Searched for: subject:"filters"
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Benamar, A. (author), Azirou, S. (author), Tahakourt, A. (author)
Dam filters are mainly designed using filter criteria based on the grain size distribution. The main design criteria against which performance is assessed are a criterion for retention of fine particles. The characteristic size of finer fraction influences the size distribution of the filter pore and hence the retention capacity of flowing...
conference paper 2017
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Ammiwala, Huzefa (author)
A petroleum production system is generally modelled based on the concept of nodal analysis, where the entire system is broken down into discrete elements such as near-well bore, tubing, surface choke and flow line. Operating flow rates and pressures can be estimated with a nodal analysis procedure by calculation of the intersection of...
master thesis 2017
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Jiao, Chongze (author)
Recent years, recommender systems are more and more important for solving information overload problem. They sort through massive data to provide users with personalized content and services. Most researchers focus on designing new algorithms to increase the performance of recommender systems. However, some open challenges stand: Why the...
master thesis 2017
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van Wijk, Bryan (author), de Koning, Dorian (author), Lugtenburg, Jochem (author)
A start-up creates videos which users can watch to experience their running or cycling activity all over again. Currently, the company depends on external data sources to generate a video. To be less dependent on these sources the company wants to create their own tracking solution. This solution has to fit in their existing smartphone...
bachelor thesis 2017
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Treffers, Michael (author), Melman, Bart (author)
Current trailers and caravans use overrun brakes, which cause overheated brakes in the mountains. A solution is to design an electric brake system in which the brakes are controlled electronically instead of mechanically. The report discusses the control models associated with braking, anti-sway detection and velocity sensor fusion. The RDW...
bachelor thesis 2017
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Jongeling, Alexander (author)
In the world of DC railway trains nowadays, asynchronous-traction machine with traction controllers, i.e. an inverter with variable output frequency, is implemented. This controller changes the incoming DC voltage into an AC voltage of a variable frequency and RMS amplitude. The disadvantages of switching inverters, compared to a pure sine wave...
master thesis 2017
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Carpaij, Jonas (author), Chandi, Mitchel (author)

bachelor thesis 2017
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Wang, H. (author), Liu, Zhigang (author), Nunez Vicencio, Alfredo (author), Dollevoet, R.P.B.J. (author)
For the condition monitoring of railway catenaries, the potential utilization of pantograph head (pan-head) vertical acceleration instead of pantograph-catenary contact force is discussed in this paper. In order to establish a baseline of the pan-head acceleration before it can be used for health condition monitoring, one of the essential...
conference paper 2017
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Markensteijn, G.C. (author)
Floods are a big problem for Jakarta; the capital of Indonesia is subsiding below mean sea level and floods will become more frequent. Flood protection and measures against subsidence are, therefore, of high importance to Jakarta’s government. One of the options they are studying is a great sea wall to regulate the water levels in Jakarta Bay....
master thesis 2017
document
Yüksel, Cansın (author), Benndorf, J. (author), Lindig, Matthias (author), Lohsträter, Oliver (author)
An efficient resource model updating framework concept was proposed aiming for the improvement of raw material quality control and process efficiency in any type of mining operation. The concept integrates sensor data measured online on the production line into the resource or grade/quality control model and continuously provides locally more...
journal article 2017
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Isufi, E. (author), Loukas, A. (author), Simonetto, A. (author), Leus, G.J.T. (author)
Graph filters play a key role in processing the graph spectra of signals supported on the vertices of a graph. However, despite their widespread use, graph filters have been analyzed only in the deterministic setting, ignoring the impact of stochasticity in both the graph topology and the signal itself. To bridge this gap, we examine the...
journal article 2017
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Rijnsdorp, J. (author)
Re-entry is a term that is applied when one would like to transport some (human) payload from an orbit around a certain body towards the surface of that body. With an entry velocity of multiple kilometers per second, having the vehicle carrying this payload not smashed into pieces at the end of flight is one of the key points of re-entry. Using...
master thesis 2017
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Miletovic, I. (author), Pool, D.M. (author), Stroosma, O. (author), van Paassen, M.M. (author), Chu, Q. P. (author)
Accurate and reliable estimation of the kinematic state of a six degrees-of-freedom Stewart platform is a problem of interest in various engineering disciplines. Particularly so in the area of flight simulation, where the Stewart platform is in widespread use for the generation of motion similar to that experienced in actual flight. Accurate...
journal article 2017
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Prins, P.J. (author)
Experiments in a closed-cycle cryostat suffer from vibrations caused by its pulse tube. To reduce this disturbance, a vibration isolator needs to be placed inside the cryostat. Since mechanical dampers do not work in a cryogenic environment, it requires active damping. This thesis is about the design of a controller for such an active vibration...
master thesis 2017
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Roobeek, M. (author)
Injuries are a sportsman’s worst nightmare: They withhold players from playing, they weaken teams and they force clubs to buy a bench-full of substitutes. On top of that, injuries can cause an awful lot of pain. Regulating match and training intensity can drastically decrease the risk of getting injured. Furthermore, it can optimally prepare...
master thesis 2017
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Fu, Guangliang (author), Prata, Fred (author), Lin, H.X. (author), Heemink, A.W. (author), Segers, AJ (author), Lu, S. (author)
Using data assimilation (DA) to improve model forecast accuracy is a powerful approach that requires available observations. Infrared satellite measurements of volcanic ash mass loadings are often used as input observations for the assimilation scheme. However, because these primary satellite-retrieved data are often two-dimensional (2-D) and...
journal article 2017
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Huijzendveld, T. (author)
master thesis 2017
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De Moes, A.F.A. (author)
Travelling through airports can be quite a stressful experience for passengers. Airlines, such as KLM, want to make the journey of their passengers through airports as comfortable as possible. This thesis proposes an indoor localization system for airlines called AirLoc. The research question was: "Which airport specific indoor localization...
master thesis 2017
document
Munatsi, P. (author)
Spacecraft attitude refers to the orientation of the spacecraft body axes with respect to the inertial reference frame. Attitude determination and control is the estimation of the current orientation of a satellite and controlling or changing it on demand to reach a desired orientation. The SPS-2 Attitude Control System consists of four modes:...
master thesis 2017
document
van Halem, D. (author), van der Laan, H. (author), Soppe, A. I.A. (author), Heijman, Sebastiaan (author)
Ceramic pot filters are considered safe, robust and appropriate technologies, but there is a general consensus that water revenues are limited due to clogging of the ceramic element. The objective of this study was to investigate the potential of high flow ceramic pot filters to produce more water without sacrificing their microbial removal...
journal article 2017
Searched for: subject:"filters"
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