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Moret, J.L.T.M. (author), Griffiths, Matthew B.E. (author), Frijns, Jeannine E.B.M. (author), Terpstra, B.E. (author), Wolterbeek, H.T. (author), Barry, Seán T. (author), Denkova, A.G. (author), van Ommen, J.R. (author)
Atomic layer deposition (ALD) is a versatile gas phase coating technique that allows coating of complex structured materials, as well as high-surface area materials such as nanoparticles. In this work, ALD is used to deposit a lutetium oxide layer on TiO<sub>2</sub> nanoparticles (P25) in a fluidized bed reactor to produce particles for...
journal article 2020
document
Kolen, B. (author), Vermeulen, C.J.M. (author), Terpstra, T. (author), Kerstholt, J. (author)
In this research vertical evacuation is defined as the displacement of people to dry floors in buildings or public shelters that are located inside the threatened or flooded area. Vertical evacuation strategies can be implemented in combination with, or as an alternative to, preventive evacuate in case preventive evacuation is not entirely...
report 2015
document
Bode, P. (author), Denkova, A.G. (author), Steinebach, O.M. (author), Terpstra, B.E. (author), Wolterbeek, H.T. (author)
A column material and a method for adsorbing Mo-99 in a 99Mo/ 99m Tc generator Abstract The invention relates to a column material for adsorbing Mo-99 in a 99 Mo/ 99m Tc generator, said column material (4) comprising a mesoporous MSU- X Al2O3 and/or TUD1-Al material. Preferably, a pore size of the mesoporous material is in the range of 1.5 - 50...
patent 2013
document
De Boer, J. (author), Botzen, W. (author), Terpstra, T. (author)
Dit onderzoek is bedoeld voor overheden die willen weten waar ze op moeten letten als ze met burgers willen communiceren over de risico’s van wateroverlast en overstromingen in buitendijks en binnendijks gebied. Wat zijn dan punten die invloed hebben op de perceptie en het verantwoordelijksbesef van burgers? Welke kenmerken van situaties en...
report 2012
document
Kolen, B. (author), Slomp, R. (author), Van Balen, W. (author), Terpstra, T. (author), Bottema, M. (author), Nieuwenhuis, S. (author)
Op 28 februari 2010, rond 2 uur in de ochtend, bereikte de storm Xynthia de westkust van Frankrijk. Op meerdere locaties bezweken de waterkeringen, met kustoverstromingen tot gevolg. Meer dan 50.000 hectare aan land overstroomde. In totaal vielen in Frankrijk 47 doden, de meesten door het water en een enkeling door de gevolgen van de storm....
report 2010
document
Kolen, B. (author), Slomp, R. (author), Van Balen, W. (author), Terpstra, T. (author), Bottema, M. (author), Nieuwenhuis, S. (author)
On the 28th of February 2010 at 2 a.m. the storm Xynthia hit the French Atlantic coast. The storm surge combined with the high tide and large waves caused flood defences to fail along the coastline from the Gironde (Bordeaux) to the Loire Estuary. A significant amount of land, (>50 000 ha) was consequently flooded and 47 people died as a result...
report 2010
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Kolen, B. (author), Slomp, R. (author), Van Balen, W. (author), Terpstra, T. (author), Bottema, M. (author), Nieuwenhuis, S. (author)
Le 28 février 2010, vers 2 heures du matin, la tempête Xynthia atteint la côte occidentale de la France. A plusieurs endroits, les digues, dunes et d’autres ouvrages cédèrent, donnant lieu à des inondations du littoral. Plus de 50.000 hectares de terres furent inondées. Au total, la France compta 47 morts suite à la tempête, la plupart d’entre...
report 2010
document
Kolen, B. (author), Jonkman, S.N. (author), Ter Horst, W. (author), Terpstra, T. (author), Bouwer, L. (author), Loois, A. (author), Kanning, W. (author), De Jong, M. (author)
De Jonge Deltacommissie is een open en onafhankelijk netwerk dat bestaat uit alle jonge professionals die ideehebben ingezonden om Nederland waterveilig te houden. De Jonge Deltacommissie zal na het uitbrengen van het advies van de Deltacommissie een vervolg krijgen. De Jonge Deltacommissie wil dat Nederland de komende eeuwen goed beschermd is...
report 2008
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Terpstra, S. (author), Zbinden, S. (author), Knip, C. (author), Schunck, R. (author)
Dijken en duinen beschermen Nederland tegen overstroming vanuit de rivieren en de zee. Zeespiegelstijging en meer en extremere stormen als gevolg van de klimaatverandering noodzaken tot het treffen van aanvullende maatregelen. Nog meer bepalend is de achterstand in het beschermingsniveau tegen overstromingen door de toenemende omvang en...
report 2007
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Terpstra, V.J. (author)
doctoral thesis 1996
document
van der Voordt, D.J.M. (author), Terpstra, D. (author)
book 1995
document
Van Scherpenzeel, D.A. (author), Terpstra, I.R. (author)
Document(en) uit de collectie Chemische Procestechnologie.
report 1994
document
Van Scherpenzeel, D.A. (author), Terpstra, I.R. (author)
Document(en) uit de collectie Chemische Procestechnologie.
report 1994
document
Terpstra, A. (author)
In 1981/82 Fokker has developed an initial definition of the Attitude and Orbit Control and Measurement Subsystem for the Infrared Space Observatory (ISO), a scientific spacecraft project to be undertaken by ESA. This document reports on a limited NLR-study of a single-axis fine attitude control concept based on modern control theory. The...
report 1986
document
Terpstra, A.P. (author)
A brief overview of the capabilities of the Computer-Aided Control System Design (CACSD) package MATRIXx is given, and its use in practical designs for e.g. aerospace systems is discussed. This article is largely based on a comprehensive in-house evaluation of MATRIX by NLR.
report 1985
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Zwartbol, T. (author), Hameetman, G.J. (author), Slippens, C.P.R.C. (author), Terpstra, A.P. (author)
The paper describes algorithms for on-board commanding, estimation and control of the attitude of manoeuvring spacecraft using an on-board computer. Their performance is demonstrated in in-flight experiments with the Infra Red Astronomical Satellite. The following items are discussed: - on-board conmanding of the spacecraft attitude motion, - a...
report 1984
document
Terpstra, A.P. (author), Zwartbol, T. (author), Slippens, C.P.R.C. (author)
One of the research activities of the Space Division of the National Aerospace Laboratory NLR is the application of modern estimation and control theory to spacecraft attitude control problems. Algorithms for spacecraft state estimation and attitude control, as well as for inertial-optical attitude determination have been developed previously...
report 1984
document
Zwartbol, T. (author), Terpstra, A.P. (author)
The paper presents an approach to on-board commanding, estimation, and control of the attitude motion of manoeuvring spacecraft, based on modern control principles. Firstly the control algorithms are discussed. The control law is based on explicit model following. It comprises single-axis models of the spacecraft motion, which generate a target...
report 1983
document
Zwartbol, T. (author), Terpstra, A.P. (author), van Woerkom, P.T.L.M. (author), van den Dam, R.F. (author)
This document presents an approach to sampled data, on-board estimation and control of the attitude motion of manoeuvring spacecraft. Algorithms which are developed include: a - model following control of attitude manoeuvres b - estimation of spacecraft state (attitude, angular velocity, disturbance torque) c - optical-inertial attitude...
report 1982
document
Terpstra, A.P. (author), van den Dam, R.F. (author), van Woerkom, P.T.L.M. (author), Zwartbol, T. (author)
This document describes two computer programs developed during a study of the application of modern control techniques in the area of spacecraft attitude control. Theory and simulation results are described in part I of this report. In part II a general overview of the tasks of the simulation program is presented, and program design aspects are...
report 1982
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