Results 1 to 10 of about 7,017 (111)

Split-Plot Designs with Few Whole Plot Factors Containing Clear Effects

open access: yesFractal 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

Minimum Aberration Split-Plot Designs Focusing on the Whole Plot Factors

open access: yesMathematics, 2022
In some experiments, the levels of some factors are difficult to change; then fractional factorial split-plot (FFSP) designs are suitable for selection.
Minyang Hu, Shengli Zhao
doaj   +1 more source

Estimation of Optimum Plot Size in Split-Split Plot Design Used in Field Experiment [PDF]

open access: yesThe Egyptian Statistical Journal, 1999
Estimates of soil heterogeneity are obtained from Split-Split plot design. A weighted regression analysis method is used to determine the soil heterogeneity from the analysis of variance technique of the above design.
Saiful Islam   +3 more
doaj   +1 more source

Characterization and split-split-plot analysis of steamed factors affecting the swimming crab (Portunus trituberculatus) flavor quality

open access: yesFood Chemistry Advances, 2023
Swimming crab (Portunus trituberculatus) is a kind of popular crab for being rich in nutrition and intense in flavor. The time and heat exposure cause differences in flavor during steaming, dramatically affecting first impression and acceptability.
Qi Lu   +4 more
doaj   +1 more source

Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice

open access: yesAgronomy, 2021
Nitrogen (N) response studies in rice (Oryza sativa L.) are conducted to provide grower recommendations with economically optimum N rates (EONRs). This study was conducted to determine if experimental design alters the predicted EONR for rice.
Richard Lee Atwill   +7 more
doaj   +1 more source

Testing Sub-hypotheses in Whole Plot Covariates in Non-Replicated Two-Way Split Plot Experiments [PDF]

open access: yesThe Egyptian Statistical Journal, 2000
The problem of analyzing a whole plot covariate in non-replicated two-way split plot experiments is considered. A test procedure is given that will enable the data analyst to determine subareas of the data in which the data are additive. The procedure is
S. Mira
doaj   +1 more source

Construction of Optimal Split-Plot Designs for Various Design Scenarios

open access: yesFractal and Fractional, 2022
When performing fractional factorial experiments in a completely random order is impractical, fractional factorial split-plot designs are suitable options as an alternative. It is well recognized that the more there are lower order effects of interest at
Beichen Han, Yuna Zhao
doaj   +1 more source

Study of the Effect of Potato Lifter Line on Some Properties at Different Depths and Varieties of Potato Crop

open access: yesActa 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

Effect of different irrigation intervals on superior poplar clones yield [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2012
Various poplar varieties have different needs and requirements and different water supply and intervals can change their growth conditions, significantly.
Reza Bagheri   +3 more
doaj   +1 more source

Analysis of Combined Data for a Series of Similar Experiments [PDF]

open access: yesThe Egyptian Statistical Journal, 1992
Many agricultural experiments are conducted at more than one location and for several years. There is no standard reference which provides all of the details necessary for combining analysis of experiments with more than one factor. The objective of this
A.H. El-Attar
doaj   +1 more source

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