Dr. Subhash C. Narang Profile

Dr. Subhash C. Narang

President at Shakti Technologies Inc

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Proceedings Article | 27 April 2007 Paper

Circulatory system for unmanned air vehicles

Anoop Nagar, Eric Anderson, Preethi Rao, Subhash Narang

Proceedings Volume 6525, 65251A (2007) https://doi.org/10.1117/12.716207

KEYWORDS: Solids, Circulatory system, Electromagnetism, Polymers, Switching, Microfluidics, Composites, Fractal analysis, Copper, Absorption

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We have built a platform circulatory system by fabricating channels whose dimensions and layout are analogous to a fractal system where the reactants (fluids) are carried from a central reservoir, through progressively smaller channels ultimately with a width of 100 microns as they interface with the cellular structure. The construction of the macro/micro channel platform has been carried out using the direct write/solid freeform photo fabrication hybrid platform developed by the principle investigator. The interaction of reactants is controlled at the cellular level depending upon the fractional change in structural properties to be performed. The macro/micro channel system is metallized with copper, nickel and gold to enable to allow electrochemical transformations on demand. The circulatory system has been used to increase the modulus of a beam by polymerizing monomers to high modulus polymers with a view towards repairing structural damage. The metallized channels have been used to alter the electromagnetic absorption of a structure via electrochemical switching between conducting, semiconducting and insulating states. The electromagnetic characteristics have also been altered by replacing the dopant anions with anions of significantly altered stereoelectronic characteristics by taking advantage of the circulatory system.

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