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GALPROP update for accurate propagation calculation
The GALPROP program (http://galprop.stanford.edu) computes cosmic-ray propagation numerically. To obtain manifestly accurate solutions an explicit method is now available to replace the Crank-Nicolson operator-splitting method. This can be implemented in the public version of GALPROP with the update provided here.
Instructions: replace the four files propel.cc, propel_diagnostics, Galdef.cc and Galdef.h and rebuild the executable.
Add solution_method and solution_convergence to the galdef parameter file. A test GALDEF file with these parameters is galdef_54_reltest09; the diagnostics document the accuracy of the solution.
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...Here is software for videoguide, hardware part consists of PIC-ruled step motors, which tilt a glass plate, correcting by this tilt position of a star or other object. The guiding object is selected by operator in a part of video from gude's CCD-camera. Selected area can be preprocessing by wavelet-filter or median filter and/or histogram equalisation.