Browsing University of Hertfordshire by Author "Helian, N."

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    • A Case for Redundant Arrays of Hybrid Disks (RAHD) 

      Wang, F.; Helian, N.; Wu, S.; Guo, Y.K.; Deng, D.; Khare, V.; Liao, C.; Rashidi, M.; Parker, A. (2008)
      Hybrid Hard Disk Drive was originally concepted by Samsung, which incorporates a Flash memory in a magnetic disk. The combined ultra-high-density benefits of magnetic storage and the low-power and fast read access of NAND ...

    • Delayed switching in memristors and memristive systems 

      Wang, F.; Helian, N.; Wu, S.; Lim, M-G.; Guo, Y.K.; Parker, M.A. (2010)
      It was found that the switching in a memristor takes place with a time delay (this peculiar feature is named “the delayed switching”). This feature has been verified by a circuit-based experiment. The physical interpretation ...

    • Eight Times Acceleration of Geospatial Data Archiving and Distribution on the Grids 

      Wang, F.; Helian, N.; Wu, S.; Guo, Y.K.; Deng, D.; Meng, L.K.; Zhang, W.; Crowncroft, J.; Bacon, J.; Parker, M.A. (2009)
      A grid-powered Web Geographical Information Science (GIS)/Web Processing Service (WPS) system has been developed for archiving and distributing large volumes of geospatial data. However, users, WPS servers, and data resources ...

    • Personal storage grid architecture : consuming cloud data space resources 

      Lim, M-G.; Wu, S.; Simon, T.; Rashid, M.; Helian, N. (2010)
      On-demand cloud applications like online email accounts and online virtual disk space are becoming widely available in various forms. In cloud applications, one can see the importance of underlying resources, such as disk ...

    • Single attestation image for a trusted and scalable grid 

      Deng, Y.; Helian, N. (2010)
      Traditionally, Grid users are forced to trust the Grid platforms, but the users are not always regarded as trustworthy. This trust asymmetry hinders the commercializing of Grid resources. Trusted Grid is proposed to tackle ...