Sentences with phrase «in ion mobility»
In addition, the considerable variation in the interface tension followed by a steep increase in ion mobility also contribute to instability.
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The TSA plans to continue using the portals already installed in airports; right now, they are the best and most practical explosive - detection devices available, says Herbert Hill, a chemist at Washington State University and a pioneer in the field of ion - mobility spectrometry.
Either the increased concentration of free calcium ions or their increased mobility (likely both, the researchers speculate) results in a decrease in the electrical resistance throughout the material, which can be detected with a multimeter connected to electrodes embedded in the film.
Together with Persson, Berkeley Lab scientist Gerbrand Ceder, postdoctoral associate Miao Liu, and MIT graduate student Ziqin Rong, the Materials Project team investigated some of the more promising materials in detail for high multivalent ion mobility, which is the most difficult property to achieve in these cathodes.
Necessary inputs include equilibrium potentials, exchange current densities and transfer coefficients for the various interfacial reactions; dielectric properties of electrolytes and electrodes; mobilities of ions and electrons / holes in electrodes and electrolytes; and reaction rate constants of bulk processes (e.g., electron / hole recombination).
Hill has been an innovator in the field of ion mobility for nearly 40 years.
By combining ion mobility rates with weight readings from a mass spectrometer, Hill can identify molecules in a much more comprehensive way.
Thus, the future of urban mobility is powered by a 288 - cell, 60 - kWh lithium - ion battery pack developed in partnership with LG Chem, feeding a single - motor electrical drive, rated at 200 hp and 266 lb - ft.