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Broekmans, M.A.T.M. (author), Nijland, T.G. (author), Jansen, J.B.H. (author), TNO Bouw (author)River gravel used as aggregate for concrete in the Netherlands contains several potentially deleterious components with respect to alkali-silica reaction (ASR), viz. porous chert, chalcedony, and impure sandstones (greywackes. mica- and sericite-rich sandstones, siltstones, arkoses etc.). Whereas cherts and chalcedonies are virtually free from...conference paper 2001
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Palamas, S. (author), Kalivas, D. (author), Panou-Diamandi, O. (author), Zeelenberg, C. (author), van Nimwegen, C. (author)Background: The MEDICOM (Medical Products Electronic Commerce) Portal provides the electronic means for medical-equipment manufacturers to communicate online with their customers while supporting the Purchasing Process and Post Market Surveillance. The Portal offers a powerful Internet-based search tool for finding medical products and...article 2001
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Prins Maurits Laboratorium TNO (author), Evenblij, B.H. (author), Ferreira, J.A. (author)In switching Power Electronics circuits inductive parasitics of wiring and components contribute substantially to the current and voltage waveforms. This article addresses the theoretical basis as well as the implementation and validation of the incorporation of these inductances in a computerised circuit simulation. The program presented in...conference paper 2001
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van der Bijl, R.J.M. (author), Fähnle, O.W. (author), van Brug, H. (author), Braat, J.J.M. (author), Technisch Physische Dienst TNO - TH (author)A new method, iTIRM, is used for quantitative surface roughness measurements of ground and polished surfaces and it is shown to be a useful tool for measuring total surface quality instead of individual roughness parameters.conference paper 2000
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Löffler, J. (author), Schropp, R.E.I. (author), Groenen, Ft. (author), Van De Sanden, M.C.M. (author), Linden, J.L. (author), Technisch Physische Dienst TNO - TH (author)Natively textured ZnO layers for the application as front electrode material in amorphous silicon pin solar cells have been deposited by Expanding Thermal Plasma Chemical Vapor Deposition. Films deposited in the temperature regime from 150 to 350°C at a rate between 0.65 and 0.75 nm/s have been characterteed with respect to their optical,...conference paper 2000
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den Broeder, F.J.A. (author), Hanzen, R.M.N. (author), Duine, P.A. (author), Jungblut, R.M. (author), Draijer, C. (author), Roozeboom, F. (author), van der Sluis, P. (author)A description is given of an optical switching device (1) comprising a transparent substrate (3), a switching film (5) of a hydride compound of a trivalent transition or rare earth metal having a thickness of 300 nm, and a palladium capping layer (7) having a thickness of 30 nm. The capping layer is in contact with hydrogen. An electric current...patent 2000
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Hoedemaeker, M. (author), Bastiaensen, E.G.H.J. (author), Zwaneveld, P.J. (author), TNO Human Factors, Soesterberg, Netherlands (author)This paper describes the set-up of a AVG knowledge database from the AVV Transport Research Centre from the Dutch Ministry of Transport, Public Works and Water Management. The database provides a categorised overview of all research performed in The Netherlands in the area of Automatic Vehicle Guidance (AVG). Two analyses are performed on the...conference paper 2000
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Müller, W.H. (author), Koster, A.J. (author), Humbel, B.M. (author), Ziese, U. (author), Verkleij, A.J. (author), van Aelst, A.C. (author), van der Krift, T.P. (author), Montijn, R.C. (author), Boekhout, T. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Dolipore septa and septal pore caps (SPCs) in filamentous basidiomycetes may play an important role in maintaining the integrity of hypal cells. We have investigated the ultrastructure of the dolipore septum and the SPC in Rhizoctonia solani hyphal cells after high-pressure freezing, freeze substitution, and Spurr embedding. We visualized the...article 2000
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van Brug, H. (author), Booij, S.M. (author), Fähnle, O.W. (author), van der Bijl, R.J.M. (author), Technisch Physische Dienst TNO - TH (author)The use of a Nomarski microscope for the characterization of surface features will be presented. Since a Nomarski microscope measures slope values, the shape of a surface can be followed quantitatively. Besides, a Nomarski microscope can be used to analyze surface roughness in terms of rms value and a distinction between different types of...conference paper 2000
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Roozeboom, F. (author), Duine, P.A. (author), van der Sluis, P. (author)A furnace (1) for Rapid Thermal Processing of a wafer (7), characterized in that the wafer (7) is heated by lamps (9), and the heat radiation is reflected by an optical switching device (15,17) which is in the reflecting state during the heating stage. During the cooling stage of the wafer (7), the heat is absorbed by the switching device (15,17...patent 2000
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Lepelaars, E.S.A.M. (author)In this paper, we investigate the feasibility of detecting defects in certain artificial heart valves by determining the electromagnetic behavior of some simple models with the aid of thin-wire integral equations. The idea is to use the stationary current that occurs at late times after the excitation of a closed loop as a discriminator. This...article 2000
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TNO Industrie en Techniek (author), Schoo, H.F.M. (author), van Breemen, A.J.J.M. (author), Langeveld-Voss, B.M.W. (author), Haare. J.A.E.H. van, (author), Herwig, P. (author)Organic semiconducting materials are now being investigated as active materials in light emitting diodes, photovoltaic cells, plastic electronics, etc. Important issues concerning the materials common to all areas, are processability, purity, reproducibility, stability and control over morphology. Big improvement in device fabrication, initial...article 2000
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Energieonderzoek Centrum Nederland (author), Boerrigter, H. (author)The bromine industry wants to process plastic Waste from Electrical andElectronic Equipment (WEEE), containing brominated flame retardants (BFRs), to recycle bromine, antimony, and other valuable metals, with energy recovery for sustainable production and closing the bromine loop at the End-of-Life. The motivation to perform the underlying study...report 2000
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Energieonderzoek Centrum Nederland (author), Eikelboom, J.A. (author), Jansen, M.J. (author)PV modules of nine different types were tested during indoor and outdoormeasurements. The electronic and thermal properties of the modules were determined and in simulations the energy yield of these modules under typical Dutch meteorological circumstances was calculated. 2 refs.report 2000
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Schmal, D. (author), Saakes, M. (author), ter Veen, W.R. (author), Raadschelders, J.W. (author), ten Have, P.T.J.H. (author), TNO Milieu, Energie en Procesinnovatie (author)In hybrid electric vehicles (HEV) the requirements on batteries are very different from those for battery electric vehicles (BEV). A high power (bipolar) lead-acid battery could be a good alternative for other types of batteries under development for this application. It is potentially cheap and there is an established recycling infrastructure....conference paper 2000
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Pinelli, E. (author), Gebhard, D. (author), Mommaas, A.M. (author), van Hoeij, M. (author), Langermans, J.A.M. (author), Ruitenberg, E.J. (author), Rutten, V.P.M.G. (author)We have previously shown that resistance to Leishmania infantum in dogs is associated with a Th1 type of immune response. In this study, we use a canine macrophage cell line (030-D) that can readily be infected with this protozoan parasite. Our aim is to further characterize the effector mechanisms involved in killing of Leishmania parasite in...article 2000
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- van Dijk, R. (author), Bregman, J.D. (author), Roodnat, A. (author), van Vliet, F.E. (author) conference paper 2000
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van den Berg, S.A. (author), van Schoonderwoerd-den Bezemer, R.H. (author), Schoo, H.F.M. (author), t' Hooft, G.W. (author), Eliel, E.R. (author), TNO Industrie (author)We present an experimental study of the input-output characteristics of an ultrashort pumped π-conjugated polymer in solution. By comparing the results for configurations with zero, one, and two mirrors around the polymer, we show that the physics is driven by amplified spontaneous emission and not by cooperative emission. This finding is...article 1999
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Román, C. (author), Fischer, H.R. (author), Meijer, E.W. (author), Technisch Physische Dienst TNO - TH (author)Diblock copolymers consisting of polystyrene and acid-functionalized poly(propylene imine) dendrimers have been found to self-assemble spontaneously into regular microdomains. The hybride dendrimer-linear chain block copolymers yield highly asymmetric molecules which display an aggregation behavior at the strong segregation limit that differs...article 1999
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Gregorkiewicz, T. (author), Thao, D.T.X. (author), Tsimperidis, I. (author), Bekman, H.H.P.T. (author), Langerak, C.J.G.M. (author), Michel, J. (author), Kimerling, L.C. (author), TNO Fysisch en Elektronisch Laboratorium (author)We investigate the influence of infrared illumination using a free-electron laser on the photoluminescence of erbium-implanted silicon material. In addition to the earlier reported quenching of the Er-related photoluminescence due to dissociation of the intermediate excitation stage, two more features of the energy transfer mechanism are...article 1999