نتایج جستجو برای: central composite design

تعداد نتایج: 1500802  

2012
Zaira Zaman Chowdhury Mohd. Zain Rashid Atta Khan Arash Arami-Niya

In this study, powdered activated carbon (PAC) was produced from agricultural waste biomass of kenaf (Hibiscus cannabinus L.) core or stalk, and the process variables were optimized by applying central composite design (CCD). The influences of carbonization temperature, duration of activation, and impregnation ratio on removal percentage of copper Cu(II) ions from aqueous solution and carbon yi...

2014
N. N. El-Ibiari

The goal of this study is to reduce the production cost of biodiesel, so we used non edible oil (castor seeds oil) which has a unique structure; suitable for biodiesel production and has lower cost compared to other biodiesel from other vegetable oils. Reactive extraction via ultrasonicassisted process was used offering the potential for shorter reaction times, cheaper reagents and less insigni...

In this study, a Darrieus hydraulic turbine for power generation applications is chosen and the response surface methodology (RSM) based on central composite design (CCD) is applied to obtain the optimized design for its hydrofoil geometry to increase the torque coefficient. For this aim, all turbine performance factors, except hydrofoil geometry, were considered to be constant and the turbine ...

2003
Gabriela A. Macedo Gláucia M. Pastore Maria I. Rodrigues

The catalytic action of two non commercial lipases (E.C. 3.1.1.3) in the synthesis of isoamyl acetate in a solvent-free system, were tested using an experimental design in order to better understand the relationship between the reaction variables. Yields ranging from 67 to 77 % molar conversion were achieved. The synthesis of isoamyl acetate catalyzed by the chosen lipase (Rhizopus sp.) was opt...

2005
Li Liang

Complete randomization in many industrial and agricultural experiments is frequently impractical due to constraints in time, cost or existence of one or more hard-to-change factors. In these situations, restrictions on randomization lead to split-plot designs (SPD), allowing certain factor levels to be randomly applied to the whole plot units and remaining factor levels randomly to the subplot ...

2010
Cristian J. B. de Lima Luciana F. Coelho Jonas Contiero

Two response surface methodologies involving central composite designs have been successfully applied to evaluate the effect of cheese whey, corn steep liquor, ammonium sulphate, temperature and pH control on lactic acid fermentation by Lactobacillus sp. LMI8 isolated from cassava flour wastewater. In the first central composite design, corn steep liquor and ammonium sulphate were investigated ...

Journal: :Advances in pharmacology and pharmacy 2022

Aim: The aim of the work was to explore mucoadhesive properties Mastic gum by involving it in microspheres with Amoxicillin Trihydrate as a model drug. Using Carbopol-934P and varying amounts gum. Methods: 9 interpretations were made using Design expert software. A central composite design applied test impact independent variables (Carbopol-934P mastic levels) on drug released at 10h strength r...

Journal: :ACM SIGPLAN Notices 1997

Journal: :Pharmacognosy Research 2022

Pharmacognosy Research,2022,14,4,405-411.DOI:10.5530/pres.14.4.59Published:October 2022Type:Original ArticleAuthors:Sarika Ankushrao Nikam, and Shilpa Pravin Chaudhari Author(s) affiliations:Sarika Nikam*, Department of Pharmaceutics, Dr. D.Y. Patil College Pharmacy, Akurdi, Pune, Maharashtra, INDIA Abstract:Background: Plant extracts contain a considerable amount polyphenols. These polyphenols...

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