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Designing acoustic sensors with adaptable frequency responses is of great interest in order to deal with diverse application requirements. A bio-inspired acoustic concept exploiting frequency agility using a MEMS microphone front-end is presented. Simulations and experimental results show adaptations of the microphone's acoustic frequency response according to applied DC voltage potentials. Finally,...
The past does not exist. This may seem a strange way to start a book on archaeology and history, but this is a view now widely accepted. What does exist are interpretations of the past constructed in the present. Academics, in their wisdom, create theories and methodologies which allow them to evaluate, select and exclude different pasts. Nevertheless, this inherent relativism gives rise to differing...
This chapter considers the archaeology of historical African societies and their use in generating models for the understanding of earlier communities. There is nothing new in suggesting such approaches and indeed there are significant theoretical problems in using later episodes to explain earlier archaeological events. However, as with the use of it’s rich ethnographies, Africa’s plentiful historical...
Miniaturization of sound localization sensors arrays is heavily constrained by the limited directional cues in intensity difference and phase difference available at the microscale. Micro-Electro Mechanical System (MEMS) sound localization sensors inspired by the auditory system of Ormia ochracea offer a potential solution to this problem by the apparent amplification of the available intensity and...
Electrification for commercial vehicle fleets presents opportunity to cut emissions, reduce fuel costs, and improve operational metrics. However, infrastructure limitations in urban areas often inhibit the ability to charge a significant number of electric vehicles, especially under one roof. This paper highlights a novel controls approach developed at GE Global Research in conjunction with Columbia...
Electric vehicles are getting lot of attention during the last few years around the world to deal with environmental concerns as well as to increase economic stability by reducing oil consumption. But this new technology can pose a threat to the utilities by adding extra demand on an electric grid. In this paper, we propose a methodology to interface the utility with electric vehicle supply equipment...
Crime Pattern Theory argues that offenders often commit their crimes at major criminal attractors or along the routes that lead to these attractors from other activity nodes in their awareness space. Without knowledge about each offender's awareness space, however, it is not possible to know the nodes they travel to. In this paper, it is assumed that each offender commits their crime along the way...
The future growth of electrified transportation could be enhanced through interaction with smart grid system architectures. This paper summarizes current literature regarding plug-in electric vehicle — renewables integration and highlights areas of need to implement such integration at a multi-utility scale. Future smart grid implementations hold the key to transferring information and control parameters...
In the current study we develop a Criminal Movement Model (CriMM) to investigate the relationship between simulated travel routes of offenders along the physical road network and the actual locations of their crimes in the same geographic space. With knowledge of offenders' home locations and the locations of major attractors, we are able to model the routes that offenders are likely to take when...
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