Searched for: subject%3A%22Quartz%22
(1 - 14 of 14)
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van Deurssen, E. (author), Meijster, T. (author), Oude Hengel, K.M. (author), Boessen, R. (author), Spaan, S. (author), Tielemans, E. (author), Heederik, D. (author), Pronk, A. (author)
There is little evidence with respect to the effectiveness of intervention programs that focus on the reduction of occupational quartz exposure in the construction industry. This article evaluates the effectiveness of a multidimensional intervention which was aimed at reducing occupational quartz exposure among construction workers by increasing...
article 2015
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van Deurssen, E. (author), Pronk, A. (author), Spaan, S. (author), Goede, H. (author), Tielemans, E. (author), Heederik, D. (author), Meijster, T. (author)
Quartz exposure can cause several respiratory health effects. Although quartz exposure has been described in several observational workplace studies, well-designed intervention studies that investigate the effect of control strategies are lacking. Tis article describes a baseline exposure study that is part of a multidimensional intervention...
article 2014
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Mijnlieff, H.F. (author), Bloemsma, M.R. (author), Donselaar, M.E. (author), Henares, S. (author), Redjosentono, A.E. (author), Veldkamp, J.G. (author), Weltje, G.J. (author)
The Dutch Koekoekspolder geothermal doublet was drilled in 2011 targeting the Permian Rotliegendreservoir. The encountered reservoir properties were less favorable than expected pre-drill. Post-drill integrated evaluation of vintage data and the new data from the geothermal wells resulted in a refined depositional model of the area. The...
conference paper 2014
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Bolourinejad, P. (author), Shoeibi Omrani, P. (author), Herber, R. (author)
In this study, a long-term (up to 1000 years) geochemical modelling of subsurface CO2 storage was carried out on sandstone reservoirs of depleted gas fields in northeast Netherlands. It was found that mineral dissolution/precipitation has only a minor effect on reservoir porosity. In order to validate this, we focused specifically on the...
article 2014
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Zijp, M. (author), ten Veen, J. (author), Ventra, D. (author), Verreussel, R. (author), van Laerhoven, L. (author), Boxem, T. (author)
This study shows the first results of an ongoing project on the characterization of variations in lithological- and geomechanical properties of targetted gas shale formations. The aim of this study is to get an increased insight into both the fraccability and productivity of a shale formations. Ultimately, this can lead to better localization of...
conference paper 2014
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Zijp, M.H.A.A. (author), Nelskamp, S. (author), Schavemaker, Y.A. (author), ten Veen, J.H. (author), ter Heege, J.H. (author)
The success of shale gas exploration and production in the United States has triggered other countries around the world to look into possibilities of producing gas from different shales. As it turns out, one of the main difficulties when looking for shale gas is obtaining an in depth understanding of the shale formations and interpret where the...
conference paper 2013
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Nguyen, H.P. (author), Wu, M. (author), Su, J. (author), Vullers, R.J.M. (author), Vereecken, P.M. (author), Fransaer, J. (author)
Ethylene glycol was studied as an electrolyte for the electrodeposition of thermoelectric bismuth telluride films by cyclic voltammetry, rotating ring disk electrode and electrochemical quartz crystal microbalance (EQCM). The reduction of both Bi3+ and Te4+ ions proceeds in one step without the formation of intermediates at potentials more...
article 2012
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Wallinga, J. (author), Bos, I.J. (author), TNO Bouw en Ondergrond (author)
We test the applicability of quartz optically stimulated luminescence (OSL) dating on clastic lake sediments to investigate whether this dating method can be applied to study the timing and rate of deposition in Holocene fluvio-deltaic lakes. Our study concerns the filling of a lake by the Angstel-Vecht system, part of the Rhine delta in the...
article 2010
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Giger, S.G. (author), ter Heege, J.H. (author), Clennell, M.B. (author), Wassing, B.B.T. (author), Ciftci, N.B. (author), Delle Piane, C. (author), Harbers, C. (author), Clark, P. (author), TNO Bouw en Ondergrond (author)
A new type of fluid cell has been developed to allow for direct shear deformation of very large and cohesive rock samples under sealed conditions. Rock samples consist of a low-permeability clay or shale layer, which is embedded in porous quartz sandstone to mimic a reservoir-seal pair. The cell is specifically designed to monitor changes of...
conference paper 2009
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TNO Bouw en Ondergrond (author), van der Meulen, M.J. (author), Westerhoff, W.E. (author), Menkovic, A. (author), Gruijters, S.H.L.L. (author), Dubelaar, C.W. (author), Maljers, D. (author)
Silica sand, (almost) pure quartz sand, is a valuable and scarce mineral resource within the shallow Dutch subsurface. High-grade deposits are exploited in the southeastemmost part of the country, as raw material for the glass, ceramic, chemical and other process industries. Dutch land-use policy requires that scarce mineral resources (including...
article 2009
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Wallinga, J. (author), Bos, A.J.J. (author), Dorenbos, P. (author), Murray, A.S. (author), Schokker, J. (author), TNO Bouw en Ondergrond (author)
Infrared-stimulated luminescence (IRSL) dating of feldspars has the potential to date deposits beyond the age range of quartz optical (OSL) dating. Successful application of feldspar IRSL dating is, however, often precluded due to anomalous-fading, the tunnelling of electrons from one defect site to another. In this paper we test procedures...
article 2007
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TNO Bouw en Ondergrond (author), Wallinga, J. (author), Davids, F. (author), Dijkmans, J.W.A. (author)
Over the last decades luminescence dating techniques have been developed that allow earth scientists to determine the time of deposition of sediments. In this contribution we revity: 1) the development of the methodology, 2) tests of the reliability of luminescence dating on Netherlands' sediments; and 3) geological applications of the method in...
article 2007
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TNO Kwaliteit van Leven TNO Voeding (author), Tjoe Nij, E. (author), Heederik, D. (author)
Objectives: The aim of this study was to assess the magnitude of the silicosis and cancer risk among construction workers. Methods: In 1998, 1335 of 4173 invited construction workers with expected high cumulative exposure to quartz were studied for early signs of silicosis. In 2002 the study was repeated for 96 persons. Exposure measurements...
article 2005
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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
Searched for: subject%3A%22Quartz%22
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