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Bouma, R.H.B. (author), Griffiths, T.T. (author), Tuukkanen, I.M. (author)To ensure safety and reliability, it is important that the explosives and other materials used in munitions do not interact adversely either physically or chemically. Data obtained by heat flow calorimetry on nitrocellulose-based propellants have been reviewed with the aim of identifying improved chemical compatibility assessment criteria. It...article 2019
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Luiijf, E. (author), Klaver, M. (author)This chapter discusses new societal risk due to the fast information and communication as well as operational technology changes which are not yet fully taken into account by governmental policymakers and regulators. Internet-of-things, cloud computing, mass consumer markets and embedded operational technologies are some of the areas outlined in...bookPart 2019
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Traversari, A.A.L. (author), van Heumen, S.P.M. (author), van Tiem, F.L.J. (author), Bottenheft, C. (author), Hinkema, M.J. (author)Background: The effectiveness of an airflow system in preventing entrainment of particles carrying micro-organisms from the periphery of an operating room (OR) or instrument layup room (ILR) is affected by many variables. It is suspected that differences in the design of the systems affect the effective protection ratio (EPR): the ratio of the...article 2019
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- Philippens, M.M.G.M.M. (author), Ouellet, S. (author) bookPart 2019
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Ozbek, A.S. (author), Pedersen, R.R. (author), Weerheijm, J. (author), van Breugel, K. (author)This study presents the numerical analyses conducted to investigate the impact behavior of different porous concretes, which have also been cast and tested experimentally. For a realistic representation of the real porous concretes containing arbitrary shaped air pores, a mesh generation code was developed in which the aggregates in the mixtures...article 2019
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- Field, M. (author), Splevins, A. (author), Picaut, P. (author), van der Schans, M. (author), Langenberg, J. (author), Noort, D. (author), Snyder, D. (author), Foster, K. (author) article 2019
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Simons, E.C. (author), Weerheijm, J. (author), Sluys, L.J. (author)Alumina ceramic is often used in armour systems. This material is known to have a brittle response under tensile loading, while a ductile response is found when sufficiently high pressures are reached. During projectile impact a ceramic material experiences both tensile loading and high pressures, hence fails in both a brittle and ductile way....article 2019
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Li Piani, T. (author), Weerheijm, J. (author), Koene, L. (author), Sluys, L.J. (author)A local damage model is proposed for the numerical assessment of the static performance of Adobe masonry components. The model was applied to simulate the experimental behaviour of sundried soil bricks and mud mortar tested in uniaxial compression and bending. Numerical simulations of the model are made mesh objective by means of a rate...article 2019
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de Koning, M.C. (author), Peterson, G.W. (author), van Grol, M. (author), Iordanov, I. (author), McEntee, M. (author)Nerve agents are among the most toxic substances known to man. Recent events in Syria, Malaysia, and the UK illustrate that the threat of these substances is real and actual. The timely detection and identification of nerve agents is of great importance to facilitate timely decontamination or medical countermeasures. In this work, an effective...article 2019
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Scholtes, J.H.G. (author)For fragment impact and sympathetic reaction calculations, a variety of empirical and simple 1D-shock models have been developed. Some of these, like the Walker-Wasley or the Cook-Haskins-James model, use a simple critical energy criterion. The empirical Jacobs-Roslund model has a large database and is well-known in the explosive community for...conference paper 2019
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Lloyd, C. (author), Mannucci, T. (author), Bouma, H. (author), Schutte, K. (author), Huizing, A. (author)In recent years advances in machine learning methods such as deep learning has led to significant improvements in our ability to track people and vehicles, and to recognise specific individuals. Such technology has enormous potential to enhance the performance of image-based security systems. However, wide-spread use of such technology has...conference paper 2019
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- van Hulst, M. (author), Groeneveld, F.R. (author), Langenberg, J.P. (author) conference paper 2019
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Field, M. (author), Splevins, A. (author), Picaut, P. (author), van der Schans, M. (author), Langenberg, J. (author), Noort, D. (author), Foster, K. (author)Botulinum neurotoxin type-A (BoNT-A) blocks the release of acetylcholine from peripheral cholinergic nerve terminals and is an important option for the treatment of disorders characterised by excessive cholinergic neuronal activity. Several BoNT-A products are currently marketed, each with unique manufacturing processes, excipients, formulation,...article 2018
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Valle da Silva, J.A. (author), Modesto-Costa, L. (author), de Koning, M.C. (author), Borges, I. (author), Costa França, T.C. (author)In this work, quaternary and non-quaternary oximes designed to bind at the peripheral site of acetylcholinesterase previously inhibited by organophosphates were investigated theoretically. Some of those oximes have a large number of degrees of freedom, thus requiring an accurate method to obtain molecular geometries. For this reason, the density...article 2018
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Lippert, T. (author), Ainslie, M.A. (author), von Estorff, O. (author)Sound produced by marine pile driving activities poses a possible risk to marine life. The assessment and mitigation of this risk requires a precise prediction of the expected levels. An analytical approach to estimate the radiated sound exposure levels is presented, based on the axial symmetry of the problem, resulting in damped cylindrical...article 2018
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Harris, C.M. (author), Thomas, L. (author), Falcone, E.A. (author), Hildebrand, J. (author), Houser, D. (author), Kvadsheim, P.H. (author), Lam, F.P.A. (author), Miller, P.J.O. (author), Moretti, D.J. (author), Read, A.J. (author), Slabbekoorn, H. (author), Southall, B.L. (author), Tyack, P.L. (author), Wartzok, D. (author), Janik, V.M. (author)Marine mammals may be negatively affected by anthropogenic noise. Behavioural response studies (BRS) aim to establish a relationship between noise exposure conditions (dose) from a potential stressor and associated behavioural responses of animals. A recent series of BRS have focused on the effects of naval sonar sounds on cetaceans. Here, we...article 2018
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Veraar, R.G. (author), Wieling, W.P.W. (author)Solid Fuel Ramjet (SFRJ) technology is a very attractive propulsion option to extend the range of gun launched projectiles mainly due to the combination of high specific impulse inherent to airbreathing propulsion and mechanical properties of the solid fuel capable of withstanding the very high launch loads in the gun. In 2004, the Netherlands...conference paper 2018
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van Lieshout, M.J. (author), Emmert, S.B. (author)The right to privacy is enshrined in the European charter of fundamental rights. The right to data protection is a relatively novel right, also enshrined in the same European charter. While these rights seem to focus on a defensive and protective approach, they also give rise to a positive and constructive interpretation. The GDPR may act as...conference paper 2018
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Bouma, H. (author), Schutte, K. (author), ten Hove, R.J.M. (author), Burghouts, G.J. (author), Baan, J. (author)Surveillance systems are essential for the protection of military compounds and critical infrastructures. Automatic recognition of suspicious activities can augment human operators to find relevant threats. Common solutions for behavior analysis or action recognition require large amounts of training data. However, suspicious activities and...conference paper 2018
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White, A. (author)Responding to an operating environment characterised by both low- and high-intensity operations, armed forces continue to consider multiple avenues to enhance the protection and mobility of personnel across the battlespace.article 2018