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Li, X. (author), Smaal, W.T.T. (author), Kjellander, C. (author), van der Putten, B. (author), Gualandris, K. (author), Smits, E.C.P. (author), Anthony, J. (author), Broer, D.J. (author), Blom, P.W.M. (author), Genoe, J. (author), Gelinck, G.H. (author)We present a systematic study of the influence of material composition and ink-jet processing conditions on the charge transport in bottom-gate field-effect transistors based on blends of 6,13-bis(triisopropyl-silylethynyl) pentacene (TIPS-PEN) and polystyrene. After careful process optimizations of blending ratio and printing temperature we...article 2011
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Berendrecht, W.L. (author), Heemink, A.W. (author), van Geer, F.C. (author), Gehrels, J.C. (author), TNO Bouw en Ondergrond (author)A non-linear state space model is developed for describing groundwater fluctuations. Non-linearity is introduced by modeling the (unobserved) degree of water saturation of the root zone. The non-linear relations are based on physical concepts describing the dependence of both the actual evapotranspiration and the percolation rate on the degree...article 2006
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Wierenga, P.A. (author), Meinders, M.B.J. (author), Egmond, M.R. (author), Voragen, A.G.J. (author), de Jongh, H.H.J. (author), TNO Kwaliteit van Leven (author)In this study a set of chemically engineered variants of ovalbumin was produced to study the effects of electrostatic charge on the adsorption kinetics and resulting surface pressure at the air-water interface. The modification itself was based on the coupling of succinic anhydride to lysine residues on the protein surface. After purification of...article 2005
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Wieringa, F.P. (author), Mastik, F. (author), van der Steen, A.F.W. (author), TNO Kwaliteit van Leven (author)We describe a route toward contactless imaging of arterial oxygen saturation (SpO2) distribution within tissue, based upon detection of a two-dimensional matrix of spatially resolved optical plethysmographic signals at different wavelengths. As a first step toward SpO 2-imaging we built a monochrome CMOS-camera with apochromatic lens and 3λ-LED...article 2005
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Wipfler, E.L. (author), van Dijke, M.I.J. (author), van der Zee, S.E.A.T.M. (author)We considered dense nonaqueous phase liquid (DNAPL) infiltration into a water-unsaturated porous medium that consists of two horizontal layers, of which the top layer has a lower intrinsic permeability than the bottom layer. DNAPL is the intermediate-wetting fluid with respect to the wetting water and the nonwetting air. The layer interface...article 2004