Reconstruction of in-plane strain maps using hybrid dense sensor network composed of sensing skin

The authors have recently developed a soft-elastomeric capacitive (SEC)-based thin film sensor for monitoring strain on mesosurfaces. Arranged in a network configuration, the sensing system is analogous to a biological skin, where local strain can be monitored over a global area. Under plane stress conditions, the sensor output contains the additive measurement of the two principal strain components over the monitored surface. In applications where the evaluation of strain maps is useful, in structural health monitoring for instance, such signal must be decomposed into linear strain components along orthogonal directions. Previous work has led to an algorithm that enabled such decomposition by leveraging a dense sensor network configuration with the addition of assumed boundary conditions. Here, we significantly improve the algorithm's accuracy by leveraging mature off-the-shelf solutions to create a hybrid dense sensor network (HDSN) to improve on the boundary condition assumptions. The system's boundary conditions are enforced using unidirectional RSGs and assumed virtual sensors. Results from an extensive experimental investigation demonstrate the good performance of the proposed algorithm and its robustness with respect to sensors' layout. Overall, the proposed algorithm is seen to effectively leverage the advantages of a hybrid dense network for application of the thin film sensor to reconstruct surface strain fields over large surfaces.This is an author-created, un-copyedited version of an article accepted for publication/published in Measurement Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi: 10.1088/0957-0233/27/12/124016 ”. Posted with permission.</p

#MoreInCommon: Collective Mourning Practices on Twitter and the Iconisation of Jo Cox

The murder of Jo Cox MP on 16 June 2016 brought the UK EU Referendum campaign to a shocked standstill, as reports emerged that the killer had shouted ‘Britain First’ after shooting and stabbing the MP. This chapter examines the role of the aesthetic and symbolic in the tweets shared by those responding to Jo Cox’s death. I demonstrate how linkages between popular culture forms, visual tropes and symbols were deployed by those both expressing their identification as an emergent compassionate collectivity and, to a lesser degree, those who articulated their support for her murderer’s actions. The visual sharing practices on Twitter re-cast Jo Cox as a retrospective public figure whose values are to be admired. In becoming a publicly recognisable figure in the wake of her violent death, Jo Cox’s values become crystallised by the creative efforts of others, who form a community around her image and political vision