We explore the idea that the occurrence of nano-flares in the magnetic loop around the O VI formation temperature could explain the observed red-shift of mid-low transition region lines as well as the blue-shift observed in low coronal lines (T > 6 10^{5} K). Observations are compared to numerical simulations of the response of the solar atmosphere to an energy perturbation of 4 10^24 ergs representing an energy release during magnetic reconnection in a 1-D semi-circular flux tube. ...

... Compilation and execution with the NAG compiler . Peculiarities in the NAG compiler . System parameters The Numerical Algorithms Group Ltd Wilkinson House Jordan Hill Road Oxford OX2 8DR infodesk@nag.co.uk Tel: +44 1865 511245 Fax: +44 1865 310139 NAG offers a Fortran 90 system which behaves as a compiler but in reality translates to C (except for the PC version). ... CERN had at that time a total of 80 000 code lines working with NAG's Fortran 90 compiler, version 1.1. ...