Heat and Mass Transfer in Cold Regions Soils

The work upon which this report is based was made possible by a cooperative aid agreement between the U.S. Forest Service, Institute of Northern Forestry, Fairbanks, Alaska, and the Institute of Water Resources, University of Alaska. Contributions to this study were also made by the University of California at Davis and Ohio State University. The collection of winter data on pore pressures was made possible by a separate grant by the Office of Water Research and Technology (project A-053 ALAS)

Ripples in the Ice: Employing ogives to deduce glacier behavior

Arcuate glacier structures known as ogives are common to valley glaciers flowing below large icefalls and form annually. Long sequences comprising tens of ogives are often preserved on glacier surfaces. We explore their utility as unique sources of information about glacier behavior. Our investigation concentrates on two main objectives: (1) to assess any correlation between an ogive train and a climate time series, and (2) to evaluate what an ogive-derived velocity profile can reveal about the distribution of ice thickness beneath an ogive field. Using ArcGIS software, we analyze high-resolution satellite imagery of the Gates Glacier ogive sequence in southeastern Alaska to document ogive wavelengths, and to produce down-glacier surface velocity and strain profiles. A comparison of ogive wavelengths with the recent climate history from local weather stations suggests a complex relationship between annual temperature, meltwater inputs, basal sliding, and ogive formation. Finally, we employ surface velocity derived from ogive positions on a sequence of images, and a centerline slope profile (acquired from a digital elevation raster), to invert Glen’s flow law for an estimate of ice thickness. The calculated ice thickness is then translated to a centerline bed profile and ultimately used to construct a three dimensional view of the Gates Glacier valley geometry

Design sensitivity analysis of boundary element substructures

The ability to reduce or condense a three-dimensional model exactly, and then iterate on this reduced size model representing the parts of the design that are allowed to change in an optimization loop is discussed. The discussion presents the results obtained from an ongoing research effort to exploit the concept of substructuring within the structural shape optimization context using a Boundary Element Analysis (BEA) formulation. The first part contains a formulation for the exact condensation of portions of the overall boundary element model designated as substructures. The use of reduced boundary element models in shape optimization requires that structural sensitivity analysis can be performed. A reduced sensitivity analysis formulation is then presented that allows for the calculation of structural response sensitivities of both the substructured (reduced) and unsubstructured parts of the model. It is shown that this approach produces significant computational economy in the design sensitivity analysis and reanalysis process by facilitating the block triangular factorization and forward reduction and backward substitution of smaller matrices. The implementatior of this formulation is discussed and timings and accuracies of representative test cases presented

Higgs boson interactions in supersymmetric theories with large tan beta

We show that radiative corrections to the Higgs potential in supersymmetric theories with large tan beta generically lead to large differences in the light Higgs boson decay branching fractions compared to those of the standard model Higgs boson. In contrast, the light Higgs boson production rates are largely unaffected. We identify W h associated production followed by Higgs boson decays to photons or to leptons via W W* as potential experimental probes of these theories.Comment: 11 pages, 4 figure

The Effect of a 13-Week, Multi-Phasic, Strength Training Program on Throwing Velocity of Elite Pitchers: an Applied Study

The problem was to determine if a strength and conditioning program can increase throwing velocity of SUNY Brockport and Clarkson University varsity baseball pitchers. Participants were members of the SUNY Brockport and Clarkson University pitching staff. Thirteen participants made six throws prior to and at the conclusion of a thirteen week strength and conditioning program. Participants engaged in the program four days per week, which included daily stretching, two strength-based phases, and a plyometric phase. There was an increase in strength in all exercises of the training program, and an increase in throwing velocity from the pre to the post-test

Corn Stover\u27s Feasibility as a Biomass Feedstock Utilizing the REACH Process

Kane, Oskar J. S. MS, Purdue University, December 2016. Corn Stover’s Feasibility as a Biomass Feedstock Utilizing the “REACH” Process. Major Professor: Dr. Gozdem Kilaz