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
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10.08.2017 | Florida Atlantic University
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
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