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While the new system has a significant advantage in energy conversion efficiency over conventional thermoelectric devices it has a much lower power densityâ##that is the amount of power that can be delivered for a given weight.
"says Chris Chang, an expert in catalysts for carbon-neutral energy conversions.""In our system, nanowires harvest solar energy and deliver electrons to bacteria,
says Chris Chang, an expert in catalysts for carbon-neutral energy conversions. n our system, nanowires harvest solar energy and deliver electrons to bacteria,
-but Wang estimates about a 10-percent increase in the average vehicle's gas mileage given 50-percent friction energy conversion efficiency."
However, scientists estimated that fuel efficiency could be improved by as much as 10%,given 50%friction energy conversion efficiency.
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