𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Correspondence analysis for describing the morphology of powders. Application to a commercial alumina powder

✍ Scribed by M Deletter; F Cambier; C Leblud; M.R Anseau


Publisher
Elsevier Science
Year
1983
Weight
885 KB
Volume
31
Category
Article
ISSN
0001-6160

No coin nor oath required. For personal study only.

✦ Synopsis


Aimtrsct-llw

authors define a method which allows the shape of a whole set of different objects to be studied. The Fourier series allows the shape of each object to be quantified by a set of parameters. This information is gathered by 'correspondence analysis". It allows points relative to the harmonics of the Fourier series and points relative to the objects that are taken into consideration, to be represented in the same space simultaneously. The projection of this set onto plans containing the maximum of information allows it to be visualized and maps to be obtained which are the shape pictures of the set of objects. As an example, the mathematical treatment is applied to a commercial alumina powder and the shape maps thus obtained arc discussed.

R&m&La

auteurs definisscnt une methode qui permet Etude de la forme dun ensemble d'objets differenta Les series de Fourier pcrmettent de quantifier par un ensemble de parametres la forme de chaque objet. L'information contenue darts un grand nombre de donn&es numtriques tst recueillie g&e a la mbthode de l'analyee da correspondances. Cellti permet la representation dans un m&e espace a la fois d&s points relatifs aux harrnoaiqua de-s series de Fourier et des points r&ifs aux objets consider& La projection du nuage ainsi form6 sur des plans contenant le maximum d'infonnation permet de le visuatiser et d'obtenir des cartes qui sent ks images de la forme de l'ensemble des objets. A titre d'exemple. k traitement mathematique est applique a une poudre d'alumine commerciale et les cartes morphologiques obtenues sent comment&s. ZusaatmaafuarPls_Eine Methode wird vorgestellt, mit der die Form eines ganxen Satxes von verschiedcnen Objekten untersucht werden kann. Die Fourierreihe ermbglicht, die Form eineajeden Objektes mit einesn Parametersatz N quantifixieren. Hierxu wird einc "Koneapondenxanaiyae" benutxt. Dadurch lassen sich Ptmkte, die mit den Harmonischen der Fourierreihe xusammenhiingen. tmd Ptmkte, die den ausgewerteten Objekten entsprechen, in demselben Raum gleichxeitig darstellen. Die Projektion dieses Satzes aur Ebenen mit maximaler Information ergibt Darstellungen. welche den Formen dea untersuchten Objektsataa erttsprechen. Als Beispiel wird dieses mathematische Verfahren auf ein kommeritielles Aluminiumoxidpulver angewendet; die erhaltenen Formdarstellungen werden diskutiert.


πŸ“œ SIMILAR VOLUMES


Polyethylene powder microcolumn for prot
✍ Jean Karlo Acosta MendonΓ§a; Paulo CΓ­cero do Nascimento; Denise Bohrer πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 308 KB πŸ‘ 1 views

## Abstract Three different types of polyethylene powder (PE) were investigated with regard to their ability to adsorb proteins, with the goal of accomplishing plasma deproteinization for further HPLC analysis. Best results were obtained with ultrahigh molecular mass polyethylene The proteins retai

A new three-dimensional finite element m
✍ Ashoka G. K. Jinka; Michel Bellet; Lionel Fourment πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 284 KB πŸ‘ 3 views

In powder metallurgy (P/M) the forming of industrial artifacts requires consolidation of loose powder into dense material leading to near-to-net shape components. In order to realize the economic advantages of the near-to-net shape formation, it is essential to understand the mechanical behaviour of