Digital Commons Network^™

On Application Of A Surrogate Model To Numerical Evaluation Of Effective Elastic Properties Of Composites With 3d Rotationally Symmetric Particles, Pascal Alexander Happ, Igor Tsukrov, Romana Piat

Faculty Publications

Micromechanical modelling of particulate composites with non-ellipsoidal particle shapes presents significant challenges because analytical approaches based on the fundamental results of Eshelby cannot be used. On the other side, direct numerical evaluations by finite element analysis can involve high computational cost in the case when particle features have small radius of curvature, sharp edges and require extremely fine meshes. This paper proposes substituting the exact particle shape with a surrogate model producing approximately the same contribution to the effective elastic moduli. We illustrate our approach by considering rotationally symmetric 3D particle shapes with the external surface defined by the Laplace's …

Footprint Tools Tiptoeing Towards Nitrogen Sustainability, James N. Galloway, Elizabeth A. Castner, Elizabeth S M Dukes, Jessica Fox, Allison M. Leach

Faculty Publications

As we face multiple environmental crises (e.g. climate change, nutrient pollution, freshwater scarcity), there is often a disconnect between an entity’s activities and the pollution resulting from that activity. Footprint tools help address this disconnect. They are effective in educating people, institutions and communities on how their resource use results in environmental pollution and what we can do to moderate that pollution. These tools connect an entity’s activities with the associated pollution. Footprint tools are also constantly evolving. As we better understand how to best estimate emissions—especially from sources further removed like those from the supply chain—the guidance and methods …

Footprint Tools Tiptoeing Towards Nitrogen Sustainability, James N. Galloway, Elizabeth A. Castner, Elizabeth S M Dukes, Jessica Fox, Allison M. Leach

Faculty Publications

As we face multiple environmental crises (e.g. climate change, nutrient pollution, freshwater scarcity), there is often a disconnect between an entity’s activities and the pollution resulting from that activity. Footprint tools help address this disconnect. They are effective in educating people, institutions and communities on how their resource use results in environmental pollution and what we can do to moderate that pollution. These tools connect an entity’s activities with the associated pollution. Footprint tools are also constantly evolving. As we better understand how to best estimate emissions—especially from sources further removed like those from the supply chain—the guidance and methods …

Pair Of Alums Fighting To Keep Kids Safe Online, Keith Testa

UNH Today Archive

No abstract provided.

Lessons From Rain And Snow, Nicholas Gosling

UNH Today Archive

No abstract provided.

Outdoor Recreation Shows Promise As An Equitable Context For Youth Informal Stem Learning In Amenity-Rich Rural Areas, Jayson Seaman, Andrew D. Coppens, Cindy Hartman, Amanda Bastoni, Kate Moscouver, Courtney Lachaine, Janet Gronneberg

Faculty Publications

Many state and federal agencies are promoting outdoor recreation as an economic development strategy in natural resource-dependent rural regions of the United States that have experienced sustained divestment and outmigration after the collapse of traditional extractive industries. An underappreciated dimension of these efforts is how to prepare a future workforce from within rural communities that can help develop this diverse and growing sector. This article reports on an intervention delivered to middle and high-school aged youth in a rural area in the northeastern U.S. that examined whether outdoor recreation activities can serve as an accessible context for informal STEM learning. …

Emma Frank Recognized As Paul College's Outstanding Researcher, Aaron Sanborn

UNH Today Archive

No abstract provided.

Estrogen In Clover?, Nicholas Gosling

UNH Today Archive

No abstract provided.

Sideline Interference: The Vulnerability Of College Athlete-Whistleblowers In The Impending "Student-Employment-Athlete" Era & Co-Worker Retaliation, Hunter Seidler

UNH Sports Law Review

No abstract provided.

Student Note: Hoops, Hurdles, And Legal Layups: How Public Universities Like Indiana May Be Able To Follow Dartmouth's Lead Towards Unionization, Riley Albert

UNH Sports Law Review

No abstract provided.

Michigan Football's Not-So-Secret Agent: How Agency Law Imposes The Ncaa's "Death Penalty" Following The Sign-Stealing Scandal, Ryan A. Buchanan

UNH Sports Law Review

No abstract provided.

Editor's Foreword, Nathaniel J. D. Grabman

UNH Sports Law Review

No abstract provided.

Revisiting Workers' Compensation Protection In The National Football League Collective Bargaining Agreement, Brooke Chronister, Joshua Winneker

UNH Sports Law Review

No abstract provided.

Slr Masthead, Editorial Board

UNH Sports Law Review

No abstract provided.

Carbon Cycling Driven By Disturbance In A Tropical Freshwater Ecosystem, Alicia Dixon

Master's Theses and Capstones

Streams are hotspots for biogeochemical cycling in freshwater ecosystems and act as transformers for elements moving throughout their watersheds. Small watersheds in particular are the ideal natural laboratory for exploring how freshwater systems react to inputs and outputs of carbon, nitrogen, and other trace elements. Carbon cycling occurs throughout watersheds at different scales and through different pathways. Organic matter enters a stream from surrounding terrestrial environments, and is subsequently consumed by microbes, macroinvertebrates, and other freshwater organisms. The fate of organic matter in a stream is diverse, but some common pathways include emission as carbon dioxide through metabolic processes, movement …

Land Conservation Planning For Flood Resilience In New Hampshire's Coastal Watershed, Michal Zahorik

Doctoral Dissertations

Land conservation plays an important role in managing flood risk. It enhances community resilience and supports multiple ecosystem functions. This qualitative study investigates how local and regional land conservation strategies advance flood resilience in New Hampshire’s coastal watershed. Focusing on the institutional context, this thesis analyzes the effectiveness of local land conservation planning efforts, explores cross-scale interactions between local and regional planning, and identifies barriers and opportunities for flood-focused conservation projects. The data for this research were collected through semi-structured interviews with representatives of municipalities, public and private conservation organizations, regional planning commissions, partnership organizations, and landowners. The secondary data …

Flexibility And Accountability: Lessons On Accessibility From Pandemic Learning, Ashley Barry

Doctoral Dissertations

While the COVID-19 pandemic, starting in 2020, disrupted the writing education of many students, students with disabilities were particularly impacted. During this same period, college writing instructors worked to adapt and make their pedagogies more accessible in new educational contexts. This IRB-approved qualitative study utilizes principles of Universal Design for Learning to cultivate a methodology that is flexible enough to meet a wide variety of participant needs. The datasets consist of a pilot survey and focus groups of college instructors along with classroom artifacts and a series of interviews with short journal entries from four undergraduate students with disabilities. In …

Sustainable Energy Transition In Grid Connected And Off-Grid Communities, Roozbeh Ghasemi

Doctoral Dissertations

Decentralized energy systems, such as solar PV and wind, are often seen as key to improving the sustainability and resilience of energy systems in both urban and remote communities. This research aims to enhance the sustainability of adopting these systems in both grid-connected and off-grid contexts. In urban communities, a choice experiment model was developed for Boston, MA, and Atlanta, GA, and the results were analyzed using latent class analysis to understand household preferences for two decentralized renewable energy systems. For islanded communities, a process-based dynamic model was developed to simulate the operation of the decentralized energy system on Appledore …

Say Bananas: A Pilot Study On An App-Based Intervention As A Modality Of Home Practice, Kate Margaret Sjostedt

Master's Theses and Capstones

This single subject design study provides an initial exploration of using Say Bananas toprovide motor learning-based intervention for children with childhood apraxia of speech. By implementing an app-based home practice intervention tool to support traditional speech sound disorder treatment, specifically the Treatment for Establishing Motor Program Organization (TEMPO), it was designed to treat speech sound disorders by implementing exercises using a more engaging platform. We tested the performance of three different children diagnosed with childhood apraxia of speech. Each child used the app as a modality of home practice five days a week for four weeks in addition to their …

Understanding Ecological Baselines To Inform Humpback Whale (Megaptera Novaeangliae) Management Strategies In Southeast Alaska, Melanie Anabel Smith

Master's Theses and Capstones

Vessel disturbance impedes the resilience and recovery of humpback whale (Megaptera novaeangliae) populations. Many management strategies in Southeast Alaska aim to protect whales and their habitat. However, it is difficult to measure the effectiveness of management strategies without understanding the state of an ecosystem with minimal vessel traffic. The thesis examines two situations with reduced vessel activity to understand humpback whale behavioral and acoustic ecology. We first use the Beardslee Island Complex and adjacent waters in Glacier Bay National Park and Preserve (Glacier Bay), an area with minimal vessel traffic, to understand habitat use by foraging and traveling whales. Using …

Mindfulness And Meditation: Activation Likelihood Estimates (Ale) And Meta-Analytic Connectivity Modelling (Macm), Ariana Christine White

Master's Theses and Capstones

Introduction: Mindfulness, a popular practice that originated as a Buddhist custom, encompasses a myriad of techniques such as meditation, yoga, and journaling. Such practice is often suggested for individuals with mental health disorders (MHD). Recently, mindfulness-based interventions, including forms of psychotherapy like Acceptance and Commitment Therapy, have gained prominence. Investigations into brain activity associated with mindfulness-based interventions have identified positive modulation of a Triple Network Model (TNM), a confluence of three brain networks that are commonly associated with MHD. Targeting these networks and understanding mindfulness-specific connectivity may provide evidence for regions to target during intervention in order to induce neural …

Evaluating The Effects Of Wildfires On Microbial Communities And Gene Expression Involved In Nitrogen Cycling In Arctic Tundra Soils, Alma Idali Hernandez

Master's Theses and Capstones

Wildfires in the Arctic tundra are increasing in frequency in response to global warming.Under this changing fire regime, important components of permafrost ecosystems, such as soils and their microbial communities, are disturbed by the burning of vegetation, organic soils, and their nutrients. Previous studies of wildfires have documented significant changes in nutrient availability following wildfires, including an increase in inorganic nitrogen (N), which is a key nutrient component of soil organisms. Microbes are the main drivers of transformation of soil N, which is ultimately taken up by both microbes and plants as a nutrient source. However, due to the historical …

Soil Biogeochemical Properties Remain Altered Following Cessation Of Long-Term Simulated Nitrogen Deposition In A Temperate Forest, Jennie Ellen Wuest

Master's Theses and Capstones

Nitrogen (N) is an essential nutrient in terrestrial ecosystems and the transformations it undergoes mediated by microbes in soil are central to N cycling. While rates of atmospheric N deposition due to anthropogenic activity increased dramatically with the industrial revolution, government regulations in the late 20th century resulted in a reversal. Rates of atmospheric N deposition remain well above pre-industrial levels, but the last two decades have seen a steady decrease in areas such as the Northeastern United States. To investigate the potential for soil recovery from long-term N addition, we measured a suite of soil biogeochemical properties in a …

Hardware And Software Optimization For Of Smart Insole Systems For Gait Analysis, Femi John Olugbon

Master's Theses and Capstones

Gait analysis is vital in human biomechanicals, clinical diagnostics, and rehabilitation, providing essential insights into human locomotion. Ground reaction forces play a significant role in understanding gait dynamics, detecting abnormalities, and assessing treatment outcomes. Accurate measurement and analysis of ground reaction forces and other gait parameters are crucial for developing effective interventions and improving patient outcomes.

The first part of this thesis explores methods to optimize and standardize the number of pressure sensors and their optimum placements within the insole for accurate and reliable estimation of temporal gait parameters. Standardization of sensor position for temporal gait analysis is crucial for …

Observations Of Low And Intermediate Spectral Peak Blazars With The Imaging X-Ray Polarimetry Explorer, Herman L. Marshall, Ioannis Liodakis, Alan P. Marscher, Niccolò Di Lalla, Svetlana G. Jorstad, Dawoon E. Kim, Riccardo Middei, Michela Negro, Nicola Omodei, Abel L. Peirson, Matteo Perri, Simonetta Puccetti, Marco Laurenti, Iván Agudo, Giacomo Bonnoli, Andrei V. Berdyugin, Elisabetta Cavazzuti, Nicole Rodriguez Cavero, Immacolata Donnarumma, Laura Di Gesu, Jenni Jormanainen, Henric Krawczynski, Elina Lindfors, Greg Madjeski, Frédéric Marin, Francesco Massaro, Luigi Pacciani, Juri Poutanen, Fabrizio Tavecchio, Pouya M. Kouch, Francisco José Aceituno, Maria I. Bernardos, Víctor Casanova, Maya García-Comas, Beatriz Agís-González, César Husillos, Alessandro Marchini, Alfredo Sota, Dmitry Blinov, Ioakeim G. Bourbah, Sebastian Kielhmann, Evangelos Kontopodis, Nikos Mandarakas, Stylianos Romanopoulos, Raphael Skalidis, Anna Vervelaki, George A. Borman, Evgenia N. Kopatskaya, Elena G. Larionova, Daria A. Morozova, Sergey S. Savchenko, Andrey A. Vasilyev, Alexey V. Zhovtan, Carolina Casadio, Juan Escudero, Joana Kramer, Ioannis Myserlis, Efthalia Trainou, Ryo Imazawa, Mahito Sasada, Yasushi Fukazawa, Koji S. Kawabata, Makoto Uemura, Tsunefumi Mizuno, Tatsuya Nakaoka, Hiroshi Akitaya, Joseph R. Masiero, Dimitri Mawet, Georgia V. Panopoulou, Samaporn Tinyanont, Masato Kagitani, Vadim Kravtsov, Takeshi Sakanoi, Matthew Dattolo, Mark Gurwell, Garrett Keating, Ramprasad Rao, Whee Yeon Cheong, Hyeon-Woo Jeong, Sincheol Kang, Sang-Hyun Kim, Sang-Sung Lee, Emmanouil Angelakis, Alexander Kraus, Antonio Hales, Seiji Kameno, Ruediger Kneissl, Hugo Messias, Hiroshi Nagai, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Chen-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Alessandro Di Marco, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Philip Kaaret, Vladimir Karas, Fabian Kislat

Faculty Publications

We present X-ray polarimetry observations from the Imaging X-ray Polarimetry Explorer (IXPE) of three low spectral peak and one intermediate spectral peak blazars, namely 3C 273, 3C 279, 3C 454.3, and S5 0716+714. For none of these objects was IXPE able to detect X-ray polarization at the 3σ level. However, we placed upper limits on the polarization degree at ∼10%–30%. The undetected polarizations favor models where the X-ray band is dominated by unpolarized photons upscattered by relativistic electrons in the jets of blazars, although hadronic models are not completely eliminated. We discuss the X-ray polarization upper limits in the context …

Utilisation Of The Site Assessment Energy Indices For Aquaculture In Exposed Waters: Biology, Technology, Operations And Maintenance, Kevin G. Heasman, Tyler Sclodnick, Nils Goseberg, Nicholas Scott, Michael Chambers, Tobias Dewhurst, Samuel Rickerich, Heidi Moe Føre, Bela H. Buck

Faculty Publications

When moving from a very sheltered aquaculture site to a very exposed oceanic aquaculture site, the energy increases proportionally in a continuum. Lojek et al. (in review) considered the primary influential parameters (water current, wave height, wave period, wavelength and water depth) which influence the species, structure, technology, methods, and operational aspects of any aquaculture endeavour and investigated six possible indices which cover these variables. Added to advanced computer modelling, assisted by detailed and constant environmental monitoring, it may be possible to refine site selection, structure selection and design, species selection, equipment and logistic requirements and health and safety requirements. …

Extended Cyclotron Resonant Heating Of The Turbulent Solar Wind, Trevor A. Bowen, Ivan Y. Vasko, Stuart D. Bale, Benjamin D G Chandran, Alexandros Chasapis, Thierry Dudok De Wit, Alfred Mallet, Michael Mcmanus, Romain Meyrand, Marc Pulupa, Jonathan Squire

Faculty Publications

Circularly polarized, nearly parallel propagating waves are prevalent in the solar wind at ion-kinetic scales. At these scales, the spectrum of turbulent fluctuations in the solar wind steepens, often called the transition range, before flattening at sub-ion scales. Circularly polarized waves have been proposed as a mechanism to couple electromagnetic fluctuations to ion gyromotion, enabling ion-scale dissipation that results in observed ion-scale steepening. Here we study Parker Solar Probe observations of an extended stream of fast solar wind ranging from ∼15 to 55 R ⊙. We demonstrate that, throughout the stream, transition range steepening at ion scales is associated with …

Extended Cyclotron Resonant Heating Of The Turbulent Solar Wind, Trevor A. Bowen, Ivan Y. Vasko, Stuart D. Bale, Benjamin D G Chandran, Alexandros Chasapis, Thierry Dudok De Wit, Alfred Mallet, Michael Mcmanus, Romain Meyrand, Marc Pulupa, Jonathan Squire

Faculty Publications

Circularly polarized, nearly parallel propagating waves are prevalent in the solar wind at ion-kinetic scales. At these scales, the spectrum of turbulent fluctuations in the solar wind steepens, often called the transition range, before flattening at sub-ion scales. Circularly polarized waves have been proposed as a mechanism to couple electromagnetic fluctuations to ion gyromotion, enabling ion-scale dissipation that results in observed ion-scale steepening. Here we study Parker Solar Probe observations of an extended stream of fast solar wind ranging from ∼15 to 55 R ⊙. We demonstrate that, throughout the stream, transition range steepening at ion scales is associated with …

Multiscale Characterization Of Dislocation Development During Cyclic Bending Under Tension In Commercially Pure Titanium, Nathan Miller, Nicholas Pitkin, Talukder Musfika Tasnim Oishi, Desmond Mensah, Marko Knezevic, Michael Miles, David Fullwood

Faculty Publications

Continuous bending under tension (CBT) has been shown to increase room temperature elongation-to-failure in various sheet metals beyond that of simple tension. A greater understanding of deformation mechanisms in CBT would allow for its elongation-enhancing effects to be more fully exploited, creating potential for new forming strategies. CBT-induced cyclic bending/unbending stresses combined with applied macroscopic tensile stresses create complex through-thickness stress profiles, where differing hardening behavior is expected near the surfaces compared with the middle of the sheet. This work uses high resolution electron backscatter diffraction characterization of geometrically necessary dislocation density together with X-ray diffraction-based evaluations of total dislocation …

Accuracy Of Bathymetric Depth Change Maps Using Multi-Temporal Images And Machine Learning, Kim Lowell, Joan Hermann

Center for Coastal and Ocean Mapping

Most work to date on satellite-derived bathymetry (SDB) depth change estimates water depth at individual times t1 and t2 using two separate models and then differences the model estimates. An alternative approach is explored in this study: a multi-temporal Sentinel-2 image is created by “stacking” the bands of the times t1 and t2 images, geographically coincident reference data for times t1 and t2 allow for “true” depth change to be calculated for the pixels of the multi-temporal image, and this information is used to fit a single model that estimates depth change directly rather than indirectly as in the model-differencing …