?The patient J., a Hindu male, aged 38, married, was working as a ward servant and was admitted for treatment of giddiness, of one week's duration. 23rd August. On admission his pulse was 100 and spiration 28 per minute, and temperature 98?F. ere was nothing particular about his family history, personal history and previous illnesses. About a week e ore admission he scratched his right ear with...

The mechanical size reduction of solids is an energy intensive and highly inefficient process. Therefore, there is great incentive to improve the efficiency of size reduction and mineral separation processes. Over several decades, this has promoted significant amounts of research,unfortunately, this has only led to small, incremental improvements in efficiency. One area which has shown signific...

Estimation of ore reserves is one of the most critical aspects of mining geology. The accurate assessment of the tonnage and grade of run of mine may be the difference between a healthy profitable operation and an expensive early mine closure. The first step in ore reserve estimation is to determine the boundary of ore body or ore/waste contacts. This paper presents a specific mining applicatio...

We investigated the influence of microwave and conventional heating pretreatments on grinding cassiterite associated with pollimetallic ore. The minerals that exhibited a stronger absorption ability crushed first, which is main difference between traditional pretreatments. distribution Fe, Pb, Zn, Sn increased in fine size range (−0.425 mm). Fe Pb grades ranges −3.2 + 2 mm −2 1 after pretreatme...

gomish-tappeh zn-pb-cu (ag) deposit is located 90 km southwest of zanjan, in northwestern part of urumieh-dokhtar volcano-plutonic zone. exposed rocks at the area include oligo-miocene volcano-sedimentary and sedimentary sequences as well as pliocene volcano-plutonic sequence (andesite porphyry dykes, dacitic subvolcanic dome and rhyodacitic volcanics). alteration in the deposit developed as si...