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Soete, J. (author), Claes, S. (author), Claes, H. (author), Erthal, M.M. (author), Hamaekers, H. (author), de Boever, E. (author), Foubert, A. (author), Klitzsch, N. (author), Swennen, R. (author)Applying an integrated methodology, including petrography, Mercury Injection Capillary Pressure, laboratory Nuclear Magnetic Resonance and X‐ray Computed Tomography, on continental spring carbonate reservoir analogue samples is a prerequisite to understand plug scale porosity and permeability heterogeneities. Depending on the dominant pore type...article 2022
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de Boever, E. (author), Jaramillo-Vogel, D. (author), Bouvier, A.S. (author), Frank, N. (author), Schroder-Ritzrau, A. (author), Baumgarter, L. (author), Swennen, R. (author), Foubert, A. (author)Spring systems are efficient and fast precipitating non-marine carbonate factories, but they are also prone to (early) diagenesis. Evidence of diagenesis in travertines remains controversial as the resulting textures have been considered primary in other deposits and the impact on geochemical/palaeo-environmental signals is often poorly...article 2022
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Jin, J. (author), Pang, M. (author), Segers, A. (author), Han, W. (author), Fang, L. (author), Li, B. (author), Feng, H. (author), Lin, H.X. (author), Liao, H. (author)Last spring, super dust storms reappeared in East Asia after being absent for one and a half decades. The event caused enormous losses in both Mongolia and China. Accurate simulation of such super sandstorms is valuable for the quantification of health damage, aviation risks, and profound impacts on the Earth system, but also to reveal the...article 2022
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Fu, W. (author), Landman, H.M. (author), van Paassen, M.M. (author), Mulder, M. (author)We discuss an extension of the basic principles underlying the human haptic just noticeable difference (JND) in perceiving a manipulator's mechanical properties from force feedback. Two cases are studied: 1) the JND in perceiving the stiffness of manipulators with various masses; 2) the JND in perceiving the damping of a combined mass-spring...article 2018
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Page, M.A. (author), Zhao, C. (author), Blair, D.G. (author), Ju, L. (author), Ma, Y. (author), Pan, H.W. (author), Chao, S. (author), Mitrofanov, V.P. (author), Sadeghian Marnani, H. (author)Thermal noise generally greatly exceeds quantum noise in optomechanical devices unless the mechanical frequency is very high or the thermodynamic temperature is very low. This paper addresses the design concept for a novel optomechanical device capable of ultrahigh quality factors in the audio frequency band with negligible thermal noise. The...article 2016
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A primer on the use of cluster analysis or factor analysis to assess co-occurrence of risk behaviorsHofstetter, H. (author), Dusseldorp, E. (author), van Empelen, P. (author), Paulussen, T.W.G.M. (author)Objective: The aim of this paper is to provide a guideline to a universal understanding of the analysis of co-occurrence of risk behaviors. The use of cluster analysis and factor analysis was clarified. Method: A theoretical introduction to cluster analysis and factor analysis and examples from literature were provided. A representative sample ...article 2014
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Tuitman, J.T. (author), Malenica, Š. (author), van 't Veer, R. (author)The concept of "generalized modes" is to describe all degrees of freedom by mode shapes and not using any predefined shape, like rigid body modes. Generalized modes in seakeeping computations allow one to calculate the response of a single ship, springing, whipping, multibody interaction, etc., using a uniform approach. The generalized modes...conference paper 2013
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Bigot, F. (author), Derbanne, Q. (author), Sireta, F.X. (author), Malenica, S. (author), Tuitman, J.T. (author)It is nowadays well recognized that the hydroelastic ship response might be an important part of the overall ship structural response. We usually talk about two phenomena: namely springing and whipping, even if sometimes it is not trivial to distinguish between the two of them. Usually, springing is defined as a continuous resonant wave-induced...conference paper 2011
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Derbanne, Q. (author), Malenica, Š. (author), Tuitman, J.T. (author), Bigot, F. (author), Chen, X.B. (author), TNO Bouw en Ondergrond (author)Hydroelastic response of the ship can represent an important part of the overall structural response. This is true both for the extreme ship structural response as well as for the fatigue loads of some structural details. Several full scale monitoring campaigns on the container ships clearly show an important high frequency contribution coming...conference paper 2010
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Barth, J.A.C. (author), Grathwohl, P. (author), Fowler, H.J. (author), Bellin, A. (author), Gerzabek, M.H. (author), Lair, G.J. (author), Barceló, D. (author), Petrovic, M. (author), Navarro, A. (author), Négrel, P. (author), Petelet-Giraud, E. (author), Darmendrail, D. (author), Rijnaarts, H. (author), Langenhoff, A. (author), de Weert, J. (author), Slob, A. (author), van der Zaan, B.M. (author), Gerritse, J. (author), Frank, E. (author), Gutierrez, A. (author), Kretzschmar, R. (author), Gocht, T. (author), Steidle, D. (author), Garrido, F. (author), Jones, K.C. (author), Meijer, S. (author), Moeckel, C. (author), Marsman, A. (author), Klaver, G. (author), Vogel, T. (author), Bürger, C. (author), Kolditz, O. (author), Broers, H.P. (author), Baran, N. (author), Joziasse, J. (author), von Tümpling, W. (author), van Gaans, P. (author), Merly, C. (author), Chapman, A. (author), Brouyère, S. (author), Batlle Aguilar, J. (author), Orban, Ph. (author), Tas, N. (author), Smidt, H. (author), TNO Bouw en Ondergrond (author)AquaTerra is one of the first environmental projects within the 6th Framework program by the European Commission. It began in June 2004 with a multidisciplinary team of 45 partner organizations from 13 EU countries, Switzerland, Serbia, Romania and Montenegro. Results from sampling and modeling in 4 large river basins (Ebro, Danube, Elbe and...article 2009
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Penkett, S.A. (author), Burgess, R.A. (author), Coe, H. (author), Coll, I. (author), Hov, O. (author), Lindskog, A. (author), Schmidbauer, N. (author), Solberg, S. (author), Roemer, M. (author), Thijsse, T. (author), Beck, J. (author), Reeves, C.E. (author), TNO Bouw en Ondergrond (author)The nitrate radical (NO3) was first measured in the atmosphere in the 1970s and suggestions were made that it could play a major role in oxidising many unsaturated hydrocarbons, such as those emitted from the biosphere. Analysis of the hydrocarbon mix over the North Atlantic Ocean suggested subsequently that the influence of NO3 radical...article 2007
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Jongen, M.J.M. (author), Dijkman, A. (author), Zwanikken, S. (author), Zwetsloot, G.I.J.M. (author), Gort, J. (author), TNO Kwaliteit van Leven (author)Recent accidents in The Netherlands in different kinds of industries, like fire works storage, catering and energy industry, triggered the Dutch government to start a national program to enhance the enforcement of industrial safety at the regional and municipal level. Stimulated by this program the Province of Zeeland developed its own external...conference paper 2007
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TNO Defensie en Veiligheid (author), Versloot, N.H.A. (author), Klein, A.J.J. (author), de Maaijer, M. (author)On July 1, 2003 a transitional period has ended and two European directives became fully active: Directive 1999/92/EC and Directive 94/9/EC. These directives have an impact on both companies with an explosion hazard (gas, vapor, mist or dust explosions) and on manufacturers of equipment intended to be used in explosive atmospheres. The...conference paper 2007
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Spiertz, J.H.J. (author), Hamer, R.J. (author), Xu, H. (author), Primo-Martin, C. (author), Don, C. (author), van der Putten, P.E.L. (author), TNO Kwaliteit van Leven (author)Heat stress effects on grain dry mass and quality were studied in spring wheat genotypes (Triticum aestivum L.). Three cultivars were chosen with respect to heat tolerance: Lavett (genotype 1), selected for temperate growing conditions and two CIMMYT cultivars, Ciano-79 (genotype 2) and Attila (genotype 3), respectively heat sensitive and heat...article 2006
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Ham, J.M. (author), Meulenbrugge, J.J. (author), Versloot, N.H.A. (author), Dechy, N. (author), Lecoze, J.-C. (author), Salvi, O. (author), TNO Bouw en Ondergrond TNO Defensie en Veiligheid (author)The SEVESO II directive has created a common framework for the European state members for the implementation of risk management strategies that require the introduction of various dimensions ranging from technical to organisational ones. Local regulations in countries have however diverse histories and philosophies. Some regulations include the...conference paper 2006
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Boers, M.N. (author), Gort, J. (author), Versloot, N.H.A. (author), TNO Defensie en Veiligheid TNO Kwaliteit van Leven (author)Traditionally, in process industry risks are reduced by applying technical solutions and taking organisational measures. The performance of both types of 'solutions' depends on many factors and can not easily be compared. Especially the effectiveness of organisational measures such as the use of procedures, education, training and improving the...conference paper 2006
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TNO Bouw (author), Castenmiller, C.J.J. (author)Under influence of solar radiation the surface temperature of wooden window frames can reach values above 60 0C. High temperature can cause considerable tensions within the window frame; as a result joints can be cracked and rain water can penetrate into these joints. This penetration of rain water is often the start of considerable degradation...article 2004
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Mooi, H.G. (author), Huibers, J.H.A.M. (author), TNO Wegtransportmiddelen (author)A simple two-mass-spring model was developed to describe the dynamics of car-to-car collisions. The characteristics of the spring in this model can be chosen as a piecewise linear function. The model was applied to determine the dynamics of a range of crashes and to compare the dynamics of a car-to-car crash with the dynamics of crash tests....article 2000
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van de Vorst, E.L.B. (author), van Campen, D.H. (author), de Kraker, A. (author), Fey, R.H.B. (author), Metaalinstituut TNO (author)This paper deals with the experimental analysis of the long-term behaviour of periodically excited linear beams supported by a one-sided spring or an elastic stop. Numerical analysis of the beams showed subharmonic, quasi-periodic and chaotic behaviour. Furthermore, in the beam system with the one-sided spring three different routes leading to...article 1996
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van de Vorst, E.L.B. (author), Assinck, F.H. (author), de Kraker, A. (author), Fey, R.H.B. (author), van Campen, D.H. (author), TNO Wegtransportmiddelen TNO Bouw (author)This article deals with the experimental verification of the long-term behavior of a periodically excited linear beam supported by a one-sided spring. Numerical analysis of the beam showed subharmonic, quasi-periodic, and chaotic behavior. Further, three different routes leading to chaos were found. Because of the relative simplicity of the beam...article 1996