- document
- Rashid, A. (author), Hofman, T. (author), Rosca, B. (author) conference paper 2018
- document
-
Radhakrishnan, V.M. (author), Keller, C.U. (author), Doelman, N.J. (author)Direct imaging of exoplanets requires overcoming the enormous contrast between the exoplanet and its host star, to distinguish the reflected light from the exoplanet, from the diffracted light of the star. Direct optimization of contrast, using nonlinear optimization techniques of the Adaptive Optics (AO) system coupled with coronagraphy, shows...conference paper 2018
- document
-
Fonseca, R.M. (author), Della Rossa, E. (author), Emerick, A.A. (author), Hanea, R.G. (author), Jansen, J.D. (author)Since the early 2000's there has been a significant focus from many groups around the world towards the development and application of innovative technologies in order to improve reservoir management strategies and optimize field development plans. Benchmark studies are a very valuable way of evaluating and demonstrating the status and potential...conference paper 2018
- document
-
Hendriks, M. (author), Ara, H.A. (author), Geilen, M. (author), Marin, R.G. (author), de Jong, R. (author), van der Vlugt, S. (author), Goswami, D. (author)Complex real-time video processing applications with strict throughput constraints are commonly found in a typical healthcare application. The video processing chain is implemented as Field-Programmable Gate Array (FPGA) accelerators (processing blocks) communicating through a number of First-In First-Out (FIFO) buffers. The FIFO buffers are...article 2018
- document
-
Nijkerk, M.D. (author), Gruber, J.M. (author), Boonacker, B. (author)We present a novel optical design tool that makes use of an evolutionary global optimization algorithm. The algorithm has several characteristics that make it well-suited for freeform optics design. With the design tool it is no longer necessary to make the distinction between paraxial degrees of freedom and degrees of freedom related to...conference paper 2018
- document
-
Kupper, F. (author), Forrai, A. (author), Indrajuana, A. (author), Weijst, R.V.D. (author), Keulen, T.V. (author), Willems, F.T.P. (author)Accurate estimation of Brake Specific Fuel Consumption (BSFC) is required to enable on-line optimization of real-world fuel efficiency of diesel engines. This work aims to develop a BSFC estimation method which is accurate enough for an adaptive controller for on-line engine optimization, e.g., using Extremum Seeking. In this paper two different...article 2018
- document
-
Hendriks, M. (author), Ara, H.A. (author), Geilen, M. (author), Basten, A.A. (author), Marin, R.G. (author), de Jong, R. (author), van der Vlugt, S. (author)Many high data-rate video-processing applications are subject to a trade-off between throughput and the sizes of buffers in the system (the storage distribution). These applications have strict requirements with respect to throughput as this directly relates to the functional correctness. Furthermore, the size of the storage distribution relates...article 2018
- document
-
Bultink, C.C. (author), Tarasinski, B. (author), Haandbæk, N. (author), Poletto, S. (author), Haider, N. (author), Michalak, D.J. (author), Bruno, A. (author), DiCarlo, L. (author)We present and demonstrate a general three-step method for extracting the quantum efficiency of dispersive qubit readout in circuit QED. We use active depletion of post-measurement photons and optimal integration weight functions on two quadratures to maximize the signal-to-noise ratio of the non-steady-state homodyne measurement. We derive...article 2018
- document
-
Steenbergen, R.D.J.M. (author), Rózsás, Á. (author), Vrouwenvelder, A.C.W.M. (author)Target reliability levels, design and remaining working lifes and reference periods recommended in various national and international codes and guidelines are sometimes inconsistent. Design working lifes for new structures are typically 50 to 100 years for different types of structures. For existing structures the remaining working life is often...article 2018
- document
-
Feng, T. (author), Leeuwenburgh, O. (author), Hewson, C. (author), Hanea, R.G. (author)Alternating injection of water and gas (WAG) has been widely applied as an oil recovery strategy since the late 1950s. The expected benefits are improved macroscopic sweep, with the water and gas sweeping lower and upper zones of the reservoir respectively, and improved microscopic sweep due to various effects leading to lowering of the residual...conference paper 2017
- document
-
Eendebak, P.T. (author), Schoen, E.D. (author)We study the design of two-level experiments with N runs and n factors large enough to estimate the interaction model, which contains all the main effects and all the two-factor interactions. Yet, an effect hierarchy assumption suggests that main effect estimation should be given more prominence than the estimation of two-factor interactions....article 2017
- document
-
Silvas, E. (author), Hofman, T. (author), Murgovski, N. (author), Etman, L.F.P. (author), Steinbuch, M. (author)The optimal design of a hybrid electric vehicle (HEV) can be formulated as a multiobjective optimization problem that spreads over multiple levels (technology, topology, size, and control). In the last decade, studies have shown that by integrating these optimization levels, fuel benefits are obtained, which go beyond the results achieved with...article 2017
- document
- van Veenstra, A.F.E. (author), Kotterink, B. (author) conference paper 2017
- document
-
Nageshrao, S.P. (author), Jacob, J. (author), Wilkins, S. (author)For conventional buses, based on the decades of their operational knowledge, public transport companies are able to optimize their cost of operation. However, with recent trend in the usage of electric buses, cost optimal operation can become challenging. In this paper an offline optimal charging strategy is developed to minimize the energy cost...article 2017
- document
-
Pinto, M.J. (author), Barros, A.I. (author), Noomen, R. (author), van Gelder, P.H.A.J.M. (author), Lamballais Tessensohn, T. (author)The operational use of satellite systems has been increasing due to technological advances and the reduced costs of satellites and their launching. As such it has become more relevant to determine how to better use these new capabilities which is reflected in an increase in application studies in this area. This work focuses on the problem of...conference paper 2017
- document
-
van Leeuwen, C.J. (author), Pawełczak, P. (author)We propose a novel incomplete cooperative algorithm for distributed constraint optimization problems (DCOPs) denoted as Cooperative Constraint Approximation (CoCoA). The key strategy of the algorithm is to use a semi-greedy approach in which knowledge is distributed amongst neighboring agents, and assigning a value only once instead of an...conference paper 2017
- document
- Phillipson, F. (author) conference paper 2017
- document
-
Medina, R. (author), Stuijk, S. (author), Goswami, D. (author), Basten, T. (author)Image-Based control systems extract information by a camera and an image processing algorithm. The challenge of such controllers is that the sensing latency deteriorates the control performance. Multi-core technology can be used to implement the sensing algorithm in a pipelined fashion. More processing resources potentially lead to better...conference paper 2017
- document
-
Jacobs, P. (author)The spatial distribution of Particulate Matter has been studied during class time in a naturally ventilated classroom. Measurements were taken between the pupils at breathing height, and at the side and front between 0,15 and 4 m height. With regard to PM1, PM2,5 and PM10, hardly any differences were observed in concentration, between the...conference paper 2017
- document
-
van der Aa, P. (author), Manie, J. (author)Finite element analysis (FEA) can be used to design structures. Methods for linear and nonlinear FEA are applied to all kinds of geometries. A simplified geometry structure, or basic element type, sometimes does take into account all the necessary effects for the design purposes. In other analyses more advanced modelling is absolutely necessary....conference paper 2017