Digital Commons Network^™

Sensitivity And Uncertainty Analysis Of Inertial Confinement Fusion Experiments, Colin A. Weaver

Nuclear Engineering ETDs

Sandia National Laboratories conducts Magnetized Liner Inertial Fusion (MagLIF) experiments at the Z Pulsed Power Facility. Their objective is to study the burning plasma formed under magnetic direct drive Inertial Confinement Fusion (ICF) conditions and use the inferred information to reduce uncertainty in computational models and improve experimental designs. The Z machine has five neutron time-of-flight (nToF) detectors that measure the fusion neutron time spectrum from three lines-of-sight. Together, these signals are used to infer the ion temperature, target liner mass density, and the burn history of the MagLIF experiment from measured data. These parameters are a few used by …

Risk Management Perceptions And Preventive Practices Of Athletic Directors From Naia Schools, Yan Gioseffi

Health, Exercise, and Sports Sciences ETDs

The increase in the number of incidents associated with sports has led to the rise of litigation, and physical, emotional, and financial damage to stakeholders. Collegiate athletic directors (ADs) have the duty to keep their programs safe.

This study aimed to explore and understand the practices, perceptions, and experiences of ADs from National Association of Intercollegiate Athletics (NAIA) institutions regarding preventive risk management. As risk management is significantly new in the sporting industry, an exploratory study using a qualitative design, grounded in narrative inquiry was conducted using the D.I.M. Process as a guide to collect data from 10 NAIA ADs …

Ms4 Swmpp 2023, National Technology & Engineering Solutions Of Sandia, Llc (Ntess) And Department Of Energy (Doe)

Municipal Separate Storm Sewer System (MS4) Permit

Stormwater discharges from Sandia National Laboratories/New Mexico (SNL/NM) are eligible for coverage under the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) Permit. This Stormwater Management Plan (SWMP) was prepared by National Technology and Engineering Solutions of Sandia (NTESS) for the Department of Energy (DOE) National Nuclear Security Administration (NNSA) Sandia Field Office (SFO), owner of SNL/NM, located in Albuquerque, NM.

The Bearing Earth: Colonization, Conservation, And Political Ecology In Costa Rica (Coto Brus 1948 - Present), Pablo Alonso Arias-Benavides

Latin American Studies ETDs

This thesis presents two questions: How are relationships between people in Coto Brus and the land – specifically, forest – mediated by social, political, and economic forces? How are personal and collective identities expressed through relationship with the landscape? I chose Coto Brus because it is a forested region of Costa Rica which was populated with state support in the 1950s, and because it is my father’s hometown. In order to understand the subjective experiences of Costa Ricans involved in deforestation and reforestation, I performed interviews in the canton, visited conservation sites, and analyzed historical sources. This study combines multiscale …

Measurements Of Scintillation Light Quenching For Protons In Rare-Earth Inorganic Scintillators, Tatiana Nathaly Espinoza

Nuclear Engineering ETDs

Scintillator detectors have become a leading choice of radiation detectors for a variety of applications, including space science. Due to their intrinsic characteristics, rare-earth inorganic scintillators provide the capability to detect both gamma and charged particles in a small detector. The response of these detectors is typically characterized using isotropic gamma sources. However, the light output produced in the scintillator from an incident gamma of a particular energy differs from the light output produced from an incident charged particle of the same energy; a phenomenon known as quenching. Using two types of rare-earth inorganic scintillators, Y2SiO5(YSO:Ce), and Gd₃Al₂Ga₃O₁₂(GAGG:Ce), we measured …

Tragic Fate And History In Thomas Hardy's "The Return Of The Native", Tristan Pageze

Foreign Languages & Literatures ETDs

This thesis explores the operation of the tragic in Thomas Hardy’s The Return of the Native by taking as a starting point the formalist approach to the genre of tragedy, before extending its definition to encompass the key concept of tragic conflict. This thesis argues that Hardy’s tragic vision takes for object human history, and especially the effects of new, unveiled knowledge on the human psyche, thus locating the root cause of tragedy in these contingencies. This continuum between individual action and the larger historical causes that shape it is expressed via the narrator’s discourse, and the discrepancy between his …

Optimizing High-Performance Computing Design: The Impacts Of Bandwidth And Topology Across Workloads For Distributed Shared Memory Systems, Jonathan A. Milton

Electrical and Computer Engineering ETDs

With the complexity of high-performance computing designs continuously increasing, the importance of evaluating with simulation also grows. One of the key design aspects is the network architecture; topology and bandwidth greatly influence the overall performance and should be optimized. This work uses simulations written to run in the Structural Simulation Toolkit software framework to evaluate a variety of architecture configurations, identify the optimal design point based on expected workload, and evaluate the changes with increased scale. The results show that advanced topologies outperform legacy architectures justifying the additional design complexity; and that after a certain point increasing the bandwidth provides …

Dynamic Fallowing In The Middle Rio Grande: A Look At The Environmental Water Leasing Program, Jared Wood

Water Resources Professional Project Reports

The Environmental Water Leasing Program (EWLP) is a federally-funded collaborative effort of the Middle Rio Grande Conservancy District and the U.S. Bureau of Reclamation that has paid irrigators in the Middle Rio Grande to temporarily lease water rights and forgo their water use so that it may be used to provide environmental flows for the endangered Rio Grande Silvery Minnow. The program operates in a sometimes socially contentious context, in a region with an overallocated, legally constrained water system, to offer much needed water management flexibility. While dynamic fallowing payments for ecosystem services programs like the EWLP are common policy …

Data-Driven Porosity Prediction For Directed Energy Deposition, Georgia E. Kaufman

Electrical and Computer Engineering ETDs

Stochastic flaw formation leading to poor print quality is a major obstacle to the utility of directed energy deposition (DED), a laser and metal powder-based additive manufacturing technology for construction and repair of custom metal parts. While melt pool temperature variability is known to be a major factor in flaw formation, control schemes to decrease flaw formation are limited by a lack of physics-based models that fully and accurately describe DED. In this work, a stochastic reachability analysis with a data-driven model based on thermal images of the melt pool was conducted to determine the likelihood of violating melt pool …

Progression Of Surface Flashover In Vacuum With Polymer Insulators, Kimberly M. Faris

Electrical and Computer Engineering ETDs

In pulsed power devices, an insulator is needed to isolate the transmission line from vacuum chambers. Vacuum is used as the insulator because it contains no atoms. Since it is being used as an insulator in these pulsed power insulation systems, surface flashover in vacuum is one of the most extensively studied areas since it being the greatest constraint in providing power due to dielectrics that are not able to sustain the voltage the system is operating under. These dielectrics are used in between high voltage electrodes in various pulsed power applications as electrical insulators to limit the electric current …

The Clear Path: A Framework For Enhancing Information Literacy Through Prompt Engineering, Leo S. Lo

University Libraries & Learning Sciences Faculty and Staff Publications

This article introduces the CLEAR Framework for Prompt Engineering, designed to optimize interactions with AI language models like ChatGPT. The framework encompasses five core principles—Concise, Logical, Explicit, Adaptive, and Reflective—that facilitate more effective AI-generated content evaluation and creation. Additionally, the article discusses technical aspects of prompts, such as tokens, temperature, and top-p settings. By integrating the CLEAR Framework into information literacy instruction, academic librarians can empower students with critical thinking skills for the ChatGPT era and adapt to the rapidly evolving AI landscape in higher education.

Groundwater Budgeting And Climate Change Vulnerability Assessment Of Water Supply At Bosque Del Apache National Wildlife Refuge, Maximiliano Trujillo

Water Resources Professional Project Reports

Water resources management is becoming increasingly complex in the Middle Rio Grande Valley, where the negative impacts of climate change and growing demand for a fully allocated river put further strain on diminishing water supply. The precarity of future water availability emphasizes the importance of fully accounting for existing water rights allocations and understanding how ever changing social and ecological processes might hinder those rights from being fully realized. This study aimed at improving knowledge of the groundwater budget at Bosque del Apache National Wildlife Refuge, New Mexico by utilizing experimental methods of Darcy Flow analysis to estimate groundwater flow …

Capacity And Communication: Addressing Barriers To Agricultural Innovations In The Middle Rio Grande Basin, Corina Michelle Gomez

Water Resources Professional Project Reports

Farmers and ranchers across the American Southwest are battling intense droughts, leaving them with decreasing water supplies to irrigate their fields or perform the necessary activities their operations require. These shortages have placed mounting pressures on agricultural water users and water managers alike to seek techniques and innovations that will stretch water supplies further and help them survive into the future. In an area like the Middle Rio Grande (MRG) basin in central New Mexico, for many farmers agriculture is more than a way to generate income, it’s a way of life. It is closely intertwined with the history of …

Irrigation And Innovation: Understanding Barriers To Innovative Actions To Manage Drought On Middle Rio Grande Farms, Eleanor C. Hasenbeck

Water Resources Professional Project Reports

The Rio Grande has irrigated agricultural land in central New Mexico since time immemorial. Today, agriculture in New Mexico’s Middle Rio Grande valley is adapting to an increasingly scarce water supply due to long-term drought and climate change (Dunbar et al., 2022). As supply is decreasing, demands are increasing because of several factors: an increase in evapotranspiration (Dunbar et al., 2022); population growth in the Middle Rio Grande valley (NM LFC, 2021); and legal obligations to provide water for endangered species and to Texas and Mexico (NM ISC, 2017). Agriculture is largest water use by sector in the Rio Grande …

Motivations And Barriers To Participation In Community Outreach And Engagement Among Environmental And Water Resources Students And Postdocs, Sydney Donohue

Water Resources Professional Project Reports

There is a need to utilize knowledge exchange avenues between academia and non-academic communities in order to advance environmental science and engineering education. Many universities and research centers attempt to enhance knowledge sharing by organizing broader impact outreach events such as lab tours, demonstrations, hands-on activities, and public presentations. Anecdotally, at two NSF-funded centers, the Transformation Network and Center for Water and the Environment, we have seen that only the same small subset of students and postdocs frequently participate while over 70% of those invited never volunteer. This study aims to survey environmentally-focused undergraduate students, graduate students, and postdocs’ motivations …

Long-Term Monitoring And Maintenance Plan For The Mixed Waste Landfill – March 2012, Revision 2, July 2023, Sandia National Laboratories/Nm Snl

Facilities-Units

The New Mexico Environment Department approved the Class 2 Permit Modification Request (23-024) to plug and abandon monitoring well MWL-MW4. The proposed revisions to the LTMMP have been incorporated as Revision 2 (July 2023) of the Long-Term Monitoring and Maintenance Plan for the Mixed Waste Landfill and replaces Revision 1 (dated February 2022). 268 pages.

Unm Pathology, Pathfinder Summer 2023, Unm Department Of Pahtology

Newsletters

No abstract provided.

Gold Thin Film Electrodes For High Sensitivity & Selectivity Electrochemical Detection Of Arsenite In Water, Tybur Q. Casuse Driovínto

Civil Engineering ETDs

This is partial fulfillment of a dissertation defense on electrochemical detection of Arsenic (As) in water using gold (Au) nanofilms as sensing electrodes. The maximum contaminant level of Arsenic in drinking water is set at 10 g L^-1 by the WHO and USEPA. Electrochemical detection by linear stripping voltammetry has comparable detection limits to more expensive laboratory-based methods but with added benefits of being portable and manufacturable. The work has developed sputtered and crystallographically oriented nanofilms for detection of trace As (III). Ultraflat Au(111) oriented thin films, Au(UTF), were compared to single crystal model electrodes to identify the impacts …

Methods Of Magneto-Optical Spectroscopy And Analysis For Porphyrins And Polymer Thin-Films, Emigdio E. Turner

Chemistry and Chemical Biology ETDs

This dissertation describes the construction of two high precision magneto-polarimeters for performing Faraday rotation and Magnetic Circular Dichroism (MCD) measurements of polymer thin-films. There is a focus in materials science on the development of thin-film magneto-optically active materials. These materials could allow for the construction of a thin-film optical diode, an important device for next-generation photonic technology. Upon completion of the Faraday rotation spectrometer, two publications were generated from Faraday rotation measurements of novel polymer thin-film materials.

With growing interest by materials scientists in magneto-optically active transition-metal containing materials, an MCD spectrometer was constructed to study these materials. This spectrometer …

From Austin To Santa Fe: Exploring The Prosecution Of Environmental Crimes Within Epa Region 6, Dr. Joshua Ozymy, Dr. Melissa Jarrell Ozymy

Natural Resources Journal

Criminal violations of environmental law are prosecuted by EPA and DOJ. Despite decades of such prosecutions, there has been relatively little analysis done towards understanding existing patterns in criminal prosecution of environmental crimes, especially on a regional basis. This article analyzes the 287 prosecutions which occurred in EPA Region 6 between 1983–2022, out of the 2,807 total environmental crimes prosecuted by all of EPA during that period. In the selected cases, defendants were cumulatively assessed with over $908 million in monetary penalties, 225 years of incarceration, and 1,032 years of probation. At 43 percent of the selected prosecutions, water pollution …

Some Aggregation Operators Of Credibility Interval Trapezoidal Fuzzy Neutrosophic Numbers And Their Decisionmaking Application Of Landslide Control Design Schemes, Wanlu Du, Shigui Du, Jun Ye

Neutrosophic Sets and Systems

No abstract provided.

Failure Analysis Of Pump Piping System Using Dematel Svn Methodology, R. Sundareswaran, S. Vijayan, Sneha S, Srinath Venkatesh, Vishnu Prasad P R, Viswapriya G, Lakshmi Narayan Mishra, Said Broum

Neutrosophic Sets and Systems

No abstract provided.

Single-Valued Neutrosophic Covering-Based Rough Set Model Over Two Universes And Its Application In Mcdm, Somen Debnath

Neutrosophic Sets and Systems

No abstract provided.

Homomorphism And Isomorphism Of Neutrosophic Over Topologized Graphs, G. Muthumari, R. Narmada Devi

Neutrosophic Sets and Systems

No abstract provided.

An Application Of Neutrosophic Sets To Decision Making, Michael Gr. Voskoglou

Neutrosophic Sets and Systems

No abstract provided.

Method For Comprehensive Evaluation Of Urban Smart Traffic Management System Based On The 2-Tuple Linguistic Neutrosophic Numbers, Yaping Liu, Huicong Wang, Dong Li, Yanqi Hou

Neutrosophic Sets and Systems

No abstract provided.

Topsis Method-Based Decision-Making Model Of Simplified Neutrosophic Indeterminate Sets For Teaching Quality Evaluation, Xueping Lu, Tong Zhang, Yiming Fang, Jun Ye

Neutrosophic Sets and Systems

No abstract provided.

Possibility Neutrosophic Hypersoft Set (Pnhss), Sumyyah Al-Hijjawi, Shawkat Alkhazaleh

Neutrosophic Sets and Systems

No abstract provided.

Group Decision-Making Model Using The Exponential Similarity Measure Of Confidence Neutrosophic Number Cubic Sets In A Fuzzy Multi-Valued Circumstance, Sumin Zhang, Jun Ye

Neutrosophic Sets and Systems

No abstract provided.

Neutrosophic Model For Vehicular Malfunction Detection, Marwa Elshahawy, Nada A. Nabeeh, Ahmed Aboelfetouh, Hazem M. El-Bakr

Neutrosophic Sets and Systems

No abstract provided.