Results 281 to 290 of about 500,559 (337)

A numerical and experimental study of light obscuration in laparoscopy. [PDF]

open access: yesBMC Surg
Najafabadi HH   +5 more
europepmc   +1 more source

Phosphorescence as an exponential decay

The Physics Teacher, 2021
Phosphorescence is always an engaging demonstration. A high-energy photon source, such as a violet laser or UV black light, shines on a phosphor (screen, mineral, toy, etc.) and then the light is reemitted slowly at a color of lower energy. We notice that the intensity of the emitted light dims with time.
openaire   +1 more source

Exponential Decay With a Memory

American Journal of Physics, 1972
We examine the exponential decay law for an excited quantum system in the case where the state amplitude has a “memory,” that is, where the rate at which the amplitude is decaying at a particular time depends to some extent on values of the amplitude at previous times.
R. T. Robiscoe, J. C. Hermanson
openaire   +1 more source

Exponential tooth decay curve.

Community dental health, 2019
A review of the distribution of d₃mft scores for Wales was undertaken to inform decisions on future reporting of decay experience. Visual examination of data from one survey suggested that caries in Wales is distributed along an exponential decay curve.Weighted d₃mft data from 2007/8, 2011/12 and 2014/15 was utilised.
openaire   +2 more sources

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