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2013

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Overcoming Cubesat Downlink Limits With Vitamin: A New Variable Coded Modulation Protocol, Thomas Sielicki Dec 2013

Overcoming Cubesat Downlink Limits With Vitamin: A New Variable Coded Modulation Protocol, Thomas Sielicki

Engineering

Many space missions, including low earth orbit CubeSats, communicate in a highly dynamic environment because of variations in geometry, weather, and interference. At the same time, most missions communicate using fixed channel codes, modulations, and symbol rates, resulting in a constant data rate that does not adapt to the dynamic conditions. When conditions are good, the fixed date rate can be far below the theoretical maximum, called the Shannon limit; when conditions are bad, the fixed data rate may not work at all. To move beyond these fixed communications and achieve higher total data volume from emerging high-tech instruments, this …

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Modeling And Analysis Of Masonry Electro-Thermal Heating And Storage For Optimal Integration With Remote Stand-Alone Wind-Diesel Systems, Maura Eileen Sateriale Dec 2013

Modeling And Analysis Of Masonry Electro-Thermal Heating And Storage For Optimal Integration With Remote Stand-Alone Wind-Diesel Systems, Maura Eileen Sateriale

Engineering

Due to their remote locations and small populations, many remote villages in Alaska generate electricity with microgrids that employ diesel-electric generators for their primary source of power, and supplement this production with wind turbines. In such communities, it is economically advantageous to minimize fuel consumption by shifting as much of the village's energy demands to the wind system as is feasible. When wind turbines produce in excess of the demand, it is possible to use the excess electricity to power resistance heaters to heat water in tanks or masonry. The heat is then stored so that it can be used …

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Ataam Taikina: Traditional Knowledge And Conservation Ethics In The Yukon River Delta, Alaska, Chad M. Cook Dec 2013

Ataam Taikina: Traditional Knowledge And Conservation Ethics In The Yukon River Delta, Alaska, Chad M. Cook

Arctic and Northern Studies

This research was conducted in collaboration with rural Yup'ik residents of the Yukon River delta region of Alaska. The thesis explores traditional knowledge and conservation ethics among rural Yup'ik residents who continue to maintain active subsistence lifestyles. From the end of July through August of 2012, ethnographic field research was conducted primarily through participant observation and semi-structured interviews, documenting Yup'ik subsistence hunting and fishing practices. Research participants invited me beluga whale hunting, seal hunting, moose hunting, commercial and subsistence fishing, gathering berries, and a variety of other activities that highlights local Yup'ik environmental knowledge, practices, and ethics. Through firsthand examples …

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Improving The Renovation, Repair And Painting Training Course To Eliminate Childhood Lead Poisonings: Wisconsin Observations, Anke M. Hildebrandt Dec 2013

Improving The Renovation, Repair And Painting Training Course To Eliminate Childhood Lead Poisonings: Wisconsin Observations, Anke M. Hildebrandt

Arctic and Northern Studies

In 2011, I worked briefly with the Asbestos and Lead Program for the State of Wisconsin. It was my job to conduct audits of our training providers as well as on-site inspections of work sites. During my time there I discovered a real disconnect between what I saw in the field and what is taught in class. Wisconsin has its own lead rules that are more stringent than the EPA's. After taking a critical look at the EPA's Renovation, Repair and Painting Rule (RRP) curriculum, I saw where the problems lay. The required hands-on training does not present the skills …

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Online Social Media As A Social-Ecological Systems Research Tool: Facebook And Two Rural Alaskan Communities, Richard E. Hum Dec 2013

Online Social Media As A Social-Ecological Systems Research Tool: Facebook And Two Rural Alaskan Communities, Richard E. Hum

Rural Development

The earth has transitioned into the anthropocene, which is defined by complex environmental change linked to human behavior and requires new tools of analysis in order to understand shifting social-ecological system (SES) dynamics. In this work, I explore taking advantage of widespread online social media participation to develop the tools for doing so. Spatially grounded public exchanges on Facebook are examined with three goals in mind: 1) examine the types of SES content being passed through this communication medium, 2) compare community observations to relevant scientific observations, and 3) define a flexible and reproducible research method for integrating these communications …

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Academic, Behavioral And Social Intervention Strategies For Elementary Children With Autistic Spectrum Disorder, Kristin Flora Dec 2013

Academic, Behavioral And Social Intervention Strategies For Elementary Children With Autistic Spectrum Disorder, Kristin Flora

Counseling

Students with Autism Spectrum Disorder (ASD) experience academic, behavioral and social challenges that can interfere with their ability to participate fully in the school environment. School districts are legally mandated to provide services to students with disabilities. This paper provides definitions of ASD, addresses some of the diagnostic testing instruments, describes theoretical approaches, and looks at three evidence-based intervention strategies that could be utilized by a school counselor and staff members to work effectively with students with autism. The first is applied behavioral analysis (ABA) which centers on teaching small, measurable units of behavior systematically. The second intervention is assistive …

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Potential Improvements To National Park Service Visitor Surveys And Money Generation Modeling In Alaska, Steve Colt, Ginny Fay, Virgene Hanna Dec 2013

Potential Improvements To National Park Service Visitor Surveys And Money Generation Modeling In Alaska, Steve Colt, Ginny Fay, Virgene Hanna

ISER Reports

This study presents options for improving the use of the Money Generation Model in National Park Service (NPS) land units in Alaska. The Money Generation Model (MGM) is used nationwide to model economic impacts of visitation to public lands, including National Park Units. This analysis identifies potential improvements to the application of the MGM model and visitor survey processes for use in Alaska. Improvements include changes to visitor intercept methods to improve statistical reliability of the sampling process and a more representative sample, changes in the survey instrument to more accurately reflect Alaska visitor travel and expenditure patterns, and better …

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December 17, 2013 Ereporter, University Of Alabama At Birmingham Dec 2013

December 17, 2013 Ereporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

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Bride-Stealing: A Myth Of Misogyny, Seetha Murugesan Dec 2013

Bride-Stealing: A Myth Of Misogyny, Seetha Murugesan

Indigenous Studies

Bride-stealing, an explicit symbolic misogynistic action in The Iliad and The Kamba Ramayanam, is analyzed as a long-term patterned conduct of human behavior among the peoples who produced these works. The systematic pattern of bride stealing found in the epics discussed suggests that within these groups social constructs had always been in favor of female inferiority and subjugation. This places an emphasis on gender as an issue, manifested in the treatment of women by men as "others." The narrations of marginalization of women in the epics lead to a critique of the hypothesis that they are misogynistic. Here a framework …

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Condition Assessment Of Decommissioned Bridge Decks Treated With Waterproofing Membranes And Asphalt Overlays, Eric Scott Sumsion Dec 2013

Condition Assessment Of Decommissioned Bridge Decks Treated With Waterproofing Membranes And Asphalt Overlays, Eric Scott Sumsion

Theses and Dissertations

The objective of this research was to assess the condition of four decommissioned bridge decks treated with waterproofing membranes and asphalt overlays following the completion of their service lives. Large samples were cut from each of the bridge decks immediately prior to demolition and taken to the Brigham Young University Highway Materials Laboratory, where extensive sampling and testing was performed. Methods used to evaluate the condition of the bridge deck samples included visual inspection, hammer sounding, Schmidt rebound hammer testing, resistivity testing, half-cell potential testing, linear polarization testing, cover depth measurement, and chloride concentration measurement. The samples were removed from …

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Remote Sensing Of Arctic Landscape Dynamics, Benjamin M. Jones Dec 2013

Remote Sensing Of Arctic Landscape Dynamics, Benjamin M. Jones

Geosciences

Amplified warming in the Arctic has likely increased the rate of landscape change and disturbances in northern high latitude regions. Remote sensing provides a valuable tool for assessing the spatial and temporal patterns associated with arctic landscape dynamics over annual, decadal, and centennial time scales. In this dissertation, I focused on remote sensing studies associated with four primary components of arctic landscape change and disturbance: (1) permafrost coastline erosion, (2) thermokarst lake dynamics, (3) tundra fires, and (4) using repeat airborne LiDAR for the measurement of vertical deformation in an arctic coastal lowland landscape. By combining observations from several high …

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Three Dimensional Volcano-Acoustic Source Localization At Karymsky Volcano, Kamchatka, Russia, Colin Rowell Dec 2013

Three Dimensional Volcano-Acoustic Source Localization At Karymsky Volcano, Kamchatka, Russia, Colin Rowell

Geosciences

We test two methods of 3-D acoustic source localization on volcanic explosions and small-scale jetting events at Karymsky Volcano, Kamchatka, Russia. Recent infrasound studies have provided evidence that volcanic jets produce low-frequency aerodynamic sound (jet noise) similar to that from man-made jet engines. Man-made jets are known to produce sound through turbulence along the jet axis, but discrimination of sources along the axis of a volcanic jet requires a network of sufficient topographic relief to attain resolution in the vertical dimension. At Karymsky Volcano, the topography of an eroded edifice adjacent to the active cone provided a platform for the …

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Satellite To Model Comparisons Of Volcanic Ash Emissions In The North Pacific, Torge S. Steensen Dec 2013

Satellite To Model Comparisons Of Volcanic Ash Emissions In The North Pacific, Torge S. Steensen

Geosciences

To detect, analyze and predict the movement of volcanic ash in real time, dispersion models and satellite remote sensing data are important. A combination of both approaches is discussed here to enhance the techniques currently used to quantify volcanic ash emissions, based on case studies of the eruptions of the Kasatochi (Alaska, USA, 2008), Mount Redoubt (Alaska, USA, 2009) and Sarychev Peak (Russia, 2009) volcanoes. Results suggest a quantitative approach determining masses from satellite images can be problematic due to uncertainties in knowledge of input values, most importantly the ground surface temperature required in the mass retrieval. Furthermore, a volcanic …

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A Pil1–Sle1–Syj1–Tax4 Functional Pathway Links Eisosomes With Pi(4,5)P2 Regulation, Ruth Kabeche, Assen Roguev, Nevan J. Krogan, James B. Moseley Dec 2013

A Pil1–Sle1–Syj1–Tax4 Functional Pathway Links Eisosomes With Pi(4,5)P2 Regulation, Ruth Kabeche, Assen Roguev, Nevan J. Krogan, James B. Moseley

Dartmouth Scholarship

Stable compartments of the plasma membrane promote a wide range of cellular functions. In yeast cells, cytosolic structures called eisosomes generate prominent cortical invaginations of unknown function. Through a series of genetic screens in fission yeast, we found that the eisosome proteins Pil1 and Sle1 function with the synaptojanin-like lipid phosphatase Syj1 and its ligand Tax4. This genetic pathway connects eisosome function with the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PI(4,5)P2] in cells. Defects in PI(4,5)P2 regulation led to eisosome defects, and we found that the core eisosome protein Pil1 can bind to and tubulate liposomes containing PI(4,5)P2. Mutations in components of …

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Alaska Energy Statistics 1960-2011 Final Report, Ginny Fay, Alejandra Villalobos Meléndez, Corinna West Dec 2013

Alaska Energy Statistics 1960-2011 Final Report, Ginny Fay, Alejandra Villalobos Meléndez, Corinna West

ISER Reports

This twenty-sixth edition of the Alaska Energy Statistics reconciles energy data from public sources and makes that data more easily available to the public and stakeholders. It primarily presents 2011 data on electricity produced by certified utilities in Alaska. It includes a brief introduction, highlights, and summary data tables. The first major section describes basic statistical indicators for Alaska utilities, and the second discusses renewable energy in Alaska. After that we look more broadly at the big picture of energy in Alaska, describing production and consumption of various energy sources. A series of appendixes defines terms, lists references, and describes …

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Frost Susceptibility Of Base Materials Treated With Asphalt Emulsion, Noelle Anderson Dec 2013

Frost Susceptibility Of Base Materials Treated With Asphalt Emulsion, Noelle Anderson

Theses and Dissertations

The objective of this research was to investigate emulsion-treated base (ETB) frost susceptibility in terms of both freeze-thaw cycling and frost heave. The research performed in this study involved laboratory testing of ETB materials sampled from both the Redwood Road and 7800 South reconstruction projects in northern Utah. The effects of freeze-thaw cycling were evaluated by comparing the stiffness and strength of tested specimens to the same properties of control specimens not subjected to freeze-thaw cycling. Frost heave testing enabled evaluation of the effects of emulsion content and degree of curing on the volumetric stability of ETB materials during sustained …

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Modeling Winter Severity And Harvest Of Moose: Impacts Of Nutrition And Predation, Cameron Jewett Carroll Dec 2013

Modeling Winter Severity And Harvest Of Moose: Impacts Of Nutrition And Predation, Cameron Jewett Carroll

Biological Sciences

Climate change is expected to have both positive and negative impacts on northern ungulate populations. Moose (Alces alces) will likely benefit from an increase in the growing season length and frequency of wildfire. However, increases in extreme weather events may result in moose population declines, particularly for nutritionally stressed moose populations. Management strategies to reduce the nutritional stress of populations may become increasingly important. We used stage-structured population models to examine the impact of deep-snow events on moose population trajectories and evaluated female harvest strategies designed to mitigate nutritional stress by decreasing intraspecific competition. Population trajectories were primarily influenced by …

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A Review Of Oil Spill History And Management On The North Slope Of Alaska, Amanda Davila Dec 2013

A Review Of Oil Spill History And Management On The North Slope Of Alaska, Amanda Davila

Engineering

Alaska has an abundance of natural resources including oil, natural gas and coal. It is critical to minimize the occurrence of oil spills to ensure protection of Alaska's people and the environment. The objective of this project is twofold. One is to provide a quantification of the number of spills on the North Slope (NS) as well as the number of contaminated sites that are generated, describe the regulatory requirements for the Arctic zone, and discuss cleanup methods. Second is to describe the ADEC regulations as they pertain to terrestrial oil spills. The region of study begins north of Alyeska's …

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A Departmental Focus On High Impact Undergraduate Research Experiences, Robin Kinnel, Adam W. Van Wynsberghe, Ian J. Rosenstein, Karen S. Brewer, Myriam Cotten, George C. Shields, Charles J. Borton, Sueann Z. Senior, Gregory S. Rahn, Timothy E. Elgren Dec 2013

A Departmental Focus On High Impact Undergraduate Research Experiences, Robin Kinnel, Adam W. Van Wynsberghe, Ian J. Rosenstein, Karen S. Brewer, Myriam Cotten, George C. Shields, Charles J. Borton, Sueann Z. Senior, Gregory S. Rahn, Timothy E. Elgren

Faculty Journal Articles

Undergraduate research experiences have become an integral part of the Hamilton College chemistry experience. The major premise of the chemistry department’s curriculum is that research is a powerful teaching tool. Curricular offerings have been developed and implemented to better prepare students for the independence required for successful undergraduate research experiences offered during the academic year and the summer. Administrative support has played a critical role in our ability to initiate and sustain scholarly research programs for all faculty members in the department. The research-rich curriculum is built directly upon or derived from the scholarly research agendas of our faculty members. …

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Developing Guidelines For Including Mobility-Based Performance Specifications In Highway Construction Contracts, Shawn J. Larson Dec 2013

Developing Guidelines For Including Mobility-Based Performance Specifications In Highway Construction Contracts, Shawn J. Larson

Theses and Dissertations

Construction zones can greatly affect the traffic flow on roadways, especially when lane closures are required. Traditionally, the Utah Department of Transportation (UDOT) has used traffic management specifications that only allow lane closures and road work to be done during predetermined hours or specifications that require a certain number of lanes to be open at all times. Recently, mobility-based work-zone traffic flow maintenance has been considered. This method requires continuous monitoring of mobility-based performance data and a mechanism to send alerts to the contractors when the mobility data does not meet the standards set by the specifications. UDOT recently tested …

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A Kinetic Study Of Aqueous Calcium Carbonate, Derek Daniel Harris Dec 2013

A Kinetic Study Of Aqueous Calcium Carbonate, Derek Daniel Harris

Theses and Dissertations

Amorphous calcium carbonate (ACC) precipitation is modeled using particle nucleation, growth, and aggregation. The particles are tracked in terms of their radial size and particle density using direct quadrature method of moments (DQMOM). Four separate nucleation models are implemented and are compared to experimental data. In discord with a recent study, it is shown that classical nucleation, coupled with equilibrium chemistry, is in good agreement with experimental data. Novel nucleation mechanisms are presented which fit the experimental data with slightly greater accuracy. Using equilibrium chemistry it is shown that the equilibrium value of ACC is pKeq = 7.74 at 24C, …

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Study Of The Crafting Industry In Croatia: Insight Into Individual, Sara Milic Dec 2013

Study Of The Crafting Industry In Croatia: Insight Into Individual, Sara Milic

Theses

This research explores several elements of the Croatian crafting scene; individual motivations of crafters, how the community functions and common business practices. The study is qualitative and part phenomenological, part ethnographic in nature. The main goal was to collect information and data that can act as a foundation for further research. The key methods were in-depth interviews with several Croatian crafters, observation at crafting events and content analysis of online sources and promotional material. The main findings showed that many crafters obtain artistic fulfilment from their art, some turned to crafting out of financial necessity and others were seeking independence. …

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Method For Modeling And Parameter Extraction Of Ldmos Devices, Avinash S. Kashyap, H. Alan Mantooth Dec 2013

Method For Modeling And Parameter Extraction Of Ldmos Devices, Avinash S. Kashyap, H. Alan Mantooth

Patents Granted

A method for modeling the performance of a laterally diffused metal oxide semiconductor (LDMOS) device across a wide temperature range is disclosed. The method comprises the steps of positioning the device in an environment chamber operable to create a plurality of environment temperatures; connecting the pins of the device to a measurement system operable to measure at least one device characteristic; operating the environment chamber to set a series of four environment temperatures, acquiring a value of the device characteristic from the measurement system at each temperature, and extracting a temperature parameter set based on the value of the device …

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Using The Generalized Interpolation Material Point Method For Fluid-Solid Interactions Induced By Surface Tension, Liangbiao Chen, N/A 陈 良彪 Dec 2013

Using The Generalized Interpolation Material Point Method For Fluid-Solid Interactions Induced By Surface Tension, Liangbiao Chen, N/A 陈 良彪

Engineering

This thesis is devoted to the development of new, Generalized Interpolation Material Point Method (GIMP)-based algorithms for handling surface tension and contact (wetting) in fluid-solid interaction (FSI) problems at small scales. In these problems, surface tension becomes so dominant that its influence on both fluids and solids must be considered. Since analytical solutions for most engineering problems are usually unavailable, numerical methods are needed to describe and predict complicated time-dependent states in the solid and fluid involved due to surface tension effects. Traditional computational methods for handling fluid-solid interactions may not be effective due to their weakness in solving large-deformation …

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Observation And Analysis On The Characteristics Of Strain Induced By Frost Heave For A Full-Scale Buried, Chilled Gas Pipeline, Kun Yang Dec 2013

Observation And Analysis On The Characteristics Of Strain Induced By Frost Heave For A Full-Scale Buried, Chilled Gas Pipeline, Kun Yang

Engineering

This thesis examines the strain characteristics of a large-scale, buried chilled gas pipeline in the discontinuous permafrost region. A full-scale chilled pipeline gas experiment was conducted in Fairbanks, Alaska. The test pipeline had a length of 105 m and a diameter of 0.9 m. One-third of the pipeline was located in permafrost and the rest was in non-permafrost. The monitoring data were collected from December 1999 to January 2005 including both freezing and thawing phases. In the transition zone between frozen and unfrozen soil, the foundation experienced a vertical movement caused by differential frost heave. The test results indicated that …

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Decline Curve Analysis And Enhanced Shale Oil Recovery Based On Eagle Ford Shale Data, Dieudonne K. Delaihdem Dec 2013

Decline Curve Analysis And Enhanced Shale Oil Recovery Based On Eagle Ford Shale Data, Dieudonne K. Delaihdem

Engineering

Transient and fracture dominated flow regimes in tight permeability shale reservoirs with hydraulically fractured horizontal wells impose many unconventional challenges. These include execution of appropriate shale decline curve analysis and the optimization of hydrocarbons recovery. Additionally, short production profiles available are inadequate for accurate production decline analysis. This research assessed the effectiveness of Arps' decline curve analysis and recently established methods--power law exponential analysis, logistic growth analysis, Duong's method and the author's approach--to predict future production of horizontal wells in the Eagle Ford Shale. Simulation models investigated history matching, enhanced shale oil recovery, and drainage area beyond stimulated reservoir volume. …

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Performance Analysis Of Three Nanofluids In Liquid To Gas And Liquid To Liquid Heat Exchangers, Dustin R. Ray Dec 2013

Performance Analysis Of Three Nanofluids In Liquid To Gas And Liquid To Liquid Heat Exchangers, Dustin R. Ray

Engineering

One purpose of this research was to analyze the thermal and fluid dynamic performance of nanofluids in an automotive radiator (liquid to gas). Detailed computations were performed on an automotive radiator using three different nanofluids containing aluminum oxide, copper oxide and silicon dioxide nanoparticles dispersed in the base fluid, 60:40 ethylene glycol and water (EG/W) by mass. The computational scheme adopted was the effectiveness-Number of Transfer Unit (� -- NTU) method encoded in Matlab. The computational scheme was validated by comparing the predicted results with that of the base fluid reported by other researchers. Then, the scheme was adapted to …

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Analysis Of An Oscillating Plate Coupled With Fluid, Michael J. Nash Dec 2013

Analysis Of An Oscillating Plate Coupled With Fluid, Michael J. Nash

Engineering

The mechanical vibration of an oscillating cantilever plate is studied to determine the interaction of a plate coupled with air and with water. Experimental data was collected and analyzed using multiple methods including Fast Fourier Transform, wavelet analysis, and the Hilbert-Huang Transform (HHT) to characterize the behavior of the plate. The HHT is able to process nonlinear and nonstationary signals and provides more meaningful information compared to the traditionally used Fourier transform for similar applications. The HHT was found to be appropriate and more descriptive for the analysis of coupled fluid-structure systems. Digital Particle Image Velocimetry (DPIV) was also used …

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Response Of Pile-Guided Floats Subjected To Dynamic Loading, Zhili Quan, N/A 权致力 Dec 2013

Response Of Pile-Guided Floats Subjected To Dynamic Loading, Zhili Quan, N/A 权致力

Engineering

Pile-guided floats can be a desirable alternative to stationary berthing structures. Both floats and guide piles are subjected to time varying (dynamic) forces such as wind-generated waves and impacts from vessels. There is little design information available concerning the dynamic load environment to which the floats will be subjected. So far, the most widely acceptable method used in offshore structure design is the Kinetic Energy Method (KEM). It is a simplified method that is based on the conservation of energy. This approach is straightforward and easy to implement. However, in spite of its simplicity and straightforwardness, the method lacks accuracy. …

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Online Social Networks To The Rescue: Fulfilling The Ten Essential Public Health Services, Melanie D. Mason, Maureen P. Bezold Dec 2013

Online Social Networks To The Rescue: Fulfilling The Ten Essential Public Health Services, Melanie D. Mason, Maureen P. Bezold

Frontiers in Public Health Services and Systems Research

Budget cuts and shortages in the public health workforce have contributed to the reduction of public health services in 91% of state health departments (SHDs). To adjust for these changes, health departments must discover novel ways to deliver essential public health services to their constituents. Researchers conducted a retrospective analysis of the content published on SHDs’ Twitter pages to determine if online social networks were used to fulfill the ten essential public health services. While 42 SHDs had a Twitter page, the volume and content of tweets varied. Although tweets were posted that related to all ten of the essential …

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