Results 11 to 20 of about 641,965 (315)
Practical inference from industrial split-plot designs. [PDF]
Journal of Quality Technology, 2002 Many industrial response surface experiments are deliberately not conducted in a completely randomized fashion. This is because some of the factors investigated in the experiment are hard to change.
Goos, Peter +2 more
core +5 more sources
Split-Plot Designs with Few Whole Plot Factors Containing Clear Effects
Fractal and Fractional, 2022 Fractional factorial split-plot designs are widely used when it is impractical to perform fractional factorial experiments in a completely random order.
Yuna Zhao
doaj +1 more source
Acta Technologica Agriculturae, 2023 This research aims to study the effect of the number of harvest rows under two digging depths and cultivars on the quality of harvesting potatoes (damage and losses). The experiment was factorial, using a randomised complete block design with split-split
Tofeq Othman M. M.
doaj +1 more source
D-OPTIMAL DESIGNS FOR SPLIT-PLOT MIXTURE PROCESS VARIABLE DESIGNS OF THE STEEL SLAG EXPERIMENT
Barekeng, 2022 The nature of the steel slag concrete experiment followed a mixture process variable (MPV) design. In this study, the concrete is composed of five mixture components, cement, fine aggregate, coarse aggregate, percentage steel slag replaced the fine ...
Faula Arina +3 more
doaj +1 more source
Química Nova, 2007 Errors are always present in experimental measurements so, it is important to identify them and understand how they affect the results of experiments. Statistics suggest that the execution of experiments should follow random order, but unfortunately the ...
João Alexandre Bortoloti +1 more
doaj +1 more source
The Effect of Paclobutrazol Concentrations in Different Shade Levels on Coleus Plant Leaves Color
Jurnal Teknik Pertanian Lampung, 2022 Coleus scutellarioides is a leaf ornamental plant that is widely used as an ornamental plant in tourist attractions because it has an interesting leaf color.
Maretha Widhya Aulyaa Gusmawan +2 more
doaj +1 more source
Split-plot designs: What, why, and how [PDF]
, 2009 The past decade has seen rapid advances in the development of new methods for the design and analysis of split-plot experiments. Unfortunately, the value of these designs for industrial experimentation has not been fully appreciated.
Bradley Jones, Christopher J. Nachtsheim
core +1 more source
Effect of packaging materials and storage environment on fennel seedling growth
Bioscience Journal, 2019 The objective of the present study was to assess the influence of the packaging material (cotton cloth bag, multifolium paper and glass container) and storage environment (laboratory and cold chamber conditions) on fennel seedling growth.
Raquel Fialho Rubim +4 more
doaj +3 more sources
Split-Plot Central Composite Designs Robust to a Pair of Missing Observations
Journal of Applied Sciences and Environmental Management, 2018 This study constructs robust split-plot central composite designs against missing pairs of observations. Split-plot central composite designs (CCD) consist of factorial (f), whole-plot axial (α), subplot axial (β), and center (c) points. A loss function
Y. Yakubu, AU Chukwu
doaj +1 more source
The effect of ethanol on potato growth and production at moderate elevation
Research in Agricultural Engineering, 2022 Indonesia's current potato cultivation areas are mainly in the highlands (1 000 m above sea level - a.s.l.). However, there are obstacles to potato cultivation in the highlands, including erosion, declining land productivity, limited area, and high ...
Andi Muhibuddin +5 more
doaj +1 more source