Results 211 to 220 of about 6,825,486 (291)

Optimization of tray inventory levels in hospitals from an integral perspective. [PDF]

open access: yesHealth Care Manag Sci
Bos H   +4 more
europepmc   +1 more source

Lognormal distributions capture site-specific variability in enteric virus concentrations in wastewater.

open access: yesEnviron Sci (Camb)
Li C   +7 more
europepmc   +1 more source

Approximating Lognormal Sum Distributions With Power Lognormal Distributions

IEEE Transactions on Vehicular Technology, 2008
In wireless communications, cochannel interference is usually characterized by a sum of lognormal random variables. Since the characteristic function of a lognormal distribution lacks explicit expression, and numerical calculation of a lognormal sum distribution is very challenging, lognormal distributions are often used to approximate lognormal sum ...
R Mcgorman, J Almhana
exaly   +2 more sources

An Optimal Lognormal Approximation to Lognormal Sum Distributions

IEEE Transactions on Vehicular Technology, 2004
Sums of lognormal random variables occur in many problems in wireless communications because signal shadowing is well modeled by the lognormal distribution. The lognormal sum distribution is not known in the closed form and is difficult to compute numerically.
Norman C. Beaulieu, Qiong Xie
exaly   +2 more sources

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