Mining Engineering Commons^™

Characterizing The Variability In Respirable Dust Exposure Using Johnson Transformation And Re-Examining 2010 Proposed Changes To The U.S. Underground Coal Mine Dust Standard, Al I. Khan

Theses and Dissertations--Mining Engineering

Coal workers’ pneumoconiosis (CWP), commonly referred to as black lung, is a chronic lung disease that results from the inhalation and deposition of coal dust in the lungs. While this disease continues to afflict coal miners, its prevalence has steadily declined over three decades since 1970. Based on a voluntary X-ray surveillance program, conducted by the National Institute for Occupational Safety and Health (NIOSH), this downward trend, however, ended in 2000 and has actually begun to rise. The Mine Safety and Health Administration (MSHA) instituted a Comprehensive Initiative to “End Black Lung” to combat the reported upturn in black lung ...

A Framework For Understanding The Public's Perspectives Of Mining Applied To The Kentucky Coal Industry, Joshua M. Hoffman

Theses and Dissertations--Mining Engineering

People’s perceptions of mining are heavily based on the media they consume and the messages therein. News outlets ordinarily report on mining only when there is an accident or environmental concern. When messages that the public is exposed to are negative, it is no wonder that there are negative perceptions about mining.

Current public relations campaigns on the behalf of specific companies or select sectors do exist; however, this is often a reactionary move in response to recent shifts in the socio-political environment. The details of these campaigns are often tied up in proprietary information or withheld by public ...

Selecting An Electrical Power Source At The Scoping Level For A Mining Project, Christopher Dawson Van Arsdale

Theses and Dissertations

The electrical power source is a critical component of the scoping level study as the source affects both the project economics and timeline. This paper proposes a systematic approach to selecting an electrical power source for a new mine. Orvana Minerals Copperwood project is used as a case study. The Copperwood results show that the proposed scoping level approach is consistent with the subsequent much more detailed feasibility study.

Development Of 15 Psi Safe Haven Polycarbonate Walls For Use In Underground Coal Mines, Rex Allen Meyr Jr.

Theses and Dissertations--Mining Engineering

Following three major mining accidents in 2006, the MINER Act of 2006 was enacted by MSHA and required every underground coal mine to install refuge alternatives to help prevent future fatalities of trapped miners in the event of a disaster. The following research was performed in response to NIOSH’s call for the investigation into new refuge alternatives. A 15 psi safe haven polycarbonate wall for use in underground coal mines was designed and modeled using finite element modeling in ANSYS Explicit Dynamics. The successful design was tested multiple times in both half-scale and small scale using a high explosive ...

Experimental Comparison Study Of The Response Of Polycarbonate And Laminated Glass Blast Resistant Glazing Systems To Blast Loading, Joshua Calnan

Theses and Dissertations--Mining Engineering

This thesis recounts the experimental study of the dynamic response of polycarbonate blast resistant glazing systems to explosive loading through the use of triaxial load cells, pressure sensors, and a laser displacement gauge. This instrumentation captured the response of the glazing systems to blast loading over three phases of testing. The first phase of testing characterizes the load distribution around the perimeter and the second phase examines the repeatability of the results. The final phase of testing pushes the samples to failure. The results are then compared to HazL, a commonly used blast resistant glazing system analysis software tool. The ...

Power And Politics In Organizations, T. W. Camm

Mining Engineering

Aristotle made the observation that man is a political animal. Engineers often like to think they are above the fray when it comes to organizational politics, but most organizational theorists believe politics is a fundamental dynamic in any group. This paper examines the various ways that people use power within organizations to negotiate the political interactions in the work place.

Knott, James Proctor, 1830-1911 (Sc 640), Manuscripts & Folklife Archives

MSS Finding Aids

Finding aid only for Manuscripts Small Collection 640. Letter from James Proctor Knott, Washington, D.C., to Adolph Sutro, (Virginia City, Nevada?) the mining engineer who directed the construction of a tunnel for more efficient mining into the Comstock Lode after receiving the right of way through public lands by an act of Congress. Knott, U.S. Representative from Kentucky, affirms that Sutro has his support.

Studies In Shallow And Thin-Film Flows, Md Mahmuder R. Faisal

Electronic Thesis and Dissertation Repository

The present study examines the influences of surface tension and wind direction in shallow or thin-film flow with the inclusion of inertial effect. In this present study starting with the fundamental equations (conservation of mass and momentum), an analytical method is introduced to determine the bottom stress at different position of a shallow or thin-film flow domain under the influence of oscillatory wind conditions. The novelty of this study is that the viscous and surface tension effects are considered in this study, whereas in most of the existing studies in a shallow or thin-film flow domain (a shallow tailings pond ...

Investigating Planer Propagation Of A Shockwave In A Shock Tunnel, John Rathbun, Dave Mclane

Kaleidoscope

No abstract provided.

Geometric Variables Shock-Tunnel Configurations And Their Effects On Pressure-Time Waveforms, Chase W. Guengerich, Mark A. Faulhaber

Kaleidoscope

No abstract provided.

Development And Validation Of A Model For Granular Material Volume Measurements, Pourya Fasounaki

Industrial and Management Systems Engineering -- Dissertations and Student Research

Keeping inventory record of packed grains in silos poses challenges since the bulk material’s different segments do not discharge uniformly, leading to formation of random peaks and valleys on the surface. To facilitate obtaining accurate volume measurement of the grains by taking into account this non-linear behavior on the surface, laser or plumb-bob level-sensing devices are employed at different part of the surface to probe the level of material under those regions.

The main goals of this research is to study the behavior of granular material in silo while discharging downward and by doing so, differentiate certain flow patterns ...