Searched for: subject:"filters"
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Beers, Karlijn (author)
This thesis explores the usage of the particle filter as a data assimilation technique to estimate subsurface processes, such as reservoir volume change from space-geodetic PS-InSAR surface measurements. The specific research area is Groningen, where subsidence is induced by hydrocarbon and salt production.
The satellite radar PS-InSAR...
master thesis 2018
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Dereli, R.K. (author), Wang, Xiaofei (author), van der Zee, F. (author), van Lier, J.B. (author)
The impact of nitrogen on biological performance and sludge filterability of anaerobic membrane bioreactors was investigated in two lab-scale cross-flow anaerobic membrane bioreactors that were fed with cheese whey at two different COD:TKN ratios (50 and 190). Nitrogen deprivation adversely affected the biological treatment performance and...
journal article 2018
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Slooter, Rutger (author)
In this research project we investigate a variety of different approaches. A key element in our endeavour is the localising of points of interest (POI’s). These POI’s are the approximate centre points of the cells, the corners or vertices of the cells, and also the cell walls in given directions. Using these POI’s we have built some intuitive...
master thesis 2018
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Frölke, Linde Josien (author)
It has become clear that the global energy system needs to shift away from fossil fuels towards clean, renewable energy sources. Experience in the past decades has shown that at-plate solar heat panels can play a role in the energy system of the future, in particular in solar collector fields for district heat generation. This thesis concerns...
master thesis 2018
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Vos, Jacco (author)
Haptic shared control (HSC) is a method to combine the abilities of humans and machines, in which human and automation jointly exert forces on an input device. According to human-centered design, the underlying controller for HSC should closely resemble human behavior. This paper aims to continuously adapt HSC based on an online identified...
master thesis 2018
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van Marlen, Patricia (author)
The TU Delft and the LUMC are creating a low-field MRI scanner to use in third world countries. This type of MRI scanner has many advantages, but a downside is the amount of noise in the obtained images. A way to reduce noise is diffusion filtering. This thesis discusses the theory of some linear and nonlinear diffusion filtering methods and...
master thesis 2018
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van Stappen, Jeroen (author)
At large oceans depths (5000m) manganese nodules are formed, these are rock shaped objects that contain various rare earth metals, Royal IHC is currently developing equipment to bring these nodules to the shore. The nodules will be transported to the water surface using a Vertical Transport System (VTS).

In the VTS insight of the...
master thesis 2018
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Wijtenburg, Noud (author)
Despite large scale application of performance- and risk management practices, project organisations struggle with responding adequately to early warning signs of project problems. This research investigates the main barriers in responding to early warning signs, and provides recommendations on how to deal with them, in order to stimulate the...
master thesis 2018
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Reinoso Rondinel, R. (author), Unal, C.M.H. (author), Russchenberg, H.W.J. (author)
estimation requires a substantial amount of range smoothing as a result of the noisy characteristic of the measured...
journal article 2018
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Liu, K. (author), Vardon, P.J. (author), Hicks, M.A. (author)
A data assimilation framework, utilising measurements of pore water pressure to sequentially improve the estimation of soil hydraulic parameters and, in turn, the prediction of slope stability, is proposed. Its effectiveness is demonstrated for an idealised numerical example involving the spatial variability of saturated hydraulic...
journal article 2018
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Ghanbari, Sara (author)
To prepare for future challenges, such as possible upcoming organic micro pollutants in the source water, including traces of medicines, pesticides, and industrial by-products, it is expected that the conventional treatment does not ensure a reliable quality of drinking water. As a result, during the past few years, Oasen started to research a...
master thesis 2018
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Snaevarsdottir, Fjola (author)
Imaging sensors are remarkable devices which are able to capture moments and present them in a form available to us for years to come. With the use of material properties and photon particles, charges can be produced which, in combination with electric circuitry, transform into information understandable to the human eye and eventually the brain...
master thesis 2018
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Janssen, Walter (author)
In this MSc. thesis steady-state disaggregation methods for the Non-Intrusive Load Monitoring are researched. The main target is to find methods that have the potential to be practically applicable. These methods are characterized by the fact that they use data that is collected by smart meters, since smart meters are more and more the standard...
master thesis 2018
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Chi, Huang-Da (author)
Developing parallel applications to make efficient use of current and emerging parallel architectures remains a big challenge in modern application development where performance is a first-class citizen. Optimizing conventional video filter applications to take advantage of current multi- and many-core architectures is one such application. This...
master thesis 2018
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Tanaka, T (author), Mohajerin Esfahani, P. (author), Mitter, S.K. (author)
We consider a discrete-time Linear-QuadraticGaussian (LQG) control problem in which Massey’s directed information from the observed output of the plant to the control input is minimized while required control performance is attainable. This problem arises in several different contexts, including joint encoder and controller design for data-rate...
journal article 2018
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Roy, V. (author), Simonetto, A. (author), Leus, G.J.T. (author)
We propose a sensor placement method for spatio-temporal field estimation based on a kriged Kalman filter (KKF) using a network of static or mobile sensors. The developed framework dynamically designs the optimal constellation to place the sensors. We combine the estimation error (for the stationary as well as non-stationary component of the...
journal article 2018
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Liu, J. (author), Isufi, E. (author), Leus, G.J.T. (author)
In the field of signal processing on graphs, graph filters play a crucial role in processing the spectrum of graph signals. This paper proposes two different strategies for designing autoregressive moving average (ARMA) graph filters on both directed and undirected graphs. The first approach is inspired by Prony's method, which...
journal article 2018
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Zhu, Zhengqiu (author), Qiu, S. (author), Chen, Bin (author), Wang, Rongxiao (author), Qiu, Xiaogang (author)
The accurate prediction of hazardous gas dispersion process is essential to air quality monitoring and the emergency management of contaminant gas leakage incidents in a chemical cluster. Conventional Gaussian-based dispersion models can seldom give accurate predictions due to inaccurate input parameters and the computational errors. In order...
journal article 2018
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Choi, Woojun (author), Lee, Yong-Tae (author), Kim, Seonhong (author), Lee, Sanghoon (author), Jang, Jieun (author), Chun, Junhyun (author), Makinwa, K.A.A. (author), Chae, Youngcheol (author)
This paper presents a compact resistor-based CMOS temperature sensor intended for dense thermal monitoring. It is based on an RC poly-phase filter (PPF), whose temperature-dependent phase shift is read out by a frequency-locked loop (FLL). The PPF's phase shift is determined by a zero-crossing (ZC) detector, allowing the rest of the FLL to be...
journal article 2018
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van Groeningen, T. (author), Driessen, J.N. (author), Söhl, J. (author), Voûte, R.L. (author)
When the fire brigade arrives at a burning building, it is of vital importance that people who are still inside can quickly be found. Smart buildings should be able to expose this location data to the fire brigade working in a smart city. In this paper the feasibility is researched of using ultrasonic sound sensors for human presence detection...
journal article 2018
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