This manuscript addresses the EM algorithm developed in Halpin & De Boeck (in press). The runtime of the algorithm grows quadratically in the number of observations, making its application to large data sets impractical. A strategy for improving efficiency is introduced, and this results in linear growth for many applications. The performance of the modified algorithm is assessed using data sim...

Abstract Interfacial degradation is the main reason for deterioration of mechanical properties composites in hydrothermal environments. In this study, effect interphase on water diffusion two types unidirectional continuous carbon fiber-reinforced polyamide 6 (CF/PA6) investigated through experimental measurements, theoretical analysis, and numerical simulation. The moisture coefficient composi...

the free vibration of the lattice cylindrical composite shell reinforced with carbon nano-tubes (cnts) was studied in this study. the theoretical formulations are based on the first-order shear deformation theory (fsdt) and then by enforcing the galerkin method, natural frequencies are obtained. in order to estimate the material properties of the reinforced polymer with nano-tubes, the modified...

in the present study, modelling and vibration analysis of carbon nanotubes/ fiber/ polymer composite microplates are investigated. the governing equations of the carbon nanotubes/ fiber/ polymer composite microplates are derived based on first order shear deformation plate theory, rather than other plate theories, due to accuracy and simplicity of polynomial functions. the modified couple stres...

We have used liquid exfoliation of hexagonal Boron-Nitride (BN) to prepare composites of BN nanosheets of three different sizes in polyvinylchloride matrices. These composites show low levels of reinforcement, consistent with poor alignment of the nanosheets as-described by a modified version of Halpin-Tsai theory. However, drawing of the composites to 300% strain results in a considerable incr...

Polyvinyl alcohol (PVA)-stabilized graphene nanosheets (GNS) of lateral dimension (L) ~1 μm are obtained via liquid phase exfoliation technique to prepare its composites in the PVA matrix. These composites show low levels of reinforcements due to poor alignment of GNS within the matrix as predicted by the modified Halpin-Tsai model. Drawing these composites up to 200 % strain, a significant imp...

The Halpin-Tsai equations are based upon the “selfconsistent micromechanics method” developed by Hill. Hermans eniplovetf this model to obtain a solution in terms of Hill’s “reduced moduli”. Halpin and ’Tsai have reduced Hernians’ solution to a simpler analytical form arid extended its use for a variety of filament geometries. The development of these niicromechanics relationships, which form t...

Volume 5, no. 29, e00375-17, 2017, https://doi.org/10.1128/genomeA.00375-17. Page 1; line 22: “was found within the pNPD4_2 plasmid” should read “was found within the chromosome.” Published 21 September 2017 Citation Halpin JL, Hill K, Johnson SL, Bruce DC, Shirey TB, Dykes JK, Lúquez C. 2017. Erratum for Halpin et al., “Finished whole-genome sequences of Clostridium butyricum toxin subtype E4 ...