Results 91 to 100 of about 18,422 (208)

Summary of effect aliasing structure (SEAS): new descriptive statistics for factorial and supersaturated designs

open access: yes, 2017
In the assessment and selection of supersaturated designs, the aliasing structure of interaction effects is usually ignored by traditional criteria such as $E(s^2)$-optimality. We introduce the Summary of Effect Aliasing Structure (SEAS) for assessing the aliasing structure of supersaturated designs, and other non-regular fractional factorial designs ...
Phoa, Frederick Kin Hing   +3 more
openaire   +2 more sources

Experimental Designs and Statistical Analyses for Rootstock Trials

open access: yesAgronomy
Modern agricultural research, including fruit tree rootstock evaluations, began in England. In the mid-1800s, field plots were established at the Rothamsted Research Station to evaluate cultivars and fertilizer treatments for annual crops.
Richard P. Marini
doaj   +1 more source

Use of factorial designs in combination toxicity studies

open access: yes, 1996
The use of factorial designs, in which n chemicals are studied at x(n) dose levels (x treatment groups), has been put forward as one of the valuable statistical approaches for hazard assessment of chemical mixtures.
J.P. Groten   +5 more
core   +1 more source

SCALE-UP II: protocol for a pragmatic randomised trial examining population health management interventions to increase the uptake of at-home COVID-19 testing in community health centres

open access: yesBMJ Open
Introduction SCALE-UP II aims to investigate the effectiveness of population health management interventions using text messaging (TM), chatbots and patient navigation (PN) in increasing the uptake of at-home COVID-19 testing among patients in ...
David W Wetter   +24 more
doaj   +1 more source

Statistical optimization of the growth factors for Chaetoceros neogracile using fractional factorial design and central composite design.

open access: yesJournal of microbiology and biotechnology, 2009
Statistical experimental designs; involving (i) a fractional factorial design (FFD) and (ii) a central composite design (CCD) were applied to optimize the culture medium constituents for production of a unique antifreeze protein by the Antartic microalgae Chaetoceros neogracile.
Sung-Eun, Jeong   +6 more
openaire   +1 more source

Algebraic generation of Orthogonal Fractional Factorial Designs

open access: yes, 2010
The joint use of counting functions, Hilbert basis and Markov basis allows us to define a procedure to generate all the fractional factorial designs that satisfy a given set of constraints in terms of orthogonality (Fontana, Pistone and Rogantin (JSPI ...
Fontana, Roberto, Pistone, Giovanni
core  

Optimization of Operating Variables of Molybdenite Column Flotation Using Factorial Design and Statistical Techniques

open access: yesMinerals
In this study, column flotation was used to recover high-grade molybdenite (MoS2) concentrate. Factorial design and statistical analysis were used to evaluate the relationships between the main variables affecting separation efficiency. The main variables were particle size (A), superficial gas velocity (E), depressant dosage (B), superficial wash ...
Oyunbileg Purev, Chul-Hyun Park
openaire   +1 more source

Design of experiments with mixed effects and discrete responses plus related topics

open access: yes, 2012
For certain types of experiment, the response cannot be adequately modelled using a normal distribution. When this is the case, it is common to use a Generalised Linear Model (GLM) to analyse the data. Such models allow us to fit a wide range of response
Waite, Timothy
core  

Different types of cluster membership in parallel-group cluster-randomised trials, where the clusters are institutions: a classification system to aid identification, with six proposed designs

open access: yesTrials
Background Four main types of cluster-randomised trial (CRT) are well known: parallel-group (PG), factorial, stepped-wedge and crossover designs. This established typology relates to how clusters are exposed to intervention(s) or control(s) during the ...
L. E. Marsden   +5 more
doaj   +1 more source

Application Of Design Of Experiment In Printed Cuircuit Board Assembly Industry. [PDF]

open access: yes, 2005
Printed circuit board assembly (PCBA) is a process of mounting and inserting components to printed circuit board (PCB) by means of several principle processes such as Manual Insertion, Auto Insertion (Axial & Radial), Wave Soldering, Surface Mount ...
Safian, U., Zalila, A., Mathaeswari, V.
core  

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