4 resultados para Access Conference


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This Open Access (OA) Poster - ‘Destination Open Access: Getting Researchers on Board’, was devised by the Queen’s University Belfast’s OA Team. It outlines the advocacy strategy undertaken to strengthen researchers’ uptake of OA at the University. Research funders, such as the Higher Education Funding Council of England (HEFCE), are increasingly mandating that researchers make their work publically available via an institutional repository. It is therefore imperative that researchers and departments fully engage with open access to ensure future funding.

The team’s advocacy strategy centres around collaboration with the Heads of Schools, Subject Librarians, the Research and Enterprise Office and, most importantly, the researchers themselves. The team regularly organises training sessions and events, on understanding OA, funder compliance and using the institutional repository. We also run outreach activities, such as practical drop-in sessions, promotional give-aways, OA updates to library staff and direct communications to schools. Finally, the team maintain a strong online presence via LibGuides, LibAnswers, the Library Blog and Twitter. We utilise these platforms to highlight topical OA issues, to advertise events, to provide support materials and to interact with researchers.

Statistics indicate that researchers are increasingly engaging with the OA training, communications and outreach events. Since August 2014 over 1200 researchers have attended advocacy sessions. Additionally, the numbers of papers uploaded to the repository each year has steadily increased and there are now over 3, 000 full-text OA research outputs in the Queen’s Research Portal.

This reflects positively on the team’s established approach of working with researchers to develop an OA culture within the University. Whilst it is clear that an open access strategy is essential, support for the open access ethos must come from individual researchers and Schools in order for the University to reach its desired destination of maximum uptake of open access.

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Composites are fast becoming a cost effective option when considering the design of engineering structures in a broad range of applications. If the strength to weight benefits of these material systems can be exploited and challenges in developing lower cost manufacturing methods overcome, then the advanced composite systems will play a bigger role in the diverse range of sectors outside the aerospace industry where they have been used for decades.
This paper presents physical testing results that showcase the advantages of GRP (Glass Reinforced Plastics), such as the ability to endure loading with minimal deformation. The testing involved is a cross comparison of GRP grating vs. GRP encapsulated foam core. Resulting data gained within this paper will then be coupled with design optimization (utilising model simulation) to bring forward layup alterations to meet the specified load classifications involved.

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We study a multiuser multicarrier downlink communication system in which the base station (BS) employs a large number of antennas. By assuming frequency-division duplex operation, we provide a beam domain channel model as the number of BS antennas grows asymptotically large. With this model, we first derive a closed-form upper bound on the achievable ergodic sum-rate before developing necessary conditions to asymptotically maximize the upper bound, with only statistical channel state information at the BS. Inspired by these conditions, we propose a beam division multiple access (BDMA) transmission scheme, where the BS communicates with users via different beams. For BDMA transmission, we design user scheduling to select users within non-overlapping beams, work out an optimal pilot design under a minimum mean square error criterion, and provide optimal pilot sequences by utilizing the Zadoff-Chu sequences. The proposed BDMA scheme reduces significantly the pilot overhead, as well as, the processing complexity at transceivers. Simulations demonstrate the high spectral efficiency of BDMA transmission and the advantages in the bit error rate performance of the proposed pilot sequences.

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In order to address the increasing compromise of user privacy on mobile devices, a Fuzzy Logic based implicit authentication scheme is proposed in this paper. The proposed scheme computes an aggregate score based on selected features and a threshold in real-time based on current and historic data depicting user routine. The tuned fuzzy system is then applied to the aggregated score and the threshold to determine the trust level of the current user. The proposed fuzzy-integrated implicit authentication scheme is designed to: operate adaptively and completely in the background, require minimal training period, enable high system accuracy while provide timely detection of abnormal activity. In this paper, we explore Fuzzy Logic based authentication in depth. Gaussian and triangle-based membership functions are investigated and compared using real data over several weeks from different Android phone users. The presented results show that our proposed Fuzzy Logic approach is a highly effective, and viable scheme for lightweight real-time implicit authentication on mobile devices.