Results 171 to 180 of about 18,422 (208)

Design and statistical analysis of confounded factorial experiments

2018
Ten confounded factorial experiments were designed with the purpose of filling in the existing gaps among the available plans. The method of analyzing such experiments was presented and illustrated by the 5 x 2 x 2 experiment. For each design, the reasons why a particular plan was adopted were discussed; the instructions for computing the sums of ...
openaire   +2 more sources

Sulfate removal from mine-impacted water by electrocoagulation: statistical study, factorial design, and kinetics

Environmental Science and Pollution Research, 2020
This work aimed to remove sulfate and acidity from mine-impacted water (MIW) via electrocoagulation (EC), a technique which stands as an advanced alternative to chemical coagulation in pollutant removal from wastewaters. The multiple electrochemical reactions occurring in the aluminum anode and the stainless steel cathode surfaces can form unstable ...
Caroline Rodrigues, Hioná V. Dal Magro Follmann, Dámaris Núñez-Gómez, Maria Eliza Nagel-Hassemer, Flávio R. Lapolli, María Ángeles Lobo-Recio   +5 more
openaire   +3 more sources

Statistical robust technique procedures for fractional factorial design with non constant variance

AIP Conference Proceedings, 2017
Fractional factorial design (FFD) has been widely used in engineering, agricultural, biology and social sciences. Although FFD is considered a conventional design, there still occurs a basic problem such as nonconstant variance may affect parameter estimation.
Nadia Mohd Yunus, Nora Muda
openaire   +1 more source

Evaluation of modeling accuracy of 20-node solid elements by statistical factorial design

Computers & Structures, 1994
Abstract Many complex engineering structures consist of plates and shells. When applying finite element methods to a plate or shell, how can a design engineer choose an initial mesh and decide the integration order? The statistical design of experiments is employed to investigate the influence of three relevant modeling factors—aspect ratio, number ...
Chiang, Y. J., Lee, Y.-L.
openaire   +1 more source

Development of nifedipine-loaded albumin microspheres using a statistical factorial design

International Journal of Pharmaceutics, 1996
Nifedipine-loaded albumin microspheres were prepared by a chemical cross-linking method to develop a sustained-release form. The qualities of the nifedipine-loaded albumin microsphere products were affected by several variables. In this study, the effects on the percentage of nifedipine incorporated into albumin microspheres of four different variables
openaire   +1 more source

Statistical Analysis of Tribological Properties of Aluminum Matrix Composites Using Full Factorial Design

Transactions of the Indian Institute of Metals, 2015
This work describes the tribological properties of mono AA6061-10 wt% B4C and hybrid AA6061-10 wt% B4C-7.5 wt% Gr composites which could be used as a potential substitute for aluminum alloys used in automotive engines. The tribological experiments are performed as per the experimental scheme designed using full factorial design.
V. V. Monikandan, Jibin C. Jacob, M. A. Joseph, P. K. Rajendrakumar   +3 more
openaire   +1 more source

Prioritised multi‐response product screening using fractional factorial designs and order statistics

Journal of Manufacturing Technology Management, 2009
Purpose – The purpose of this paper is to propose a manufacturing product‐screening methodology that will require minimal resource expenditures as well as succinct improvement tools based on multi‐response prioritisation.Design/methodology/approach – A six‐step methodology is overviewed that relies on the sampling efficiency of fractional factorial ...
openaire   +1 more source

Optimizing Self-Consolidating Concrete with Limestone Filler by using Statistical Factorial Design Methods

ACI Materials Journal, 2002
Self-consolidating concrete (SCC) is typically proportioned with relatively high contents of cementitious materials and chemical admixtures, leading to relatively high material costs. Such costs can be tolerated in high-value-added applications, especially if cost savings can be realized from using SCC.
openaire   +1 more source

Fluconazole Microemulsions: Preparation, Statistical Optimization by Two-level Factorial Design, and Physicochemical Evaluation

Letters in Drug Design & Discovery
Background: Candida albicans is the yeast that causes the fungal infection known as candidiasis. One of the standard methods for treating candida is the application of fluconazole. The low solubility of fluconazole in aqueous media is a big problem in the use of this agent. Novel drug delivery systems, such as microemulsions, could be applied to solve
Payam Khazaeli, Abbas Pardakhty, Gholamreza Dehghannoudeh, Sina Safizade, Marzieh Sajadi Bami, Mandana Ohadi   +5 more
openaire   +1 more source

Statistical Modelling of Agricultural Yield Using A 𝟑^𝟐 Factorial Design in Plateau State

International Journal of Research and Innovation in Applied Science
The world faces growing pressure to produce more food due to rising population and crop loses. This study applied a 32 factorial design to model the relationship between area cultivated and input intensity in determining agricultural yield in Plateau state, Nigeria.
Ukaogo Greatman Odinakachukwu, Felix James, Ohanuba Felix Obi   +2 more
openaire   +1 more source