ScienceDaily: Energy and Resources News |
| Finding Achilles' heel of GaN-based LEDs in harsh radiation environments Posted: 08 Dec 2014 07:54 AM PST Proton irradiation of gallium nitride causes more damage in p-type material than n- doped layers, scientists have discovered. This unexpected finding is important for the application of GaN-based devices in extreme environments.  |
| Fracking and pollution: Technology-dependent emissions of gas extraction in the US Posted: 08 Dec 2014 04:43 AM PST Not all boreholes are the same. Scientists used mobile measurement equipment to analyze gaseous compounds emitted by the extraction of oil and natural gas in the US. For the first time, organic pollutants emitted during a fracking process were measured at a high temporal resolution using a vapor capture system. The highest values measured by this process exceeded typical mean values in urban air by a factor of about one thousand.  |
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