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Enhanced Hydrocarbon Recovery In Tight And Shale Reservoirs Using Surfactants And Supercritical Co2, Shaojie Zhang

Theses and Dissertations

The tight and shale oil reservoirs have been becoming increasingly important energy resources. However, the flow and storage mechanisms of oil in tight and shale reservoirs are still ambiguous. The inorganic pores, organic pores, and kerogen skeleton in shale oil reservoirs can store hydrocarbons. Besides, the oil recovery of tight and shale oil reservoirs is extremely low even with the assistance of hydraulic fracturing and horizontal drilling. The surfactants and CO2 are commonly used to enhance the oil recovery in tight and shale reservoirs. A comprehensive review of CO2 and surfactants EOR is shown in Chapter Ⅱ.

The spontaneous imbibition …

Self-Efficacy Of Nacep Accredited Concurrent-Enrollment Program Instructors In Rural Community Colleges, Cecil B. Holland

Theses and Dissertations

Across the United States, high schools and community colleges are collaborating to offer students non-traditional educational programs that allow them to gain college credit including those accredited by the National Alliance of Concurrent Enrollment Partnerships (NACEP). Those teaching these classes must have high self-efficacy and enjoy their work if they are going to make a positive impact on the students they are educating. The theoretical framework for this research is based on Bandura’s Self-Efficacy Theory. The methodology for this qualitative research study utilized an integrated approach. Data collection consisted of one-on-one interviews with instructors who teach NACEP courses, administrators who …

Monitoring Corrosion Of A One Inch Ball Valve In A Hydraulic Loop Using Ultrasonic Technology, Osei Prempeh

Theses and Dissertations

Ball valves with carbon steel bodies that help modulate flow rates are valuable parts in the process chemical industry. While corrosion monitoring is widely studied, there is not much information available regarding corrosion monitoring of control valves, as referenced in the literature review for this dissertation. This research investigated some foundational blocks for how corrosion can be monitored for a carbon steel body ball valve using ultrasonic technology. Topics that were addressed during this research include:

Monitoring corrosion in a carbon steel 1inch ball valve in a constant flow rate environment, in the presence of sodium chloride solution, mixtures of …

A New Approach To Measure Unique Spectral Response Characteristics For Irregularly Shaped Photovoltaic Arrays, Anthony Rafael Peters

Theses and Dissertations

Current photovoltaic (PV) panel test methods do not provide efficient and repeatable standardization, which can result in inconsistent results. Test requirements for individual PV cells are promulgated by standard test conditions (STC), but do not directly translate to new array or panel designs, particularly for panels that are irregularly shaped and used for different applications. Optimal angles that yield the most power delivery from the PV device when integrated into a panel are achieved by manipulating the panel’s orientation via single or dual axis tracking (e.g., maximum power point tracking). In applications where PV is intended to be integrated into …

A Preliminary Study Of Leo To Geo Transfers For Inclination Changes Using Libration Point Orbits, John Shepard

Theses and Dissertations

The required change in velocity for a satellite to change inclination has prompted studies of efficient orbital transfers. Modeling the motion of a spacecraft by including the gravitational forces associated with the Sun, Earth, and Moon has historically proven effective in obtaining new scientific knowledge. In modeling the motion of satellites, the circular restricted three body problem (CR3BP) demonstrates the interactions from two primary bodies and a satellite. The dynamics created about the equilibrium points within the CR3BP can be used to construct low-energy transfers. The invariant manifolds of the libration point orbits (LPO) can be used to create an …

Surfactant-Nanoparticle Augmented Systems For Enhanced Oil Recovery: Formula Development And Evaluation, Xun Zhong

Theses and Dissertations

Surfactant enhanced oil recovery (EOR) technology has received much attraction due to its excellent capability to increase the displacement efficiency by altering the wettability, lowering the oil-water interfacial tension and mobilizing the remaining oil. However, surfactant systems are widely acknowledged to have either low or high adsorption on solid (rock/clay/sediment) surfaces. The adsorption density can be affected by adsorbents, surfactant structure, experimental conditions and some other factors. Also, the driving forces for adsorption vary with different surfactants types. Generally speaking, electrostatic interactions are more prominent for anionic, cationic and zwitterionic surfactants, while chemical interactions are more common for nonionic surfactants. …

Redirected Mindset: A Guide To A More Holistic Practice In Physical Rehabilitation, Sara Anderson, Ashley Malina

Occupational Therapy Capstones

Problem: Current practice is that the occupational therapists’ identity has become rooted in the practice setting they are working in versus the core values and beliefs of the profession. Despite the core values and beliefs of the profession, occupational therapists have pigeon-holed themselves as physical or mental health practitioners (Terry & Westcott, 2012). This results in restricted assessments and interventions that are not holistic and often not occupation based (Terry & Westcott, 2012). “Occupational therapy practitioners need to have an understanding of the physical, emotional, and psychosocial aspects of recovery from physical disability to address potential obstacles to their patient’s …

Rare-Earth Elements, University Of North Dakota. Energy And Environmental Research Center

EERC Brochures and Fact Sheets

Introduces the importance of rare-earth elements and how they are used, the supply risk involved, research projects, and information about the lignite industry. [This item is an outdated or superseded version and retained for historical purposes only. It may no longer reflect current information, policies, or practices.]

Chemical Process Development, University Of North Dakota. Energy And Environmental Research Center

EERC Brochures and Fact Sheets

Fact sheet on the Energy & Environmental Research Center’s chemical process development capabilities.

The Utility Of Smart Home Technology Within Occupational Therapy Practice, Kylie Walthers, Jessie Zimmer

Occupational Therapy Capstones

Purpose: The purpose of this study is to explore occupational therapist practitioners’ (OTPs) utility of smart home technology (SHT) in their practice, as well as to inquire into the facilitators and barriers of utilization of smart home technology within the practice of occupational therapy.

Methodology: This study was approved by the Institutional Review Board at the University of North Dakota (UND) in Grand Forks, ND. A quantitative, descriptive research design utilizing survey methodology was used. Recruitment was conducted through purposive and convenience sampling. A 30-question Qualtrics survey was distributed to participants via social media and internet pages (OT4OT; AT4OT; CommunOT; …

Occupational Gearing For Child Rearing: Occupational Therapy’S Role In Helping New Mothers Succeed After Giving Birth, Alana Grabarkewitz, Lydia Swanson

Occupational Therapy Capstones

The purpose of this scholarly project is to provide occupational therapists with access to an educational website that helps fill the current gaps in care for mothers and advocates for the occupational therapy profession to contribute to a mother’s care team.

A substantial literature review was completed to gather information about difficulties mothers encounter and how occupational therapy can assist mothers with the difficulties. To find reliable and trustworthy information on what issues and conditions a mother may experience and how occupational therapy can help mothers, various search engines were used. The findings from the literature review were used to …

Occupational Therapy Based Resource Designed For Caregivers Of Children In The Foster Care System, Courtney Haugen, Brianna Mcnelly

Occupational Therapy Capstones

Abstract: In 2018, 687,345 foster care children were placed into the foster care system (U.S. Department of Health and Human Services, 2019). The foster care system is a complex, diverse system that continues to witness an increasing need for foster parents to support and provide for children placed in foster care. Foster parents present as an underserved population that requires education to navigate the child welfare system and develop and utilize skills to appropriately address the barriers and stressors encountered daily in their role as a foster parent. A literature review was conducted and found multiple resources for assisting foster …

Occupational Therapy: Addressing Mental Health Needs In Permanent Supportive Housing, Jessica Drady, Drew Mapes

Occupational Therapy Capstones

Title: Occupational Therapy: Addressing Mental Health Needs in Permanent Supportive Housing

Introduction: The availability and implementation of occupational therapy services in supportive housing are limited. According to Schultheis (2018), out of the 550,000 people in America who experienced homelessness on a given night in 2017, 1 in 5 had a mental illness. Choy-Brown, Padgett, Smith, and Tiderington (2016) found that 92% of individuals with mental illness stated that secure housing was the foundation of their recovery. When housing acts as a cornerstone to recovery, it is important, as occupational therapists, to capitalize on the opportunity and resources stable housing provides …

Critically Appraised Topic: Evidence For Mindfulness Therapies For Veterans With Ptsd, Hayley Blom, Julie Juracich, Sydnie Merriman

Critically Appraised Topics

The purpose of this critically appraised topic (CAT) is to explore the effectiveness of mindfulness therapies to assist veterans who have post-traumatic stress disorder (PTSD) with symptom management. Assisting veterans to purposely engage in rest, health management and social participation are areas of occupation that will increase overall quality of life, as these occupations are negatively impacted by PTSD symptoms (American Occupational Therapy Association (AOTA), 2010; Barr, Davis, Diguiseppi, Keeling & Castro, 2019; Beck et al., 2017; Bormann et al., 2018; Cole et al., 2015; Cuellar, 2008; Cushing, Braun, Alden, Katz & Alden, 2018; Marchand, Yabko, Herrmann, Curtis, & Lackner, …

One Hundred Voices: Harrisburg’S Historic African American Community, 1850-1920, Calobe Jackson Jr., Katie Wingert Mcardle, David Pettegrew, Lenwood Sloan

Digital Press Books

In 2020, a coalition of citizens, organizers, legislators, and educators came together to commemorate the Fifteenth and Nineteenth Amendments by establishing a new monument in Harrisburg, Pennsylvania. This would be a memorial dedicated to the capital city’s significant African American community and its historic struggle for the vote. The Commonwealth Monument, located on the Irvis Equality Circle on the South Lawn of Pennsylvania’s State Capitol Grounds, features a bronze pedestal inscribed with one hundred names of change agents who pursued the power of suffrage and citizenship between 1850 and 1920.

This book is a companion to this monument and tells …

Using Geothermal Energy To Reduce Oil Production Costs, Will Gosnold, Mark Ballesteros, Dongmei Wang, Josh Crowell

Geology and Geological Engineering Faculty Publications

The economic impact of the Covid-19 pandemic on the oil industry has been devastating. The decline in demand and price collapse have been particularly disruptive for shale oil extraction which is inherently more expensive than conventional operations. Survival and continuing operations will depend partly on reducing operating costs, and a ubiquitous and substantial cost in oil production is electrical power used primarily for pumping the wells. The Bakken in North Dakota play is particularly vulnerable because there is not an adequate electrical grid in the region. Many Bakken fields rely on generators burning propane, gasoline or diesel fuel at costs …

A Relook At Canada’S Western Canada Sedimentary Basin For Power Generation And Direct-Use Energy Production, Catherine Hickson, Katie Huang, Darrell Cotterill, Will Gosnold, Dick Benoit

Geology and Geological Engineering Faculty Publications

The Alberta No. 1 Project, under the terms of Canada’s Federal government’s Emerging Renewable Power Program (ERPP), must produce 5MWe net. The goal of this study was to identify areas where three essential constraining conditions overlap; (1) the temperature gradient is sufficiently high that 120°C brines at depths of 4,500m or less are potentially available, (2) there are formations at the depths targeted with known high fluid flows, and (3) there is adequate existing infrastructure that supports low-cost power grid connection as well as a direct use application. A fluid temperature of at least 120^oC is needed to …

Digging For Roots In All The Wrong Places: Rethinking The Use Of Secret Drafting Documents In Interpreting The North Dakota Constitution, Nicholas S. Samuelson

North Dakota Law Review

No abstract provided.

North Dakota Supreme Court Review, North Dakota Law Review Associate Editors

North Dakota Law Review

No abstract provided.

Comparative Scoping Study Report For The Extraction Of Microalgae Oils From Two Subspecies Of Chlorella Vulgaris, Jasmine Kreft, Eric Moe, Nicholas Garcia, Andrew Ross, Wayne Seames

Chemistry Faculty Publications

The production of microalgae as a fatty acid oil resource for use in biofuels production is a widespread research topic at the lab scale. Microalgae contain a higher lipid content on a dry-weight basis compared to oilseeds such as soybeans. Additionally, the growth and cultivation cycle of microalgae is 15 days, in comparison to soybeans, for which the cycle occurs once or twice annually. However, to date, it has been uneconomical to produce microalgae oils in a world-scale facility due to limitations in cultivating microalgae at commercial scales. Recent developments suggest that the use of heterotrophic microalgae may be economically …

Preserving Shoulder Integrity For Pediatric Wheelchair Users, Nora Carlson, Miranda Jensen, Katelyn Mclellan

Critically Appraised Topics

According to the Centers for Disease Control and Prevention (CDC) (2019), 1,645 babies are born with spina bifida each year. There are three different types of spina bifida, with myelomeningocele being the most common. As for prevalence, “Hispanic women have the highest rate of having a child affected by spina bifida, when compared with non-Hispanic white and non-Hispanic black women” (CDC, 2019, para. 2). Children diagnosed with spina bifida may face motor, sensory, and cognitive impairments that can affect their quality of life and participation in occupations. According to Murray et al. (2015), children between the ages of 8 and …

Und Today: January 2020, University Of North Dakota

UND Today Archive

No abstract provided.

Occupational Therapy Interventions For People With Type 2 Diabetes In Rural Communities, Katherine Christopherson, Meghan Janssen, Nicole Merchlewicz

Critically Appraised Topics

Type 2 diabetes mellitus, commonly called type 2 diabetes, is the seventh leading cause of death in the United States (American Diabetes Association, 2020). The prevalence of diabetes is 17% higher in rural areas as compared to urban areas (“Why Diabetes is a Concern,” 2020). Hospitalizations and deaths from type 2 diabetes complications are higher in rural areas than in urban areas (Ferdinand, Akinlotan, Callaghan, Towne, & Bolin, 2018).

Electron Beam Irradiation As A Potential Lipid Decontamination Technique For Life Detection Instruments, Denise Kathleen Buckner

Theses and Dissertations

In the search for extraterrestrial life, identification of molecular biosignatures is a key technique. Lipids are important molecular biosignatures: they are ubiquitous to terrestrial life, survive for billions of years in the geologic record, can form biotically and abiotically (bearing molecular features indicating biogenicity), and are detected throughout the Solar System. Lipid-based life detection instruments require stringent contamination control to prevent false positives, but traditional decontamination techniques are unlikely to sufficiently remove lipid contamination without compromising instrument materials. This thesis investigates Electron Beam Irradiation (EBI) as a potential decontamination technique; five representative lipid standards, including palmitic acid, oleic acid, heneicosane, …

On The Potential Of Lignin As A Sintering Aid And Binder For Designing Porous Foams, Grant Christian Ellis

Theses and Dissertations

Lignin, as an abundant source of bio-renewable material, has been a subject of investigation for many years. Due to its chemically heterogenous and recalcitrant nature, 98% of the material is discarded as waste [3]. Laboratory groups have been exploring lignin’s potential as a value-added ingredient to promote biocompatibility, biodegradation, and substitute toxic, petroleum-based materials [4,6]. In our laboratory, lignin has been utilized as precursor for carbon foam, yielding highly porous structures after pyrolysis [5], and has also been shown to be compatible with other bio-waste materials [8]. The next stage of research focusses on controlled additions of Cu or Distiller’s …

The Conversion Of Carbohydrates From Microalgae And Corn Stover Into Building Block Chemical Acids, Andrew J. Kohler

Theses and Dissertations

Depletion of petroleum-based resources requires the development of high-valued chemicals from renewable sources. Previous work at the University of North Dakota demonstrated that four building block chemical acids, namely lactic, levulinic, acetic, and formic acids, can be generated by transforming cellulose into glucose followed the catalytic decomposition into the target acids. The most important of these chemicals is lactic acid, which can be used as a building block to produce a variety of biodegradable plastics. Traditional fermentation methods for lactic acid synthesis have proven costly, making it difficult for its subsequent products to compete economically. Alternatively, the use of a …

The Value Of Existential Worlds: Creation And Validation Of A Measure To Explore The Four Existential Worlds, Matthew Robert Rozzi

Theses and Dissertations

The field of counseling psychology is increasingly focused on understanding clients in holistic and non-pathologizing ways. Existential theory provides the four-worlds model for exploring human existence in line with this modern psychological zeitgeist. In this model, humans are understood to exist simultaneously in four “worlds” or “dimensions”: physical (umwelt), social (mitwelt), psychological (eigenwelt), and spiritual/philosophical (uberwelt). This measure construction project is the first known study to examine the personal importance (value) of existing in each world. The Value of Existential Worlds (VEW) was created and psychometrically examined. From the initial 63-items, a shorter (20-item) version was created which demonstrated a …

Modeling Of Gas-Solid Flows In Industry With Computational Fluid Dynamics Tools: An Assessment Of Modeling Methodologies And Computational Challenges, Kaylee Smith

Theses and Dissertations

The modeling work and simulation results contained within this thesis come from two different applications that together emphasize multiple of the challenges currently faced by researchers in the field of numerical modeling of gas-solids flows with computational fluid dynamics (CFD) tools, and highlight avenues of potential resolutions to these challenges.

In the first body of work, the MFiX CFD suite, developed by the Department of Energy’s National Energy Technology Laboratory (DOE NETL), was utilized to model and simulate several experimental conditions of a fluidized bed (in 2D), and a hopper (in 3D), where solid-solid collision effects play a dominant role. …

Case Judgments And Juror Perceptions Of The Stereotypical Defendant, Mariah Sorby

Theses and Dissertations

Stereotypes and prejudice have been shown to bias information processing and decision making. There are physical traits that are stereotypically associated with criminals, i.e. tattoos, dark skin-tone, facial untrustworthiness, Afrocentric facial features. These features have been shown to influence verdict decisions and sentencing outcomes. However, there is a paucity of research investigating the additive effects of these features while also considering individual levels of prejudice and egalitarian views. The current research aimed to investigate the effects of several combinations of features on defendant verdict, sentencing, and criminal appearance ratings, rather than assessing the features in isolation, while controlling for prejudice …

Preparing Commercial Space For Safety Management System Implementation, Brian Eugene Teske

Theses and Dissertations

In 2014 The commercial space company, Scaled Composites, suffered a catastrophic event during a test flight, killing one astronaut. Several recommendations for the Federal Aviation Administration, Office of Commercial Space Transportation emerged from the National Transportation Safety Board. One recommendation was the introduction of a safety management system (SMS) as a safety protocol and became the genesis of this research project. This study has two purposes. The first purpose is to investigate whether the attributes of safety management system theory (SMST) exist in commercial space organizations. The second purpose is to explore the characteristics of high reliability theory (HRT) to …