Central composite design
Enhancing inulinase yield by irradiation mutation associated with optimization of culture conditions
... which means that the decrease in solution volume and the increase in concentrations of JAP and peptone can exert positive effect on inulinase production. The path of the steepest ascent was used to search for the proper ...
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The Method of Optimizing the Drying Process of an Oak Blank in a Radiofrequency Electromagnetic Field
... Abstract - This paper presents some aspects concerning the modeling of heating some moving oak blanks in a radiofrequency electromagnetic field, which has been coupled with an optimization method based on a statistical ...
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Drying of banana paste in rotatory dryer with inert bed Secagem de pasta de banana em secador rotativo com recheio de inertes
... experimental design (central composite design) was used for the final drying experiments with the following variables: the drying time and the mass of paste fed into the dryer, and as ...
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Determination of ambroxol in syrups using diffuse reflectance spectroscopy
... experimental design, inclu- ding two kinds of designs: the factorial design to evaluate which of the variables were significant factors and the central composite design, to obtain the ...
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RESPONSE SURFACE METHODOLOGY OF NITRILASE PRODUCTION BY RECOMBINANT ESCHERICHIA COLI
... factorial design are important tools to study the effect of both the primary factors and their mutual interactions (5, ...14). Central composite design (CCD) is a well established, widely used ...
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EVALUATION OF THE COMPOSITION OF CULTURE MEDIUM FOR YEAST BIOMASS PRODUCTION USING RAW GLYCEROL FROM BIODIESEL SYNTHESIS
... 3 central composite design, a total of 11 trials (three replicates at the central point), was performed with the variables: initial pH, concentrations of glycerol and yeast ...
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Concentration and Incident Light Intensity on Nannochloropsis oculata Lipid Accumulation
... A central composite design (divided into two blocks) was performed to evaluate the effects of temperature, sodium nitrate concentration in the f/2 medium and incident light intensity on final biomass ...
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Densification and volumetric change during supersolidus liquid phase sintering of prealloyed brass Cu28Zn powder: Modeling and optimization
... In recent years numerous researchers have been used design of experiments (DOE) to analyze and model the powder metallurgy technique key parameters. C. H. Ji et al. [21] investigated the effect of sintering ...
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Combined enzymatic and physical deinking methodology for efficient eco-friendly recycling of old newsprint.
... Central composite design with three factors - pH, enzyme dose and incubation time at five levels was employed to investigate the first and higher order main effects of each factor and interaction ...
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BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
... The objective of this work was to evaluate the effect of DON and T-2 toxin levels on the malt amylase activity. The malt was contaminated in accordance with central composite design experiment with ...
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J. Braz. Chem. Soc. vol.28 número4
... a central composite design was used to optimize the levels of these ...this design was made up of a central composite design with four cube points; that is, a point for ...
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Planejamentos experimentais para a otimização da resposta voltamétrica na determinação do herbicida glifosato em solo, água e vegetais
... Nesta etapa, após avaliação dos efeitos, as variáveis selecionadas para o estudo da superfície de resposta, que empregou o planejamento CCD- central composite design , para a voltamet[r] ...
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Antioxidant activity of thyme waste extract in O/W emulsions
... Central composite design (CCD) of the central response surface methodology (RSM) was used to study the effect of four independent variables in different combinations, X1 (BHA concentration %), ...
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J. Braz. Chem. Soc. vol.24 número11
... An interactive computer method is proposed for the electrophoretic separation of 13 phenolic compounds from extra-virgin olive oil using single peak response values. A central composite design was ...
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Growth of Microalgae Scenedesmus sp in Ethanol Vinasse
... factorial design study showed that the use of 50% vinasse in the culture medium resulted in a smaller amount of microalgae biomass; the Central Composite Design demonstrated that it was ...
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SIMULTANEOUS ENZYMATIC HYDROLYSIS AND LACTIC FERMENTATION TO OBTAIN A YOGURT WITH LOW LACTOSE CONTENT
... In a single-stage process with the simultaneous addition of β -galactosidase and lactic culture, the lactose conversion, the processing time, viscosity and syneresis were evaluated. Fermentation was promoted by lactic ...
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Effects of design parameters on damping of composite materials for aeronautical applications
... A field output was created to extract the displacement of the beam for further evaluation in frequency domain and to characterize the influence of using cork as embedded viscoelastic material in the dynamic response. ...
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eve asholanda Optimization of Laminated Tubes Using Finite Element Analysis
... weight design of laminated ...The design variables are the number of plies and the thickness and fiber orientation of each ply on the half of the ...
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Lat. Am. j. solids struct. vol.8 número4
... The design of the optimal sequence of layers in laminated composite materials is a problem of global minimum. Due to the stochastic characteristics of GAs, they are more suitable to optimize than ...
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J. Braz. Soc. Mech. Sci. & Eng. vol.31 número3
... optimal design of laminated ...the design variables, laminate symmetry and balance, and a maximum number of contiguous plies (this last restriction is often used to prevent matrix ...
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