Several theoretical predictions of the mass flow rate of granular media discharged from a silo are based on the spontaneous development of a free-fall arch region, the existence of which is still controversial. In this Letter, we study experimentally and numerically the particle flow through an orifice placed at the bottom of 2D and 3D silos. The implementation of a coarse-grained technique all...

Seven biogenic amines (BAs) and polyamines were determined in 113 maize silages sampled from farm large-capacity silos 6–8 weeks after filling and sealing the silos. Amines were quantified as N-benzamides by micellar electrokinetic capillary chromatography. Mean dry matter (DM) contents of silages were 449±62 and 378±56 g/kg in 1999 and 2000, respectively. Tyramine (TY), putrescine (PUT), cadav...

Currently there is a problem with information management at many major post secondary institutions. Information was historically acquired, stored and maintained in silos such as Human Resources, Materials Management, Departments or Faculties, Information Technologies centers, Administration units etc. With the arrival of Enterprise Solutions such as People Soft® or SAP®, situations improved bec...

In den letzten Jahren hat die Disziplin des Enterprise Decision Managements (EDM) in der Forschung und in der Praxis stark an Bedeutung zugenommen. Unternehmen haben operative Entscheidungen aus ihren Geschäftsprozessen und Anwendungssystemen ausgelagert [10]. Die wachsende Menge und die steigende Komplexität operativer Entscheidungen führen zu einer Vielzahl voneinander abgegrenzter Silos oper...

We measure the flow of granular materials inside a quasi-two-dimensional silo as it drains and compare the data with some existing models. The particles inside the silo are imaged and tracked with unprecedented resolution in both space and time to obtain their velocity and diffusion properties. The data obtained by varying the orifice width and the hopper angle allow us to thoroughly test model...

A lower granular temperature zone near the orifice in silos was found by speckle visibility spectroscopy technology. Surprisingly, values of this area are inversely proportional to mass discharge rate (MDR). This finding that links macroscopic MDR with mesoscopic dynamics particle system, is obtained looking at effect different outlet sizes on and field. Apart from evidencing relevance a parame...