Software Architecture for Location-Based Games Designed for Social Interaction in Public Space

Location-based games (LBGs) are becoming increasingly more popular, especially those that focus on social interaction in public space. They have been successful to various extents at bringing players together to interact in public space; yet there is lack of knowledge and consensus on how to design these games from a technical perspective. This...

Fostering Social Interaction in Playful Cities

This paper describes different types of activities/challenges designed for social interaction, while discussing the performance of such challenges using the mobile digital game “Secrets of the South” (http://secretsofthesouth.tbm.tudelft.nl/, Secrets of the South). The game was played as part of a scientific meeting, with participants from 25...

Overview of the olympus field development optimization challenge

Since the early 2000's there has been a significant focus from many groups around the world towards the development and application of innovative technologies in order to improve reservoir management strategies and optimize field development plans. Benchmark studies are a very valuable way of evaluating and demonstrating the status and...

Fabric analysis of internally unstable soils: (Abstract)

Improving the computational efficiency of approximate gradients using a multiscale reservoir simulation framework

In this work, the application of tensor methodologies for computer-assisted history matching of channelized reservoirs is explored. A tensor-based approach is used for the parameterization of petrophysical parameters to reduce the dimensionality of the parameter estimation problem. Building on the work of Afra and Gildin (2013); Afra et.al. ...

Ensemble-based multiobjective optimization of on/off control devices under geological uncertainty

We consider robust ensemble-based (EnOpt) multiobjective production optimization of on/off inflow-control devices (ICDs) for a sector model inspired by a real-field case. The use of on/off valves as optimization variables leads to a discrete control problem. We propose a reparameterization of such discrete controls in terms of switching times...

Quantification of the impact of ensemble size on the quality of an ensemble gradient using principles of hypothesis testing

With an increase in the number of applications of ensemble optimization (EnOpt) for production optimization, the theoretical understanding of the gradient quality has received little attention. An important factor that influences the quality of the gradient estimate is the number of samples. In this study we use principles from statistical...

Robust ensemble-based multi-objective optimization

We consider robust ensemble-based multi-objective optimization using a hierarchical switching algorithm for combined long-term and short term water flooding optimization. We apply a modified formulation of the ensemble gradient which results in improved performance compared to earlier formulations. We also apply multi-dimensional scaling to...

Framework of awareness to critical situations in design and product development: A lean thinking approach to deal with uncertainty and risk

The present research takes the Lean Thinking perspective adopting the concept of MUDA as dimension to study designers’ behavior and provides managerial support with a Framework of Awareness to critical situations in the research field of design and product development.

Ensemble based multi-objective production optimization of smart wells

In a recent study two hierarchical multi-objective methods were suggested to include short-term targets in life-cycle production optimization. However this previous study has two limitations: 1) the adjoint formulation is used to obtain gradient information, requiring simulator source code access and an extensive implementation effort, and 2)...

An integrative approach to diagram-based collaborative brainstorming

The need for computer supported collaboration has grown over the last years and made collaboration processes an important factor within organizations. This trend has resulted in the development of a variety of tools and technologies to support the various forms of collaboration. Many collaborative processes, e.g. strategy building, scenario...

Numerical modelling and assessment of the UGEN floating Wave Energy Converter

Effect of ship length on vertical bending moments induced by abnormal waves

A procedure for the optimization of the hydrodynamic performance of sailing yacht keels

Numerical and Experimental Investigation to Evaluate Wave-Induced Global Design Loads for Fast Ships