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Two approaches have been applied to improve the fatigue performance of orthotropic steel decks: (1) to reduce the maximum stress range of structural components by enhancing the local stiffness through use of composite structural systems; (2) to reduce the quantity of fillet welded joints by enlarging the size of longitudinal U-shaped ribs.
We chose 500 observations because it is a reasonably large value given the size of longitudinal studies of aging around the country and the world; our results must be reasonable (replicable) by other investigators in this domain and large samples might artificially inflate the precision of estimates.
The primary limitation of the present study was the small sample size of longitudinal respondents; only 49% completed all assessments over the 12 months.
Due to the low sample size of longitudinal FC measurements, only an exploratory analysis on possible longitudinal aspects of FC and SC-FC coupling was possible.
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The Project Baseline study has been a long time in the works — it was previously slated to launch in 2015, but has evidently taken rather longer to set up; unsurprisingly so, given the scope and size of the longitudinal study.
These factors should be considered when estimating the size of future longitudinal studies.
The small size of the longitudinal track allows one to use accurate, computationally-intensive methods for calculating diffusion.
The estimation of sample size for longitudinal studies requires the expected rates of change among the exposed and unexposed, the variance of the outcome, and the correlation of measurements taken within an individual.
They also provide the basis for characterising newborn size for longitudinal studies of childhood outcomes.
The prevalence of alcohol consumption at least once a week (28.5%) and current smoking (69%) among the cleanup workers was studied in a postal questionnaire survey conducted in 1992 1993, 19 but not included in current analyses due to small cohort size and lack of longitudinal data on these factors of health behaviour.
The main purposes of this research are to specify the effect of changing the volume fraction, length, diameter and the size of nanotubes on longitudinal, transverse Young's Modulus, Poisson ratio and pull-out forces of composites.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com