The societal and environmental impacts of mining activity are the focus of greater interest today than ever before. Many emerging economies are in the process of developing environmental policies for the first time. These new policies will surely affect how mining operations are expected to perform: producing the raw material needed to drive the economy at the lowest possible cost becomes as im...

Abstract The aim of the paper consists in study three Romanian types marble (Ruschita, Albesti, Carrara) with different compositions temperature conditions, for periods time. samples were exposed to two treatments: 25 cycles freeze-thaw (according SR EN 12371) and 3 exposure high temperatures (400 °C 1 hour). Following cycles, small differences chromatic parameters could be observed (∆E = 2.2 C...

In this paper we study authenticated encryption algorithms inspired by the OCB mode (Offset Codebook). These algorithms use secret offsets (masks derived from a whitening key) to turn a block cipher into a tweakable block cipher, following the XE or XEX construction. OCB has a security proof up to 2 queries, and a matching forgery attack was described by Ferguson, where the main step of the att...

The origin of the stone industry in Belgium goes back as far Roman occupation. marble industry, with oldest pieces testimony, to 16th century. workshops were located South and even at this period main customers abroad: France, Britain its Empire, States… realization a sculpture natural stone, marble, asks rigor method direct link material because each small modification on is permanent. plaster...

C. Sanz de Galdeano Instituto Andaluz de Ciencias de la Tierra (C.S.I.C., Universidad de Granada), Facultad de Ciencias, E-18071 Granada, Spain Abstract The analysis of the fractures in the marble forming sierras Blanca and Mijas (southern Spain), with faults of markedly different sizes and joints measured at 21 stations, demonstrate the presence of two principal directions of fractures (NNW-SS...

A research has been carried out to develop natural rubber (NR) hybrid composites reinforced with marble sludge (MS)/Silica and MS/rice husk derived silica (RHS). The primary aim of this development is to scrutinize the cure characteristics, mechanical and swelling properties of such hybrid composite. The use of both industrial and agricultural waste such as marble sludge and rice husk derived s...

The level of occupational health and safety management depends upon the scope of the industry as it varies according to the functions and scale. Designing the occupational health and safety management system for the small scale industries is more challenging due to their limited resources and other constraints. The basic groundwork for the proper implementation of occupational health and safety...