our ▁▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁Second ▁Generation ▁Pat rol ▁V essel ▁ ▁Notes ▁ ▁Bibli ography ▁▁▁▁▁▁ ▁Category : M ek o ▁ 3 6 0 - class ▁fr ig ates ▁Category : Dest roy er ▁classes ▁Category : F rig ate ▁classes <0x0A> </s> ▁High ▁Energy ▁Material s ▁Research ▁Labor atory ▁( HE M RL ) ▁is ▁a ▁labor atory ▁of ▁the ▁Def ence ▁Research ▁and ▁Development ▁Organisation ▁( DR DO ). ▁Loc ated ▁in ▁P une , ▁its ▁main ▁function ▁is ▁the ▁research ▁and ▁development ▁of ▁techn ologies ▁and ▁products ▁in ▁the ▁area ▁of ▁High ▁Energy ▁Material s ▁and ▁Ex pl os ive ▁materials . ▁H EM RL ▁is ▁organ ised ▁under ▁the ▁Arm aments ▁Director ate ▁of ▁DR DO . ▁The ▁Ex . ▁director ▁of ▁H EM RL ▁was ▁Late ▁B ik ash ▁Bh attach ary a . ▁ ▁H EM RL ▁has ▁a ▁core ▁strength ▁of ▁ 1 , 2 0 0 ▁personnel , ▁compr ising ▁chem ists , ▁phys ic ists , ▁mathemat icians , ▁chemical , ▁mechanical ▁and ▁electronic ▁engine ers . ▁It ▁is ▁recogn ised ▁as ▁a ▁post grad uate ▁centre ▁for ▁basic ▁and ▁applied ▁research ▁and ▁is ▁an ▁ISO - 9 0 0 1 : 2 0 0 0 ▁cert ified ▁labor atory . ▁ ▁History ▁ ▁The ▁prec ursor ▁to ▁H EM RL ▁was ▁the ▁Chem ical ▁Ex am iner ' s ▁Office ▁which ▁was ▁established ▁in ▁ 1 9 0 8 ▁at ▁N ain ital . ▁In ▁ 1 9 6 0 , ▁it ▁was ▁renamed