Ontologies are built in a variety of circumstances, for different applications. Some are quite small and built with minimal consideration (or need) for extensibility. Others, such as many of the large-scale efforts in the OBO Foundry, have a team of developers, domain specialists and collaborators actively engaged in interactive development [1-2]. The size of the ontology, or the complexity of ...

The aim of this article is to test the properties of foundry moulding sands with a new bicomponent organic binder. The new binder is the composition of phenol-furfuryl resin, commonly used in foundry practice and biodegradable material – polycaprolactone. The paper presents the research of strength properties, thermal destruction and thermal deformation of moulding sands with a new bicomponent ...

The specification of an aluminum alloy for a cast component is based upon the mechanical properties it can achieve. For the designer and purchaser, it is vital to understand that the properties obtained from one particular combination of casting alloy, foundry practice and thermal treatment may not be identical to those achieved with the same alloy in a different foundry or with a different the...

An increased lung cancer risk has been described among foundry workers. Polycyclic aromatic hydrocarbons (PAHs) and silica are possible aetiological factors. This study describes a urinary PAH metabolite, 1-hydroxypyrene (hpU), as well as the degree of cytochrome P450IA2 activity/induction as reflected by the urinary caffeine ratio (IA2) in 45 foundry workers and 52 controls; IA2 was defined as...

Ontologies built using OBO Foundry principles are advised to include both formal (logical) definitions and natural language definitions. Depending on the effort, one or the other can be underrepresented. Possible explanations to this bottleneck are the high cost of producing well-written definitions; an insufficient understanding of the nature of natural language definitions or of logic; the la...