Now that high quality reserves are diminishing and quality specifications are becoming more strict, more processing is required to maintain quality standards. Additional environmental pressures have also reduced the attractiveness and cost effectiveness of the chemical based froth flotation process. As a result there has been a resurgence of interest in the purely physical processes of gravity ...

OBJECTIVE Localized texture analysis of breast tissue on mammograms is an issue of major importance in mass characterization. However, in contrast to other mammographic diagnostic approaches, it has not been investigated in depth, due to its inherent difficulty and fuzziness. This work aims to the establishment of a quantitative approach of mammographic masses texture classification, based on a...

We analyze judgement aggregation problems in which a group of agents independently votes on a set of complex propositions that has some interdependency constraint between them (e.g., transitivity when describing preferences). We generalize the current results by studying approximate judgment aggregation. That is, we relax the main two constraints assumed in the current literature. We relax the ...

The catalytic co-conversion of glycerol and oleic acid (45/55 wt%) to bio-based aromatics (benzene, toluene, xylenes, bio-BTX) over a technical H-ZSM-5/Al2O3 catalyst in fixed-bed reactor was investigated with special attention deactivation phenomena. spent catalysts after time on stream (TOS) 12 h were regenerated by an ex-situ oxidative treatment remove coke reused for another run. In total, ...

A central composite rotatable design was employed to investigate the effects of independent variables on physical and textural properties of low-fat pork burgers and to optimize the process condition of the product. The independent variables were konjac/gellan blend (0-1%) and pork fat content (0-100%). The analysis of variance and regression analysis showed that cooking yield (%), reduction in...

A classification method based on textural information for metallic surfaces displaying complex random patterns is proposed. Because these kinds of textures show fluctuations at a small scale and some uniformity at a larger scale, a probabilistic approach is followed, considering textural variations as realizations of random functions. Taking into account information of pixel neighbourhoods, the...

In this work, we present a facile and low-cost approach to synthesize heteroatom doped porous carbon via hydrothermal treatment of stem bark of broussonetia papyrifera (BP) as the biomass precursor in diluted sulfuric acid, and following thermal activation by KOH at 800 °C. The morphology, structure and textural property of the prepared porous carbon (PC) are investigated by scanning electron m...

The past several years rendered a resurgence of interest in phosphors for lowvoltage flat panel displays utilizing cathodoluminescence (CL). A major selection criterion for these phosphors is CL efficiency. The objective is to maximize the efilciency at low voltages. This work focuses on understanding the materials properties that influence CL efficiency below 1 kV. Existing high-voltage CL eff...