NRC/CRF laser-based technique for measuring "real world"emissions seen as key to validating federal vehicle compliance procedures
As it coasts down the Altamont Pass near Livermore, Calif., this Volkswagon Jetta’s vehicle and engine speed measurements are time-matched with LII measurements to obtain a synchronized data set correlating real-time particulate emissions.
Using a unique laser-based, soot heating technique, a team led by researchers at Sandia National Laboratories Combustion Research Facility (CRF) has demonstrated the ability to measure "real world" particulate emissions from a vehicle under actual driving conditions.
While on-board measurements of gaseous emissions are routine, real-time particulate measurements have been far more elusive, yet are essential for validating federal emissions guidelines for vehicle compliance.
Mike Janes | Sandia
Tool helps cities to plan electric bus routes, and calculate the benefits
09.01.2017 | International Institute for Applied Systems Analysis (IIASA)
Realistic training for extreme flight conditions
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On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.
On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...
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