Intelligent door seal prevents poor air quality

For a long time, heat insulation was en vogue – and nearly no one was concerned about poor indoor air quality. And yet excess CO2 hampers concentration. Now, researchers have come up with an intelligent door seal system.

Study evaluates strategies for generating electricity from hog waste

(Phys.org) —Capturing methane gas from hog farms and piping it into existing natural gas pipelines may be a cost-effective way to meet North Carolina's Renewable Energy and Energy Efficiency Portfolio Standard (REPS), according ...

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