Searched for: subject%3A%22Nonlinear%255C%2Bsystems%22
(1 - 13 of 13)
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Pippia, T. (author), Lago, J. (author), Coninck, R.D. (author), Sijs, J. (author), Schutter, B.D. (author)
In the context of building heating systems control in office buildings, the current state-of-the-art applies either a deterministic Model Predictive Control (MPC) controller together with a nonlinear model, or a linearized model with a stochastic MPC controller. Deterministic MPC considers only one realization of the external disturbances, which...
conference paper 2019
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van der Weijst, R. (author), van Keulen, T. (author), Willems, F.P.T. (author)
In the context of model-free optimization of dynamic nonlinear multiple-input-single-output (MISO) systems using extremum-seeking (ES), accurate and fast derivative estimation of the systems steady-state performance map is essential. This paper presents a generalized derivative estimator (DE) framework for unknown MISO static maps. To this...
article 2017
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Jolani, S. (author), Debray, T.P.A. (author), Koffijberg, H. (author), van Buuren, S. (author), Moons, K.G.M. (author)
Individual participant data meta-analyses (IPD-MA) are increasingly used for developing and validating multivariable (diagnostic or prognostic) risk prediction models. Unfortunately, some predictors or even outcomes may not have been measured in each study and are thus systematically missing in some individual studies of the IPD-MA. As a...
article 2015
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Shtessel, Y. (author), Glumineau, A. (author), Plestan, F. (author), Weiss, M. (author)
A perturbed nonlinear system of relative degree two controlled by output feedbacks discontinuous-hybrid-impulsive control is studied. The output hybrid-impulsive terms serve to drive instantaneously the system's trajectory to the origin or to its small vicinity. The output feedback impulsive action combined with the output relay feedback control...
conference paper 2014
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Suy, H.M.R. (author), Fey, R.H.B. (author), Galanti, F.M.B. (author), Nijmeijer, H. (author), TNO Bouw en Ondergrond (author)
Many dynamical systems are subject to some form of non-smooth or discontinuous nonlinearity. One eminent example of such a nonlinearity is friction. This is caused by the fact that friction always opposes the direction of movement, thus changing sign when the sliding velocity changes sign. In this paper, a structure with friction-based seismic...
article 2007
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TNO Defensie en Veiligheid (author), Meta, A. (author), Hoogeboom, P. (author), Ligthart, L.P. (author)
This paper presents a novel approach for processing data acquired with Frequency Modulated Continuous Wave (FMCW) dechirp-on-receive systems by using a non-linear frequency scaling algorithm. The range frequency non-linearity correction, the Doppler shift induced by the continuous motion and the range migration removal are performed at the same...
conference paper 2006
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Portengen, L. (author), Preller, L. (author), Tielen, M. (author), Doekes, G. (author), Heederik, D. (author), TNO Kwaliteit van Leven (author)
Background: Recent studies have reported a low prevalence of atopic sensitization and respiratory allergy in children growing up on farms. Objectives: We sought to evaluate the dose-response relationship between endotoxin and atopic sensitization in adult farmers and to assess the effect on respiratory health outcomes. Methods: Data on endotoxin...
article 2005
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TNO Technische Menskunde (author), Steeneken, H.J.M. (author), Verhave, J.A. (author)
Active noise reduction is a successful addition to passive ear-defenders for improvement of the sound attenuation at low frequencies. Design and assessment methods are discussed, focused on subjective and objective attenuation measurements, stability, and high noise level applications. Active noise reduction systems are suitable for integration...
article 2004
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van Lieshout, J.J. (author), Toska, K. (author), van Lieshout, E.J. (author), Eriksen, M. (author), Wall√łe, L. (author), Wesseling, K.H. (author), TNO Biomedical Instrumentation (author)
The proper understanding of the cardiovascular mechanisms involved in complaints of short-lasting dizziness and the evaluation of unexplained recurrent syncope requires continuous monitoring of cardiac stroke volume (SV) in addition to blood pressure and heart rate. The primary aim of the present study was to evaluate a pulse wave analysis...
article 2003
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Koning, R.F.F. (author), Chou, C.T. (author), Verhaegen, M.H.G. (author), Klaassens, J.B. (author), Uittenbogaart, J.R. (author)
AC machines are applied in actuator systems for many applications. The development of fast processors open up the possibilities to apply new techniques for identification and control of electrical drives in real-time, so as to improve and optimize their performances. The paper presents a systematic approach to identify the physically relevant...
article 2000
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van de Vorst, E.L.B. (author), Assinck, F.H. (author), de Kraker, A. (author), Fey, R.H.B. (author), van Campen, D.H. (author), TNO Wegtransportmiddelen TNO Bouw (author)
This article deals with the experimental verification of the long-term behavior of a periodically excited linear beam supported by a one-sided spring. Numerical analysis of the beam showed subharmonic, quasi-periodic, and chaotic behavior. Further, three different routes leading to chaos were found. Because of the relative simplicity of the beam...
article 1996
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TNO Biomedical Instrumentation (author), Wesseling, K.H. (author), Jansen, J.R.C. (author), Settels, J.J. (author), Schreuder, J.J. (author)
We computed aortic flow pulsations from arterial pressure by simulating a nonlinear, time-varying three-element model of aortic input impedance. The model elements represent aortic characteristic impedance, arterial compliance, and systemic vascular resistance. Parameter values for the first two elements were computed from a published, age...
article 1993
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Radiologische Dienst TNO (author), van Dijk, J.W.E. (author), Julius, H.W. (author)
In constant temperature hot gas TLD systems the heating profile of the TL chip is an exponential function of time. A method is presented which enables glow curve deconvolution for non-linear heating systems. The reproducibility of the heating process of constant temperature hot gas systems can be such that a fast linear optimisation procedure...
article 1993
Searched for: subject%3A%22Nonlinear%255C%2Bsystems%22
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