New Delhi, Jan. 29 -- Defence Research and Development Organisation handed over seven technologies developed under the Technology Development Fund (TDF) scheme to the three Services. The technologies are: an indigenous high voltage power supply for airborne self-protection jammers; a tide efficient gangway for naval jetties; advanced very low frequency-high frequency switching matrix systems; VLF loop aerials for underwater platforms; indigenous waterjet propulsion system for fast interceptor craft; a novel process for recovery of lithium precursors from used lithium-ion batteries and a long life seawater battery system for sustained underwater sensing and surveillance applications
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