1,090 research outputs found
Emergency response time optimisation using real-time traffic information
This paper describes possible approaches for optimal route selection foremergency vehicles. The presented navigation softwareâs architectures employ real-time traffic congestion information, matched to a tailored map. Four approaches have been described and reviewed against suitability in emergency response situations
Contacting individual Fe(110) dots in a single electron-beam lithography step
We report on a new approach, entirely based on electron-beam lithography
technique, to contact electrically, in a four-probe scheme, single
nanostructures obtained by self-assembly. In our procedure, nanostructures of
interest are localised and contacted in the same fabrication step. This
technique has been developed to study the field-induced reversal of an internal
component of an asymmetric Bloch domain wall observed in elongated structures
such as Fe(110) dots. We have focused on the control, using an external
magnetic field, of the magnetisation orientation within N\'eel caps that
terminate the domain wall at both interfaces. Preliminary magneto-transport
measurements are discussed demonstrating that single Fe(110) dots have been
contacted.Comment: 5 page
Profiling of medical equipment risk using fuzzy logic
Models of risk generally struggle to cope with the complexities of healthcare, and in the context of medical equipment, it is apparent that several categories of âriskâ can be identified which are active concurrently. From previous development of a clinical risk simulation model within a Critical Care environment, a specific implementation of fuzzy logic was found to provide a means of developing a ârisk engineâ which referenced contributing factors and preventative factors of risk in the clinical environment. Components of this ârisk engineâ model have been applied to the task of classification of risk associated with medical equipment. This in turn allows priorities to be identified in relation to management of a diverse equipment portfolio
Precision Indoor Three-Dimensional Visible Light Positioning Using Receiver Diversity and Multilayer Perceptron Neural Network
In recent times, several applications requiring highly accurate indoor positioning systems have been developed. Since the global positioning system is unavailable/less accurate in the indoor environment, alternative techniques such as visible light positioning (VLP) are considered. The VLP system benefits from the wide availability of illumination infrastructure, energy efficiency and the absence of electromagnetic interference. However, there is a limited number of studies on three dimensional (3D) VLP and the effect of multipath propagation on the accuracy of the 3D VLP. This study proposes a supervised artificial neural network to provide accurate 3D VLP whilst considering multipath propagation using receiver diversity. The results show that the proposed system can accurately estimate the 3D position with an average root mean square (RMS) error of 0.0198 and 0.021 m for line-of-sight (LOS) and non-LOS link, respectively. For 2D localisation, the average RMS errors are0.0103 and 0.0133 m, respectively
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