Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Computer Sciences (16298)
- Chemistry (12829)
- Environmental Sciences (10013)
- Earth Sciences (9333)
- Physics (8069)
-
- Engineering (7739)
- Mathematics (6288)
- Life Sciences (5736)
- Geology (5395)
- Oceanography and Atmospheric Sciences and Meteorology (4147)
- Statistics and Probability (3780)
- Social and Behavioral Sciences (3375)
- Applied Mathematics (2366)
- Medicine and Health Sciences (1971)
- Artificial Intelligence and Robotics (1894)
- Electrical and Computer Engineering (1738)
- Databases and Information Systems (1614)
- Natural Resources and Conservation (1447)
- Computer Engineering (1442)
- Organic Chemistry (1442)
- Oceanography (1438)
- Civil and Environmental Engineering (1405)
- Astrophysics and Astronomy (1359)
- Water Resource Management (1342)
- Analytical Chemistry (1328)
- Materials Science and Engineering (1288)
- Geophysics and Seismology (1280)
- Business (1252)
- Sustainability (1245)
- Institution
-
- Louisiana State University (2591)
- Air Force Institute of Technology (2216)
- William & Mary (1952)
- Utah State University (1884)
- Brigham Young University (1867)
-
- University of Tennessee, Knoxville (1759)
- Old Dominion University (1689)
- University of Central Florida (1665)
- University of South Florida (1607)
- Missouri University of Science and Technology (1572)
- Western University (1483)
- University of Texas at Arlington (1423)
- Western Michigan University (1407)
- Chulalongkorn University (1330)
- University of Arkansas, Fayetteville (1326)
- Portland State University (1232)
- University of Texas at El Paso (1212)
- University of Nevada, Las Vegas (1177)
- New Jersey Institute of Technology (1167)
- University of New Mexico (992)
- University of Kentucky (984)
- Clemson University (930)
- California Polytechnic State University, San Luis Obispo (924)
- City University of New York (CUNY) (910)
- University at Albany, State University of New York (873)
- San Jose State University (872)
- University of Wisconsin Milwaukee (872)
- University of South Carolina (865)
- Nova Southeastern University (801)
- Wright State University (780)
- Keyword
-
- Machine learning (861)
- Machine Learning (582)
- Pure sciences (564)
- Applied sciences (518)
- Mathematics (497)
-
- Chemistry (415)
- Geology (374)
- Climate change (344)
- Deep learning (344)
- Computer Science (320)
- Statistics (318)
- Sustainability (308)
- Montana (283)
- Optimization (280)
- Simulation (264)
- Physics (257)
- Computer science (254)
- College for Professional Studies (253)
- Department of Computer Science and Engineering (243)
- Geochemistry (241)
- Remote sensing (238)
- Deep Learning (237)
- School of Computer & Information Science (236)
- Education (235)
- Algorithms (234)
- Nanoparticles (225)
- Modeling (223)
- Synthesis (221)
- Artificial intelligence (217)
- Security (214)
- Publication Year
- Publication
-
- Theses and Dissertations (8341)
- Electronic Theses and Dissertations (4195)
- Masters Theses (2631)
- Honors Theses (2059)
- Doctoral Dissertations (1882)
-
- Dissertations, Theses, and Masters Projects (1876)
- Dissertations (1736)
- USF Tampa Graduate Theses and Dissertations (1607)
- Electronic Thesis and Dissertation Repository (1477)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (1427)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (1330)
- LSU Doctoral Dissertations (1256)
- Open Access Theses & Dissertations (1212)
- Dissertations and Theses (1186)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (1170)
- Theses (1078)
- Graduate Theses and Dissertations (1072)
- LSU Master's Theses (1047)
- Master's Theses (865)
- Master's Projects (852)
- Browse all Theses and Dissertations (780)
- Walden Dissertations and Doctoral Studies (768)
- Dissertations, Theses, and Capstone Projects (707)
- Legacy Theses & Dissertations (2009 - 2024) (677)
- WWU Graduate School Collection (571)
- Wayne State University Dissertations (571)
- All Dissertations (512)
- CCE Theses and Dissertations (488)
- Theses Digitization Project (458)
- Graduate College Dissertations and Theses (456)
Articles 1471 - 1500 of 69103
Full-Text Articles in Physical Sciences and Mathematics
Self-Exciting Point Processes In Real Estate, Ian Fraser
Self-Exciting Point Processes In Real Estate, Ian Fraser
Theses and Dissertations (Comprehensive)
This thesis introduces a novel approach to analyzing residential property sales through the lens of stochastic processes by employing point processes. Herein, property sales are treated as point patterns, using self-exciting point process models and a variety of statistical tools to uncover underlying patterns in the data. Key findings include the identification and explanation of clustering in both space and time, and the efficacy of a temporal Hawkes process with a sinusoidal background in predicting home sale occurrences. The temporal analysis starts by employing the state of art techniques for time series data like regression, autoregressive, and autoregressive integrated moving …
Recoloring In Hereditary Graph Classes: Structure And Decomposition, Manoj Belavadi
Recoloring In Hereditary Graph Classes: Structure And Decomposition, Manoj Belavadi
Theses and Dissertations (Comprehensive)
In this thesis we study reconfiguration problems in graph theory. A reconfiguration problem is generally defined on the solution space of a problem for which a configuration can be defined as a feasible solution, for example, a coloring of a graph. In Chapters 1 through 4 we study the reconfiguration of vertex colorings. The reconfiguration graph of the k-colorings, denoted Rk(G), is the graph whose vertices are the k-colorings of G and two colorings are adjacent in Rk(G) if they differ on exactly one vertex. The basic question investigated here …
Fr1: Comics, Cyborgs, And “In Between” Identities, Ella Lehavi
Fr1: Comics, Cyborgs, And “In Between” Identities, Ella Lehavi
Scripps Senior Theses
As a queer Jew who grew up surrounded by immigrant cultures and communities, I find myself in a liminal space between my identities and the dominant culture of my country– one where my perspective on gender and my cultural experiences aren’t fully understood by the world I exist in. Comics and cartoons are an explorational platform for concepts of reality and identity; they are one of very few spaces where I see my identities explored with so much depth and care.
Cartoons and comics exist in between realistic depictions and abstraction. This makes them a great place to express all …
Bayesian Inference In Reinforcement Learning Neural Networks During A Markov Decision Processes?, Katherine Graham
Bayesian Inference In Reinforcement Learning Neural Networks During A Markov Decision Processes?, Katherine Graham
Scripps Senior Theses
The predictive mind theory proposes that brains work in a way that makes predictions about future stimuli to process information efficiently and accurately. Bayesian brain theory suggests that the brain utilizes Bayesian probability models to make predictions, while the free-energy minimization hypothesis proposes that these predictions are made to minimize energy or uncertainty, ensuring accurate perceptions. Vertechi et al. (2020) explored animal participants’ utilization of stimulus-bound strategy versus inference-based strategy to solve a Markov decision process with a 2-state environment, one of which is always active. These sites have a certain probability of switching to a different site and the …
Statistically Principled Deep Learning For Sar Image Segmentation, Cassandra Goldberg
Statistically Principled Deep Learning For Sar Image Segmentation, Cassandra Goldberg
Honors Projects
This project explores novel approaches for Synthetic Aperture Radar (SAR) image segmentation that integrate established statistical properties of SAR into deep learning models. First, Perlin Noise and Generalized Gamma distribution sampling methods were utilized to generate a synthetic dataset that effectively captures the statistical attributes of SAR data. Subsequently, deep learning segmentation architectures were developed that utilize average pooling and 1x1 convolutions to perform statistical moment computations. Finally, supervised and unsupervised disparity-based losses were incorporated into model training. The experimental outcomes yielded promising results: the synthetic dataset effectively trained deep learning models for real SAR data segmentation, the statistically-informed architectures …
Gnss Radio Propagation Through Trapped Atmospheric Lee Waves In The San Bernardino Valley, Ca, Logan Grey
Gnss Radio Propagation Through Trapped Atmospheric Lee Waves In The San Bernardino Valley, Ca, Logan Grey
All Master's Theses
Atmospheric lee waves, also known as mountain waves, are a type of gravity wave that form as air that is forced over a mountain creates turbulence downstream. Trapped, or stationary, lee waves located directly over a Global Navigation Satellite System (GNSS) receiver on Earth’s surface appear to lead to anomalies in the receiver’s position estimate, usually skewed toward the neighboring mountain range. The exact mechanism by which trapped lee waves might cause these anomalies is not known, and so my research aims to understand this. GNSS station P612 located in the lee of the San Bernardino Mountains in southern California …
Adaptable And Trustworthy Machine Learning For Human Activity Recognition From Bioelectric Signals, Morgan S. Stuart
Adaptable And Trustworthy Machine Learning For Human Activity Recognition From Bioelectric Signals, Morgan S. Stuart
Theses and Dissertations
Enabling machines to learn measures of human activity from bioelectric signals has many applications in human-machine interaction and healthcare. However, labeled activity recognition datasets are costly to collect and highly varied, which challenges machine learning techniques that rely on large datasets. Furthermore, activity recognition in practice needs to account for user trust - models are motivated to enable interpretability, usability, and information privacy. The objective of this dissertation is to improve adaptability and trustworthiness of machine learning models for human activity recognition from bioelectric signals. We improve adaptability by developing pretraining techniques that initialize models for later specialization to unseen …
Large Language Models, Prompting, And Synthetic Data Generation For Continual Named Entity Recognition, Charles I. Cutler
Large Language Models, Prompting, And Synthetic Data Generation For Continual Named Entity Recognition, Charles I. Cutler
Theses and Dissertations
With the ever-growing amount of textual data, the task of Named Entity Recognition (NER) is vital to Natural Language Processing (NLP), a field which focuses on enabling computers to understand and manipulate human language. NER enables the extraction of information from unstructured text. Accurate information extraction is crucial for applications ranging from information retrieval to systems for question-answering. To ensure that NER models are robust to changes in data distributions and capable of recognizing new entity types, one may consider expanding the capabilities of an existing model. Continual learning is a paradigm within machine learning. It studies the objective of …
Asymmetric Cuh-Catalyzed Reductive Coupling Of Allenamides With Carbonyl And Imine Electrophiles, Stephen Collins
Asymmetric Cuh-Catalyzed Reductive Coupling Of Allenamides With Carbonyl And Imine Electrophiles, Stephen Collins
Theses and Dissertations
The carbon scaffold of many drugs and natural products contain multiple stereogenic centers bearing heteroatoms. As a result of this, chemists have long sought methods to efficiently install these multi-heteroatom functionalities. Reductive coupling reactions have been extensively studied over the past decades, and the allylation of carbonyls via the reductive coupling approach has been a key method for generating chiral allylic alcohols. This work utilizes inexpensive Cu for the asymmetric reductive coupling of allenamides with carbonyls or imines to simultaneously install two heteroatoms (either oxygen and nitrogen or nitrogen and nitrogen, respectively) onto the product. These molecules have a polarity …
Paley Graphs, Prime Graphs, And Crossword Puzzles, Robert D. Jacobs Jr.
Paley Graphs, Prime Graphs, And Crossword Puzzles, Robert D. Jacobs Jr.
Theses and Dissertations
In this paper, we will talk about many different mathematical concepts. We will prove theorems about Paley graphs, prime graphs, and crossword puzzles. It will be very fun.
The results in the section about Paley graphs include structure theorems about the subgraph induced by the quadratic residues, the subgraph induced by the non-residues and a few related subgraphs. The main is to better understand the “independence structure” of the Paley graph itself. No good upper bound on the independence number of Paley graphs is known. Theorems about these subgraphs, and various counts aim at future improvement of upper bounds for …
Bayesian Estimation Of Hierarchical Linear Models From Incomplete Data: Cluster-Level Non-Linear Effects And Small Sample Sizes, Dongho Shin
Theses and Dissertations
We consider Bayesian estimation of a hierarchical linear model (HLM) from small sample sizes. The continuous response Y and covariates C are partially observed and assumed missing at random. With C having linear effects, the HLM may be efficiently estimated by available methods. When C includes cluster-level covariates having interactive or other nonlinear effects given small sample sizes, however, maximum likelihood estimation is suboptimal, and existing Gibbs samplers are based on a Bayesian joint distribution compatible with the HLM, but impute missing values of C by a Metropolis algorithm via a proposal density having a constant variance while the target …
Mathematical Modeling And Analysis Of Inflammation And Tissue Repair: Lung Inflammation And Wound Healing In Corals Under Stress, Quintessa Hay
Mathematical Modeling And Analysis Of Inflammation And Tissue Repair: Lung Inflammation And Wound Healing In Corals Under Stress, Quintessa Hay
Theses and Dissertations
A variety of insults, including tissue injury and/or exposure to pathogen, elicit an immune response in many organisms. An improperly regulated immune response can result in deleterious effects to the organism. Here we present models for lung injury in young and old mice and models for wound healing in coral reefs.
It is well known that the immune response becomes less effective in older individuals. This is of particular interest in pulmonary insults such as ventilator induced lung injury (VILI) or lung infection. We extended a mathematical model for the inflammatory response to VILI and used experimental data to select …
Measuring The Properties Of Rod-Shaped Bacteria By Single-Entity Electrochemistry, Ashley Tubbs
Measuring The Properties Of Rod-Shaped Bacteria By Single-Entity Electrochemistry, Ashley Tubbs
Theses and Dissertations
Antibiotic-resistant bacteria pose a significant and escalating threat to hospitals around the world, necessitating the development of rapid and sensitive detection methods. Single-entity electrochemistry has emerged as a promising approach for detecting and identifying such bacteria, and monitoring the efficacy of antibiotics in real-time. Herein, we employ the translational diffusion equation for circular cylinders to predict the collision frequency of rod-shaped bacteria, informing our experimental setup. Our work demonstrates that lab-fabricated Pt ultramicroelectrodes can sensitively detect bacteria at femtomolar concentrations under migration-controlled conditions. Further, we present a method implemented in MatLab to automate the analysis of step-like signals observed in …
Graph Coloring Reconfiguration, Reem Mahmoud
Graph Coloring Reconfiguration, Reem Mahmoud
Theses and Dissertations
Reconfiguration is the concept of moving between different solutions to a problem by transforming one solution into another using some prescribed transformation rule (move). Given two solutions s1 and s2 of a problem, reconfiguration asks whether there exists a sequence of moves which transforms s1 into s2. Reconfiguration is an area of research with many contributions towards various fields such as mathematics and computer science.
The k-coloring reconfiguration problem asks whether there exists a sequence of moves which transforms one k-coloring of a graph G into another. A move in this case is a type …
Microstructural, Mineralogical, And Chemical Characterization Of The Handys Bend And Flax Creek Meteorites, Kentucky: Relevance For The Iron Meteorite Record, Ethan S.L. Davis
Microstructural, Mineralogical, And Chemical Characterization Of The Handys Bend And Flax Creek Meteorites, Kentucky: Relevance For The Iron Meteorite Record, Ethan S.L. Davis
Theses and Dissertations--Earth and Environmental Sciences
Iron meteorites remain the only material view into planetary cores. Despite their scientific relevance, iron meteorites are relatively rare. In June 2021 and March 2022, the Kentucky Geological Survey received requests to identify two metallic specimens discovered in central Kentucky. The specimens were given the provisional names Handys Bend (3175.2 g) and Flax Creek (286.2 g). The goal of this project is to confirm meteoritic origin, characterize their structures and chemistry, assign genetic classifications, and examine potential relations to previous discoveries. Petrography was conducted using scanning electron microscopy. Mineral phases were examined using X-Ray diffraction crystallography. Chemical compositions were determined …
Blockchain For Computational Integrity And Privacy, Rahul Raj
Blockchain For Computational Integrity And Privacy, Rahul Raj
Theses and Dissertations
This study proposes a blockchain based system that utilizes fully homomorphic encryption to provide security of data in use as well as computational integrity. This is achieved by leveraging the attributes of blockchain which provides availability and data integrity combined with homomorphic encryption that provides confidentiality. The proposed system is designed to perform statistical operations, including mean, median and variance, on encrypted data, thus providing confidentiality of data while in use. The computations are performed on the smart contract, residing on the blockchain which provides computational integrity. The results indicate that it is possible to perform fully homomorphic computations on …
Next-Generation High-Performance Virtual Reality And Augmented Reality Light Engines, Zhiyong Yang
Next-Generation High-Performance Virtual Reality And Augmented Reality Light Engines, Zhiyong Yang
Graduate Thesis and Dissertation 2023-2024
The immersive virtual reality (VR) and the optical see-through augmented reality (AR) are expected to revolutionize human lives in work, education, entertainment, healthcare, spatial computing, and digital twins, just to name a few. Next-generation VR/AR devices should exhibit a wide field-of-view (FoV), crisp image without screen-door effect, high dynamic range, compact form factor and lightweight, and low power consumption. Such demanding requirements pose a significant challenge to traditional direct-view display panels. To address these technical challenges, novel approaches need to be proposed. This dissertation is devoted to developing next-generation high-performance display light engines toward high resolution density, high optical efficiency, …
Photoinduced Alpha-Hydroxy C–H Alkylation Of Mono-Alcohols Via Hydrogen Atom Transfer (Hat) Of An Activated Boron-Containing Complex, Courtney Deanna Glenn
Photoinduced Alpha-Hydroxy C–H Alkylation Of Mono-Alcohols Via Hydrogen Atom Transfer (Hat) Of An Activated Boron-Containing Complex, Courtney Deanna Glenn
Graduate Theses, Dissertations, and Problem Reports
Hydroxy (-OH) groups are one of the most abundant functional groups found in natural products and pharmaceuticals with many of these compounds containing multiple alcohol classes. The ability to selectively functionalize a specific α-OH C–H bond in the presence of other competitive sites would provide straightforward access to new, potentially bioactive compounds. In recent literature, photoredox catalysis has been implemented to perform site and stereoselective α-OH C–H functionalization of cis-diol containing substrates. Incorporating an organoboron cocatalyst into these systems have proven to be crucial in decreasing the bond dissociation energy (BDE) and increasing hydricity of the α-OH C–H bond …
Dependence Of Energy Transfer On Curvature Similarity In Collisions Involving Curved Shock Fronts, Justin Cassell
Dependence Of Energy Transfer On Curvature Similarity In Collisions Involving Curved Shock Fronts, Justin Cassell
Dissertations, Master's Theses and Master's Reports
In high-speed collisions of projectiles, pressure exerted by a resulting shock wave is so high that even solids begin to flow and hydrodynamics becomes relevant. Jetting results from hydrodynamic instability driving the evolution of an interface following shock loading. Our emphasis in this dissertation is mitigation of instabilities via several shocks and, specifically, the transfer of energy from a shock wave to another object. To that end, in 2022 and 2023 while on-site, we adapted Lawrence Livermore National Laboratory (LLNL) to explore the effects of shock front geometry on the transfer of energy during shock collisions via numerous computer simulations. …
Optimizing Php Api Calls With Pagination And Caching, Parsharam Reddy Sudda
Optimizing Php Api Calls With Pagination And Caching, Parsharam Reddy Sudda
Dissertations, Master's Theses and Master's Reports
The Keweenaw Time Traveler (KeTT) project is devoted to mapping the historical and social landscapes of the Keweenaw Peninsula. During the project, it was discovered that the server-side performance needed improvement. To address this issue, the "Optimizing PHP API Calls with Pagination and Caching" initiative was launched. This initiative focused on refining API calls, implementing server caching and pagination, and fortifying security against common vulnerabilities. The project successfully mitigated risks associated with SQL Injection and XSS through meticulous code enhancements while improving error handling. Additionally, the introduction of Scroll-Induced Pagination optimized data delivery, significantly reducing response times, and elevating the …
Origin Of Carbonate Mud Mounds In Southwestern Missouri, Jared Mcavoy
Origin Of Carbonate Mud Mounds In Southwestern Missouri, Jared Mcavoy
MSU Graduate Theses
Small carbonate mud mounds are found in Lower Mississippian strata of southwestern Missouri. These compare favorably with larger mounds, known as Waulsortian mounds, located in the Meuse River valley of southern Belgium. The origin of Waulsortian and similar mounds is unknown, but they commonly are interpreted as accumulations of mud, where the presence of biological organisms responsible for supposed bio-construction remains uncertain. Alternative hypotheses are that these may have been non-cohesive slump or cohesive slide masses. Multiple techniques, including δ13C and δ18O isotopic analyses and unmanned aerial vehicle photography, were used to determine the most feasible working hypothesis. Determining the …
Thermochronology And Exhumation Dynamics Of Metamorphic Units In The Salmon River Suture Zone, Jonathan J. Cone
Thermochronology And Exhumation Dynamics Of Metamorphic Units In The Salmon River Suture Zone, Jonathan J. Cone
MSU Graduate Theses
The Salmon River suture zone in western Idaho records the Jurassic-Cretaceous (160-90 Ma) accretion of amalgamated volcanic arc terranes onto the North American continent. Rocks exposed at the surface record burial to depths of more than 20 kilometers, with unclear drivers for uplift and exhumation. Two competing hypotheses have been proposed to explain the transport of deep crustal rocks to the surface: (1) delamination of a dense lithospheric root resulted in rapid isostatic uplift of the crust and (2) exhumation of crustal blocks along thrust faults. To test these models, I present temperature-time (T-t) paths for mid-crustal metamorphic rocks constructed …
An Exploration Of Misconceptions In Introductory Physics, Christopher Mattthew Wheatley
An Exploration Of Misconceptions In Introductory Physics, Christopher Mattthew Wheatley
Graduate Theses, Dissertations, and Problem Reports
The study of student misconceptions about physics concepts has long been an important area of inquiry in physics education research (PER). The research discussed in this dissertation builds upon the developments in PER by exploring the prevalence of consistently held undergraduate student misconceptions in introductory calculus-based physics. This thesis explores the nature of student misconceptions, mistakes, and naive answering patterns in both introductory undergraduate Newtonian mechanics and electromagnetism by applying a network analytic technique called module analysis to student responses to different concept inventories from institutions of various levels of incoming physics preparation. Each study applying these methods also demonstrates …
Quantifying Chemical Erosion In The Lithologically-Heterogenous Appalachian Valley And Ridge, Amelia Jayne Zanoni
Quantifying Chemical Erosion In The Lithologically-Heterogenous Appalachian Valley And Ridge, Amelia Jayne Zanoni
Graduate Theses, Dissertations, and Problem Reports
Quantifying chemical erosion in the lithologically-heterogenous Appalachian Valley and Ridge
Amelia J. Zanoni
The interplay between physical and chemical erosion is well understood in landscapes underlain by a uniform rock type, but many regions are underlain by a mixture of rock types with varying erosion resistance and solubility. We used measurements of stream-water chemistry to estimate chemical erosion rates in the Appalachian Valley and Ridge, a region where the mechanisms of lithologic control over topography are poorly understood. Newly acquired stream water samples were collected from 51 locations across the research area during the Fall of 2023. The sampled waters …
Using Ontological Methods To Compare Cybersecurity Maturity Model Certification 2.0 And Cobit 19, Aaron Marshall Ramey
Using Ontological Methods To Compare Cybersecurity Maturity Model Certification 2.0 And Cobit 19, Aaron Marshall Ramey
CCE Theses and Dissertations
Cybersecurity frameworks developed by a variety of organizations and implemented by a much larger collection of organizations differ in their focus and application. Whether designed by a private or government organization, the primary goal is to provide a framework to assess and reduce risk. The Department of Defense (DoD) has recently implemented the second version of the Cybersecurity Maturity Model Certification (CMMC 2.0). In some situations, compliance with CMMC 2.0 has already become mandatory for the Defense Industrial Base (DIB). Compliance will soon be required for all Large Businesses (LB) and Small Businesses (SB) within the DIB. While COBIT 19 …
Mesmerizing Moon Mysteries: Unraveling The Compositions Of Irregular Mare Patches (Imps) Using Remote Observations, Nicholas G. Piskurich
Mesmerizing Moon Mysteries: Unraveling The Compositions Of Irregular Mare Patches (Imps) Using Remote Observations, Nicholas G. Piskurich
Graduate Thesis and Dissertation 2023-2024
Compositional characterization of lunar surface features informs our understanding of the Moon's thermal and magmatic evolution. We investigated the compositions of hypothesized volcanic features known as irregular mare patches (IMPs) and their surroundings to constrain formation mechanisms. We used six datasets to assess the composition of 12 IMPs: 1) Moon Mineralogy Mapper (M3) derived spectral parameters (e.g., band center positions, shapes), 2) Lunar Reconnaissance Orbiter (LRO) Diviner Radiometer Experiment (Diviner) measured Christiansen feature (CF) position, 3) SELENE (Kaguya) Multiband Imager (MI) FeO abundance, 4) Clementine 5-band (Ultraviolet/Visible)-derived FeO abundance, 5) LRO Wide Angle Camera (WAC) TiO2 abundance, …
Doubly Rotating Coordinates: Wave Functions In Magnetic Resonance Problems, Sunghyun Kim
Doubly Rotating Coordinates: Wave Functions In Magnetic Resonance Problems, Sunghyun Kim
Graduate Thesis and Dissertation 2023-2024
The nuclear spin response to a rotating field H has been theoretically investigated from the 1930s to the 1950s. Building upon Majorana's probability theory, the behavior of spin 1/2 is well-illustrated in the joint review by Rabi, Ramsey, andSchwinger, and their spin wave function ψ is succinctly restated by Gottfried: ψ(t) = e-iIzωt/ℏe-i[Iz(ω0-ω)+Ixω1]t/ℏψ(0).
However, the complexity involved in evaluating the wave function ψ in terms of probability amplitudes Cm attributed to the noncommutative nature of spin operators [Ix, I …
The Case For Photothermal Spectroscopy In The Future Of Planetary Science Missions, Christopher T. Cox
The Case For Photothermal Spectroscopy In The Future Of Planetary Science Missions, Christopher T. Cox
Graduate Thesis and Dissertation 2023-2024
Optical PhotoThermal InfraRed (O-PTIR) is a relatively new spectroscopy method for studying materials. It produces transmission-like spectra using a remote reflectance technique that is rapid, requires little sample preparation, and is well-suited for the technique to be adapted for a space flight instrument. The method involves a tunable pulsed IR laser creating a photothermal effect on the surface of a material and measuring the distortion of a probing visible laser in the same region of the sample, which can be obtained at sub-micron spatial resolutions. A measurement campaign was performed utilizing Photothermal Spectroscopy Corporation's O-PTIR instrument, mIRage®. In this campaign, …
The Effects Of Seaweed Farming On Local Ecosystems In The United States, Reid Cohen
The Effects Of Seaweed Farming On Local Ecosystems In The United States, Reid Cohen
Pitzer Senior Theses
In my thesis, I explore how seaweed farming contributes to the regeneration of marine ecosystems, supports biodiversity, and assists in harmful nutrient removal. Seaweed farming is a relatively unexplored industry in the United States with huge carbon capturing potential. Seaweed farming poses a significant opportunity for a project that has the potential to sequester carbon, increase biodiversity, protect coastal ecosystems, naturally clean water, provide biofuel capabilities, substitute as livestock fodder which then decreases methane emissions, along with many more benefits. Kelp supports biodiversity in marine ecosystems and provides essential habitats for various species. The seaweed farming industry holds profound potential …
A Praxis Towards Social Change Based On Foucault's Conceptualization Of Experience As Relational, Lila Maureen Wakeman
A Praxis Towards Social Change Based On Foucault's Conceptualization Of Experience As Relational, Lila Maureen Wakeman
Theses and Dissertations--Philosophy
This project develops a praxis towards social change based on the works of Michel Foucault. It first establishes Foucault’s philosophical assumptions, methods, and political goal of countering “objectivizing” modern Western social forces. It then draws on sources from the three major phases of Foucault’s career to trace his development of a general conceptualization of experience as relational, or as non-exhaustively co-constituted by and through three indispensable kinds of social forces: knowledge, power, and ethics. It then evaluates implications of Foucauldian experience for efforts towards social change to conceptualize a general Foucauldian praxis towards social change. The praxis aims to affect …