas, S. (author), de Barros, Silvio (author)
The dissemination of composite materials introduces applications of hybrid structures with composite and metal parts. The development of reliable methodologies to evaluate the performance of these structures is required. In this work, the mixed-mode fracture behaviour of a bi-material adhesively bonded joint is investigated. A new strain...
journal article 2019
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Tang, T. (author), Chorus, C.G. (author)
Opinion dynamics models are based on the implicit assumption that people can observe the opinions of others directly, and update their own opinions based on the observation. This assumption significantly reduces the complexity of the process of learning opinions, but seems to be rather unrealistic. Instead, we argue that the opinion itself is...
journal article 2019
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de Jong, M. (author), Munnik, M.E. (author), Will, N.U. (author)
Opportunities are presented for academic libraries to enrich their products and services through facilitating open education in higher education, in an overview of good practices. A case study of open textbook publishing was performed at TU Delft to study how these products and services could stimulate educators to adopt open education. A...
journal article 2019
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di Biase, M. (author), Bruntink, Magiel (author), van Deursen, A. (author), Bacchelli, A. (author)
Background: Code review is a cognitively demanding and time-consuming process. Previous qualitative studies hinted at how decomposing change sets into multiple yet internally coherent ones would improve the reviewing process. So far, literature provided no quantitative analysis of this hypothesis.<br/>Aims: (1) Quantitatively measure the effects...
journal article 2019
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Eslami Baladeh, Aliakbar (author), Cheraghi, Morteza (author), Khakzad Rostami, N. (author)
Optimal selection of safety measures (SMs) is a challenging task for safety managers due to its importance, complexity, and incapability of traditional approaches in considering all the aspects of SMs optimal selection. Sophisticated mathematical models can be used to overcome the limitations of traditional approaches. However, setting the...
journal article 2019
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Jaxa-Rozen, M. (author), Kwakkel, J.H. (author), Bloemendal, J.M. (author)
The modelling of social-ecological systems can provide useful insights into the interaction of social and environmental processes. However, quantitative social-ecological models should acknowledge the complexity and uncertainty of both underlying subsystems. For example, the agent-based models which are increasingly popular for groundwater...
journal article 2019
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Wang, Anqi (author), Solomatine, D.P. (author)
Currently, practically no modeling study is expected to be carried out without some form of Sensitivity Analysis (SA). At the same time, there is a large number of various methods and it is not always easy for practitioners to choose one. The aim of this paper is to briefly review main classes of SA methods, and to present the results of the...
journal article 2019
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Athanasopoulou, A. (author), de Reuver, G.A. (author), Nikou, Shahrokh (author), Bouwman, W.A.G.A. (author)
The automotive industry is experiencing a phase of rapid innovation, with emergent technologies underpinning the realisation of self-driving cars, increased use of data and data analytics, sensors to enable car components to connect to the Internet-of-Things and the use of alternative energy sources, such as electric vehicles. Such...
journal article 2019
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Sánchez-Arriaga, Gonzalo (author), Pastor-Rodríguez, Alejandro (author), Sanjurjo-Rivo, Manuel (author), Schmehl, R. (author)
A parallelized flight simulator for the dynamic analysis of airborne wind energy (AWE) systems for ground- and fly-generation configurations is presented. The mechanical system comprises a kite or fixed-wing drone equipped with rotors and linked to the ground by a flexible tether. The time-dependent control vector of the simulator mimics real...
journal article 2019
Searched for: subject:"Modelling"
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