Results 211 to 220 of about 20,277 (256)

pH-driven spontaneous recovery of tyrosine <i>via</i> co-precipitation in the indirect aqueous carbonation of gypsum. [PDF]

RSC Adv
Qu Y, Gong Y, Wu B, Li C, Wang L, Wang Y.   +5 more
europepmc   +1 more source

Hierarchical on-surface assembly of nanoribbons through concurrent hydrogen- and chalcogen-bonding interactions. [PDF]

Chem Sci
Caporale A, Persichetti L, Anselmi G, Gildo JL, Hogan C, Romito D, Bonifazi D, Camilli L.   +7 more
europepmc   +1 more source

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

Health Care Manag Sci
Bos H, Hosteins G, Wijnholds W, Braaksma A, Leeftink G.   +4 more
europepmc   +1 more source

Extensions of multinomial processing tree models for continuous variables: A simulation study comparing parametric and non-parametric approaches. [PDF]

Behav Res Methods
Gutkin A, Heck DW.
europepmc   +1 more source

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

Environ Sci (Camb)
Li C, Kohn T, Torii S, Wynn HK, Devaux AJ, Gan C, Julian TR, Sylvestre É.   +7 more
europepmc   +1 more source

Quantitative interferon gamma responses to Mycobacterium tuberculosis in a community-based survey of adolescents and adults in Blantyre, Malawi

Phiri MD, Rickman HM, Mandalasi C, Chirambo A, Jambo KC, Mwandumba HC, Corbett EL, Horton KC, Henrion MY, MacPherson P.   +9 more
europepmc   +1 more source

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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   +3 more sources

Mixture Lognormal Approximations to Lognormal Sum Distributions

IEEE Communications Letters, 2007
In wireless communication, co-channel interference is usually characterized by a sum of lognormal random variables. Since calculating the exact distribution of a lognormal sum has a lot of challenges, lognormal distributions are often used to approximate lognormal sum distributions.
R Mcgorman, J Almhana
exaly   +3 more sources