Sentences with phrase «occur in a given amount of time»

Luminosity is an essential indicator of the performance of an accelerator, measuring the potential number of collisions that can occur in a given amount of time.

Not exact matches

«Because of the amount of time kids spend in school, and given the fact that many first - time allergic reactions occur on school grounds, it is imperative for school districts across the country to provide access to emergency epinephrine to students who may not otherwise have access to the potentially life - saving medication,» Gupta said.

Susan Anderson's NYT link: «The flooding in Louisiana is the eighth event since May of last year in which the amount of rainfall in an area in a specified window of time matches or exceeds the NOAA predictions for an amount of precipitation that will occur once every five hundred years, or has a 0.2 percent chance of occurring in any given year.»

The details on a molecular level determine how likely a given transition is likely to occur — in other words, the fraction of photons of some frequency, polarization, and direction, that are absorbed over some path through an amount of material, and the number of photons of the same type which are emitted per unit time.

Given evolution over the past 500 million years when virtually all modern emerged and radiated largely occurred while the planet had no polar ice caps and atmospheric CO2 up to ten times current level, and the planet was green from pole to pole, and life did so well it was able to sequester huge amounts of energy in fossil fuel beds.

Within economics modelling, attempts to model the feedback mechanisms that occur in the real economy are also really difficult — we know, for example, that investment in new technologies will act as an incentive for the existing technologies it hopes to substitute to become more efficient (the sailing ship effect — i.e. in the 50 years after the introduction of the steam ship, sailing ships made more efficiency improvements than they had in the previous 3 centuries) but how to quantify something even as simple as this is not easy BUT we have learnt a few ways to give sensible (order of magnitude) figures with time lags, the learning by doing effect and phased - in substitution effects based on massive amounts of data.