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Krumpel, A.H. (author), Bos, A.J.J. (author), Bessière, A. (author), Van der Kolk, E. (author), Dorenbos, P. (author)
A detailed and systematic electron trapping study was conducted in the scientifically important wide band-gap materials LuPO4 and YPO4 doubly doped with Ce3+ and Ln3+ (Ln=Sm, Dy, Ho, Er, Tm). By using vacuum-ultraviolet luminescence spectroscopy and detailed thermoluminescence spectroscopy it was possible to establish by two independent methods...
journal article 2009
document
Bos, B.B. (author)
master thesis 2009
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Bos, A.J.J. (author), Wallinga, J. (author)
We present mathematical descriptions of optically stimulated luminescence (OSL) signals under linearly, hyperbolically, exponentially, and reciprocally increasing stimulation intensity for a one-trap one-recombination-center model assuming charge transfer governed by first-order kinetics. Depending on the stimulation mode, the OSL signal can be...
journal article 2009
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Drozdowski, W. (author), Dorenbos, P. (author), Drozdowska, R. (author), Bos, A.J.J. (author), Poolton, N.R.J. (author), Tonelli, M. (author), Alshourbagy, M. (author)
In this paper we present the studies performed on a set of Lu3Al5O12:Pr (LuAG:Pr) crystals with praseodymium concentration between 1.5 and 10%, grown by the micro-pulling-down (muPD) technique. The research comprises the measurements of X-ray excited emission spectra and 137Cs gamma-ray pulse height spectra in a range from 78 to 600 K, and...
journal article 2009
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Den Dekker, A.J. (author), Poot, D.H.J. (author), Bos, R. (author), Sijbers, J. (author)
Functional magnetic resonance imaging (fMRI) data that are corrupted by temporally colored noise are generally preprocessed (i.e., prewhitened or precolored) prior to functional activation detection. In this paper, we propose likelihood-based hypothesis tests that account for colored noise directly within the framework of functional activation...
journal article 2009
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Luth, H. Robert (author), Bos, J. (author), Keuning, J.A. (author), van der Hout, I. (author)
conference paper 2009
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Klaassen, R.G. (author), Bos, M.H.P.C. (author), Roubos, Tim (author)
Delft University of Technology (DUT) screened her (non-native English) scientific staff on their level of language proficiency over the year academic 2006/2007. In this paper the large scale operation, involving planning, policy decisions, assessment means, advise and training are discussed. Results are framed against the background of becoming...
conference paper 2009
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Krumpel, A.H. (author), Van der Kolk, E. (author), Zeelenberg, D. (author), Bos, A.J.J. (author), Krämer, K.W. (author), Dorenbos, P. (author)
Photo- and thermoluminescence (TL) spectra of NaLaF4:Ln3+ (Ln = Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm) and NaLaF4:Ce3+, Ln3+ (Ln = Nd,Sm,Ho,Er,Tm) are presented and used together with the empirical Dorenbos model in order to establish the 4f energy level positions of all tri- and divalent lanthanide ions doped in NaLaF4. The information will be...
journal article 2008
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Bos, E. (author)
master thesis 2008
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Bos, J.A. (author)
Installed wind power world wide is increasing rapidly. The increase in wind power in the European electricity grid is expected to have its impact on the system behaviour. A European study, European Wind Integration Study (EWIS), was thus set up to study the impact of wind power. This thesis was carried out in parallel with EWIS and overlaps at...
master thesis 2008
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Drozdowski, W. (author), Dorenbos, P. (author), Bos, A.J.J. (author), Bizarri, G. (author), Owens, A. (author), Quaranti, F.G.A. (author)
CeBr3 crystals have been studied to assess their utility as potential gamma ray spectrometers for future ESA planetary missions. Pulse height spectra, scintillation time profiles, X-ray excited emission spectra, and photoluminescence spectra have been recorded as a function of temperature between 78 and 600 K. In addition, the influence of...
journal article 2008
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Bos, W.M. (author)
Corrosion of metals has an enormous economic impact. Fortunately, the rate at which corrosion processes take place can be reduced, often to a point where, at least temporarily, corrosion is virtually non-existent. One of these, corrosion-control methods is barrier protection. The concept of barrier rotection is to separate the metal substrate...
doctoral thesis 2008
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Bos, F.M. (author), Lentink, D. (author), Van Oudheusden, B.W. (author), Bijl, H. (author)
The influence of different wing kinematic models on the aerodynamic performance of a hovering insect is investigated by means of two-dimensional time-dependent Navier–Stokes simulations. For this, simplified models are compared with averaged representations of the hovering fruit fly wing kinematics. With increasing complexity, a harmonic model,...
journal article 2007
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Bos, M.S. (author), Fernandes, R.M.S. (author), Williams, S.D.P. (author), Bastos, L. (author)
It has been generally accepted that the noise in continuous GPS observations can be well described by a power-law plus white noise model. Using maximum likelihood estimation (MLE) the numerical values of the noise model can be estimated. Current methods require calculating the data covariance matrix and inverting it, which is a significant...
journal article 2007
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Bos, M. (author), Den Nederlanden, H. (author), Lagendijk, O. (author)
Het technisch rapport ruimtelijke kwaliteit heeft als doel het werken aan ruimtelijke kwaliteit concreet te maken in de planvorming voor rivierveiligheid, zowel in dijkversterking- als rivierverruimingprojecten. Om dit doel te bereiken besteedt het technisch rapport aandacht aan de methode die kan worden toegepast om ruimtelijke kwaliteit te...
report 2007
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Van der Kolk, E. (author), De Haas, J.T.M. (author), Bos, A.J.J. (author), Van Eijk, C.W.E. (author), Dorenbos, P. (author)
A combined photoconductivity, absorption, and thermoluminescence study was performed to understand the absence of luminescence from Ce3+ in LaAlO3:Ce3+. It is demonstrated that the absence of luminescence is the result of Ce3+ ionization from the 5d excited states, which are all located in the conduction band. Ce3+ ionization is accompanied by...
journal article 2007
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Bos, D. (author), Tuenter, T. (author)
Onderzoek naar de effecten van een eventuele veldproef waarbij voor een langere tijd in een bepaald gebied muskusratten niet bestreden worden.
report 2007
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Bos, J.W.G. (author), Zandbergen, H.W. (author), Lee, M.H. (author), Ong, N.P. (author), Cava, R.J. (author)
journal article 2007
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Bos, J.E. (author), van der Hout, I.E. (author), Keuning, J.A. (author)
report 2007
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Bos, R. (author)
doctoral thesis 2006
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