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Full-Text Articles in Mining Engineering

Feed Control: Composite Recycle, Rosy Perez Jan 2019

Feed Control: Composite Recycle, Rosy Perez

All Undergraduate Projects

The Boeing Company gave Central Washington University an opportunity for students to research and come up with an idea to reduce costs and landfill waste caused by the trimmings from the 777x composite wing pieces. The engineering and manufacturing for this project is about transporting composite material through to the delamination and chipper process. The delamination process uses a ram to press two claw shaped devices together that bends and deforms the material in opposite directions. The chipper process uses counter rotating saw blades spaced 1/8” apart to produce small shredded material. It is important for this newly designed feed …


Liberty's Last Post Office: A Story Of A Gold Mining Camp In Washington State, Wesley C. Engstrom Mar 2016

Liberty's Last Post Office: A Story Of A Gold Mining Camp In Washington State, Wesley C. Engstrom

Works by Local Authors

There was once a large center of activity in the Swauk Basin of upper Kittitas County. The place is called Liberty. Liberty was once the most action packed place in Kittitas County. At least it was for a while after gold was discovered in Swauk Creek. Like many gold camps the place boomed and ebbed over the years. Unlike some other places it never quite went completely bust. It came close, and fortunately for some it didn’t. It still exists today as a living ghost town.

The Liberty story has been told before in various ways. This telling of the …


Experiments To Measure The Effects Of Timber Harvesting Equipment On Surface Lithic Scatters, Douglas J. Baughman Jan 2013

Experiments To Measure The Effects Of Timber Harvesting Equipment On Surface Lithic Scatters, Douglas J. Baughman

All Master's Theses

The importance of cultural resource preservation cannot be overstated; however local economies are at least as important. Due to conservative archaeological site protection practices in Region 5 of the United States Forest Service, the economy of Northeastern California is being adversely affected. In an attempt to help the Forest Service make more informed management decisions and improve the Northeastern California economy, I undertook experiments on the effects of timber harvesting on lithic scatters on Modoc National Forest. The experiments involved placement of 225 glass tiles (proxy lithics) in each of three plots subject to vehicle traffic and log dragging by …