Managing uncertainties in the collaboration process of integraal programmeren

The energy system is changing and is becoming more important in the spatial-economic development of the Netherlands. The current energy planning system is insufficiently equipped to deal with these changes. Therefore transmission and distribution system operators, provinces and municipalities have come together in the process of integraal...

Sustainability, a requirement in projects: An exploratory research to develop a framework for sustainability requirements management in Transmission System Operators (TSO) projects

Sustainability has become a prominent term in policy-oriented research as an expression of what public policies seek to achieve (Kuhlman & Farrington,2010). It has been a developing idea, frequently receiving attention from society, governmental agendas, and the innovative field (Tamak,2017). Organisations are now rapidly taking steps...

Evaluating the generalizability and transferability of water distribution deterioration models

Small utilities often lack the required amount of data to train machine learning-based models to predict pipe failures, and hence are unable to harness the possibilities and predictive power of machine learning. This study evaluates the generalizability and transferability of a machine learning model to see if small utilities can benefit from...

Quantifying uncertainties for Risk-Based Inspection planning using in-service Hull Structure Monitoring of FPSO hulls

In order to obtain valuable information from an Hull Structure Monitoring system, a large data set and consistent analysis of that data is required. The monitoring requires significant efforts over multiple years and as a result, uncertainties obtained from in-service measurements are rarely published. Instead, researchers have to rely on...

A personalized approach for communicating found anomalies in Netflow data to end-users

In this research, we use different supervised and unsupervised machine learning techniques to detect anomalies in NetFlow data. We aim to create a system for home or small-business use where the user is in control. We use WEKA for the machine learning models and feature selection. The UGR’16 dataset is used to train and test the models. We...

The Robustness of Energy Systems: A novel method to explore the impact of uncertainties on Energy System Design Optimization Models

Energy system planners and decision makers rely on Energy System Optimization Models in assisting long-term decisions that ensure robust real-world energy system designs that deliver the energy transition goal. Optimization usually provides a single 'optimal' outcome which misrepresents the underlying uncertainties and the large set of possible...

Geodetic parameter estimation for small-satellite small-body missions: An uncertainty-driven approach

This thesis work has been motivated by the growing interest in small-spacecraft small-body missions and more specifically inspired by a proposed mission to the largest Martian Trojan (5261) Eureka. This binary asteroid represents a promising target for a planetary mission, as a better understanding of its formation and evolution would provide...

Uncertainties in Long-Term Twenty-First Century Process-Based Coastal Sea-Level Projections

Many processes affect sea level near the coast. In this paper, we discuss the major uncertainties in coastal sea-level projections from a process-based perspective, at different spatial and temporal scales, and provide an outlook on how these uncertainties may be reduced. Uncertainty in centennial global sea-level rise is dominated by the ice...

An Insight to the Cornucopia of Possibilities in Calibration Data Collection

The calibration of models for urban drainage systems has become more and more important as especially the usage of detailed models has increased considerably over the last years as the basis for planning and design. Still the effects originating from the choice of data used for model calibration are little known and advice on planning...

Knowledge co-production in climate adaptation planning of archaeological sites

Climate adaptation is a process for minimizing the risks of damage or loss to coastal archaeological sites. Yet, adaptation requires identifying and prioritizing among the diverse aspects of a site’s significance, as not all sites can be simultaneously adapted due to financial and human capital constraints. Developing a measurement framework...

Assessing safety of nature-based flood defenses: Dealing with extremes and uncertainties

Vegetated foreshores adjacent to engineered structures (so-called hybrid flood defenses), are considered to have high potential in reducing flood risk, even in the face of sea level rise and increasing storminess. However, foreshores such as salt marshes and mangrove forests are generally characterized by relatively strong temporal and...

A heuristic method for measurement site selection in sewer systems

Although calibration of a hydrodynamic model depends on the availability of measurement data representing the system behavior, advice for the planning of necessary measurement campaigns for model calibration is scarce. This work tries to address this question of efficient measurement site selection on a network scale for the objective of...

Uncertainty evaluation of image-based tumour control probability models in radiotherapy of prostate cancer using a visual analytic tool

Functional imaging techniques provide radiobiological information that can be included into tumour control probability (TCP) models to enable individualized outcome predictions in radiotherapy. However, functional imaging and the derived radiobiological information are influenced by uncertainties, translating into variations in individual TCP...

Transferring Moral Responsibility for Technological Hazards: The Case of GMOs in Agriculture

The use of genetically modified organisms in agriculture makes great promises of better seeds, but also raises many controversies about ownership of seeds and about potential hazards. I suggest that owners of these seeds bear the responsibility to do no harm in using these seeds. After defining the nature of this responsibility, this paper...

Method to assess the performance of domestic ventilation systems considering the influence of uncertainties

The ventilation system plays an important role in the indoor environment of a domestic building. A ventilation system is normally designed based on the national or regional regulations. Although ventilation systems are designed based on the same design rules, performance deviations between different ventilation systems in different houses come...

Combining Early Contractor Involvement and Availability-Based Contracting in Complex Infrastructure Projects