Numerical analysis of impact events in a centrifugal impact pin mill

Milling is an important operation in many industries, such as mining and pharmaceutical. Although the comminution process during milling has been extensively studied, the material fragmentation mechanisms in a mill are still not well understood partly because of the lack of an understanding on the local stressing and dynamic information under operational conditions in mills. This paper presents a DEM simulation of particle dynamics and impact events in a centrifugal impact pin mill. The main focus is the statistical characteristics of the dominant stressing modes during the milling process. The frequency, velocity and force of the different impact events between particles and mill components, or between particles, are analysed. © 2013 AIP Publishing LLC.

Histoire de Philippe de Madien, par Perrinet DU PIN.

Contient : Table des chapitres, incomplète, et s'arrêtant au chapitre XXII ; Épître dédicatoire de « Perrinet DU PIN, natif de la ville de La Rochelle, ou rouyaume de France », à « Anne de [Lusignan], fille de [Jean II], roy de Cypre, duchesse de Savoie [par son mariage avec le duc Louis] », etc ; Début du premier chapitre : « Quant Regnault de Madien oult demouré avecques le père de sa femme environ XX ans... » ; « ... ainssy que nous raconte l'ystore dudict roy Philipe, lequel en ma conscience je ay extraict, sans riens y mectre et adjouster, fors la vraye vérité, de ce que je ay trouvé ès livres dessudictz, lesquels en faisant la conclusion de cest présent volume ou traictié, je parachevay de veoir et visiter le VIIIe jour du moys de juillet mil CCCC quarante huit. Amen. Explicit »

Daughters of the Empire Pin

A jewelry case which is a souvenir of the opening of the Royal York Hotel, June 1929. The case is faux leather with a velveteen lining. Inside the case is a pin for the Daughers' of the Empire. The pin belonged to Margaret Julia Woodruff (Band). "Margaret Woodruff" is scratched onto the back of the pin. She joined the group in 1909.

Sorority Pin

A sorority pin of Margaret Julia Woodruff (Band). It is diamond shaped and it has a pearl like border around the outside.

St. Margaret's College Pin

A St. Margaret's College pin. The college was located at, 144 Bloor St. East, Toronto.