Results 11 to 20 of about 198,147 (243)

Prediction of Hydrogel Degradation Time Based on Central Composite Design [PDF]

open access: yesACS Omega, 2023
In this study, a self-degrading hydrogel was formed by free-radical-initiated copolymerization, which can be used for oil and gas well strip pressure operations. Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H NMR), scanning electron microscopy (SEM), and thermogravimetry-mass spectrometry (TGA-MS) were used to study the ...
Ying Wang   +5 more
openaire   +5 more sources

Optimization of fast disintegration tablets using pullulan as diluent by central composite experimental design

open access: yesJournal of Pharmacy and Bioallied Sciences, 2012
The objective of this work was to apply central composite experimental design to investigate main and interaction effect of formulation parameters in optimizing novel fast disintegration tablets formulation using pullulan as diluents.
Dipil Patel   +3 more
doaj   +1 more source

Electricity Generation with the Novel 3D Electrode from Swim Wastewater in a Dual-chamber Microbial Fuel Cell

open access: yesMATEC Web of Conferences, 2016
The swine wastewater has the characteristics of high concentration of organic matter, suspended solids and more high ammonia nitrogen, odor, complex pollution ingredient and large emissions. Microbial fuel cells (MFC) is an electrochemical and biological
Lai Mei-Feng   +3 more
doaj   +1 more source

Some Optimality Variations of Central Composite Designs [PDF]

open access: yesAcademic Journal of Applied Mathematical Sciences, 2019
Some variations of central composite designs (CCD) under complete and partial replications of cube, axial and center points are studied using A, D and G optimality criteria. The results obtained suggest that complete replication of the cube, axial and center points are better than the partial replication of cube, axial and center points under the A and
Lilian O. Ngonadi, F. C. Eze
openaire   +1 more source

On the robustness of central composite designs when missing two observations

open access: yesQuality and Reliability Engineering International, 2023
AbstractQuite often, many situations arise in experimental work where some experimental runs that may not be feasible because of certain circumstances or existing constraints in the system under investigation. A lot of work has been done in studying classical designs, such as the central composite designs (CCDs), with missing observations.
Kareem Alanazi   +2 more
openaire   +1 more source

Screening and optimization of extracellular pectinase produced by Bacillus thuringiensis SH7

open access: yesOpen Chemistry, 2023
The objective of the current research was to identify and evaluate the possibility of production of pectinase, also known as pectin degrading enzymes, from indigenous bacterial strains.
Umar Maria   +9 more
doaj   +1 more source

OPTIMISATION OF Bacillus amyloliquefaciens FE-K1 EXTRACELLULAR PEPTIDASE PRODUCTION BY RESPONSE SURFACE METHODOLOGY

open access: yesTrakya University Journal of Natural Sciences, 2018
In this study, it was aimed to optimise the extracellular peptidase production of Bacillus amyloliquefaciens FE-K1, previously isolated from ropy wholemeal bread, by using response surface methodology (RSM) based on central composite design (CCD).
Fundagül EREM   +2 more
doaj   +5 more sources

Optimisation of Vitamin B12 Extraction from Green Edible Seaweed (Ulva lactuca) by Applying the Central Composite Design

open access: yesMolecules, 2022
Vitamin B12, only found naturally in animal-based foods, is essential for brain functions and various chemical reactions in the human body. Insufficient vitamin B12 leads to vitamin B12 deficiency, common among strict vegetarians due to their limited ...
Deny Susanti   +6 more
doaj   +1 more source

Nanoformulation Development to Improve the Biopharmaceutical Properties of Fisetin Using Design of Experiment Approach

open access: yesMolecules, 2021
This study aimed to design an effective nanoparticle-based carrier for the oral delivery of fisetin (FST) with improved biopharmaceutical properties. FST-loaded nanoparticles were prepared with polyvinyl alcohol (PVA) and poly(lactic-co-glycolic acid ...
Wan-Yi Liu   +3 more
doaj   +1 more source

Development of Effervescent-assisted Liquid Phase Microextraction using 1-dodecanol for Determination of Ketoprofen Drug in Water

open access: yesASM Science Journal, 2020
A rapid and straightforward method based on effervescent-assisted dispersive liquid-liquid microextraction combined with high-performance liquid chromatography-ultraviolet (HPLC-UV) detection for preconcentration of ketoprofen in water samples was ...
Wan Mohd Afiq Wan Mohd Khalik
doaj   +1 more source

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