For a random mixture the variance of sample compositions decays inversely as the sample size, whilst for a totally segregated mixture it is independent of sample size. An analysis of an intermediate mixture, in whichcompositions are correlated according to the tirst order, auto regressive sequence,
The relationship between variance and sample size for mixtures
โ Scribed by M.H. Cooke; J. Bridgwater
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 455 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
โฆ Synopsis
Ah&act
-Mixture quahty LS often assessed by wlthdrawmg a number of samples of proscribed size and calculatmg the variance of the composrtlons AnalytIcal expressrons for the relatlonshlp between vanance, where it IS controlled by short-range correlation, and sample size for common forms of the correlation coefficient are developed using an orthogonal (L,-metnc) method of measurtng distance This IS the preferred method when a mixer or disperser operates by dlstibutmg mate& simultaneously m two mutually perpendicular duectlons The two-dlmensronal equations are Illustrated ustng experlmental data
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