000 00387nam a2200121Ia 4500
008 190816s9999 xx 000 0 und d
100 _aKirubadharshini . B Pavithra . S Punitha . S
245 0 _aSmart Helmet For Coal Miners Using Zigbee Technology
260 _c2017
700 _aNagarathinam S
856 _uhttp://library.kct.ac.in/opac-tmpl/bootstrap/THESIS/P 4575.pdf
942 _cPR
999 _c175077
_d175077