With lifetimes measured in decades, they are a clear improvement over incandescent bulbs.
All mesons are unstable, with lifetimes ranging from 10−8 second to less than 10−22 second.
The traditional choice has been the Black-Scholes formula, but it applies to options that are freely traded on organized exchanges with lifetimes of a few months.
This company has produced commercially blue and green LED and announced the production of continuous-wave room temperature blue laser diodes with lifetimes longer than 10,000 hours.
All three have impressive credentials; indeed, with lifetimes of writing and client advocacy behind them, Republicans could doubtless find some ground to object to any one of them.
We overview different experimental methods that can be used to investigate intermediates with lifetimes in the range from hundreds of picoseconds to hundreds of microseconds.
Fitting of the fluorescence decay data using the method of least squares revealed three emitting components with lifetimes of approximately 0.60, 4.00, and 370 ns.
Tourist statistics were far from the thoughts of the athletes, however, people who, in the well-rehearsed words of a local paper, came with "lifetimes of championship dreams" and years of dedicated training behind them.
The three remaining floors were carved decades ago into veritable warrens of cubicles linked by corridors of peeling checkerboard linoleum, stuffed to the brim and beyond with lifetimes of musty, precious possessions.
Here is a sad reflection for the ordinary reader, faced as he is with lifetimes upon lifetimes worth of books on entering even a small public library or a reasonably well-stocked bookshop.
Under the influence of these forces it is found that dust grains (under the appropriate conditions) can be injected into orbits with lifetimes in excess of one year.
