نتایج جستجو برای: salt mine
تعداد نتایج: 103396 فیلتر نتایج به سال:
20070928 ......................... Aktiegolaget Volvo ............................. Ingersoll-Rand Company Limited ...... Blaw-Knox Construction Equipment Corporation. 20070932 ......................... Beacon Roofing Supply, Inc .............. North Coast Commercial Roofing Systems, Inc. North Coast Commercial Roofing Systems, Inc. 20070940 ......................... OCM Principal Opportunities...
Paul W. Bauer is an economist at the Federal Reserve Bank of Cleveland, Allen N. Berger is a senior economist at the Board of Governors of the Federal Reserve System, and David B. Humphrey is a professor of finance at Florida State University. The authors would like to thank Knox Love11 and James Thomson for helpful comments, and Alex Wolman and Fadi Alameddine for outstanding research assistance.
in all over the world, mining is considered as a high-risk activity that is pregnant with serious disasters not only for miners, engineers, and other people into it, but also for people who live near the mines. in this article, our main purpose is to examine some major mine disasters and safety in mines and the case study is a coal mine in turkey. safety in mines is one of the most important is...
In the context of open-pit mine planning, uncertainties including commodity price would significantly affect the technical and financial aspects of mining projects. A mine planning that takes place regardless of the uncertainty in price just develops an optimized plan at the starting time of the mining operation. Given the price change over the life of mine, which is quite certain, optimality o...
A daunting mine disaster took place in 13 May 2014 at Soma and 301 men lost their lives. Brief information about the Eynez coal mine and some of the inherent characteristics of the field in terms of their effects on mining are presented. This paper basically concentrates on the factors that played an important role in the occurrence of this disaster. Progress of mine fire, firefighting, and res...
Weathering of metal-sulfide minerals produces suites of variably soluble efflorescent sulfate salts at a number of localities in the eastern United States. The salts, which are present on mine wastes, tailings piles, and outcrops, include minerals that incorporate heavy metals in solid solution, primarily the highly soluble members of the melanterite, rozenite, epsomite, halotrichite, and copia...
cases frequently occur when one has an opportunity of speedily applying the remedy. A.t first I treated cases by the application of tartaric acid, with a little water, directly to the wound where the poison had been infused. This gave speedy relief in all cases. I next tried the application of alum in the same manner, and found it gave even more speedy relief. A servant of mine was stung in the...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید