Sheffield, South Yorkshire, United Kingdom

Departments View all

School of Health and Related Research (ScHARR)
3,577
Total Impact Points
313
Members
Department of Mechanical Engineering
1,114
Total Impact Points
300
Members
Department of Materials Science and Engineering
3,732
Total Impact Points
258
Members

Publication History View all

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This paper proposes an approximate algorithm, called QEAM, which com-bines a P system with active membranes and a quantum-inspired evolution-ary approach. QEAM uses the hierarchical arrangement of the compart-ments and developmental rules of a P system with active membranes, and the objects consisting of quantum-inspired bit individuals, a probabilistic ob-servation and the evolutionary rules designed with quantum-inspired gates to specify the membrane algorithms. A large number of experiments carried out on bench satisfiability problems show that the QEAM outperforms the QEPS (quantum-inspired evolutionary algorithm based on P systems) and its counterpart quantum-inspired evolutionary algorithm.
    International Journal of Computers, Communications & Control (IJCCC) 02/2015; 10(2). DOI:10.15837/ijccc.2015.2.1757
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The geopolitical changes of 1989 saw the development of multiple forces, of which migration is one. Greece experienced a shift from a traditionally sender country to a main destination country for immigrants from Central and Eastern Europe and the former Soviet Union. Employing a discursive social constructionist approach, this paper presents the ways in which immigrants are 'nationalized' in talking about Greekness and migrant integration in Greece. Firstly, it focuses on the construction of migration as inevitable. Secondly, the criteria and conditions of inclusion in the wider national group are presented. Finally, the discursive resources used in the extension of Greekness and the functions of this extension are explored as regards the banal aspects of national identity construction and its dilemmatic nature vis a vis the dilemma of prejudice. This dilemma seems to be managed by the participants of this study by extending Greekness, in order for various ethnic and national groups to be seemingly included in the wider national group, as a 'contract' of assimilation and morality.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: We reconsider the closed form solution of the ptychographic phase problem called the Wigner Distribution Deconvolution Method (WDDM), which has remained discarded for twenty years. Ptychographic reconstruction is nowadays always undertaken by iterative algorithms. WDDM gives rise to a 4 dimensional data cube of all the relative phases between points in the diffraction plane. Here we demonstrate a novel method to use all this information, instead of just the small subset used in the original ‘stepping out’ procedure developed in the 1990 s, thus greatly suppressing noise. We further develop a method for designing an improved probe (illumination function) to further decrease noise effects during the deconvolution division. Combining these two with an iterative procedure for the deconvolution, which avoids the usual difficulty of a divide by a small number, we show in model calculations that WDDM competes well with the modern conventional iterative methods like ePIE (the extended Ptychographical Iterative Engine).
    Ultramicroscopy 12/2014; 147. DOI:10.1016/j.ultramic.2014.07.004

Information

  • Address
    Western Bank, S10 2TN, Sheffield, South Yorkshire, United Kingdom
  • Head of Institution
    Sir Peter Middleton
  • Website
    http://www.shef.ac.uk/
  • Phone
    0114 222 2000
Information provided on this web page is aggregated encyclopedic and bibliographical information relating to the named institution. Information provided is not approved by the institution itself. The institution’s logo (and/or other graphical identification, such as a coat of arms) is used only to identify the institution in a nominal way. Under certain jurisdictions it may be property of the institution.

5829 Members View all

View all

Top publications last week by downloads

 
199 Downloads
 
Employee Relations 05/2003; 25(3):262-280. DOI:10.1108/01425450310475856
146 Downloads

Top Collaborating Institutions

Collaborations

This map visualizes which other institutions researchers from The University of Sheffield have collaborated with.

Rg score distribution

See how the RG Scores of researchers from The University of Sheffield are distributed.