Results 91 to 100 of about 471,125 (347)

Screening of parameters and optimization of nickel extraction by green emulsion liquid membrane using statistical experimental design

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study focuses on the extraction of nickel ions from an aqueous solution using a green emulsion liquid membrane (GELM). Its primary objective is to choose between corn oil and sunflower oil as a solvent in GELM and compare their performance with a kerosene‐based emulsion liquid membrane (ELM).
Farzin Sadehlari   +2 more
wiley   +1 more source

Quality by Design Based Optimization of a High Performance Liquid Chromatography Method for Assay Determination of Low Concentration Preservatives in Complex Nasal Formulations

open access: yesActa Chimica Slovenica, 2015
The effects of seven different chromatographic parameters and five sample preparation parameters in a high performance liquid chromatography (HPLC) method for assay determination of benzalkonium chloride (BKC) in a nasal formulation were evaluated using ...
Jure Zakrajšek   +3 more
doaj   +1 more source

Approximate theory-aided robust efficient factorial fractions under baseline parametrization [PDF]

open access: yesarXiv, 2014
With reference to a baseline parametrization, we explore highly efficient fractional factorial designs for inference on the main effects and, perhaps, some interactions. Our tools include approximate theory together with certain carefully devised discretization procedures.
arxiv  

pH and UVA real‐time data feasibility for monitoring aqueous PVA degradation in a continuous pilot‐scale UV/H2O2 photoreactor: Experimental and statistical analysis

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Feasibility study of real‐time monitoring of aqueous PVA degradation in a continuous pilot‐scale UV/H2O2 photoreactor. Abstract The performance of a continuous pilot‐scale UV/H2O2 photoreactor for the degradation of aqueous polyvinyl alcohol (PVA) is studied.
Zahra Parsa   +2 more
wiley   +1 more source

Optimization of Biodiesel Production from Spent Palm Cooking Oil Using Fractional Factorial Design Combined with the Response Surface Methodology

open access: yes, 2016
Fractional Factorial Design (FFD) of the experiments combined with the response surface methodology was used to determine the optimum conditions for the production of biodiesel from Used Cooking Oil (UCO) in a batch reactor.
S. Hossain   +6 more
semanticscholar   +1 more source

Purification of Li2CO3 Obtained through Pyrometallurgical Treatment of NMC Black Mass from Electric Vehicle Batteries

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Lithium carbonate (Li2CO3) obtained from the black mass of recycled lithium batteries is dissolved in water under controlled conditions to remove lithium fluoride (LiF), which is present at a concentration of 3.08 % by weight. The dissolution is carried out at temperatures below 10 °C, and it has been demonstrated that lower temperatures result in ...
Laura Rosso   +3 more
wiley   +1 more source

Design of Experiments for Screening [PDF]

open access: yesarXiv, 2015
The aim of this paper is to review methods of designing screening experiments, ranging from designs originally developed for physical experiments to those especially tailored to experiments on numerical models. The strengths and weaknesses of the various designs for screening variables in numerical models are discussed.
arxiv  

Eco‐Friendly and Ready‐To‐Market Polyurethanes: A Design of Experiment‐Guided Substitution of Toxic Catalyst and Fossil‐Based Isocyanate

open access: yesChemSusChem, EarlyView.
Increasing bio‐based and circular components in polyurethane formulation up to 65 %w/w maintaining the market acceptability through multivariate analysis approach Abstract In this contribution, we tackle the replacement of the Hg‐based catalyst and fossil‐derived isocyanate precursors toward the formulation of a more sustainable polyurethane ...
Gabriele Viada   +5 more
wiley   +1 more source

Heart failure and obesity: Translational approaches and therapeutic perspectives. A scientific statement of the Heart Failure Association of the ESC

open access: yesEuropean Journal of Heart Failure, EarlyView.
Abstract Obesity and heart failure (HF) represent two growing pandemics. In the general population, obesity affects one in eight adults and is linked with an increased risk for HF. Obesity is even more common in patients with HF, where it complicates the diagnosis of HF and is linked with worse symptoms and impaired exercise capacity. Over the past few
Gianluigi Savarese   +28 more
wiley   +1 more source

Characterizations of indicator functions and contrast representations of fractional factorial designs with multi-level factors [PDF]

open access: yesarXiv, 2018
A polynomial indicator function of designs is first introduced by Fontana, Pistone and Rogantin (2000) for two-level designs. They give the structure of the indicator function of two-level designs, especially from the viewpoints of the orthogonality of the designs.
arxiv  

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