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Sun, Sihao (author), Wang, Xuerui (author), Chu, Q. P. (author), de Visser, C.C. (author)In order to further expand the flight envelope of quadrotors under actuator failures, we design a nonlinear sensor-based fault-tolerant controller to stabilize a quadrotor with failure of two opposing rotors in the high-speed flight condition (>8 m/s). The incremental nonlinear dynamic inversion approach which excels in handling model...journal article 2020
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Rostampour, Vahab (author), Ferrari, Riccardo M.G. (author), Teixeira, Andre M.H. (author), Keviczky, T. (author)In this article two limitations in current distributed model based approaches for anomaly detection in large-scale uncertain nonlinear systems are addressed. The first limitation regards the high conservativeness of deterministic detection thresholds, against which a novel family of set-based thresholds is proposed. Such set-based thresholds...journal article 2020
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Roy, S. (author), Baldi, S. (author), Fridman, Leonid M. (author)Adaptive Sliding Mode Control (ASMC) aims to adapt the switching gain in such a way to cope with possibly unknown uncertainty. In state-of-the-art ASMC methods, a priori boundedness of the uncertainty is crucial to ensure boundedness for the switching gain and uniformly ultimately boundedness. A priori bounded uncertainty might impose a...journal article 2020
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Mullakkal-Babu, F.A. (author), Wang, M. (author), He, X. (author), van Arem, B. (author), Happee, R. (author)We present an approach to assess the risk taken by on-road vehicles within the framework of artificial field theory, envisioned for safety analysis and design of driving support/automation applications. Here, any obstacle (neighboring entity on the road) to the subject vehicle is treated as a finite scalar risk field that is formulated in the...journal article 2020
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Markov, Iliya (author), Bierlaire, Michel (author), Cordeau, Jean François (author), Maknoon, M.Y. (author), Varone, Sacha (author)We solve a rich routing problem inspired from practice, in which a heterogeneous fixed fleet is used for collecting recyclable waste from large containers over a finite planning horizon. Each container is equipped with a sensor that communicates its level at the start of the day. Given a history of observations, a forecasting model is used to...journal article 2020
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Guo, Yuxue (author), Fang, Guohua (author), Xu, Yue Ping (author), Tian, X. (author), Xie, Jingkai (author)Climate and land use/cover changes are the main factors altering hydrological regimes. To understand the impacts of climate and land use/cover changes on streamflow within a specific catchment, it is essential to accurately quantify their changes given many possibilities. We propose an integrated framework to assess how individual and...journal article 2020
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Ale, B.J.M. (author), Hartford, Des N.D. (author), Slater, David H. (author)Since Nassim Taleb coined black swan as an event that occurred as a complete surprise for everybody, the metaphor of the black swan has been applied to a much wider variety of events. Black swan events now comprise events that are a surprise for some but not for others, events that have a low likelihood, events that were not believed to be...journal article 2020
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Meyer, Han (author)We need to tell a new story about urbanizing delta regions. Historically, large-scale ‘iconic’ hydraulic works and modern industrial ports have been celebrated as showing the power of humans to control and subject nature. The emphasis on this part of cultural heritage tends to bury the remains of engineering and urban development of the previous...book chapter 2020
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Marín, Luis Gabriel (author), Sumner, Mark (author), Muñoz-Carpintero, Diego (author), Köbrich, Daniel (author), Pholboon, Seksak (author), Sáez, Doris (author), Nunez, Alfredo (author)This paper presents a two-level hierarchical energy management system (EMS) for microgrid operation that is based on a robust model predictive control (MPC) strategy. This EMS focuses on minimizing the cost of the energy drawn from the main grid and increasing self-consumption of local renewable energy resources, and brings benefits to the...journal article 2019
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Tscheikner-Gratl, F. (author), Bellos, Vasilis (author), Schellart, Alma (author), Moreno Rodenas, A. (author), Muthusamy, Manoranjan (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author), Shucksmith, James (author), Heuvelink, Gerard B.M. (author)This paper aims to stimulate discussion based on the experiences derived from the QUICS project (Quantifying Uncertainty in Integrated Catchment Studies). First it briefly discusses the current state of knowledge on uncertainties in sub-models of integrated catchment models and the existing frameworks for analysing uncertainty. Furthermore, it...review 2019
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Brocal, Francisco (author), González-Gaya, G. (author), Sebastián, Miguel A. (author), Reniers, G.L.L.M.E. (author), Paltrinieri, Nicola (author)As a result of the important and rapid technological advances in industrial processes, in recent years the scientific interest in the field of occupational health and safety (OH&S) is increasing. This scenario of continuous change generates both new opportunities and new challenges in the workplace. This circumstance allows eliminating or...conference paper 2019
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Abrishami, S. (author), Khakzad, N. (author), van Gelder, P.H.A.J.M. (author), Hosseini, Seyed Mahmoud (author)Success Likelihood Index Model (SLIM) is one of the widely-used methods in human reliability assessment especially when data is insufficient. However, this method suffers from uncertainty as it heavily relies on expert judgment for determining the model parameters such as the rates and weights of the performance shaping factors. The present...conference paper 2019
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Roy, S. (author), Baldi, S. (author)This letter proposes a new adaptive control method for a class of nonlinearly-parametrized switched systems that includes Monod kinetics and Euler-Lagrange systems with nonlinear in parameters form as special cases. As compared to the adaptive switched frameworks proposed in literature, the proposed adaptation framework has the distinguishing...journal article 2019
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Luthfi, A. (author), Janssen, M.F.W.H.A. (author)Over the last decade, more and more data are collected and opened. Governments actively stimulate the opening of data to increase citizen engagement to support policy-making processes. Evidence-based policy-making is the situation whereby decisions made are based on factual data. The common expectation is that releasing data will result in...journal article 2019
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Birhanu, A. (author), Masih, I. (author), van der Zaag, P. (author), Nyssen, J. (author), Cai, X. (author)Land use and land cover (LULC) changes are continuous phenomena, often driven by natural and anthropogenic factors. In Ethiopia, a conversion of forest and grass lands into cultivated and urbanized lands has been reported. While such changes are known to have multidirectional impacts on river flows, erosion and sedimentation, and the socio...journal article 2019
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Kulsum, U. (author), Timmermans, Jos (author), Khan, M. S.A. (author), Thissen, W.A.H. (author)Delta communities worldwide are facing a multitude of challenges in their life and livelihood. In many developing countries, improving the quality of life and livelihood is a key challenge. While development is a central goal of delta planning in such countries, the effectiveness of planning is challenged by uncertain changes in climate and...journal article 2019
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Marquez Calvo, O.O. (author), Solomatine, D.P. (author)This paper considers the problem of robust optimization, and presents the technique called Robust Optimization and Probabilistic Analysis of Robustness (ROPAR). It has been developed for finding robust optimum solutions of a particular class in model-based multi-objective optimization (MOO) problems (i.e. when the objective function is not known...journal article 2019
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Rostampour, Vahab (author), Ter Haar, Ole (author), Keviczky, T. (author)This paper presents a framework to carry out multi-area stochastic reserve scheduling (RS) based on an AC optimal power flow (OPF) model with high penetration of wind power using distributed consensus and the alternating direction method of multipliers (ADMM). We first formulate the OPF-RS problem using semidefinite programming (SDP) in...journal article 2019
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Comes, M. (author), Bergtora Sandvik, Kristin (author), van de Walle, B.A. (author)Purpose: The purpose of this paper is to analyze how far technology and information enable, facilitate or support the planning and implementation decisions in humanitarian vaccine cold chains for vaccination campaigns. The authors specifically focus on three emerging technologies that have the potential to create more flexible conditions in...journal article 2018
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Meneguzzi, Felipe (author), Magnaguagno, Mauricio C. (author), Singh, Munindar P. (author), Telang, Pankaj R. (author), Yorke-Smith, N. (author)This article addresses the challenge of planning coordinated activities for a set of autonomous agents, who coordinate according to social commitments among themselves. We develop a multi-agent plan in the form of a commitment protocol that allows the agents to coordinate in a flexible manner, retaining their autonomy in terms of the goals...journal article 2018