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Alferdinck, J.W.A.M. (author), TNO Technische Menskunde (author)
This article gives an overview of the parameters influencing the conspicuity of warning lights. In general, higher light intensities are more conspicuous. A flashing light is better than a continuous light. Flashing frequencies of about 10 Hz are perceived as unpleasant, and below 1 Hz the light has no warning character. Frequencies between 2...
article 1996
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Koornneef, G.P. (author), Cuelenaere, R.F.A. (author)
In 2050 moet het stadsverkeer in Nederland grotendeels elektrisch rijden. Bussen en vrachtwagens zullen rijden op vloeibaar gas, terwijl lucht- en scheepsverkeer meer gebruik zullen maken van biobrandstoffen, dat zijn de belangrijkste punten van de brandstofvisie, tot stand gekomen onder begeleiding vqan een kennisconsortium van TNO, CE Delft en...
article 2014
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Mahmod, M. (author), van Arem, B. (author), Pueboobpaphan, R. (author), de Lange, R. (author)
In many countries traffic emissions have significantly increased during the last two decades because of the increased number of vehicles. As such, traffic emissions have become the main source of air pollution in urban areas, where breaches of the EU limit values frequently occur. To reduce these emissions, local traffic measures can be...
article 2013
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TNO is an independent research organisation whose expertise and research make an important contribution to the competitiveness of companies and organisations, to the economy and to the quality of society as a whole. TNO’s unique position is attributable to its versatility and capacity to integrate this knowledge. Short article regarding the...
article 2011
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Vonk Noordegraaf, D. (author), Annema, J.A. (author), van Wee, B. (author)
The implementation of road pricing has been limited worldwide despite the notion that road pricing is generally considered to be a potentially effective measure to reduce externalities, in particular traffic congestion. By means of a content analysis of 106 scientific papers, this paper aims to identify and compare the detailed set of...
article 2014
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Wang, D.Y. (author), Yao, S. (author), Shost, M. (author), Yoo, J.H. (author), Cabush, D. (author), Racine, D. (author), Cloudt, R.P.M. (author), Willems, F.P.T. (author), TNO Industrie en Techniek (author)
Selective Catalytic Reduction (SCR) is the dominant solution for meeting future NOx reduction regulations for heavy-duty diesel powertrains. SCR systems benefit from closed-loop control if an appropriate exhaust gas sensor were available. An ammonia sensor has recently been developed for use as a feedback element in closed-loop control of urea...
article 2009
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Atli-Veltin, B. (author), Gandhi, F. (author)
The in-plane crushing and energy absorption of sandwiched honeycomb cores with facesheets are examined through finite element simulations. Assuming no debonding between the facesheet and honeycomb core (which would be the case if manufacturing techniques such as brazing are used to produce very strong bonds between the facesheeet and the core),...
article 2013
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Seykens, X.L.J. (author), Baert, R.S.G. (author), Somers, L.M.T. (author), Willems, F.P.T. (author), TNO Industrie en Techniek (author)
A computationally efficient engine model is developed based on an extended NO emission model and state-of-the-art soot model. The model predicts exhaust NO and soot emission for both conventional and advanced, high-EGR (up to 50%), heavy-duty DI diesel combustion. Modeling activities have aimed at limiting the computational effort while...
article 2009
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Zwier, E. (author), de Kievit, M. (author)
Nederland heeft een dicht en intensief gebruikt spoorwegnetwerk. Een kleine storing kan dan al genoeg zijn om het treinverkeer te ontregelen, met flinke vertragingen voor de reizigers als gevolg. Netwerkbeheerder prorail en TNO gaan samen op zoek naar innovaties en onorthodoxe ideeen die op het spoor de vaart erin moeten houden
article 2014
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Veenstra, A.W. (author)
article 2013
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de Cloe, D.J. (author)
Over een paar jaar kijken we niet meer op van een onbemand voertuig op de weg. Onderzoekers en fabrikanten zijn met de techniek voor het onbemand rijden al een eind gevorderd. Het is trouwens helemaal geen 'hocus-pocus
article 2014
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Zhang, M. (author), van den Driest, M. (author), Wiegmans, B. (author), Tavasszy, L. (author)
The paper analyses the impact of: 1) CO2 pricing; 2) using biodiesel on the multimodal freight transport system in and through the Netherlands taking the changes in the transport demands for road, rail, and inland waterway into account. Special attention is given to the impact on the market share of various barge classes in inland waterway...
article 2014
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van der Steen, R. (author), Lopez, I. (author), Nijmeijer, H. (author), Schmeitz, A.J.C. (author), de Bruijn, B. (author)
Throughout the tire industry, virtual testing has been widely adopted in the design process. Both static deformation and dynamic response of the tire rolling on the road must be accurately predicted to evaluate the handling performance of a tire. Unfortunately, experimental characterization of rubber compound frictional properties is limited,...
article 2011
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Kessels, J.T.B.A. (author), Foster, D.L. (author), Bleuanus, W.A.J. (author), TNO Industrie en Techniek (author)
The conversion efficiency of three way catalytic converters is mainly defined by the temperature range wherein they are operating. Traditionally, ignition retard has been used to reduce the light-off time of the catalyst. This is however associated with a fuel penalty. With increasing vehicle electrification, electrically heating facilities...
article 2010
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Smokers, R.T.M. (author)
Een groep van zo'n 150 stakeholders, onder regie van het Ministerie van IenM, werkt op dit moment aan een concrete invulling van de afspraken over mobiliteit in het Energieakkoord. Zo beschrijft Richard Smokers, adviseur duurzame mobiliteit bij TNO, de actualiteit rondom elektrisch rijden en de ontwikkeling van alternatieve brandstoffen en...
article 2014
document
Dieselmotoren van personen- en bestelauto’s blijken in de praktijk veel vuiler dan de norm voor stikstofoxiden. Euro 6-vrachtauto’s doen het echter juist heel goed. Maat overziet al iemand de gevolgen voor en door het overheidsbeleid?
article 2015
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Bakri, T. (author), Kuznetsov, Y.A. (author), Verhulst, F. (author), Doedel, E. (author)
nonlinear two-point boundary value problems (BVPs) may have none or more than one solution. For the singulary perturbed two-point BVP EU" +2u'+f(u)= 0,0 < x <1,u (0)= 0,u (1) = 0,a condition is given to have one and only one solution; also cases of more solutions have been analyzed. After attention to the form and validity of the corresponding...
article 2012
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Bayings, M.B. (author)
article 2012
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van Schijndel-de Nooij, M. (author)
Als iemand ir. Margriet van Schijndel vijf jaar geleden had verteld dat zij nu zou werken bij TNO Automotive, zou zij hem niet hebben geloofd. Nu werkt zij er met zeer veel plezier. ‘Het prettige van TNO is dat het een zeer brede organisatie is waarbinnen je zelf kunt ontdekken welk vakgebied of functie het best bij je past’. Van Schijndel is...
article 2010
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TNO Bouw en Ondergrond (author), Quak, H.J. (author)
article 2008
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