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Small to moderate scale greywater treatment technology

The Challenge / Concern: Water scarcity is a relevant threat to humanity. In spite of limited availability of fresh water, there are little efforts to recover spent water. Through blackwater deserves to be spent to dedicated water treatment plants, the greywater can be reused for similar purpose with the treatment at the source. Relatively compact …

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Portable long range acoustic hailer design as non-lethal weapon

The Challenge / Concern: Less than lethal weapons lead to some damage to the people in crowd.  Most of the crowd control technologies are having specific range and limited target efficacy. A technology with systemic efficacy was desired. Brief (and non-confidential) Solution Noise due to the pressure waves is known to irritate human brain. Crowd …

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