Normal probability plots with confidence for the residuals in linear regression

Chantarangsi, Wanpen; Liu, Wei; Bretz, Frank; Kiatsupaibul, Seksan; Hayter, Anthony J.

doi:10.1080/03610918.2016.1165840

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…In the normal probability plot the data doesn't fit a straight line and this verified that the residuals in the data were not normally distributed. In the normal probability plot of the effects, that are farther from 0 are statistically significant (Chantarangsi et al, 2016). The color and shape of the points differ between statistically significant and statistically Surface plot is a plot that shows the 3D model of contour plot.…”

Section: Optimization Of Siderophore Production and Statistical Analysis Of The Ccd (By Rsm And Anova)mentioning

confidence: 99%

Application of Response Surface Methodology for Optimization of Siderophore Production

Nimbalkar¹,

Barge²,

Marathe³

et al. 2021

IJARe

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Background: In the present study a statistical model (Response Surface Methodology) was proposed for optimization of siderophore production by using Enterobacter hormaechei.Methods: The rhizospheric soil was used for isolation and isolates were screened for siderophore production by chrome-azurol S (CAS) assay. One potent isolate producing maximum siderophore was selected and characterized by 16S rRNA gene sequencing. The culture conditions were optimized for maximum siderophore production by using Central Composite Design. The response surface curves were used to predict the optimum levels of the factors affecting the yield of siderophore. Result: By using rhizospheric soil,eight isolates were obtained and one potent organism was identified as Enterobacter hormaechei subsp. oharae (Accession No. MT 775835) by BLAST. The maximum siderophore production (98%) was obtained in succinate medium and the optimum values of variables were found as pH 7, time 60 hrs, temp. 28°C and succinic acid conc. 0.40%. RSM was used to analyze the data by developing 3D surface plots and the residuals plots. ANOVA was used to determine regression coefficients.

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Section: Optimization Of Siderophore Production and Statistical Analysis Of The Ccd (By Rsm And Anova)mentioning

confidence: 99%

Application of Response Surface Methodology for Optimization of Siderophore Production

Nimbalkar¹,

Barge²,

Marathe³

et al. 2021

IJARe

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show abstract

“…The normal probability plot shows the distribution of the residual value, which is defined as the difference between the predicted (model) and observed (experimental) values. From the normal probability plot, the population is claimed not to be normally distributed if, and only if, the n points do not fall close to a straight line [63].…”

Section: Simplex Lattice Design-model Establishmentmentioning

confidence: 99%

Combination of Coagulation–Flocculation–Decantation and Ozonation Processes for Winery Wastewater Treatment

Jorge

Teixeira

Matos

et al. 2021

IJERPH

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This research assessed a novel treatment process of winery wastewater, through the application of a chemical-based process aiming to decrease the high organic carbon content, which represents a difficulty for wastewater treatment plants and a public health problem. Firstly, a coagulation–flocculation–decantation process (CFD process) was optimized by a simplex lattice design. Afterwards, the efficiency of a UV-C/ferrous iron/ozone system was assessed for organic carbon removal in winery wastewater. This system was applied alone and in combination with the CFD process (as a pre- and post-treatment). The coagulation–flocculation–decantation process, with a mixture of 0.48 g/L potassium caseinate and 0.52 g/L bentonite at pH 4.0, achieved 98.3, 97.6, and 87.8% removals of turbidity, total suspended solids, and total polyphenols, respectively. For the ozonation process, the required pH and ferrous iron concentration (Fe2+) were crucial variables in treatment optimization. With the application of the best operational conditions (pH = 4.0, [Fe2+] = 1.0 mM), the UV-C/ferrous iron/ozone system achieved 63.2% total organic carbon (TOC) removal and an energy consumption of 1843 kWh∙m−3∙order−1. The combination of CFD and ozonation processes increased the TOC removal to 66.1 and 65.5%, respectively, for the ozone/ferrous iron/UV-C/CFD and CFD/ozone/ferrous iron/UV-C systems. In addition, the germination index of several seeds was assessed and excellent values (>80%) were observed, which revealed the reduction in phytotoxicity. In conclusion, the combination of CFD and UV-C/ferrous iron/ozone processes is efficient for WW treatment.

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Ultrasound-assisted facile synthesis of a new tantalum(V) metal-organic framework nanostructure: Design, characterization, systematic study, and CO 2 adsorption performance

Sargazi

Afzali

Mostafavi

et al. 2017

Journal of Solid State Chemistry

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Normal probability plots with confidence for the residuals in linear regression

Cited by 4 publications

References 16 publications

Application of Response Surface Methodology for Optimization of Siderophore Production

Application of Response Surface Methodology for Optimization of Siderophore Production

Combination of Coagulation–Flocculation–Decantation and Ozonation Processes for Winery Wastewater Treatment

Ultrasound-assisted facile synthesis of a new tantalum(V) metal-organic framework nanostructure: Design, characterization, systematic study, and CO 2 adsorption performance

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