Results 31 to 40 of about 9,510 (198)

Use of rice husk ash as a supplementary cementitious material in concrete mix for road pavements

Journal of Materials Research and Technology, 2023
The present research analyzes the feasibility of using Rice Husk Ash (RHA) obtained as a residue from an industrial process as Supplementary Cementitious Materials (SCM) in a concrete pavement mix that meets the minimum requirements for a medium traffic ...
Nelson R. Camargo-Pérez, Joaquín Abellán-García, Luis Fuentes   +2 more
doaj   +1 more source

Use of multivariate experimental designs for optimizing the reductive degradation of an azo dye in the presence of redox mediators

Química Nova, 2014
The optimization of the anaerobic degradation of the azo dye Remazol golden yellow RNL was performed according to multivariate experimental designs: a 2² full-factorial design and a central composite design (CCD).
Diego R. S. Lima, Bruno E. L. Baeta, Gilmare A. da Silva, Silvana Q. Silva, Sérgio F. Aquino   +4 more
doaj   +1 more source

Response surface methodological optimization of l-asparaginase production from the medicinal plant endophyte Acinetobacter baumannii ZAS1

Journal of Genetic Engineering and Biotechnology, 2022
Background This study targets the enhanced production of l-asparaginase, an antitumor enzyme by Acinetobacter baumannii ZAS1. This organism is an endophyte isolated from the medicinal plant Annona muricata.
K. N. Abhini, Akhila B. Rajan, K. Fathimathu Zuhara, Denoj Sebastian   +3 more
doaj   +1 more source

Optimization of Voltammetric Determination of Dysprosium (III) Using Plackett-Burman and RSM-CCD Experimental Designs

مجلة بغداد للعلوم, 2020
This study was aimed to develop an optimized Dy determination method using differential pulse voltammetry (DPV). The Plackett-Burman (PB) experimental design was used to select significant factors that affect the electrical current response, which were ...
Santhy Wyantuti, Zulida Setyorini, Safri Ishmayana, Yeni Hartati, M Firdaus   +4 more
doaj   +1 more source

Assessment of Phenol Removal Efficiency by Synthesized Zero Iron Nanoparticles and Fe Powder Using the Response Surface Methodology [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2017
The purpose of this study was the investigation of the removal of phenol with nanoparticles zero valent iron and iron powder. The effect of various parameters such as initial concentration, pH, contact time, and dosage of NZVI and Fe powder was examined,
Hasti Daraei, Abdeltif Amrane, Hossein Kamali   +2 more
doaj  

Lipase Activity Enhancement of KC4J Mutant from Oil Palm Waste Using Response Surface Method and Characterization.

Microbiology Indonesia, 2022
Lipase has an important role in industry. The KC4J mutated isolates from oil palm  waste had 100% similarity to  Aspergillus fumigatus strain RA204, a fungus known produce lipase.
Aris Indriawan, Trismilah ., Wibowo Mangunwardoyo, Dadang Suhendar   +3 more
doaj   +1 more source

Optimisation of broilers performance to different dietary levels of fibre and different levels and sources of fat from 0 to 14 days of age

Italian Journal of Animal Science, 2021
Central composite design (CCD; 3 levels and 3 factors) and response surface methodology (RSM) were used to evaluate the average daily body weight gain (ADG) and feed conversion ratio (FCR) in broiler chicks to different levels of dietary sugar beet pulp (
Fatemeh Aziz-Aliabadi, Ahmad Hassanabadi, Abolghasem Golian, Saeed Zerehdaran   +3 more
doaj   +1 more source

Central composite design for the removal of copper by an Adansonia digitata

Desalination and Water Treatment
Biosorption, an alternative to traditional methods such as precipitation, ion exchange, electrochemical treatment, and evaporative recovery, is being considered as a potential means for removing heavy toxic metals from waste solution.
Naveen Prasad, Rakesh Namdeti, Gaddala Baburao, Doaa Salim Musallam Samhan Al-Kathiri, Uma Reddy Meka, Khalid Mahad Ali Tabook, Arlene Abuda Joaquin   +6 more
doaj   +1 more source

Investigation of biomass productivity from Nannochloropsis gaditana via response surface methodology using MATLAB

Energy Reports, 2020
This study aimed to investigate biomass productivity to produce bioethanol from Nannochloropsis gaditana grown in Johnson’s medium including different concentrations of macronutrients. For this study, we prepared various concentrations of KNO3(0.1–2 g/L),
Aytun Onay
doaj   +1 more source

OPTIMIZATION OF SPRAY DRYING PROCESS USING CENTRAL COMPOSITE DESIGN (CCD)

Journal of Applied Pharmacy, 2014
Spray-drying process was used for the development of drug complex with β-CD (β-cyclodextrin). The purpose of this research was to investigate the effects of formulation and process variables on the resulting powder characteristics in order to optimize them. A face-centered central composite design was applied to optimize the spray drying process on a
openaire   +2 more sources