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Accordingly, the reliability function and reliable lifetime function were set up, and the reliable lifetime of the connectors under the multiple environment stresses of temperature and particulate contamination could be predicted for electrical connectors.
The expected inactivity time (EIT) function (also known as the mean past lifetime function) is a well known reliability function which has application in many disciplines such as survival analysis, actuarial studies and forensic science, to name but a few.
Using such data it will be possible to simulate two scenarios: once assuming a lifetime function and the other assuming that the AVD will work only for the guaranteed function period.
Under the benchmark lifetime function, a 10% increase in the market share of used cars under benchmark average new vehicle lifetime of 11.50 years yields 16.9 million tons of CO2 reduction in the cumulated life-cycle CO2 emissions during 1993 2014.
SPP_{t,i,l} = sum_{n} left{ {UPP_{t - n,i,l} { cdot }PL_{t} left( n right)} right} (10) PL_{t} left( n right) = {text{Exp}}left{ { - {text{Ln}}left( 2right)/d} right}^{n} (11) where SPP (t) represents paper product stock volume, PL represents the paper lifetime function, and d (year) represents paper lifetime (half-life) (2 years).
Within this model, the technology stocks and flows alone are dynamically calculated with a lifetime function.
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In addition, as in Kagawa et al. (2011), I assumed that the lifetime functions for cars newly registered during 1993 2014 were all the same.
The main statistical properties of the new family are derived in Section 3 including the moments, moment generating function (mgf) and incomplete moments, quantile function (qf), random number generator, skewness and kurtosis measures, order statistics, mean deviations and average lifetime functions.
Using the specified lifetime functions of new cars, I firstly estimated the survival rate of the used cars that are newly purchased at year 0 and survive at year t after re-registration at year τ, φ u t, τ), using Eq. (3).
The probability of observing a mitotic death at time TD was given by RD = fD TD), which was the cumulative lifetime distribution function (discrete function with bin size = 2 hr) obtained from our experiments (Fig. 4A, blue lines).
In zebrafish, ErbB signaling serves several functions during the lifetime of a Schwann cell (Lyons et al., 2005; Raphael et al., 2011).
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