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  • SME
    Using Machine Learning To Evaluate Coal Geochemical Data With Respect To Dynamic Failures - SME Annual Meeting 2023

    By D. R. Hanson, H. Lawson

    In this study, NIOSH researchers conducted a machine learning analysis to examine whether a model could be constructed to assess the probability of dynamic failure occurrence based on geochemical and

    Feb 1, 2023

  • SME
    Geology And Geochemistry Of The Highland Uranium Deposit Converse County, Wyoming

    By Raymond E. Langen

    Uranium exploration in the Powder River Basin of northeastern Wyoming has been intensive since 1966 and in 1968 produced significant discoveries of reduced uranium ore by Humble Oil & Refining Company

    Jan 1, 1971

  • SME
    Rare-Earth Magnetic Separation Of Heavy Minerals

    By B. R. Arvidson

    Rare-earth elements have some unique properties that are used in many common applications, such as TV screens and lighters. In the 1970's, rare-earths began to be used in a new generation of magn

    Jan 1, 1998

  • SME
    Grade Control and Mine Planning – Observations from the Front

    By D. E. Cameron

    "INTRODUCTION Grade control requirements for base and precious metal projects are an important input to both conceptual and feasibility mine plans. It’s the author’s experience that grade control inpu

    Jan 1, 2018

  • SME
    Lesson Learned During the EPB TBM Launch Using Umbilical and Muck Pump - RETC2021

    By D. Nebbia, R. Aliberti, F. Solesin

    The launch of a Tunnel Boring Machine (TBM) is one of the most challenging activity parts of the construction of a tunnel. Challenges are coming from limited space available, learning curve, concurren

    Jun 13, 2021

  • SME
    Design Build and Design Bid Build Traditional Project Delivery Methods and Modern Industry Trends. What is Most Efficient?

    By Giuseppe M. Gaspari, Tamara Kondrachova

    Contract practices affect cost and schedule of tunneling works, impacting risk allocation between Owners and Contractors. The Authors compiled a dataset of projects constructed in the Toronto Area bet

    Jun 13, 2021

  • SME
    Equipment, Ground Control, And Safety Considerations For Thick-Seam Underground Coal Mining

    By Christopher J. Bise

    The potential of the coal reserves in the western United States for meeting future energy needs has been recognized for quite some time. However, two of the major constraints which have tended to limi

    Jan 1, 1981

  • SME
    Mining Review (e65df0c2-522d-460b-ab57-26cb9205a5d2)

    By J. A. Ober

    "In 2016, the estimated value of total nonfuel mineral production in the United States was $74.6 billion, a slight increase from the revised total of $73.4 billion in 2015 (Table 1). Increased constru

    Jan 5, 2017

  • SME
    Mining Review (54eab27b-b297-46ed-8190-c22725140172)

    By U. S. Geological Survey Staff

    "In 2017, the total estimated value of nonfuel mineral production in the United States increased by 6 percent from 2016 (Table 1). The value of metals produced domestically increased by 12 percent and

    Jan 5, 2018

  • SME
    Control Of An Autogenous Grinding Circuit By Means Of A Crusher ? Introduction

    By W. C. Hellyer

    In an autogenous grinding circuit in which feed at approximately nine inches top size is reduced to a size suitable for subsequent processing, the build- up of a "critical size" fraction in the media

    Jan 1, 1970

  • SME
    Hydrology And Mining In The Tucson Area ? Introduction

    By John W. Harshbarger

    The Upper Santa Cruz Groundwater Basin lies in the drainage area of the Santa Cruz River in Arizona, and extends upstream from the community of Rillito to the international boundary, see Figure 1. The

    Jan 1, 1979

  • SME
    Extracting Value from Simulation Models: Feasibility Grade Control

    By M. E. Rossi

    This paper discusses the use of Conditional Simulation (CS) models to provide mill feed grade profiles for different time periods. The conventional approach of classifying block estimates as ore or wa

    Jan 1, 2019

  • SME
    Mining Review (719a9609-843c-4175-b3bb-2c442f534c3b)

    By Staff

    In 2012, the estimated value of mineral production increased in the United States for the third consecutive year. Production and prices increased for most industrial mineral commodities mined in the U

    May 1, 2013

  • SME
    A new causality and progress theory of coal bump occurred in longwall roadway and corresponding prediction and prevention measures - RASIM2022

    By Dongxu Jia, Chen Cao, Shuangwen Ma, Jun Han, Huibin Ma

    Coal bump, or coal burst, is one of the catastrophic disasters in underground coalmine. Among them, approximate 80% of recorded destructive burst events were occurred in mining roadway. The bump panel

    Apr 26, 2022

  • SME
    The New ICRP Recommendations On Occupational Limits For Radon Daughters

    By W. Jacobi

    INTRODUCTION The radon problem concerns the radiation exposure from inhaled short-lived radon daughters and the associated risk for the induction or promotion of lung cancer. In several groups of m

    Jan 1, 1981

  • SME
    Specifications And Fitness-For-Service In Mining Equipment

    By V. Svalbonas

    Presently the U.S. mining industry is very conscious of costs. It is timely, therefore, to review the dominant specifications used in the industry for procuring large size-reduction equipment. These a

    Jan 1, 1987

  • SME
    Monitoring instrumentation for assessing ARD development at mine sites

    By W. M. Schafer, C. F. Luckay, D. A. King

    Monitoring devices have been installed at several mine sites to assess the potential for the development of acid rock drainage (ARD) in waste rock, spent ore and tailings material. In addition, instru

    Jan 1, 1999

  • SME
    A Discussion on CSM and NTNU Penetration Rate Models

    By E. Farrokh

    CSM and NTNU models are among the most commonly used models in TBM performance evaluation. Due to increasing application of TBM in different tunneling conditions, modification became necessary for the

    Feb 23, 2014

  • SME
    New Record Sized Equipment for the Comminution of Minerals

    By Johann Knecht

    Due to lower specific investment and operating costs the tendency towards large scale equipment will remain. For the design engineers not only the stresses in the mill structure and manufacturing are

    Jan 1, 1993

  • SME
    Pan-European Underground Drainage Water Management Research Centre - A Contribution To Sustainable Water Management In Europe

    By H. Hejny

    The objective of the project is to construct and operate a pan-European underground drainage and minewater management research centre, which would be the hub for data gathering and dissemination in re

    Jan 1, 2007