The Open Biomedical Ontology (OBO) Foundry initiative is a collaborative effort for developing interoperable, science-based ontologies. OBO uses the Basic Formal Ontology (BFO) as its upper ontology. Ontologies developed for OBO use include some that have been ratified, and others holding the status of candidate. There are no formal, principled criteria that a candidate ontology must meet for r...

Al7075?Cu composite joints were prepared by the squeeze overcast process. The effects of melt temperature, die and pressure on hardness ultimate tensile strength (UTS) studied. experimental results depict that is most significant process parameter affecting UTS. optimal values UTS (48 MPa) (76 HRB) are achieved at a temperature 800 °C, 250 90 MPa. Scanning electron microscopy (SEM) shows fractu...

this study deals with employing foundry sand (fs) as new low cost iron source in heterogeneousphoto-fenton process for the degradation of herbicide isoproturon (ipu) in aqueous solution. thecharacterization of the fs by eds confirmed presence of iron (23%) required for photo-fenton andsimultaneously confirmed absence of any heavy metals which may be susceptible to leaching. the photo-fenton eff...

A. Kmita, AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Krakow, Poland. J. Zych, M. Holtzer, J. Mocek, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland. S. Piasny, Engineering Enterprise HARDKOP, Trzebinia, Poland. The aim of the investigations was the development of the protective coating and the method of it...

OBJECTIVE The aim was to describe cause specific mortality among steel foundry workers and to determine if any part of the experience may be due to occupation. DESIGN Historical prospective cohort study. SETTING Nine steel foundries in England and one in Scotland. SUBJECTS 10,438 male production employees first employed in the period 1946-65 and with a minimum period of employment of one ...

OBJECTIVES A cross sectional prospective study was carried out among iron foundry workers (exposed) and soft drink bottling and supply company workers (unexposed) to assess their occupational exposure to ambient respiratory dust in their work environment and its effect on their lung function profile. PARTICIPANTS Lung function was measured in 81 exposed and 113 unexposed workers. Personal res...

one major branch in mathematical sciences, which recently has been given especial attention, is optimization, including various methods such as linear programming, integer programming, and dynamic programming. due to the unique characteristics of air treatment systems, specifically multistage nature of such systems, dynamic programming has been widely applied. the purpose of this paper is to fi...

Components for engineering systems, such as gas turbines and jet engines operating at high temperature are usually produced in superalloys. The investment casting process is most widely used for manufacturing these components due to the ability of the process to produce parts with complex geometries to close dimensional tolerances. Other processing routes are less advantageous due to high mecha...

PURPOSE The aim of this study was to determine cancer morbidity amongst Swedish iron foundry workers with special reference to quartz exposure. In addition to respirable dust and quartz, phenol, formaldehyde, furfuryl alcohols, polycyclic aromatic hydrocarbons (PAHs), carbon black, isocyanates and asbestos are used or generated by foundry production techniques and exposure to any of these subst...