Results 11 to 20 of about 10,156,002 (281)

An algorithm for generating response surface split-plot designs [PDF]

open access: yes, 2012
M.PhilIn an industrial experiment, the presence of hard-to-change factors may force the experimenter to use a split-plot type experimental structure. The corresponding Response Surface model then is a linear mixed model. Different design methodologies
Khadim, Mudakkar Mnas
core   +4 more sources

Conseqüências da análise incorreta de experimentos blocados The consequences of incorrect analysis of blocked experiments

open access: yesQuímica 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 ethanol on potato growth and production at moderate elevation

open access: yesResearch 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

Effect of packaging materials and storage environment on fennel seedling growth

open access: yesBioscience 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

open access: yesJournal 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 Paclobutrazol Concentrations in Different Shade Levels on Coleus Plant Leaves Color

open access: yesJurnal 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

Improved Split-Plot and Multistratum Designs [PDF]

open access: yesTechnometrics, 2015
Many industrial experiments involve some factors whose levels are harder to set than others. The best way to deal with these is to plan the experiment carefully as a split-plot, or more generally a multistratum, design. Several different approaches for constructing split-plot type response surface designs have been proposed in the literature since 2001,
Luzia A. Trinca, Steven G. Gilmour
openaire   +3 more sources

Effects of Process Parameters in the Production of High Density Polyethylene-Grass Composite

open access: yesJournal of Applied Sciences and Environmental Management, 2018
This study investigates the effects of process parameters in the production of high density polyethylene-grass composite; the process parameters and their interaction on the mechanical properties of the produced high density polyethylene-grass composite
DD Olodu, JO Osarenmwinda
doaj   +1 more source

RESPONS PERTUMBUHAN DAN KUALITAS BEBERAPA VARIETAS KENAF (Hibiscus cannabinus L.) TERHADAP PEMBERIAN PUPUK N DAN KOTORAN AYAM

open access: yesZiraa'ah: Majalah Ilmiah Pertanian, 2016
The reaserch was conducted to analizies the interaction of the responsibilities of varieties, N and chicken manure fertillizer, analizies of varieties treatment, analizies dosage of  N and chicken manure fertilizer to growth, yield an quality of kenaf ...
Hadi Pranoto
doaj   +1 more source

Split-plot designs for multistage experimentation [PDF]

open access: yesJournal of Applied Statistics, 2016
ABSTRACTMost of today’s complex systems and processes involve several stages through which input or the raw material has to go before the final product is obtained. Also in many cases factors at different stages interact. Therefore, a holistic approach for experimentation that considers all stages at the same time will be more efficient. However, there
Tyssedal, John Sølve, Kulahci, Murat
openaire   +2 more sources

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