STUDY OBJECTIVE The aim was to examine whether baseline characteristics from a cross sectional survey provided sufficient information regarding non-response bias in a follow up study when compared with information on hospital admissions in the intervening years. DESIGN This was an 11 year follow up study of a cohort selected in 1974 with register information on hospital admissions during foll...

using the mathematic techniques such as fuzzy approach has useful outcomes for production planning in different sources. in this paper lgp1 was used to model the objectives such as: avoidance of shortage or surplus of demand, access to maximum of income, using the normal capacity of production and organizing the inventory of warehouse, within the framework of goal constraints like balancing be...

This paper reveals an appropriate ingredient to operating the hazardous and radioactive electric arc furnace dust (EAFD) from steel production factory using cement immobilization technique. The specimens were prepared by mixing tap water with binders (i.e., ordinary Portland cement: OPC, EAFD) at different EAFD replacement of 0%, 15%, 25%, 35%, 40%, 45%, 50% weight. water-to-binders ratio was f...

BACKGROUND Family members of asbestos workers are at increased risk of malignant mesothelioma (MM). Although the hazard is established, the magnitude of the risk is uncertain, and it is unclear whether risk is also increased for other cancers. Few cohort studies have been reported. OBJECTIVE The "Eternit" factory of Casale Monferrato (Italy), active from 1907 to 1986, was among the most impor...

We conducted a panel study to investigate seasonal variations in concentrations of airborne PM2.5 and PM10 and the effects on respiratory health in a community near a cement factory; in Chilanga; Zambia. A panel of 63 and 55 participants aged 21 to 59 years from a community located at the edge of the factory within 1 km and a control community located 18 km from the factory respectively; were f...

Nowadays there is great pressure on production systems design to be developed rapidly and efficiently. For these purposes several software tools have been used – mainly for project analysis, design and validation. Nevertheless, these tools have been used with low integration levels, including absence of data coherence, and lack of layout optimization. This work deals with production systems des...

Fault diagnosis and failure prognosis are essential techniques in improving the safety of many manufacturing systems. Therefore, on-line fault detection and isolation is one of the most important tasks in safety-critical and intelligent control systems. Computational intelligence techniques are being investigated as extension of the traditional fault diagnosis methods. This paper discusses the ...

The trace element content of clinkers (and possibly of cements) can be used for the qualitative identification (i.e. manufacturing factory). Several hundred clinker sorts have been analysed (by replicated quarterly samples, collected from all Hungarian cement factories as well as from factories of 8 foreign countries) to determine their Mg, Sr, Ba, Mn, Ti, Zr, Zn and V content. The first 6 elem...

The Research Group for Automation of the Central Research and Design Institute for Silicate Industry (CRDISI) has been working for some years on the automation of technological processes in the silicate industry, in cooperation with the Department of Automation of the Technical University of Budapest (DATU). CRDISI yields the technological background, provides for the hardware tools and the bas...