Rationalization of Operation at Besshi Mine

Development of Mine Hands: Extended Prodder for Protected Demining Operation

Increasing efficiency of thickener operation in concentrate plant of iron ore mine using coagulation-flocculation

Thickener is a main and fundamental step in modern mining separation processes. In this research, the effectof flocculant consumption rate and feed solid concentration of settling rate of layers was studied with differentconcentrations in iron ore mine of Jalalabad, Zarand, Kerman, Iran. The experiments were performed in two1000 ml graduated cylinders (61 and 62 mm diagonal an...

Grinding Circuit at Mouteh Gold Mine

This study was conducted in Mouteh grinding circuit. Mouteh gold processing plant is located in Esfahan province,center of Iran, close to Mouteh open pit mine. One of the main problems in this circuit is low efficiency grinding operation. In this study, first grinding circuit and its performance parameters are evaluated. Laboratory and corrected operating Bond work index subsequently were calcu...

Rationalization of Freeform Surfaces

An ever broader availability of freeform designs together with an increasing demand for product customization has lead to a rising interest in efficient physical realization of such designs, the trend toward personal fabrication. Not only large-scale architectural applications are (becoming increasingly) popular but also different consumer-level rapid-prototyping applications, including toy and...

Categorifying Rationalization

We solve a problem proposed by Khovanov by constructing, for any set of primes S, a triangulated category (in fact a stable∞-category) whose Grothendieck group is S−1Z. More generally, for any exact∞-category E, we construct an exact∞-category S−1E of equivariant sheaves on the Cantor space with respect to an action of a dense subgroup of the circle. We show that this∞-category is precisely the...