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University Of New Hampshire 2024-2025 Faculty Senate Xxix - May 6, 2024 Minutes Summary, Faculty Senate

Faculty Senate Agendas & Minutes

No abstract provided.

Engineering And Business Merge To Create Sustainable Ocean Drifter, Aaron Sanborn

UNH Today Archive

No abstract provided.

Magnetic Properties Of Manganese-Bismuth (Mnbi) Using Dft Calculations, James Wirth

Master's Theses and Capstones

Permanent magnets are in electronic or other systems that are necessary in daily life. Rare earth metals are the common base elements for permanent magnets, but their availability on the global stage is unstable. MnBi is one material being considered to replace rare earth materials due to its high electron mobility and strong conductivity. A literature review on the topic revealed that MnBi has a large energy product, high Curie temperature, promising band structure, and other beneficial features. This review was based on experimental data and theoretical calculations that used a variety of approximations. It was determined that MnBi could …

Using Tensile And Compressive Stress Superposition During Incremental Forming To Manipulate Martensitic Transformation In Ss304, E M. Mamros, F Maab, A E. Tekkaya, Brad L. Kinsey, J Ha

Faculty Publications

Single point incremental forming (SPIF) is a flexible manufacturing process that has applications in industries ranging from biomedical to automotive. In addition to rapid prototyping, which requires easy adaptations in geometry or material for design changes, control of the final part properties is desired. One strategy that can be implemented is stress superposition, which is the application of additional stresses during an existing manufacturing process. Tensile and compressive stresses applied during SPIF showed significant effects on the resulting microstructure in stainless steel 304 truncated square pyramids. Specifically, the amount of martensitic transformation was increased through stress superposed incremental forming. Finite …

Unhsc Performance Curve And O&M Tracking Calculator, Daniel Macadam

UNH Stormwater Center

No abstract provided.

A Pathway To Light-Induced Assembly Of Polymer Nanoparticles, Anna Huebner

Doctoral Dissertations

Since the late 1980’s tissue engineering has become an important field in regenerative medicine. Tissue engineering aims to create scaffolds designed to mimic the extracellular matrix (ECM) of human tissue, which is a complex, heterogeneous system. While there are a variety of approaches for scaffold fabrication, it is difficult to mimic the heterogeneity of the natural ECM. NH BioMade proposed a tissue engineering scaffold design to address these limitations, where multi-lobed particles can be 3D-printed to form a scaffold, providing heterogeneity in pore size by the incorporation of different-sized multi-lobed particles. In order for particles to be 3D printed into …

Aspects Of Mirror Symmetry For Non-Fano Toric Varieties, Michael John Samuel Lathwood

Doctoral Dissertations

Correlation functions in the topological A-model can be computed with open Gromov-Witten invariants whereas the mirror topological B-model admits a simpler description in terms of period integrals. We first review preliminary material in Chapter 1. Then in Chapter 2 we use tropical geometry to construct the Duistermaat-Heckman measure for non-Fano toric varieties. This allows one to compute the asymptotic terms of period integrals. In Chapter 3 we solve the generalized Picard-Fuchs system for the Hirzebruch surfaces, and hence compute periods to all orders of the mirror complex structure moduli. Near the large complex structure limit point, we use toric degenerations, …

Mathematical Explorations Into The Inner Workings Of Neural Networks, Xiang Li

Doctoral Dissertations

Neural network applications are everywhere in our lives today. We can now design and train large neural networks with billions of parameters for a multitude of complex tasks. However, it is still extremely challenging for us to explain the theoretical underpinnings that have led to the successful use of neural networks for a wide range of applications. This dissertation focuses on the mathematical foundations of neural networks.

In Chapter 2, we investigate the error function of fully connected neural networks with the rectifier linear unit (ReLU) activation functions. We prove that for any linear neural network with a single hidden …

Essays On Labor, Immigrants, And Inputs, Andrew Clina

Doctoral Dissertations

In my dissertation, I concentrate on the broad topic of trade and its effects on domestic markets, employing both empirical analysis and theoretical frameworks. This study delves into two primary facets of trade's influence: labor and production. While the impact of trade with China on labor markets on manufacturing employment is well studied, I contribute to existing literature by investigating its effects on STEM (Science, Technology, Engineering, and Math) occupations. Despite considerable attention to STEM education, there is little research on these specific occupations. I extend this analysis in my second chapter by examining how immigrants are affected differently from …

Differential Roles Of Replication Protein A Large Subunit Paralogs In Dna Damage Repair, Ian Mills

Doctoral Dissertations

DNA damage is a constant threat for all organisms. The most severe form of DNA damage is a double-strand break (DSB) that can have disastrous consequences to the cell including genome truncation and programmed cell death. As such, organisms have multiple complex pathways dedicated to repairing DSBs. These repair pathways begin with a signaling cascade that results in the resecting of the ends of the break to create 3’ OH overhangs which are immediately bound by a single-stranded binding protein called Replication Protein A (RPA). This is followed by the cell either undergoing programmed cell death or utilizing non-homologous end …

Streamer Dynamics In Thunderstorm And Near-Ionospheric Environments, Jacob Koile

Doctoral Dissertations

Streamers are self-consistent ionization waves that are generated within an electric field. Since they were first proposed in the theory of spark breakdown developed in the 1930s by Raether, Loeb, and Meek [Raether, 1939; Loeb and Meek, 1940], they have demanded the attention of scientists across many different fields. They are crucial to the Earth environment because of their natural occurrence in the form of sprites, at near-ionosphere altitudes above a thunderstorm, and their proposed roles in the formation and propagation of lightning. % that can occur above a thunderstorm, or However, they also play a role in the human …

Asymptotic Spectral Analysis Of A Coupled Bending-Torsion Beam Energy Harvester, Chris Vales

Doctoral Dissertations

A piezoelectric energy harvester is a device that utilizes the properties of piezoelectric materials to convert mechanical strain energy into electric energy. The present work is concerned with the asymptotic spectral analysis of a piezoelectric harvester extracting energy from the mechanical vibration of a coupled bending-torsion beam. After placing the model in the appropriate operator setting, we prove that the addition of piezoelectric energy harvesting constitutes a weak perturbation of the underlying beam dynamics, in the sense that the model’s piezoelectric parameters do not appear in the first two orders of magnitude of the asymptotic approximation of the governing operator’s …

Plasma Membrane Remodeling And Biochemical Mechanisms Underpinning Bacterial Persistence In Fractured Subsurface Shale, Chika Jude Ugwuodo

Doctoral Dissertations

During hydraulic fracturing, a water-based fluid containing proppants and several chemical additives is injected under high pressure into a ~2 km deep wellbore, to extend fractures in the underlying rock. This process introduces a host of microorganisms into the reservoir, some of which survive, persist for long periods of time and cause several problems including production of H2S, a corrosive toxicant and biofilm formation which clogs rock fractures. Over time, the bacterial genus Halanaerobium dominates the microbial community composition in many geologically distinct fractured formations. Our understanding of shale reservoir microbial dynamics remains limited despite extensive studies in the past …

Bin Packing Problem - An Efficiency Analysis Between Commercial Container Loading And Open-Source Optimization Algorithms, Gabriel Mihu

Master's Theses and Capstones

Bin packing problem literally refers to bin packing: optimize fitting of a number of smaller containers into bins of equal volume, in order to occupy the smallest number of bins. It has various real-world applications, from stock cutting, container shipping to 3D transistor microprocessor design and computer files packing. Finding an optimal solution can easily become a very challenging task as the number of elements increases.Single algorithm application can be very effective in certain cases, but usually multiple algorithms are used in conjunction could be more effective for increased efficiency and for what is considered a highly optimized result. Developing …

Exploring The Role Of Recreation In Rural Nh Youth's Engagement With Master Narratives, Katelyn A. Moscouver

Master's Theses and Capstones

Rural youth often feel compelled to leave their home communities to seek new opportunities, especially at the secondary-postsecondary educational transition. These decisions are driven in part by perceived developmental imperatives to leave rural hometowns given messages that success is best achieved elsewhere. The present study used the framework of identity master narratives to explore recreation's role in facilitating youth postsecondary planning in rural northeastern state of New Hampshire. The study extends and deepens prior research seeking to understand some of the structural-psychological factors connecting recreation involvement in adolescence, postsecondary decision making, and broader demographic patterns among the 15-19 and 20-24 …

Suspended Ion Exchange For Extensive, Low-Energy And N2o-Emission-Free Removal Of Nitrogen In Municipal Purification, Bailey Jones

Master's Theses and Capstones

In recent years, high concentrations of anthropogenic ammonia have been measured in surface and groundwaters in Europe which can devastate ecosystems due to eutrophication. Sources of this excess ammonia are fertilizers used in the agricultural industry and municipal wastewater discharge. Stricter regulations limiting the amount of ammonia a wastewater treatment plant (WWTP) can discharge may be enacted soon to prevent ammonia’s negative effects. A major issue facing WWTPs in the Netherlands is that conventional biological treatment processes used by these facilities are not able to meet the proposed ammonia discharge regulations. These facilities must soon turn to chemical solutions and …

Relating Acoustic And Optical Measurements Through Models Of A Synthetic Bubbly Seagrass Bed In A Stationary And Wave-Induced Laboratory Environment, Langdon Tarbell

Master's Theses and Capstones

Seagrass meadows are an essential part of littoral ecosystems, which provide many ecosystems service. They sequester carbon, filter seawater, protect coastlines from erosion, and serve as important nursery habitats. When seagrasses photosynthesize, they remove carbon dioxide from the environment and supersaturate the surrounding water with oxygen, at which time, bubbles form on the seagrass leaves and eventually rise to the atmosphere. Acoustic waves are highly sensitive to the presence of these bubbles, impacting naval sonar applications, such as mine hunting and underwater navigation, and therefore are also of importance to the Navy. Recently, seagrass have experienced a consistent decline in …

Using Tensile And Compressive Stress Superposition During Incremental Forming To Manipulate Martensitic Transformation In Ss304, E M. Mamros, F Maab, A E. Tekkaya, Brad L. Kinsey, J Ha

Faculty Publications

Single point incremental forming (SPIF) is a flexible manufacturing process that has applications in industries ranging from biomedical to automotive. In addition to rapid prototyping, which requires easy adaptations in geometry or material for design changes, control of the final part properties is desired. One strategy that can be implemented is stress superposition, which is the application of additional stresses during an existing manufacturing process. Tensile and compressive stresses applied during SPIF showed significant effects on the resulting microstructure in stainless steel 304 truncated square pyramids. Specifically, the amount of martensitic transformation was increased through stress superposed incremental forming. Finite …

Filling The Bathymetric Gaps: Toward Quantifying And Characterizing Uncertainty In Interpolated Bathymetry, Elias Opeyemi Adediran

Master's Theses and Capstones

The oceans remain one of Earth's most enigmatic frontiers, with approximately 75% of the world's oceans still unmapped to modern standards. To overcome this, interpolation serves as the primary method for creating seamless coverage from incomplete coverage hydrographic data sets and is essential for creating a seamless digital bathymetric model (DBM) compiled from sparse bathymetric datasets and set-line spacing surveys. While methods for quantifying the uncertainty in depth measurements are well-researched, interpolation introduces unqualified depth uncertainties. This study aims to estimate and characterize these uncertainties which are essential to nautical charting, and navigational safety, and important in many other fields.Organized …

The Design And Characterization Of An Enhanced Reference Termination Board For Mipi, Matthew Corso

Master's Theses and Capstones

The Mobile Industry Processor Interface (MIPI) is a collection of protocols primarily used for connecting cameras and displays to processors in mobile devices. These links are asymmetrical in nature. Large amounts of data are sent in one direction and smaller amounts in the other. The speeds at which these protocols operate are continually increasing with each new revision of the specifications. The design of Automated Test Equipment (ATE) used to qualify new transceivers is rapidly falling behind in capability compared to that of the transceivers being currently developed. This thesis explores the design process for a passive M-PHY termination board …

Nonprofit Cybersecurity: Nist Csf 2.0 As Exemplar Of The Zero-Trust Model, Ariel Maxwell Grad

Master's Theses and Capstones

This thesis investigates the integration of Zero Trust Architecture (ZTA) and the National Institute of Standards and Technology Cybersecurity Framework (NIST CSF) within nonprofit and small organizations to enhance cybersecurity posture. Amidst increasing cyber threats, especially highlighted during the COVID-19 pandemic where nonprofit tech adoption allowed organizations to keep serving their communities during country-wide lockdowns [10], and cybercrime surged by 600% [2], the necessity for robust cybersecurity in nonprofits has never been more critical. This study aims to evaluate current cybersecurity practices, specifically Multi-Factor Authentication (MFA) adoption across varying nonprofit sizes, and assess the applicability of ZTA and NIST CSF. …

Feminism In The Anti-Nuclear Movement: Three Women's Quest To Re-Make Society, Sarah Doenmez

Master's Theses and Capstones

In the 40 years between 1974 and 2014, the anti-nuclear movement arose in New England, shook the dominant political forces, changed the culture, and achieved significant victories. Although they are usually not recognized as the power behind anti-nuclear and environmental activism, in fact, I contend that a certain group of women motivated by a second wave ecofeminist vision of peace were and have remained the core of this work in New England. Their fight against patriarchal systems shaping their individual lives extended to a larger commitment to build communities and imbue institutions with a new value system that would nurture …

Fate Of Per- And Polyfluoroalkyl Substances In A Wastewater Treatment Facility Using A Novel Membrane Bioreactor, Lindsay Ann Guertin

Master's Theses and Capstones

Per- and polyfluoroalkyl substances (PFAS) are a broad class of chemicals known for their environmental persistence and unique thermal and chemical stability which has led them to be used in a variety of products including paper, carpets, clothes, cosmetics, food packaging, kitchen ware, chrome plating, and aqueous film forming foams (AFFFs). Their resistance to biochemical degradation has led regulators to be interested in reducing PFAS loads to the environment and sources that humans are exposed to (e.g. drinking water). Recent studies have shown that concentrations of some terminal PFAS increase after secondary (biological) wastewater treatment indicating that precursor compounds are …

Microplastic Trends In Estuarine Surface Waters, Hanna Mogensen

Master's Theses and Capstones

With an estimated 8.75 million metric tons of plastic entering the world’s oceans each year, marine plastic litter has become a fast-growing concern. Plastics have been found to have severe impacts on aquatic environments and marine organisms in which both physical and chemical effects have been described. Once plastics enter the oceans, the qualities that make them so desirable- their persistent and durable nature- also make them a substantial and persistent threat. Through natural processes (solar degradation, mixing, and biofouling) larger plastic pieces break apart, but never fully degrade, existing as smaller and smaller pieces called microplastics.

Microplastics, defined as …

Effect Of Wind Direction Variability On The Dynamic Response Of Floating Offshore Wind Turbines In The Gulf Of Maine, Bhargavi Nimoji

Master's Theses and Capstones

In today's world, meeting the growing energy demand is crucial to sustaining the modern way of life. This has primarily been achieved through non-renewable sources, which are depleting and causing environmental harm. To tackle these challenges, a shift towards renewable energy sources is essential. The offshore wind sector, in particular, is rapidly expanding, exploring suitable sites for offshore wind farms and Floating Offshore Wind Turbines (FOWT). This study looks at the viability of the Gulf of Maine for FOWTs based on extreme environmental conditions associated with a 50-year storm return and wind directionality. The International Energy Agency (IEA) 15-MW Reference …

The Microbial Diversity In The Spruce Hole Aquifer Associated With Artificial Recharge Practices, Rafaela Paes De Souza Barbosa

Master's Theses and Capstones

Aquifer Storage and Recovery (ASR) Systems are utilized globally for underground water storage and subsequent retrieval, serving as a key water management strategy. In Durham, NH, an ASR system was established in the Spruce Hole formation to address various water supply needs, including meeting future demand, reducing treatment costs, and providing backup supply options. This system replenishes the aquifer using water from the Lamprey River. Given the importance of microbial communities in groundwater quality, understanding their composition is crucial. This study explores the microbial diversity in the Spruce Hole aquifer, comparing it to the surface water used for recharge and …

Influence Of Bottom Substrates On Sunken No. 6 Heavy Fuel Oil And Very Low Sulfur Fuel Oil Transport, Tori Sweet

Master's Theses and Capstones

Oil spilled into marine or freshwater environments can become submerged in the water column or sink to the bottom if its density is greater than that of water. Meso-scale experiments were conducted in the Coastal Response Research Center’s (CRRC) MacFarlane Flume at the University of New Hampshire (UNH) to better understand sunken oil transport in a river environment. Flume water temperatures reflected the annual range of the Mississippi River’s temperatures near Baton Rouge, LA (41 °F to 86 °F), a location where a spill is likely to occur because of shipping traffic. Flat and scaled sand dune substrates were secured …

Faculty Spotlight: Anna O’Brien, Sarah Schaier

UNH Today Archive

No abstract provided.

Unh Nursing Students Bridge Healthcare And Entrepreneurship, Aaron Sanborn

UNH Today Archive

No abstract provided.

Research Finds Pronoun Use Not Only Shaped By Language But Also Beliefs, Robbin Ray

Media Relations

No abstract provided.