Searched for: subject:"closed%5C+loop"
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van Tiel, Luuc (author)
Swapfiets’ product service system (PSS) offers bicycles as a service: customers pay a monthly fee to get a Swapfiets bicycle and whenever something is wrong with the bicycle, Swapfiets makes sure the bicycle is repaired or replaced with a working bicycle. <br/>Two of Swapfiets’ longer term challenges form the subjects of this research: 1) What...
master thesis 2019
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van der Zwaag, Peterke (author)
Falling is a problem in elderly, affecting 30% of people over 65 years old, and leading to serious injuries in 10% of the cases. Because balance is controlled in a closed loop system with a high level of redundancy, the cause of impaired balance control is often unknown. A balance control model in combination with perturbed balance experiments...
master thesis 2019
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Boersma, S. (author)
Electricity consumption is increasing on a global level. In 2017, non-renewable energy sources such as crude oil, natural gas and coal provided 76% of the required energy, while 24% came from renewable sources such as hydro, wind and solar. Non-renewable sources are finite because they do not replenish rapidly enough relative to the rate at...
doctoral thesis 2019
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Boersma, S. (author), Doekemeijer, B.M. (author), Siniscalchi Minna, S. (author), van Wingerden, J.W. (author)
Active power control for wind farms is needed to provide ancillary services. One of these services is to track a power reference signal with a wind farm by dynamically de- and uprating the turbines. In this paper we present a closed-loop wind farm controller that evaluates 1) thrust coefficients on a seconds-scale that provide power tracking...
journal article 2019
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Gomes da Conceição, Tatiana (author)
master thesis 2018
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Suresh Kumar, Nivas Kumar (author)
In research, the overall power production in a wind farm is typically increased by employing model-based wind farm control. A controller, in an open-loop setting, operates based on the velocity of the wind flow, predicted by a wind farm model. For a controller to achieve the desired level of power production, a wind farm model has to be accurate...
master thesis 2018
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Lin, Dezhi (author)
This thesis discusses the theory, circuit design, software design and measurements of an atto-Farad resolution closed-loop impedance measurement bridge circuit for capacitive sensors implemented using commercial off the shelf components.<br/>A lock-in amplifier (LIA) method is used here. The capacitive sensor embedded in an impedance bridge is...
master thesis 2018
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Corman, Francesco (author), Quaglietta, E. (author), Goverde, R.M.P. (author)
Railway transportation provides sustainable, fast and safe transport. Its attractiveness is linked to a broad concept of service reliability: the capability to adhere to a timetable in the presence of delays perturbing traffic. To counter these phenomena, real-time rescheduling can be used, changing train orders and times, according to rules of...
journal article 2018
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Kerklaan, Martijn (author)
The dynamic relation between the displacement and reaction torque of the human joint is known as joint impedance. Properly quantifying joint impedance has medical potential in the diagnosis, understanding and modelling of movement disorders associated with neuromuscular conditions like cerebral palsy, stroke, dystonia and old age. The...
master thesis 2018
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Goncalves Dias De Barros, E. (author)
Over the past decades, many technological advances have unlocked new opportunities to boost efficiency in the oil and gas industry (e.g., complex well drilling, injection of advanced chemicals, sophisticated instrumentation). The real engineering challenge is to apply these technologies in the best possible way for each particular case. This...
doctoral thesis 2018
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Leising, E.J. (author), Quist, J.N. (author), Bocken, N.M.P. (author)
The Circular Economy (CE) gained significant traction in business and academia. While in the building sector issues around energy efficiency are being widely explored, CE is still a relatively new topic. This article reports on three CE pilots in the Dutch building sector and develops a collaboration tool for developing and operating circular...
journal article 2018
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Teixeira, Andre M.H. (author), Ferrari, R. (author)
In this paper, the problem of detecting stealthy false-data injection attacks on the measurements is considered. We propose a multiplicative watermarking scheme, where each sensor’s output is individually fed to a SISO watermark generator whose parameters are supposed to be unknown to the adversary. Under such a scenario, the detectability...
conference paper 2018
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Gunes, B. (author), van Wingerden, J.W. (author), Verhaegen, M.H.G. (author)
In this paper, we present a novel multiple input multiple output (MIMO) linear parameter varying (LPV) state-space refinement system identification algorithm that uses tensor networks. Its novelty mainly lies in representing the LPV sub-Markov parameters, data and state-revealing matrix condensely and in exact manner using specific tensor...
journal article 2018
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Vogtländer, J.G. (author), Scheepens, A.E. (author), Bocken, N.M.P. (author), Peck, D.P. (author)
Eco-efficient Value Creation is a method to analyse innovative product and service design together with circular business strategies. The method is based on combined analyses of the costs, market value (perceived customer value) and eco-costs. This provides a prevention-based single indicator for ‘external environmental costs’ in LCA. The...
journal article 2017
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Benndorf, J. (author), Jansen, J.D. (author)
Advanced data acquisition and process modelling technology provide ‘real-time’ data and decision support capacity for different aspects of the resource extraction process. Closed-loop approaches have recently been applied to utilize information extracted from these data in combination with advanced computing technology for improved production...
journal article 2017
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van der Veen, G.J. (author), Langelaar, M. (author), van der Meulen, Stan (author), Laro, Dick (author), Aangenent, Wouter (author), van Keulen, A. (author)
In pursuit of better accuracy, higher speed and larger scale, manufacturers of high-performance devices increasingly rely on components which have been designed with a multidisciplinary approach from the outset. In the context of motion systems, this means that for instance structural mechanics, control engineering and thermal analysis are...
journal article 2017
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Geißdörfer, M. (author), Savaget, Paulo (author), Bocken, N.M.P. (author), Hultink, H.J. (author)
While the terms Circular Economy and sustainability are increasingly gaining traction with academia, industry, and policymakers, the similarities and differences between both concepts remain ambiguous. The relationship between the concepts is not made explicit in literature, which is blurring their conceptual contours and constrains the...
journal article 2017
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Gunes, B. (author), van Wingerden, J.W. (author), Verhaegen, M.H.G. (author)
The major bottleneck in state-of-the-art Linear Parameter Varying (LPV) subspace methods is the curse-of-dimensionality during the first regression step. In this paper, the origin of the curse-of-dimensionality is pinpointed and subsequently a novel method is proposed which does not suffer from this bottleneck. The problem is related to the...
journal article 2017
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Lopez Angarita, G.A. (author)
Surface-related multiple elimination (SRME) is one of the most commonly used methods for suppressing surface multiples. However, in order to obtain an accurate surface multiple estimation, dense source and receiver sampling is required. The traditional approach to this problem is performing data interpolation prior to multiple estimation. Though...
doctoral thesis 2016
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Bocken, N.M.P. (author), de Pauw, I.C. (author), Bakker, C.A. (author), van der Grinten, B. (author)
The transition within business from a linear to a circular economy brings with it a range of practical challenges for companies. The following question is addressed: What are the product design and business model strategies for<br/>companies that want to move to a circular economy model? This paper develops a framework of strategies to guide...
journal article 2016
Searched for: subject:"closed%5C+loop"
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