A paper entitled “MineVue radar for delineation of abandoned mine galleries” has been published by the Indian Academy of Sciences in its Current Science journal (vol. 107, pp 181-183).  The paper discusses the applications on intrinsically-safe radar for detecting abandoned workings ahead of a working face in underground coal mines in India.  The paper stems from the MineVue technology developed by Groundradar and Utsi Electronics for a large CIMFR R&D project spanning 2008-2012.   http://www.currentscience.ac.in/Volumes/107/02/0181.pdf