The Experts below are selected from a list of 5499 Experts worldwide ranked by ideXlab platform
Rakusova Danka - One of the best experts on this subject based on the ideXlab platform.
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modelling of an explosion of an improvised Explosive Device a vehicle
American journal of mechanical engineering, 2014Co-Authors: Turza Jozef, Elias Jozef, Kopilakova Beata, Rakusova DankaAbstract:An aim of the paper is to define behaviour of a combat vehicle based on an analysis of its movement from a point of a maximum vertical movement, acceleration and forces through development of a mathematical model of a vehicle during an operation of the vehicle in critical situations of a modern battlefield.
Mark G. Stewart - One of the best experts on this subject based on the ideXlab platform.
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field test and probabilistic analysis of irregular steel debris casualty risks from a person borne improvised Explosive Device
Defence Technology, 2020Co-Authors: Piotr W Sielicki, Mark G. Stewart, Tomasz Gajewski, Michal Malendowski, Piotr Peksa, Hasan Alrifaie, Robert Studzinski, Wojciech SumelkaAbstract:Abstract Person-borne improvised Explosive Devices (PBIEDs) are often used in terrorist attacks in Western countries. This study aims to predict the trajectories of PBIED fragments and the subsequent safety risks for people exposed to this hazard. An Explosive field test with a typical PBIED composed of a plastic Explosive charge and steel nut enhancements was performed to record initial fragment behaviour, including positions, velocity, and trajectory angles. These data were used to predict the full trajectory of PBIED fragments using a probabilistic analysis. In the probabilistic analyses a probability of fatality or serious injury was computed. Based on the results presented, many practical conclusions can be drawn, for instance, regarding safe evacuation distances if a person were exposed to a suspected PBIED.
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modelling improvised Explosive Device attacks in the west assessing the hazard
Reliability Engineering & System Safety, 2017Co-Authors: Matthew J. Grant, Mark G. StewartAbstract:Abstract Improvised Explosive Devices (IEDs) continue to be a terrorist weapon of choice. With increasing pressures on the economies of Western nations, spending on counter-terrorism is subject to greater scrutiny. Homeland security agencies are no longer exempt from government fiscal due diligence, needing to justify how their spending achieves best value-for-money. Probabilistic Risk Assessment (PRA) is a valuable tool that can assist in this endeavour. This paper introduces a PRA model that characterises IED attacks in Western nations, and can be used to assess the risk reduction associated with IED attack countermeasures. When using the model with the START open-source terrorism database we identified that current IED attack countermeasures provide a risk reduction of at approximately 22%, and that terrorists using IEDs in Western nations cannot generally be considered adaptive, with the operational effectiveness of terrorists being approximately 7%.
Turza Jozef - One of the best experts on this subject based on the ideXlab platform.
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modelling of an explosion of an improvised Explosive Device a vehicle
American journal of mechanical engineering, 2014Co-Authors: Turza Jozef, Elias Jozef, Kopilakova Beata, Rakusova DankaAbstract:An aim of the paper is to define behaviour of a combat vehicle based on an analysis of its movement from a point of a maximum vertical movement, acceleration and forces through development of a mathematical model of a vehicle during an operation of the vehicle in critical situations of a modern battlefield.
Robert J. Levis - One of the best experts on this subject based on the ideXlab platform.
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determination of inorganic improvised Explosive Device signatures using laser electrospray mass spectrometry detection with offline classification
Analytical Chemistry, 2011Co-Authors: Paul M. Flanigan, John J Brady, Elizabeth J Judge, Robert J. LevisAbstract:The mass spectral detection of low vapor pressure, inorganic-based Explosive signatures including ammonium nitrate, chlorate, perchlorate, sugar, and the constituents contained within black powder are reported using laser electrospray mass spectrometry. The ambient pressure mass spectrometry technique combining nonresonant, femtosecond laser vaporization with electrospray postionization revealed primary and secondary signatures for trace quantities of inorganic Explosives. A mixture of complexation agents in the electrospray solvent enabled the simultaneous detection of vaporized cations, anions, and neutrals in a single measurement. An offline classifier discriminated the inorganic-based Explosives based on the mass spectral signatures resulting in high fidelity identification.
Ernesto Salzano - One of the best experts on this subject based on the ideXlab platform.
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vulnerability of industrial facilities to attacks with improvised Explosive Devices aimed at triggering domino scenarios
Reliability Engineering & System Safety, 2015Co-Authors: Gabriele Landucci, Valerio Cozzani, Genserik Reniers, Ernesto SalzanoAbstract:Process- and chemical plants may constitute a critical target for a terrorist attack. In the present study, the analysis of industrial accidents induced by intentional acts of interference is carried out focusing on accident chains triggered by attacks with home-made (improvised) Explosives. The effects of blast waves caused by improvised Explosive Devices are compared with those expected from a net equivalent charge of TNT by using a specific methodology for the assessment of stand-off distances. It is demonstrated that a home-made Explosive Device has a TNT efficiency comprised between 0.2 and 0.5. The model was applied to a case study, demonstrating the potentiality of improvised Explosives in causing accident escalation sequences and severe effects on population and assets. The analysis of the case-study also allowed obtaining suggestions for an adequate security management.
