Table 4: Mixed-effects regression for the factorial experiment
The proposed approach consists of five steps, as follows: (i) specification of the characteristic performance of concrete, (ii) selection of the levels of key mix design factors, (iii) experimental work considering trial mixtures using full factorial experiment
design for generating data to obtain statistical model for optimization, (iv) statistical analysis of experimental data and fitting of the strength model, and (v) optimization of mixture proportions using the fitted strength model.
Experimental data of percentage of degraded grease after 3 days (mean values of 2 repeated factorial experiments
) and the statistical model predictions are given in Table 3.
For both geotextiles a matrix of a full factorial experiment
is written (Table 2).
can be carried out in a completely randomised design, in randomised blocks, or in a more complex design.
Construction of px3x2 Asymmetrical Factorial Experiment
in blocks of 6 plots with (p-1) replications:
In a fully orthogonal factorial experiment
, embryos were exposed to one of 6 salinity levels (10 ppt, 15 ppt, 20 ppt, 25 ppt, 30 ppt, or 35 ppt) at each of one of 12 temperature levels (16[degrees]C, 18[degrees]C, 20[degrees]C, 21[degrees]C, 22[degrees]C, 23[degrees]C, 24[degrees]C, 25[degrees]C, 26[degrees]C, 27[degrees]C, 28[degrees]C, or 30[degrees]C).
The statistically designed factorial experiment
was considered to be the best method of finding the optimum formulation of the hybrid dispersion to be used as precursors for siloxane-containing polymer matrices.
The selection was also organized in a set of partial factorial experiment
to lessen the time and effort involved.
Consider a basic two-level factorial experiment
: The number of runs doubles every time another factor is added.
This article reports the results of a factorial experiment
that investigated the reactions of male and female students to a hypothetical English course offered at the community college level.
The fractional factorial design is a selected subset of the full factorial experiment
that preserves many of its useful properties.
This paper reports the results of a factorial experiment
investigating the reactions of male students to a hypothetical English course offered at the community college level.
Field data were analyzed with PROC MIXED in SAS ([alpha] = 0.1; SAS Institute, 1999) appropriate for a factorial experiment
conducted in a randomized block over two growing seasons.