ENBIS-14 in Linz

21 – 25 September 2014; Johannes Kepler University, Linz, Austria Abstract submission: 23 January – 22 June 2014

My abstracts


The following abstracts have been accepted for this event:

  • Some Examples of the Parsum Equation and What it Means

    Authors: Chris McCollin (Nottingham Trent University)
    Primary area of focus / application: Reliability
    Keywords: Parsum equation, Reliability, Parsum plots
    Submitted at 16-Sep-2014 12:06 by Chris McCollin
    24-Sep-2014 09:40 Some Examples of the Parsum Equation and What it Means
    By considering an event as a point in a continuous plane, it is possible to derive differential equations for the number of events in time. These equations relate to the physical properties of the system (which relate to a Levy process) and approximate solutions have been found (McCollin, ENBIS 2014). Any system which is being driven by an external force will have events defined within the system governed by the internal rules of the system. Example analyses have been done for parts of systems (OREDA data set), reliability development testing, football team results (measure of managerial confidence), political party majority, long term childhood illness into adulthood illness and general (human) wellbeing. The interesting parts of the parsum plots is given by what types of event are occurring at the peaks and troughs (minimum velocity) and the steepest gradients (maximum velocity) and a physical explanation is given to extreme events.