Volatile products are desorbed from the sample, ionized by the electron beam, separated by a mass-analyzer, and brought to a detector.
After training the laser on a solid block of boron nitride, a team of physicists at the University of Michigan, Ann Arbor, led by Peter Pronko and John Nees learned that the beam separates two boron isotopes by generating a miniature electrical and magnetic storm.
A comprehensive model of an electrostatically actuated microcantilever beam separated from the ground plane by relatively larger gap is formulated accounting for the nonlinearities of the system arising out of electric forces, geometry of the deflected beam and the inertial terms.
No synchronization was observed in pairs of PCs on the same parallel fiber beam separated by more than 0.5 mm (n = 20, data not shown).
Standing inside an apartment, you should feel as though you are on a construction site, with nothing but steel beams separating you from the throbbing, glamorous city.
Exposed beams separate the living room from the kitchen, which has a wooden table, an old sideboard and a dishwasher that, like the family washing machine, was found on the street.
It can be seen that all plain concrete beams exhibit almost linear-elastic behaviour up to the peak load, followed by a sudden drop in load, upon which the beams separated into two parts.
Animals were placed in one of the four activity boxes (40×40×40 cm) and horizontal and vertical activities were measured by disruption of infrared beams separated by 2.5 cm that cross the x y plane at two z-levels.
Simultaneous interruptions of two or more consecutive beams separated by at least one second were recorded as a movement score.
Simultaneous interruptions of two or more consecutive beams separated by at least 1 sec were recorded as a movement.
