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TNO Fysisch en Elektronisch Laboratorium (author), Schutte, K. (author), de Lange, D.J. (author), van den Broek, S.P. (author)In tactical sensor imagery there always is a need for less noise, higher dynamic range and more resolution. Although recent developments lead to better and better Focal Plane Array (FPA) camera systems, modern infrared FPA camera system are still hindered by non-uniformities, a limited signal-to-noise ratio and a limited spatial resolution. The...conference paper 2003
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ID-TNO, Animal Nutrition (author), Rodrigues, M.A.M. (author), Cone, J.W. (author), van Gelder, A.H. (author), Sequeira, J.C. (author), Fonseca, A.M. (author), Ferreira, L.M.M. (author), Sequeira, C.A. (author)The effect of cellulose crystallinity on in vitro digestibility (IVD) and fermentation kinetics was investigated in samples of meadow hay and barley, wheat and rice straws. A saturated solution of potassium permanganate was used to isolate the celluloses, and their crystallinity was evaluated in a Fourier transform infrared spectrometer as the...article 2003
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Lenssen, K.M.H. (author), Kuiper, A.E.T. (author), Roozeboom, F. (author), TNO Industrie (author)A robust Giant Magneto Resistive effect type multilayer sensor comprising a free and a pinned ferromagnetic layer, which can withstand high temperatures and strong magnetic fields as required in automotive applications. The GMR multi-layer has an asymmetric magneto-resistive curve and enables sensors with complementary output signals so that a...patent 2002
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Jimenez Pique, E. (author), Dortmans, L.J.M.G. (author), de With, G. (author), Technisch Physische Dienst TNO - TH (author)Fracture tests were performed on a granular polymethyl methacrylate porous material used as a mould for white were castings. Two types of sample geometry (single-edge notch beam and wedge opening load) and two types of environment (dry at room temperature and in water at 45°C) were used and the force-displacement curves were measured. The...article 2002
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Verburg, D.J. (author), van der Knaap, A.C.M. (author), Ploeg, J. (author), TNO Wegtransportmiddelen (author)The application of driver support systems and automated (intelligent) transport systems is getting increasingly important because they have the potential to enhance the efficiency and safety of today’s road transport without expanding the traffic infrastructure considerably. The high safety and reliability demands of these complex systems make...conference paper 2002
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Focardi, P. (author), Neto, A. (author), McGrath, W.R. (author)Series-fed coplanar-waveguide embedding circuits have been recently developed for terahertz mixers using, in particular, superconducting devices as sensors. Although these mixers show promising performance, they usually also show a considerable downward shift in the resonating frequency when compared with calculations using simplified models....article 2002
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Steeghs, P. (author), Kester, L. (author), Gelsema, S. (author)The use of the Radon transform and the Wigner-Radon power spectrum for ISAR motion compensation is described. It is shown that the local Radon power spectrum is closely related to the Cohen's class of quadratic time-frequency representations in a similar way as the Radon and Fourier transform are related. The peak of the local Radon transform is...conference paper 2002
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van Heijningen, M. (author), Badaroglu, M. (author), Donnay, S. (author), Gielen, G.G.E. (author), de Man, H.J. (author)More and more system-on-chip designs require the integration of analog circuits on large digital chips and will therefore suffer from substrate noise coupling. To investigate the impact of substrate noise on analog circuits, information is needed about digital substrate noise generation. In this paper, a recently proposed simulation methodology...article 2002
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Campestrini, P. (author), van Westing, E.P.M. (author), Hovestad, A. (author), de Wit, J.H.W. (author), TNO Industrie (author)The parameters of the chromate bath, like temperature, pH, and fluoride content, strongly affect the morphology and chemical composition of the chromate conversion coating and as a consequence have a large influence on its corrosion performance. In this paper, electrochemical impedance spectroscopy (EIS) was used in combination with other...article 2002
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Dortmans, L.J.M.G. (author), Fischer, H.R. (author), Nelissen, R. (author), Technisch Physische Dienst TNO - TH (author)The lifetime of porous polymer moulds used for pressure casting of sanitaryware has been analysed, modelled and improved. The mechanical behaviour of the existing porous PMMA mould material was analysed using mechanical tests to assess the lifetime under cyclic loading. The relevant stress levels were obtained through in-situ strain gauge...article 2002
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Huebner, J.L. (author), Hanes, M.A. (author), Beekman, B. (author), TeKoppele, J.M. (author), Kraus, V.B. (author), Gaubius Instituut (author)Objective: To evaluate the interaction of bone and cartilage in knee osteoarthritis (OA) pathogenesis in two guinea-pig strains with appreciable differences in bone metabolism. Design: Two guinea-pig strains were evaluated for their susceptibilities to OA using semi-quantitative histological grading of knee joints and quantification of...article 2002
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Cremer, F. (author), de Jong, W. (author), Schutte, K. (author), Johnson, J.T. (author), Baertlein, B.A. (author)A specular model has been used to predict the passive polarimetric infrared (IR) signature of surface-laid landmines. The signature depends on the temperature of the landmine and the sky radiance. The temperature of the landmine is measured using a thermocouple. The signature itself is measured using a polarimetric IR camera setup. The...conference paper 2002
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TNO Technische Menskunde (author), Schaafstal, A.M. (author)The question how the training of beginning technicians can be improved was the starting point of this study. The method Structured Troubleshooting is presented that has resulted in more practice-oriented and job-oriented training. The method has been systematically evaluated. The results show that technicians trained in Structured Trou...conference paper 2002
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van Dijk, E. (author), Ferreira, J.A. (author), van Gelder, P. (author)The layout of a capacitor bank with clamping diodes is investigated based on an experimental 5.5-kJ energy storage unit for pulsed power applications. While the current sharing between parallel-connected capacitors is good, it is not the case with parallel-connected clamping diodes. Despite a very-low-inductance busbar and attention to...article 2002
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TNO Industrie en Techniek (author), Brunner, K. (author), van Haare, J.A.E.H. (author), Langeveld-Voss, B.M.W. (author), Schoo, H.F.M. (author), Hofstraat, J.W. (author), van Dijken, A. (author)The mechanism of excitation energy transfer is studied using host-guest systems consisting of green and yellow emitting poly(phenylene vinylene) (PPV) based polymers into which red emitting dyes are dispersed. The photoluminescence from such polymer-dye systems is studied in the steady-state and time resolved. Furthermore, the...article 2002
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Colin, M.E.G.D. (author), Groen, J. (author)An important issue in research on passive ASW operations is improvement in signal-to-noise ratio (SNR) and bearing resolution for targets emitting low frequency signals. One of the techniques believed to improve these characteristics is Synthetic Aperture Sonar (SAS). The method is based on the artificial enlargement of a sonar array by...conference paper 2002
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Messelink, W.A.C.M. (author), Schutte, K. (author), Vossepoel, A.M. (author), Cremer, F. (author), Schavemaker, J.G.M. (author), den Breejen, E. (author)High detection performance is required for an operational system for the detection of landmines. Humanitarian de-mining scenarios, combined with inherent difficulties of detecting landmines on an operational (vibration, motion, atmosphere) as well as a scenario level (clutter, soil type, terrain), result in high levels of false alarms for most...conference paper 2002
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Robles-Gonzalez, C. (author), Leeuw, G.de (author), Decae, R. (author), Kusmierczyk-Michulec, J. (author)A new algorithm to retrieve aerosol optical depth with Along Track Scanning Radiometer (ATSR) data was presented. The generalization of algorithms for application over some areas is reported. An automated cloud detection scheme was included in the algorithms in order to generalize them. Inclusion of other aerosol types was also carried out.conference paper 2002
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TNO Preventie en Gezondheid (author), Dumay, A.C.M. (author), Freriks, G. (author)A standard is a set of agreements between all parties involved. Delivering healthcare is a matter of co-operation: healthcare can only be delivered in a responsible fashion when parties involved comply to standards. This becomes evident when a healthcare information infrastmcture is under development. The authors dehver a comprehensive...conference paper 2002
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Smit, E. (author), Oling, F. (author), Demel, R. (author), Martinez, B. (author), Pouwels, P.H. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Lactobacillus acidophilus, like many other bacteria, harbors a surface layer consisting of a protein (SA-protein) of 43 kDa. SA-protein could be readily extracted and crystallized in vitro into large crystalline patches on lipid monolayers with a net negative charge but not on lipids with a net neutral charge. Reconstruction of the S-layer from...article 2001