Searched for: subject:"Barriers"
(81 - 100 of 113)

Pages

document
van den Berg, F. (author), van der Eerden, F.J.M. (author), TNO Industry and Science, Acoustics Department, Stieltjesweg 1, 2628 CK Delft, Netherlands (author)
Large weapons, such as armor, artillery or demolitions, create a high-energy blast wave. It has a low frequency content, typically between 15 and 125 Hz, and can propagate over large distances. As a result it is a relative important cause for annoyance. Mitigation measures need to be close to the source for best effectiveness, but due to the...
conference paper 2007
document
Buist, H.E. (author), de Heer, C. (author), van Burgsteden, J.A. (author), van de Sandt, J.J.M. (author), TNO Kwaliteit van Leven (author)
The in vitro dermal absorption kinetics of didecyldimethylammonium chloride (DDAC) was studied after single and multiple exposure. In addition, the influence of biocidal formulations on the absorption of DDAC was investigated. Following dermal exposure to DDAC in aqueous solution, less than 0.5% of the applied dose reached the receptor fluid...
article 2007
document
TNO Defensie en Veiligheid (author), Marino, E. (author), Huijser, T. (author), Creyghton, Y.L.M. (author), van der Heijden, A.E.D.M. (author)
Metals and metal oxides are well-known catalysts in many applications. TNO investigates metal and metal oxide nanoparticles as catalysts in rocket and gun propellants. Using nanosize particles allows to tune the curing, mechanical or ballistic properties of the propellant, but to avoid undesired chemical side-reactions a coating of these...
conference paper 2007
document
Dole, P. (author), Feigenbaum, A.E. (author), de la Cruz, C. (author), Pastorelli, S. (author), Paseiro, P. (author), Hankemeier, T. (author), Voulzatis, Y. (author), Aucejo, S. (author), Saillard, P. (author), Papaspyrides, C. (author), TNO Kwaliteit van Leven (author)
When plastics are collected for recycling, possibly contaminated articles might be recycled into food packaging, and thus the contaminants might subsequently migrate into the food. Multilayer functional barriers may be used to delay and to reduce such migration. The contribution of the work reported here is to establish reference values (at 40°C...
article 2006
document
van Heteren, S. (author), Oost, A.P. (author), van der Spek, A.J.F. (author), Elias, E.P.L. (author), TNO Bouw en Ondergrond (author)
Historical maps of southwest Texel and the adjacent ebb-tidal delta, supplemented with quartz OSL (Optically Stimulated Luminescence) ages of dune sand, span four centuries and show several links between coastal development and ebb-tidal-delta behavior. Updrift inlet migration governed recurved-spit formation, and changes in ebb-tidal-delta size...
article 2006
document
Dittrich, M.G. (author), van Beek, P.J.G. (author), TNO Industrie en Techniek (author)
Road traffic noise is one of the major environmental noise sources that is known to cause health problems. Despite existing noise reception items, the continuing growth of traffic causes higher levels than the lims allow. Consequently, excessive costs are incurred for noise barriers along roads and motorways. It's therefore essential to...
conference paper 2006
document
Dole, P. (author), Voulzatis, Y. (author), Vitrac, O. (author), Reynier, A. (author), Hankemeier, T. (author), Aucejo, S. (author), Feigenbaum, A. (author), TNO Kwaliteit van Leven (author)
Functional barriers form parts of multi-layer packaging materials, which are deemed to protect the food from migration of a broad range of contaminants, e.g. those associated with reused packaging. Often, neither the presence nor the identity of the contaminants is known, so that safety assessment of the materials has to rely on predictive tools...
article 2006
document
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
document
Buist, H.E. (author), van de Sandt, J.J.M. (author), van Burgsteden, J.A. (author), de Heer, C. (author), TNO Kwaliteit van Leven (author)
The dermal route of exposure is important in worker exposure to biocidal products. Many biocidal active substances which are used on a daily basis may decrease the barrier function of the skin to a larger extent than current risk assessment practice addresses, due to possible skin effects of repeated exposure. The influence of repeated and...
article 2005
document
Feigenbaum, A. (author), Dole, P. (author), Aucejo, S. (author), Dainelli, D. (author), de la Cruz Garcia, C. (author), Hankemeier, T. (author), N'Gono, Y. (author), Papaspyrides, C.D. (author), Paseiro, P. (author), Pastorelli, S. (author), Pavlidou, S. (author), Pennarun, P.Y. (author), Saillard, P. (author), Vidal, L. (author), Vitrac, O. (author), Voulzatis, Y. (author), TNO Kwaliteit van Leven (author)
Functional barriers are multilayer structures deemed to prevent migration of some chemicals released by food-contact materials into food. In the area of plastics packaging, different migration behaviours of mono- and multilayer structures are assessed in terms of lag time and of their influence of the solubility of the migrants in food simulants...
article 2005
document
Pries, F. (author), Vrijhoef, R. (author)
The construction industry appears to have serious problems to innovate effectively and incorporate innovative knowledge into firms’ businesses, despite the innovation potential and capacities of the industry. In the last decades several initiatives have been taken and many approaches have been proposed to increase the innovation level of the...
conference paper 2004
document
Ballarini, M. (author), Wallinga, J. (author), Murray, A.S. (author), van Heteren, S. (author), Oost, A.P. (author), Bos, A.J.J. (author), van Eijk, C.W.E. (author), Nederlands Instituut voor Toegepaste Geowetenschappen TNO (author)
We explore the use of quartz optically stimulated luminescence (OSL) dating for reconstructing coastal evolution on a time scale of decades to a few hundred years. Samples are taken from the accretionary south-west coast of Texel, a barrier island just offshore of the northern Netherlands. The ages of dune ridges are known from historical...
article 2003
document
van Ratingen, M.R. (author), Roberts, A.K. (author), TNO Wegtransportmiddelen (author)
conference paper 2003
document
Ponec, M. (author), Gibbs, S. (author), Pilgram, G. (author), Boelsma, E. (author), Koerten, H. (author), Bouwstra, J. (author), Mommaas, M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
One of the prerequisites for the use of human skin equivalents for scientific and screening purposes is that their barrier function is similar to that of native skin. Using human epidermis reconstructed on de-epidermized dermis we demonstrated that the formation of the stratum corneum (SC) barrier in vitro proceeds similarly as in vivo as judged...
article 2001
document
Magos, L. (author), TNO BIBRA International Ltd, Woodmansterne Rd, Carshalton, Surrey SM5 4DS, United Kingdom Centraal Instituut voor Voedingsonderzoek TNO TNO Voeding (author)
Chemicals/CAS: Biological Products; Ethylmercury Compounds; Food Additives; Pharmaceutical Preparations; Preservatives, Pharmaceutical; Thimerosal, 54-64-8
article 2001
document
Huibers, J. (author), de Beer, E. (author), TNO Wegtransportmiddelen (author)
EuroNCAP tests are carried out since 1997. The test procedure in general is comparable to the EC Directive 96/79 with a test speed of 64 km/h. This increased test speed implies a higher frontal stiffness for new vehicle designs in order to achieve a high ranking. This frontal stiffness is one of the major factors for compatibility in car to car...
conference paper 2001
document
Ponec, M. (author), Gibbs, S. (author), GPilgram, G. (author), BoeIsma, E. (author), Koerten, H. (author), Bouwstra, J. (author), Mommaas, M. (author), TNO Voeding (author)
One of the prerequisitesforthe use of human skin equivalents for scientific and screening purposes is that their barrierfunction is similar to that of native skin. Using human epidermis reconstructed en de-epidermized dermis we demonstrated that the formation of the stratum corneum (SC) barrier in vitro proceeds similarly as in vivo as judged...
article 2001
document
Centraal Instituut voor Voedingsonderzoek TNO (author), Spreeuwenberg, M.A.M. (author), Verdonk, J.M.A.J. (author), Gaskins, H.R. (author), Verstegen, M.W.A. (author)
Compromising alterations in gastrointestinal architecture are common during the weaning transition of pigs. The relation between villous atrophy and epithelial barrier function at weaning is not well understood. This study evaluated in vitro transepithelial transport by Ussing metabolic chambers, local alterations in T-cell subsets and villous...
article 2001
document
Mugnai, A. (author), Burke, G. (author), TNO Wegtransportmiddelen TNO-MADYMO North America DaimlerChrysler Corp. (author)
In 1996, the European Community released new regulations relating to frontal impact vehicle crash. One of the tests, the European offset crash, consists of crashing the car on a deformable barrier at 56 km/h with 40% of the car impacting on the barrier. The regulations require the dummy injury parameters such as the HIC, chest deflection, chest...
conference paper 2000
document
Bajramović, J.J. (author), Plomp, A.C. (author), van der Goes, A. (author), Koevoets, C. (author), Newcombe, J. (author), Cuzner, M.L. (author), van Noort, J.M. (author)
In the development of multiple sclerosis (MS), (re)activation of infiltrating T cells by myelin-derived Ags is considered to be a crucial step. Previously, αB-crystallin has been shown to be an important myelin Ag to human T cells. Since αB-crystallin is an intracellular heat shock protein, the question arises at what stage, if any, during...
article 2000
Searched for: subject:"Barriers"
(81 - 100 of 113)

Pages