نتایج جستجو برای: mines wastewater

تعداد نتایج: 41172  

1999
David Wong Lawrence Carin

Experimental and theoretical results are presented for ultra wide-band (UWB) synthetic aperture radar (SAR) signatures of buried anti-tank and anti-personnel mines. Such are characterized by resonancelike peaks as well as valleys, across the 50–1200 MHz bandwidth considered. Consequently, frequency subbanding is used to highlight one target over another, of application to discriminating targets...

2013
Prashant Sharma Avinash Paul Ajoy Kr Singh

Prashant Sharma*, V M S R Murthy** Avinash Paul***& Ajoy Kr Singh*** *3 year Student, Bachelor of Technology in Mining Engineering, Indian School of Mines, Dhanbad826 015, India Contact No. +918092633969, +918871601404; Email: [email protected] **Professor, Mining Engineering Department, Indian School of Mines, Dhanbad826 015, India ***Scientist, Central Institute of Mining and Fuel...

2014
Fabien Lehuédé Philippe Grangier Axel Grimault Renaud Masson

1 École des Mines de Nantes, IRCCyN UMR CNRS 6597 (Institut de Recherche en Communications et Cybernétique de Nantes), 4 rue Alfred Kastler, 44307 Nantes, France [email protected] 2 Department of Mathematics and Industrial Engineering and CIRRELT, École Polytechnique de Montréal and CIRRELT, C.P 6079, Succursale Centre-ville, Montréal, QC, Canada H3C 3A7 3 OM-Partners, Koralenhoeve...

1998
Daniel W. McMichael

This paper introduces a statisticallywell-founded evaluation of the fusion of dual-band infrared and tri-band visual imagery for detecting buried land mines using real-data. A unified Bayesian framework is presented for representing and inferring from data captured by multiple sensors of scenes that may contain buried land mines.

Spontaneous combustion of coal is one of the most horrifying hazards in coal industries, especially in underground coal mines. Thus having a prior knowledge about the occurrence of this phenomenon in underground coal mines is of crucial importance in preventing this process, loss of life, huge economic loss, and environmental pollution. The aim of this work is to determine the spontaneous combu...

The contamination of ores with wastes or materials of lower than the cut-off grade is referred to as dilution. Dilution is an undesirable phenomenon that, on one hand, reduces the product grade and, consequently, reduces the sales prices and, on the other hand, adds an extra cost to waste production. Therefore, studying and evaluating the dilution risk is important in mining, and especially in ...

2005
Peter C. Chu Chenwu Fan

The United States military has undergone numerous changes since the end of the Cold War. Specifically, the U.S. Navy experienced a shift in the area of engagement from the “blue water” water depth greater than 100 m to littoral regions of the world. The sea mines become the big threat in the naval operations. Within the past 15 years three U.S. ships, the USS Samuel B. Roberts FFG-58 , Tripoli ...

Journal: :Radiation protection dosimetry 2017
Fu-Dong Liu Zi-Qiang Pan Sen-Lin Liu Ling Chen Lu Chen Chun-Hong Wang

Due to the improvement of production technology and the adjustment of energy structure, as well as the town-ownership and private-ownership coal mines (TPCM) were closed or merged by national policy, the number of underground miner has changed comparing with 2004 in China, so collective dose and normalization collective dose in different type of coal mine should be changed at the same time. In ...

2006
James J. Staszewski Alan Davison

Studies show that soldiers’ mine detection capabilities with the PSS-12 hand-held metal detector are substandard and that their probabilities of detecting (PD) low-metal mines are dangerously low. Highly experienced PSS-12 operators, however, achieve PDs over 0.90 on highand low-metal anti-tank (AT) and anti-personnel (AP) mines. Significantly, experts’ detection techniques differ from conventi...

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