Searched for:
(1 - 17 of 17)
document
de Boer, J.G.G.M. (author), Hofmeyer, H. (author), Maljaars, J. (author), van Herpen, R.A.P. (author)
A self-supporting sandwich panel facade system under fire is studied. First, a thermomechanical FE model, which comprises the complete facade system, and incorporates material degradation and geometrical nonlinear behaviour except for the insulation material and connections, is loaded by a fire temperature curve. Eurocode design rules then...
article 2019
document
Sprung, D. (author), Sucher, E. (author), Grossmann, P. (author), Kociok, T. (author), van Eijk, A.M.J. (author), Stein, K. (author)
conference paper 2019
document
van Iersel, M. (author), Veerman, H.E.T. (author), Cohen, L.H. (author), Benoist, K.W. (author), van Binsbergen, S.A. (author), van Riggelen, F. (author), Peet, B.J.A. (author)
Most models that predict the infrared signature of an object are based on steady-state equilibrium conditions and do not model the dynamic nature of the real world. To gain more understanding of the dynamic infrared signatures of an object, several outdoor experiments were performed, using a CUBI and a small vessel as an object. Dynamic changes...
conference paper 2016
document
Lee, Y. (author), Lee, J. (author), Kim, S. (author), Park, H.S. (author)
We investigated high charge density of states (DOS) in the bandgap of MoS2 nanosheets with variable temperature measurements on ionic liquid-gated MoS2 transistors. The thermally activated charge transport indicates that the electrical current in the two-dimensional MoS 2 nanosheets under high charge density state follows the Meyer-Neldel rule....
article 2014
document
Kastelein, J. (author), van der Vossen, J.M.B.M. (author)
Kimguard One-Step sterilisation wrap has regulatory approval as a Class I medical device suitable for packaging terminally sterilised medical items. In this study, we evaluated the performance of five different grades of Kimguard One-Step sterilisation wrap after prion sterilisation cycle (134 °C for 18 minutes) using the final pack test method....
article 2013
document
Timmermans, R.M.A. (author), Segers, A.J. (author), Builtjes, P.J.H. (author), Vautard, R. (author), Siddans, R. (author), Elbern, H. (author), Tjemkes, S.A.T. (author), Schaap, M. (author), TNO Bouw en Ondergrond (author)
Monitoring aerosols over wide areas is important for the assessment of the population's exposure to health relevant particulate matter (PM). Satellite observations of aerosol optical depth (AOD) can contribute to the improvement of highly needed analyzed and forecasted distributions of PM when combined with a model and ground-based observations....
article 2009
document
Leskens, M. (author), de Kruif, B. (author), Belfroid, S.P.C. (author), Smeulers, J.P.M. (author), Gryzlov, A. (author), TNO Industrie en Techniek (author)
Multiphase flow meters are indispensable tools for achieving optimal operation and control of wells as these meters deliver real-time information about their performance. For example, multiphase flow meters located downhole can improve the production of multilateral and multizone wells by timely allocating the zone where a gas or water cone...
conference paper 2008
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de Kruif, B.J. (author), Leskens, M. (author), van der Linden, R. (author), Alberts, G.J.N. (author), TNO Industrie en Techniek (author)
Real-time monitoring of downhole oil, gas and water flows in wells can significantly improve the production performance of these wells when this flow rate information is used to manipulate inflow control valves. An example of this is the allocation of a gas or water cone to its entrance point in a multilateral well, allowing to close down the...
conference paper 2008
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Heiri, O. (author), Cremer, H. (author), Engels, S. (author), Hoek, W.Z. (author), Peeters, W. (author), Lotter, A.F. (author), TNO Bouw en Ondergrond (author)
Lateglacial environments at Hijkermeer, northwest Netherlands, were reconstructed by means of chironomid, diatom and pollen analyses. Diatom assemblages indicate that Hijkermeer was a shallow, oligo- to mesotrophic lake during this period. Pollen assemblages reflect the typical northwest European Lateglacial vegetation development and provide an...
article 2007
document
TNO Defensie en Veiligheid (author), de Jong, A.N. (author), Fritz, P.J. (author)
Optical refraction tends to occur frequently in the atmospheric boundary layer. Due to a gradient in the temperature as function of height, rays are bending down towards the earth (super-refraction), or up towards to the sky (sub-refraction). As a consequence, images of targets at long range may be distorted and mirages may occur, while the...
conference paper 2007
document
Frölke, J.P.M. (author), Reeling Brouwer, G.C. (author), Giannoudis, P.V. (author)
article 2004
document
Energieonderzoek Centrum Nederland (author), Koene, F.G.H. (author), Ligthart, F.A.T.M. (author)
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report 2000
document
Bijl, P. (author), Valeton, J.M. (author)
MRTD (Minimum Resolvable Temperature Difference) The characterization of electro-optical system performance by means of the standard minimum resolvable temperature difference (MRTD) or the minimum resolvable contrast (MRC) has a number of serious disadvantages. One of the problems is that they depend on the subjective decision criterion of the...
article 1999
document
Fierro, V. (author), Miranda, J.L. (author), Romero, C. (author), Andrés, J.M. (author), Arriaga, A. (author), Schmal, D. (author), Visser, G.H. (author), TNO Milieu, Energie en Procesinnovatie (author)
The spontaneous ignition of coal stockpiles is a serious economic and safety problem. This paper deals with oxidation and spontaneous combustion of coal piles laid in coal storage yard and the measures to avoid the heat losses produced. Investigations on self heating were carried out with five test piles (2000-3000 tons) built at the ENDESA...
article 1999
document
Maassen van den Brink, A. (author), Dekker, H. (author), TNO Fysisch en Elektronisch Laboratorium (author)
The calculation of the Kapitza boundary resistance between dissimilar harmonic solids has since long (Little [Can. J. Phys. 37 (1959) 334]) suffered from a paradox: this resistance erroneously tends to a finite value in the limit of identical solids. We resolve this paradox by calculating temperature differences in the final heat-transporting...
article 1996
document
Maassen van den Brink, A. (author), Dekker, H. (author), TNO Fysisch en Elektronisch Laboratorium (author)
A calculation of the Kapitza boundary resistance between harmonic solids has been noted previously (Little, Can. J. Phys. 37 (1959) 334; Leung and Young, Phys. Rev. B 36 (1987) 4973) to lead to apparently paradoxical results in the limit of identical solids: instead of vanishing, the resistance tends to a finite limit. We resolve this paradox by...
article 1996
document
Jacobs, P.A. (author), TNO Fysisch en Elektronisch Laboratorium (author)
The detectability of a target in the infrared spectral region is determined by differences between the radiative signatures of the target and the local background. This implies that both, the difference in surface temperature and emissivity ΔT resp. Δε and the distribution of these differences over the target area and the background, are of...
conference paper 1995
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