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van der Voort, M.M. (author), Klein, A.J.J. (author), de Maaijer, M. (author), van den Berg, A.C. (author), van Deursen, J.R. (author), Versloot, N.H.A. (author), TNO Defensie en Veiligheid (author)A quantitative risk assessment (QRA) tool has been developed by TNO for the external safety of industrial plants with a dust explosion hazard. As a first step an industrial plant is divided into groups of modules, defined by their size, shape, and constructional properties. Then the relevant explosion scenarios are determined, together with...article 2007
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TNO Kwaliteit van Leven (author), van den Stomp-Berg, S.G.M. (author), van Poppel, M.N.M. (author), Hendriksen, I.J.M. (author), Bruinvels, D.J. (author), Uegaki, K. (author), de Bruijne, M.C. (author), van Mechelen, W. (author)Background. Many women suffer from health problems after giving birth, which can lead to sick leave. About 30% of Dutch workers are on sick leave after maternity leave. Structural contact of supervisors with employees on maternity leave, supported by early medical advice of occupational physicians, may increase the chances of return-to-work...article 2007
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- Vladusich, T. (author), Lucassen, M.P. (author), Cornelissen, F.W. (author), TNO Defensie en Veiligheid (author) article 2006
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Meijster, T. (author), Fransman, W. (author), van Hemmen, J. (author), Kromhout, H. (author), Heederik, D. (author), Tielemans, E. (author), TNO Kwaliteit van Leven (author)Objective: The main goal was to investigate the potential of a probabilistic approach for exposure assessment and use this information to evaluate the impact of a complex of policy actions/interventions on dermal exposure to antineoplastic agents among oncology nurses. The central theme of this study was to make optimal use of existing data,...article 2006
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van Oyen, H. (author), Heyden, J. (author), Perenboom, R. (author), Jagger, C. (author), TNO Preventie en Gezondheid (author)Objective: To evaluate a single item instrument, the Global Activity Limitation Indicator (GALI), to measure long-standing health related activity limitations, against several health indicators: a composite morbidity indicator, instruments measuring mental health (SCL-90R, GHQ-12), physical co-morbidity and physical limitations (ADLs, SF-36)....article 2006
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Gietelink, O.J. (author), de Schutter, B. (author), Verhaegen, M. (author), TNO Industrie en Techniek (author)We present an approach for validation of advanced driver assistance systems, based on randomized algorithms. The new method consists of an iterative randomized simulation using adaptive importance sampling. The randomized algorithm is more efficient than conventional simulation techniques. The importance sampling pdf is estimated by a kernel...conference paper 2006
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Sun, J. (author), Vlahopoulos, N. (author), Stabryla, T.J. (author), Goetz, R. (author), van de Velde, R. (author), TNO Industrie en Techniek (author)One of the main threats to military vehicles originates from landmine blasts. In order to improve the survivability of the occupants it is important to design a military vehicle for increased occupant safety. Simulation technology that combines modeling of the blast loads from the landmine explosion, the response of the vehicle to the blast load...conference paper 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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Bemelmans, W.J.E. (author), van Lenthe, F. (author), Hoogenveen, R. (author), Kunst, A. (author), Deeg, D.J.H. (author), van den Brandt, P.A. (author), Goldbohm, R.A. (author), Verschuren, W.M.M. (author), TNO Kwaliteit van Leven (author)Background and Objective: To estimate the effects of reducing the prevalence of smoking in lower educated groups on educational differences in life expectancy. Methods: A dynamic Markov-type multistate transition model estimated the effects on life expectancy of two scenarios. A "maximum scenario" where educational differences in prevalence of...article 2006
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TNO Bouw en Ondergrond (author), Vrouwenvelder, A.C.W.M. (author)The defence against flooding by storm surges and large river discharges are provided by complex systems of dikes, dunes, retaining walls, higher grounds, barriers, locks and so on. Spatial correlations inside and between the various components play an important role in the reliability and risk assessment of the system. The correlation may be...conference paper 2006
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van Eijs, R.M.H.E. (author), Mulders, F.M.M. (author), Nepveu, M. (author), Kenter, C.J. (author), Scheffers, B.C. (author), TNO Bouw en Ondergrond (author)Earthquakes induced by gas production are a social concern in the Netherlands. Over the last two decades, a total of about 350 such earthquakes have been recorded, with magnitudes ranging up to 3.5 on Richter's scale. The new Dutch mining law prescribes the operators to give a quantitative estimation of the likelihood of future seismic activity ...article 2006
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TNO Kwaliteit van Leven (author), Nieuwenhuijsen, K. (author), Verbeek, J.H.A.M. (author), de Boer, A.G.E.M. (author), Blonk, R.W.B. (author), van Dijk, F.J.H. (author)Objectives: This study attempted to determine the factors that best predict the duration of absence from work among employees with common mental disorders. Methods: A cohort of 188 employees, of whom 102 were teachers, on sick leave with common mental disorders was followed for 1 year. Only information potentially available to the occupational...article 2006
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de Theije, P.A.M. (author), van Moll, C.A.M. (author), TNO Defensie en Veiligheid (author)This paper presents an algorithm that can be used to fuse two sets of contacts, e.g. as observed by two active sonar systems. The goal is to keep a good probability of detection, without doubling the number of false alarms after combining both data sets. We present both the theoretical motivation of the algorithm, as well as simulations that...conference paper 2005
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Monraats, P.S. (author), Pires, N.M.M. (author), Agema, W.R.P. (author), Zwinderman, A.H. (author), Schepers, A. (author), de Maat, M.P.M. (author), Doevendans, P.A. (author), de Winter, R.J. (author), Tio, R.A. (author), Waltenberger, J. (author), Frants, R.R. (author), Quax, P.H.A. (author), van Vlijmen, B.J.M. (author), Atsma, D.E. (author), van der Laarse, A. (author), van der Wall, E.E. (author), Jukema, J.W. (author), TNO Kwaliteit van Leven (author)Background - Restenosis is a negative effect of percutaneous coronary intervention (PCI). No clinical factors are available that allow good risk stratification. However, evidence exists that genetic factors are important in the restenotic process as well as in the process of inflammation, a pivotal factor in restenosis. Association studies have...article 2005
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Cheung, S.-K. (author), van den Berg, H. (author), Boucherie, R.J. (author), TNO Informatie- en Communicatietechnologie (author)We obtain a decomposition result for the steady state queue length distribution in egalitarian processor-sharing (PS) models. In particular, for multi-class egalitarian PS queues, we show that the marginal queue length distribution for each class equals the queue length distribution of an equivalent single class PS model with a random number of...article 2005
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van den Heuvel, S.G. (author), Heinrich, J. (author), Jans, M.P. (author), van der Beek, A.J. (author), Bongers, P.M. (author), TNO Kwaliteit van Leven (author)Background. Little is known of the preventive effects of physical activity in leisure time on neck and upper limb symptoms. Methods. A cohort of 1742 employees was selected from a prospective cohort study with a follow-up period of 3 years. Independent variables were sporting activities and physically active commuting. Outcome measures were neck...article 2005
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Smith, A.J.E. (author), Chesworth, J. (author), Greidanus, H. (author), TNO Defensie en Veiligheid (author)A ship detection algorithm is developed that uses Envisat ASAR imagery in alternating polarisation mode. From airborne data it is shown that of the two co-polarisations, HH is preferred over VV because of a larger ship-to-clutter ratio. Combining the HH and HV images of alternating polarisation mode, it is found that the correlation between the...conference paper 2005
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Vermeulen, J.F.J. (author), van den Brink, M. (author), TNO Defensie en Veiligheid (author)We investigate a two-sided, multi-stage search problem where a continuous search effort is made by one or more search units to detect a moving target in a continuous target space, under noisy detection conditions. A specific example of this problem is hunting for an enemy submarine by naval forces. So far, this problem has not been solved,...article 2005
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- Netzeva, T.I. (author), Worth, A.P. (author), Aldenberg, T. (author), Benigni, R. (author), Cronin, M.T.D. (author), Gramatica, P. (author), Jaworska, J.S. (author), Kahn, S. (author), Klopman, G. (author), Marchant, C.A. (author), Myatt, G. (author), Nikolova-Jeliazkova, N. (author), Patlewicz, G.Y. (author), Perkins, R. (author), Roberts, D.W. (author), Schultz, T.W. (author), Stanton, D.T. (author), van de Sandt, J.J.M. (author), Tong, W. (author), Veith, G. (author), Yang, C. (author), TNO Kwaliteit van Leven (author) article 2005
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Mommers, M. (author), Schouten, L.J. (author), Goldbohm, R.A. (author), van den Brandt, P.A. (author), TNO Kwaliteit van Leven (author)BACKGROUND. To the authors' knowledge, only a few prospective studies to date have investigated the correlation between vegetable and fruit consumption and the risk of ovarian carcinoma and their results have been inconclusive. METHODS. Vegetable and fruit intake was assessed in relation to ovarian carcinoma, among 62,573 postmenopausal women...article 2005