• UAF Libraries Faculty and Researchers Library Use Survey Fall 2007

      Jensen, Karen; Lehman, Lisa; Christie, Anne; Ruess, Diane (2007-11-21)
      Triennial campus-wide UAF libraries use survey, summary of results for faculty and researchers.
    • UAF Libraries Faculty and Researchers Library Use Survey Fall 2010

      Jensen, Karen; Christie, Anne; Lehman, Lisa; Ruess, Diane (2010-11-09)
      Triennial campus-wide UAF libraries use survey, summary of results for faculty and researchers.
    • UAF Libraries Graduate Student Library Use Survey Fall 2007

      Jensen, Karen; Lehman, Lisa; Ruess, Diane; Christie, Anne (2007-11-21)
    • UAF Libraries Graduate Student Library Use Survey Fall 2010

      Adasiak, Paul; Jensen, Karen; Christie, Anne; Lehman, Lisa; Ruess, Diane (2010-11-09)
      Triennial campus-wide UAF libraries use survey, summary of results for graduate students.
    • UAF Libraries Undergraduate Student Library Use Survey Fall 2007 

      Jensen, Karen; Ruess, Diane; Lehman, Lisa; Christie, Anne (2007-12-11)
      Triennial campus-wide UAF libraries use survey, summary of results for undergraduate students.
    • UAF Libraries Undergraduate Student Library Use Survey Fall 2010

      Adasiak, Paul; Jensen, Karen; Christie, Anne; Lehman, Lisa; Ruess, Diane (2010-11-09)
      Triennial campus-wide UAF libraries use survey, summary of results for undergraduate students.
    • Ugnu pilot area - simulation model and sensitivity analysis

      Wooster, Arin J.; Dandekar, Abhijit; Ning, Samson; Zhang, Yin (2020-05)
      Collaborating with Hilcorp Alaska, LLC, the Ugnu pilot area is the subject of this project. Hilcorp Alaska is conducting field pilot test at Milne Point Field to prove commerciality with Ugnu heavy oil as well as an on-going Milne viscous oil polymer flood field pilot test in the Schrader Bluff sands. The Ugnu sand heavy oil represents much of the heavy oil on Alaska’s North Slope and has potential for future development. Typical heavy oil has a viscosity of 1,000 - 10,000 centipoise, approximately akin to viscosities of honey and molasses, respectively. North Slope heavy oil is located around 3,000-foot depths and typically overlays existing fields. The project involves a reservoir simulation model and sensitivity analysis to support developmental drilling plans from a Milne Point Unit pad. Necessary geologic and reservoir properties were provided for usage in this project by Hilcorp. Production data was provided for history matching. Field geologic background was also supplied to aid in the understanding of the reservoir. The reservoir simulation model was built using Computer Modelling Group software, namely Builder and IMEX. The first model iteration contained one producer in an 8,500-foot lateral pattern. Further iterations included additional producers and injectors for waterflood and polymer flood studies. Conclusions and recommendations were drawn upon analyzing the reservoir simulation results centering around favorable production strategies, polymer flood performance, comparison to the on-going Milne viscous oil polymer flood pilot, and future polymer flood studies. Completed objectives of this project included: 1. Developing a numerical reservoir simulation model for the Ugnu MB sand in the pilot area; 2. Evaluating the productivity of horizontal wells in the Ugnu MB sand; 3. Predicting ultimate oil recovery with waterflood and polymer flood; 4. Predicting polymer utilization, polymer injected per incremental oil barrels over waterflood.
    • Unangam Tunuu

      Berge, Anna; Dirks, Moses (2016-06)
      This workshop prepares the student for the 3-week practicum focusing on fieldwork on a sleeping or less accessible language using archival materials; the language we focus on (for both the workshop and practicum) is Unangam Tunuu (Eastern Aleut, ISO 6390ale). The workshop class will cover the language and cultural history, linguistic structure, the history of language documentation and description in Unangam Tunuu, and the main resources and foci of previous linguistic research. Students will be required to do the readings and to familiarize themselves with leading articles or reference books in the field, in particular with the Aleut Dictionary and Aleut Grammar by Knut Bergsland. Time permitting, we will do some group activities using these reference sources.
    • Unangam Unikangis: Aleut stories of leadership and knowing

      Mack, Liza; Barnhardt, Ray; Carothers, Courtney; Chapin, F. Stuart III (2019-03)
      The central question of this dissertation is, "What do Aleut people know about the laws that directly affect their access to local resources?" The complex details of hunting and fishing regulations coupled with legislation that dictates access to natural resources will play a key role in Aleut leaders' ability to understand, disseminate, and protect these rights. Such policies include clauses that regulate who can and cannot participate based on blood quantum, which can be problematic for future generations of Aleut people as they marry and have children with people from outside the region. Further, with the abolishment of aboriginal title to lands and hunting and fishing rights in Alaska, understanding who owns the land and resources and how they are governed is imperative to Aleut people. This dissertation uses participant observation, critical case studies, key informant interviews, and a survey of Aleut leaders in the Eastern Aleutians to illustrate the ways in which Aleut people know and understand their environment and the ways they address natural resource management issues. It further demonstrates the way these issues are being addressed and learned about in two Eastern Aleutian communities. It also highlights the dynamic leadership of Aleut community members in the Eastern Aleutians. Some of the major findings include no reported change in subsistence use for respondents under the age of 50, a decline in the amount of subsistence used by older respondents, Aleut leaders spend years serving their communities in multiple capacities; and generally speaking, younger generations of public servants tend to become involved in community service as well.
    • Uncertainties in Arctic Precipitation

      Majhi, Ipshita; Alexeev, Vladimir; Cherry, Jessica; Groisman, Pavel; Cohen, Judah (2012-12)
      It is crucial to measure precipitation accurately to predict future water budget with confidence. In our study, we aim to understand and compare precipitation datasets and discrepancies associated with them. We divide our datasets into three classes-raw data (data that have only been preprocessed to minimum quality control);corrected products (data that have been adjusted by their respective authors); finally, a reanalysis dataset (a combination of observed data and model output).
    • Uncertainty in fish counting using an echo-counting technique as applied to data from a single-beam sonar

      Lai, Zhiguo (2002-08)
      A model of fish distribution in time and space and a single-beam sonar model are presented. Simulated sonar data are obtained and analyzed using the echo-counting method to determine the estimated number of fish. The results show that (1) when the fish rate is less than 1 fish/s, the error is within plus minus 15% and fish are overcounted more often than undercounted, (2) this method underestimates the number of fish by 57% of the actual number of fish for a fish rate of 5 fish/s, (3) fish counts are dominated by the noise if the threshold is lower than the noise level, (4) by varying the ping rate, the error could be as much as 72% for a fish rate of 10 fish/s and a ping rate of 10 pings/s, (5) by varying the pulse width, the error could be as much as 80% for a fish rate of 10 fish/s and a pulse width of 1.0 ms.
    • Uncertainty in fish location using a split beam sonar

      Ayers, Mark L. (2001-05)
      The enumeration of fish is of critical importance to the management of both commercial and sport fisheries in Alaska and worldwide. Current methods for riverine fish enumeration are inaccurate and unreliable. Improved fish counting accuracy in Alaskan rivers by acoustic methods is required. A split beam sonar system in the presence of noise is modeled. The sonar system including the received sonar pulse, receiver system, transducer beam pattern, propagation losses, and noise are modeled. An analysis of the effects of noise, pulse duration and sampling frequency on the uncertainty in fish location is presented. Signal to noise ratios less than 5 dB can cause significant errors in the calculation of received signal phase. A stationary fish with a signal to noise ratio of 15 dB has approximately plus-minus 0.001 degrees of uncertainty in the angles of arrival. Reducing the SNR to 3 dB the uncertainty increases to plus-minus 3.6 degrees in the angles of arrival.
    • Uncertainty quantification of gas production in the Barnett shale using time series analysis

      Joshi, Kishan Ghanshyambhai; Awoleke, Obadare; Hanks, Catherine; Ahmadi, Mohabbat (2015-12)
      Deterministic methods for evaluating uncertainty in production forecasts for unconventional shale plays are either unreliable or time intensive. This thesis presents an improved methodology for quantifying uncertainty in production forecasts using Logistic Growth Analysis (LGA) and time series modeling. The applicability of the proposed method is tested by history matching production data and providing uncertainty bounds for forecasts from eight Barnett Shale counties. The 80% confidence interval (CI) generated by this method successfully bracketed true production values for all the counties, even when approximately one-third of the data was used for history matching. In the methodology presented, the trend in the production data was determined using two different non-linear regression schemes. The predicted trends were subtracted from the actual production data to generate two sets of stationary residual time series. Time series analysis techniques (Auto Regressive Moving Average models) were thereafter used to model and forecast residuals. These residual forecasts were incorporated with trend forecasts to generate our final 80% CI. To check the reliability of the proposed method, I tested it on 100 gas wells with at least 100 months of available production data. The CIs generated covered true production 84% and 92% of the time when 40 and 60 months of production data were used for history matching, respectively. An auto-regressive model of lag 1 best fit the residual time series in each case. The proposed methodology is an efficient way to generate production forecasts and to reliably estimate uncertainty for short to medium time periods. It includes uncertainty due to parameter estimation using two different regression schemes. It also incorporates the uncertainty due to the variance of the residuals. The method is computationally inexpensive and easy to implement. The utility of the procedure presented is not limited to gas wells; it can be applied to any type of well or group of related wells.
    • Uncovering and enhancing motivation in a residential substance abuse treatment setting

      Morris, Alexandria V.; Renes, Susan; Gifford, Valerie; McMorrow, Samantha (2015)
      This project addresses how to enhance motivation in a residential substance abuse setting in order to encourage completion of treatment. This project discusses contingency management, music therapy, family therapy, and motivational interviewing and how they enhance motivation. Contingency management and music therapy were both found to be helpful in increasing motivation in residential settings. Family therapy was also found to increase motivation, but at smaller levels. Motivational interviewing, which is used by many therapists, also enhances motivation in a consumer and is considered an evidenced based practice. The project provides a motivational curriculum for use in a six-week residential treatment program. The curriculum incorporates all four areas found in the literature that can be used to enhance motivation and to uncover motivation and help to engage consumers in treatment.
    • Under New Management: Developing a Library Assessment Program at a Small University

      Jensen, Karen (Library Assessment Conference, 2008)
      Prompted by new leadership in both the library and the university, the University of Alaska Fairbanks (UAF) Rasmuson and BioSciences Libraries recently established a strategic planning process that included the creation of a general assessment program for the libraries. The library administrative team felt that it was time to assess our program and come up with a new action plan. The purpose of these efforts is to ensure that spending and staffing priorities match current user needs, to respond to university-required performance measures, and to help with strategic planning. The assessment program includes gathering library user and use data, systematic collection analysis, and implementation of an ongoing campus-wide community survey. This paper describes how a task force of four UAF librarians recently adapted and implemented surveys of faculty, graduate, and undergraduate students, modeled on a process conceived by the University of Washington Assessment Program. The UAF libraries’ surveys yielded response rates of 25% (243/943), 19% (143/750), and 8% (431/5086) among the three groups, respectively. Included are an overview of the assessment program, the survey planning and implementation process, and a summary of results and action plan. Recommendations for conducting small-scale surveys are provided.
    • Undergraduate Research Initiation and Exploration

      Jones, Emily (2014-04-29)
      This URSA project’s overreaching goal was to become more exposed to research while working with a graduate student as a mentor. This was accomplished by completing tasks such as data collection related to Matthew Balazs’ research on slope deformation and hazard analysis in Seward and Whittier, Alaska. Along with those tasks, I learned to write my own research proposals and became more exposed to other students’ research by attending thesis defenses. Lastly, I studied ArcGIS and then later applied it within my own small research project. This project was very important for my student career and has inspired me to pursue more undergraduate research along with helping other undergraduates find research opportunities. None of this would have been possible if it was not for the URSA Graduate Student Mentorship Award that was granted to Mathew Balazs for the summer of 2013.
    • Understanding institutional and social factors relating to the provisioning of water and sanitation services in rural Alaska: perspectives on community self-reliance from nine Native villages of Interior Alaska

      Ochante Cáceres, Mercedes Fátima (2013-05)
      The global community acknowledges the essential nature of potable water and proper sanitation to the realization of human rights. Since 1959 federal, state and tribal efforts have focused on the goal of equitably providing these services to Alaska Native villages. However, demographic and geographical realities along with limited resources pose formidable challenges to achieving this lofty goal. This thesis explores the challenges to providing safe drinking water in remote Interior Alaska villages and their impact on self-reliance from the perspectives of knowledgeable village residents. Findings from a grounded theory analysis reveal that despite competence and concerted efforts to meet community needs, social and institutional dimensions pose difficulties to sustainable water services. Such challenges include community perceptions about treated water, communication barriers, unharnessed local expertise and opportunities to develop local capacity, complicated needs assessment and resource acquisition processes, mismatched policies and technology vis-a-vis the realities of village living, and resident out migration.
    • Understanding Loglan.

      Rice, Stephen Leon (1994)
      Loglan is a language designed to help test Whorf's hypothesis that language shapes thought. Specifically, Loglan should encourage more creative and logical thought in its users. Such future users will need a readable textbook of the language; that is the purpose of the present work. <p>
    • Understanding place in fisheries management: an examination of ecological and social communities in the Pribilof Islands, Alaska

      Lyons, Courtney; Carothers, Courtney; Eckert, Ginny; Reedy, Katherine; Siddon, Christopher (2015-08)
      Holistic approaches toward fisheries management are widely considered a more sustainable option than standard single-species frameworks. This project uses the holistic frameworks of ecosystem-based fisheries management (EBFM) and place-making to examine the ecological and social systems of the Pribilof Islands and the ways in which fisheries management decisions have structured these systems. In Chapter 1, we sought to understand potential ecological constraints of temperature, fish predation, and interactions with a congener (red king crab; Paralithodes camtschaticus) on blue king crab (Paralithodes platypus) recovery. These examinations suggest that blue king crab juveniles switch strategies from predator avoidance to a strategy of predator deterrence in situations where predation is more likely. In addition, this research suggests that predatory interactions between crab congeners may be more likely than fish predation to inhibit blue king crab recovery. In Chapter 2, we sought to understand local place-making efforts and how they differed between the two Pribilof Island villages, as well as, how these place-making efforts articulated with development programs. We found that place-making efforts in both communities were based on maintaining residence in the islands and an appreciation of the wayof-life that residence provided. The way place-making efforts articulated with development programs, however, differed between the communities. In St. George, Alaska, residents selectively embraced development, only supporting initiatives that would help realize the goal of maintaining residence in the community, as opposed to integrating into a regional economy. Residents of St. Paul, Alaska, in contrast, had more autonomy and were able to control development projects in their community to support local place-making efforts. In Chapter 3 we used these data to develop a framework for assessing the vulnerability of fishing communities based on holistic, ethnographic understandings of local social systems. This framework showed St. George to be a highly vulnerable community, while St. Paul was only moderately vulnerable. These assessments challenged previously published, quantitative vulnerability assessments. The results of our investigations into the social and ecological systems of the Pribilof Islands support the idea that holistic perspectives provide important information that can drastically alter management understandings of both fish resources and the people who depend upon them.
    • Understanding reservoir engineering aspects of shale gas development on the Alaska North Slope

      Nyulund, Anna; Dandekar, Abhijit; Patil, Shirish; Ahmadi, Mohabbat (2015-12)
      Horizontal drilling and multi-stage hydraulic fracturing made it possible to develop US shale resources. Shublik shale is one of such US shale resources - it is one of the largest source rocks for hydrocarbon accumulations located on the Alaska North Slope. This study used the workflow introduced by Mirzaei and Cipolla in 2012 to investigate the effects of fracturing fluid flowback; shale porosity; matrix, fracture and unpropped zone permeability; hydraulic fracture spacing; permeability anisotropy; non-Darcy flow; gas adsorption/desorption using the complex-fracture-network model, referred to as an Unconventional Fracture Model (UFM), and Voronoi grid on well performance in the Shublik shale formation. In addition, the effects of natural fracture network orientation, fracture spacing and length were examined using a single porosity model with incorporated Discrete Fracture Network (DFN). The Schlumberger Mangrove Plug-In for Petrel platform was used to conduct the study. Mangrove has the DFN feature, which can be deactivated in the single porosity model. The results suggested that ignoring fracturing fluid flowback and non-Darcy effects can lead to overestimation of the gas recovery factor. Neglecting gas adsorption/desorption effects leads to underestimation of the gas recovery factor. In addition, smaller fracture spacing leads to a higher gas recovery factor. DFN orientation, fracture spacing and length affect the propped fracture area and should be incorporated into analysis from shale plays since it can result in either overestimation or underestimation of the gas recovery factor depending on fracture network propagation. Finally, examining multiple hydraulic fractures instead of one fracture is more accurate due to the stress shadowing effects and fracture network propagation.