Publicaties

The business process literature has proposed a multitude of business process modelling approaches or paradigms, each in response to a different business process type with a unique set of requirements. Two polar paradigms, i.e. the imperative and the declarative paradigm, appear to define the extreme positions on the paradigm spectrum. While imperative approaches focus on explicitly defining how an organisational goal should be reached, the ...

This paper presents a Modelica library for electrical grid systems for low-voltage distribution grids and in-building grids. The library is based on previous work, in which a library was presented to simulate fully balanced three-phase low-voltage distribution grids. This library is extended to simulate three-phase unbalanced low-voltage distribution grids as part of the IDEAS library. The library also allows to simulate in-building AC and DC ...

Gong et al present examples of agent- and equation-based models for investigating questions related to evolution of language. They demonstrate how to connect their models with real data: by comparing the agent-based model with real social networks and by comparing the equation-based model with real historic language data. Among other suggestions to improve computer models for language evolution, they discuss the importance of using real data to ...

In this paper an object-oriented model for an electrical grid based on the IEEE 34 node test feeder and the integration of this grid with photovoltaic systems on residential level, i.e. 230 V, is presented. The goal is to demonstrate the flexibility of using Modelica to simulate a grid model and to show how this model can be used to simulate the influence of a household power demand and photovoltaic generation on this electrical grid. The idea ...

In whole building simulations, interest in combined heat and air flow simulations is growing as this allows the investigation of indoor air quality (IAQ), HVAC energy use, and their interaction. To accomplish this, the user usually has to rely on co-simulation, which requires the user to be skilled in at least two software applications and in setting up the co-simulation environment. Additionally, often a large amount of input variables and ...

Integrated Membrane Bioreactor (MBR) models, combination of biological and physical models, have been representing powerful tools for the accomplishment of high environmental sustainability. This paper, produced by the International Water Association (IWA) Task Group on Membrane Modelling and Control, reviews the state-of-the-art, identifying gaps for future researches, and proposes a new integrated MBR modelling framework. In particular, the ...

The destructive nature of archaeological excavations and the spatial character of archaeological finds make 3D models valuable contributions to the documentation of archaeological information. Laser scanning allows highly accurate 3D reconstructions, but involves considerable costs and expert knowledge. Therefore, photo modelling could be considered as a useful alternative. In this paper, we will demonstrate on the one hand the costefficiency ...