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Physical Sciences and Mathematics Commons™
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Full-Text Articles in Physical Sciences and Mathematics
Gettysburg College Sustainability Proposal, Joseph W. Boone, Andrea Carson, Sarah F. Hecklau, Erik J. Hughes, Catherine A. Leech, Taylor J. Mcgrath, Nicole L. Moody, Christian I. Neumann, Mary K. Ranii, John D. Ryder, Megan Sherman, Sara W. Tower, Sarah Weinstein
Gettysburg College Sustainability Proposal, Joseph W. Boone, Andrea Carson, Sarah F. Hecklau, Erik J. Hughes, Catherine A. Leech, Taylor J. Mcgrath, Nicole L. Moody, Christian I. Neumann, Mary K. Ranii, John D. Ryder, Megan Sherman, Sara W. Tower, Sarah Weinstein
Student Publications
In the fall of 2011, the Environmental Studies capstone class led by Professor Rutherford Platt was asked to write Gettysburg College’s first Sustainability Plan. The goal of the plan was to develop specific sustainable practices for the campus that were related to the three pillars of sustainability: economic, social, and environmental, and how integrating diligent sustainable practices into each of these respected pillars will result in a more conscious campus, community, and future. In 2010, Gettysburg College turned to the Sustainability Tracking Assessment and Rating System (STARS) to quantify the institution’s sustainability efforts, providing a self-check mechanism to encourage sustainability …
Local Origins Of Volume Fraction Fluctuations In Dense Granular Materials, James G. Puckett, Frederic Lechenault, Karen E. Daniels
Local Origins Of Volume Fraction Fluctuations In Dense Granular Materials, James G. Puckett, Frederic Lechenault, Karen E. Daniels
Physics and Astronomy Faculty Publications
Fluctuations of the local volume fraction within granular materials have previously been observed to decrease as the system approaches jamming.We experimentally examine the role of boundary conditions and interparticle friction μ on this relationship for a dense granular material of bidisperse particles driven under either constant volume or constant pressure.Using a radicalVorono¨ı tessellation, we find the variance of the local volume fraction φ monotonically decreases as the system becomes more dense, independent of boundary condition and μ. We examine the universality and origins of this trend using experiments and the recent granocentric model, modified to draw particle locations from an …
A Nonnegative Analysis Of Politics, Tim Chartier, Charles D. Wessell
A Nonnegative Analysis Of Politics, Tim Chartier, Charles D. Wessell
Math Faculty Publications
The article investigates how linear algebra can recover mathematical information from the electronic messages using the Enron Email Sets in Pennsylvania. It states that a term-by-email matrix has been created to cluster algorithm, which allows one to mine through data and discover meaning. Moreover, nonnegative matrix factorization (NMF) enables one to interpret the resulting factorization in terms of the original problem.