Results 11 to 20 of about 257 (215)
Zaštita Materijala, 2019 The present study compares the performances of the regression models developed by the response surface methodology combined with the full factorial, Box-Behnken or face central composite designs applied for the ultrasound-assisted KOH-catalyzed ...
Vlada B. Veljković +2 more
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NRC Designs—New Tools for Successful Agricultural Experiments
Agronomy, 2021 In a nested row–column design (NRC), the experimental units in each of n blocks are grouped into n1 rows and n2 columns. Due to its structure, this experimental design allows full control of the experimental material and a relatively simple feedback loop
Agnieszka Łacka
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D-Optimal Designs for Binary and Weighted Linear Regression Models: One Design Variable
Mathematics, 2023 D-optimality is a well-known concept in experimental design that seeks to select an optimal set of design points to estimate the unknown parameters of a statistical model with a minimum variance.
Necla Gündüz, Bernard Torsney
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Weighted rank statistics in factorial designs with fixed effects
Statistica Neerlandica, 2002 Nonparametric methods for the analysis of factorial designs with two fixed factors are considered. The sample sizes may be unequal and the distribution functions are not assumed to be continuous. Nonparametric hypotheses for the main effects and for the interaction are tested by ranking procedures where the statistics are weighted according to the ...
Brunner, E., Domhof, S., Purwar, Rahul
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Improvement of lipase production from Geotrichum sp. in shaken flasks [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2012 This work is focused on the study of different variables on inoculum build-up aiming to improve the lipase production by Geotrichum sp. by means a sequential strategy of experimental design.
Maldonadoa Resende Rafael +5 more
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Molecules, 2021 Amylase (EC 3.2.1.1) enzyme has gained tremendous demand in various industries, including wastewater treatment, bioremediation and nano-biotechnology. This compels the availability of enzyme in greater yields that can be achieved by employing potential ...
J. N. Bandal +6 more
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Statistical optimization of dithranol-loaded solid lipid nanoparticles using factorial design [PDF]
Brazilian Journal of Pharmaceutical Sciences, 2011 This study describes a 3² full factorial experimental design to optimize the formulation of dithranol (DTH) loaded solid lipid nanoparticles (SLN) by the pre-emulsion ultrasonication method. The variables drug: lipid ratio and sonication time were studied at three levels and arranged in a 3² factorial design to study the influence on the response ...
Gambhire, Makarand Suresh +2 more
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Advances in Breeding for Mixed Cropping – Incomplete Factorials and the Producer/Associate Concept
Frontiers in Plant Science, 2021 Mixed cropping has been suggested as a resource-efficient approach to meet high produce demands while maintaining biodiversity and minimizing environmental impact.
Benedikt Haug +9 more
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Factorial design and statistical analysis of smectite clay treatment by hydrocyclone [PDF]
Cerâmica, 2018 Abstract Bentonite clays are materials composed by one or more smectite clay minerals and some accessory minerals, mainly quartz, cristobalite, mica, feldspars and other clay minerals such as kaolinite. These contaminants present in clays have a large distribution of particle sizes which severely restrict their industrial applications, with the use of ...
Gama, A. J. A. +5 more
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Comparison Between some Methods of Tackling the Lack of Experimental Units Needed for Application of Factorial Experiments [PDF]
المجلة العراقية للعلوم الاحصائية, 2011 Most of the time the researcher confronts a decrease in the experimental units required when applying a certain design, this problem appears especially when conducting the factorial experiments which mostly need great numbers of experimental units, to ...
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