Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (11520)
- Social and Behavioral Sciences (8861)
- Physical Sciences and Mathematics (8762)
- Education (7966)
- Arts and Humanities (6811)
-
- Life Sciences (4980)
- Medicine and Health Sciences (4195)
- Psychology (3508)
- Computer Sciences (2734)
- Business (2721)
- Electrical and Computer Engineering (2208)
- Aerospace Engineering (1775)
- Mechanical Engineering (1703)
- Chemistry (1402)
- Civil and Environmental Engineering (1335)
- Sociology (1331)
- Operations Research, Systems Engineering and Industrial Engineering (1288)
- Physics (1147)
- Communication (1011)
- History (1004)
- Religion (959)
- Higher Education (954)
- Art and Design (948)
- Educational Administration and Supervision (903)
- Educational Leadership (886)
- Biology (868)
- Curriculum and Instruction (833)
- Earth Sciences (826)
- Architecture (803)
- Mormon Studies (787)
- Institution
-
- University of North Dakota (13256)
- Brigham Young University (11126)
- Air Force Institute of Technology (8055)
- Virginia Commonwealth University (7661)
- Mississippi State University (6341)
-
- University of South Carolina (6088)
- Rowan University (3483)
- American University in Cairo (2692)
- University for Business and Technology in Kosovo (2537)
- University of Texas Rio Grande Valley (1846)
- Illinois State University (1786)
- Pepperdine University (1685)
- Florida Institute of Technology (1634)
- City University of New York (CUNY) (1517)
- University of Arkansas Little Rock (1333)
- St. John's University (1105)
- Columbus State University (754)
- Nova Southeastern University (710)
- SASTRA Deemed to be University (228)
- Texas A&M International University (217)
- Seattle Pacific University (14)
- UAlaska System (7)
- CentraCare Health (6)
- Southern Methodist University (4)
- Michigan Technological University (3)
- Utah State University (3)
- Alabama State University (2)
- University of Arkansas, Fayetteville (2)
- Louisiana Tech University (1)
- Keyword
-
- Education (718)
- North Dakota (547)
- United States (459)
- Leadership (407)
- Dissertations (EdD) -- Organizational leadership (382)
-
- Utah (363)
- History (356)
- Machine learning (355)
- #antcenter (348)
- Gender (325)
- Women (277)
- Painting (267)
- Egypt (233)
- Autism (232)
- Depression (230)
- Dissertations (PsyD) -- Psychology (228)
- Art (227)
- Higher education (215)
- Motivation (211)
- Technology (208)
- Optimization (207)
- Mental health (205)
- Cancer (200)
- Identity (196)
- Children (195)
- Memory (193)
- Self-efficacy (187)
- Mormon Church (185)
- Professional development (185)
- Performance (180)
- Publication Year
- File Type
Articles 6541 - 6570 of 74096
Full-Text Articles in Entire DC Network
Traveling Wave Fronts Of Reaction Diffusion Differential Equations With Diffusive Delay In Biological And Chemical Models, William Barker
Traveling Wave Fronts Of Reaction Diffusion Differential Equations With Diffusive Delay In Biological And Chemical Models, William Barker
Theses and Dissertations
Functional differential equations (FDE) incorporate past states and or rates in the modeling of physical phenomena. Unlike ordinary and even some partial differential equations there is no method to find solutions of general FDE explicitly. Therefore, in order to study solutions of FDE, iterative techniques are often employed. Reaction diffusion equations are a specific type of partial differential equations that model diffusive spread, the rate of spread of due to a reaction term of some quantity. These equations arise naturally in fields such as biology, ecology and chemistry. In terms of studying dynamics of populations, previous states and even rates …
Effective Communication And Collaboration In Project Management: A Study Of The Use Of Document Version Control In Higher Education, Laura Primozic George
Effective Communication And Collaboration In Project Management: A Study Of The Use Of Document Version Control In Higher Education, Laura Primozic George
Theses and Dissertations
Facilities planning in higher education necessitates collaborative efforts from various stakeholders working as a cohesive team. This study emphasizes the significance of implementing document version control to attain communication that is both effective and efficient while establishing a collaborative approach. The study advocates for Document Management Systems that allow for document sharing and should be a standardized tool for group document collaboration.
Development Of Bifunctional Peptides As Scaffolds For Bifunctional Catalysis And A Novel Method Of Peptide Stapling Using Squaric Esters, Adam X. Wayment
Development Of Bifunctional Peptides As Scaffolds For Bifunctional Catalysis And A Novel Method Of Peptide Stapling Using Squaric Esters, Adam X. Wayment
Theses and Dissertations
Enzymes are some of nature's most powerful tools in chemical processes. However, their molecular complexity makes them difficult to synthesize and complicates their application in traditional organic synthesis. Peptides, a building block of enzymes, can be rapidly synthesized and have been used as a possible alternative in achieving enzyme-like catalysis. However, most peptide-based catalysts are limited in reaction-scope and are unable to incorporate traditional organic catalysts. We have designed a helical peptide scaffold capable of being functionalized with a wide variety of organocatalysts as well as transition-metal based catalysts. In order to understand how the peptide structure effects reactivity and …
Using Eye-Tracking To Examine How Chinese Foreign Language Learners Attend To Chinese Radicals, Yi Hsuan Lin
Using Eye-Tracking To Examine How Chinese Foreign Language Learners Attend To Chinese Radicals, Yi Hsuan Lin
Theses and Dissertations
This study utilized eye-tracking to investigate 63 intermediate-level university Chinese foreign language (CFL) learners' real-time radical preferences. Radicals are components of Chinese characters and give clues to the meanings and pronunciations of the character. This study aimed to answer the following research questions: (1) What type of radicals (semantic/phonetic) do CFL readers most rely on when reading characters? (2) Does reliance on one type of radical (semantic/phonetic) correlate with accuracy in character recognition? (3) Does awareness of semantic/phonetic radicals affect the accuracy of character recognition or reliance on radicals in real-time processing? The results found that participants demonstrated a phonetic …
Ecological Drivers Of Plasticity And Parental Care In Poison Frogs, Olivia Brooks
Ecological Drivers Of Plasticity And Parental Care In Poison Frogs, Olivia Brooks
Theses and Dissertations
Parents increase their offspring fitness prospects by providing care, but at the cost of lost current or future reproductive opportunities. Parents often rear multiple offspring simultaneously, and because parents cannot supply unlimited care to their offspring, parents benefit from distributing resources non-randomly within a brood. Having access to information that helps inform allocation decisions can be valuable to parents, and parents may use a variety of information types that are either intrinsic or extrinsic to the offspring to help inform these decisions. Here, I explore the types of information that parents use when allocating resources within broods, and I explore …
Ecosystem Services Provided By The Novel Winter Cash Cover Crop, Pennycress, Ryan Thomas Meyer
Ecosystem Services Provided By The Novel Winter Cash Cover Crop, Pennycress, Ryan Thomas Meyer
Theses and Dissertations
Nutrient loss from agricultural practices in the Midwest contributes to degradation in ecosystem structure and function. Subsurface drainage systems in tilled corn-soybean rotations that rely on fertilization results in up to 50% of fall fertilizer being lost to the environment. Solutions are needed to reduce nutrient pollution from Midwestern agriculture. Cover crops are a best management practice that shows potential to reduce nutrient loss from Illinois farms. However, due to economic concerns, cover crop usage in Illinois is low (6%). A novel winter oilseed, pennycress, has the potential to act both as a cover crop and a cash crop, benefitting …
Differences In Presenting Concerns Of Anxiety Amongst Students In College Counseling Centers Across The United States, Julia Brim
Theses and Dissertations
Anxiety is one of the most common mental health disorders in the U.S. and is becoming increasingly common and problematic for college students across the country. Building on research conducted at single universities, we used a large national data set from the Center for Collegiate Mental Health (CCMH) and compared self-reported levels of anxiety amongst various groups of college students across the U.S., as well as the prevalence of comorbidity between anxiety reported on the generalized anxiety subscale of the Counseling Center Assessment of Psychological Symptoms (CCAPS) and other mental health concerns. We found that a number of self-reported variables …
Toward More Culturally Sustaining Pedagogy In Elementary Social Studies, Laura Delgado
Toward More Culturally Sustaining Pedagogy In Elementary Social Studies, Laura Delgado
Theses and Dissertations
In the United States, elementary social studies instruction has significantly declined in recent decades, yet it holds valuable potential in allowing for spaces where the cultures and identities of our students can be centered and celebrated. Our educational systems are too often grounded in hegemonic ways of doing that are based around a dominant narrative that centers white, Christian, heteronormative values. Social studies instruction and its connected pedagogy have great potential to change that narrative. Following Mintrop’s cycle of inquiry model, this qualitative study looked at the experiences of elementary teachers as they undertook the implementation of a new social …
The Debt Within Arkansas: The Impact Of Debt In Reconstruction Era Arkansas, 1862-1868, Jerry Dale Griffin
The Debt Within Arkansas: The Impact Of Debt In Reconstruction Era Arkansas, 1862-1868, Jerry Dale Griffin
Theses and Dissertations
Debt was a reoccurring and prominent issue for the lives of Arkansans during the time of Reconstruction, 1862-1874. This thesis is set to help open up and add to the discourse specifically into the history and impact of debt for Arkansas during Reconstruction so as to give a clearer understanding of what the effects of Reconstruction were for Arkansas. The specific primary source data is from microfilm collections with varying amounts of information per county and per year and as such the counties with the most amount of data and consistent amount of years recorded were used. The locations of …
Racial/Ethnic Differences In The Effects Of Adverse Childhood Experiences On Suicidal Thoughts And Behaviors Among Youth, Lorres Wan Cheung Jensen
Racial/Ethnic Differences In The Effects Of Adverse Childhood Experiences On Suicidal Thoughts And Behaviors Among Youth, Lorres Wan Cheung Jensen
Theses and Dissertations
Previous studies have examined the effects of adverse childhood experiences (ACEs) on various health, well-being, and life outcomes, including suicidal thoughts and behaviors. However, considerably less studies have investigated whether the relationships between ACEs and suicidal thoughts and behaviors vary by race/ethnicity among adolescents. Therefore, this study's purpose is twofold: 1) Is there an association between ACEs and adolescent suicidal thoughts and behaviors? 2) If so, to what extent do these relationships vary across race/ethnicity? Utilizing the 2022 Florida Youth Substance Abuse Survey, methods of logistic regression modeling and categorical-categorical interactions were employed to answer these two questions. Results indicated …
Beyond Referrals: Examining Teacher Sentiment And Racial Disparities In Exclusionary Discipline, Sherrilyn Thomas
Beyond Referrals: Examining Teacher Sentiment And Racial Disparities In Exclusionary Discipline, Sherrilyn Thomas
Theses and Dissertations
Racial disparities are consistently present in the office discipline referral data for schools. Beginning in primary grades, African-American students are frequently punished more severely and more often than their peers who display similar behavior. Nationally, during the 2017-1018 school year, over two million K-12 public school students were suspended out of school one or more times and of these students, nearly one million were African-American students. These students were suspended at a rate that was four times more than their White peers; these suspension rates are even higher at the middle school and high school levels. This study provides an …
Deciphering How Uropathogenic Escherichia Coli Defends Itself Against The Neutrophilic Oxidant Hypochlorous Acid, Sadia Sultana
Deciphering How Uropathogenic Escherichia Coli Defends Itself Against The Neutrophilic Oxidant Hypochlorous Acid, Sadia Sultana
Theses and Dissertations
The objective of this dissertation was to investigate how uropathogenic Escherichia coli (UPEC) responds to and defends one of the most potent oxidants produced in neutrophils, hypochlorous acid (HOCl).While most bacteria have no negative effect on human health or are even beneficial, some pathogenic species can cause serious infections, resulting in increased morbidity and mortality. However, the immune system allows the host to efficiently fight back and eradicate pathogens. Innate immune cells (i.e., neutrophils) generate reactive oxygen and chlorine species (RO/CS) to kill invading pathogens, among which HOCl is considered the most potent and abundant one. HOCl exerts its bactericidal …
Understanding Student Perceptions Of A High School Wellness Center: An Interpretive Phenomenological Analysis Qualitative Study, Devan Audrey Clayton
Understanding Student Perceptions Of A High School Wellness Center: An Interpretive Phenomenological Analysis Qualitative Study, Devan Audrey Clayton
Theses and Dissertations
Adolescents face many challenges at home and at school which impact various areas of their lives, including their academics. Schools have worked to ensure better student mental health outcomes by hiring school counselors, school psychologists, and school social workers. School wellness centers can be an additional resource that students utilize to address mental health challenges during their school day. The purpose of this study is to understand adolescent perceptions of a school-based wellness center. Perceptions of populations who utilize the wellness center and those who do not utilize the wellness center were studied within one high school to understand how …
The Impact Of Applied Mental Health Classes On Eudaimonia, Gratitude, And Heart Rate Variability, Derek Charles Bartlett
The Impact Of Applied Mental Health Classes On Eudaimonia, Gratitude, And Heart Rate Variability, Derek Charles Bartlett
Theses and Dissertations
Rates of depression, anxiety, and stress have been increasing and college students are especially at risk. College counseling centers often have long waitlists and have difficulty addressing the growing need for psychotherapy. Researchers have suggested that depression and anxiety may arise because of low levels of eudaimonia and self-compassion. Depression and anxiety not only have a toll on mental health but on physical health as well, as researchers have observed decreased HRV in individuals with depression and anxiety. To address the disparity between available resources and treatment need, applied mental health classes were developed to see if teaching psychotherapeutic principles …
What Special Education Teachers Need To Remain: A Qualitative Study, Corey Michael Sharp
What Special Education Teachers Need To Remain: A Qualitative Study, Corey Michael Sharp
Theses and Dissertations
The persistent challenge of teacher attrition, particularly in special education positions, is examined within the context of the East Dillon School District in Dillon, IL. Despite efforts to recruit and retain special education teachers, vacancies remain unfilled, leading to a disruption to the educational experiences of students with disabilities and the practice of special education teachers lacking training and support. This phenomenological qualitative research study examined the experiences of six special education teachers at Lion Middle School. Using Job Embeddedness Theory, Ethics of Care, and Aptitude-Treatment Interaction Theory as the conceptual framework, this study sought to provide the training and …
A Poetics Of Entanglement: The Enmeshed Creation Of Interrogative Space, Phil Spotswood
A Poetics Of Entanglement: The Enmeshed Creation Of Interrogative Space, Phil Spotswood
Theses and Dissertations
This dissertation theorizes and deploys a poetics of entanglement as a creative practice for questioning relationality and its role in meaning-making. The dissertation includes a critical preface that explores a poetics of entanglement by analyzing poetry by gay cis male US poets whose work is thematically linked by their creative disruptions of the feeling of shame. The dissertation’s creative chapter is a collection of original poems titled It Bears Repeating; the poems deploy a poetics of entanglement to open questions in the shamed body. The dissertation concludes with considerations for how a poetics of entanglement might be taught to undergraduate …
Performance Of Humans And Agents In A Systems Modeling Language V2 Task: A User-Centered Evaluation Approach, Allen W. Dukes
Performance Of Humans And Agents In A Systems Modeling Language V2 Task: A User-Centered Evaluation Approach, Allen W. Dukes
Theses and Dissertations
The Department of Defense is adopting Digital Engineering practices for its workforce. Simultaneously, the larger Systems Engineering community strives to modernize and define those Digital Engineering practices. These efforts to move from traditionally document-based approaches to pure digital implementations will require enhanced capabilities to manage and digitally track the lifecycle of a program or product. However, this growth must address tool design through an iterative process focusing on usability for many user types. Many tools and technologies exist but often lack an assessment of usability when engineers design tools for other engineers. Including usability when developing solutions for Digital Engineering …
Small Unmanned Aircraft System Detection And Tracking With Audio, Computer Vision, And Deep Learning Techniques, Anthony C. Brunson
Small Unmanned Aircraft System Detection And Tracking With Audio, Computer Vision, And Deep Learning Techniques, Anthony C. Brunson
Theses and Dissertations
sUAS present significant risks to local and federal agencies when under the control of negligent, reckless, or criminal operators. In the face of an escalating presence of sUAS in shared airspace with traditional aircraft, and their deployment in protected airspace as potential weapons, safeguarding personnel, facilities, and assets becomes paramount. This research seeks to address this emerging threat by investigating the efficacy of integrating low-cost distributed sensors and Machine learning (ML) models to enhance battlespace awareness and complement existing sensing platforms for real-time sUAS detection, classification, and localization. The thesis introduces the conceptualization and development of a Drone Detection Command …
Computational Modeling Of Single Shear Bolted Joints In Hybrid Composite Laminates With And Without Film Adhesive, Cameron S. Mcmahan
Computational Modeling Of Single Shear Bolted Joints In Hybrid Composite Laminates With And Without Film Adhesive, Cameron S. Mcmahan
Theses and Dissertations
This research explores the effectiveness of predicting composite failure subject to quasi-static loading conditions using computational methods. FEA models were created using Abaqus and were employed to predict composite yield and initial failure behavior. Boundary conditions are generated to replicate the loading scenario seen in the experimental tests. Computationally predicted structural response of the composite range in accuracy from a 2% difference compared to experimental values to a maximum of 63%.
Investigation Of The Effect Of Internal Reynolds Number And Advective Capacity Ratio On Gas Turbine Film Cooling Parameters, John P. Di Lella
Investigation Of The Effect Of Internal Reynolds Number And Advective Capacity Ratio On Gas Turbine Film Cooling Parameters, John P. Di Lella
Theses and Dissertations
The desire for more powerful engines drives higher turbine inlet temperatures and a greater need to cool them. Experimentalists attempt to match cooling effectiveness between two conditions by matching several non-dimensional parameters, one of which is the coolant warming factor. The first investigation of this study examines the effect of the internal Reynolds number and the advective capacity ratio on the coolant warming factor by making use of a computational model and four different gases. It indicates the non-negligible and opposing effects of external convection and solid conduction on the coolant warming factor at matched internal Reynolds number and advective …
Forecasting Stock Prices Using Arima Models And Technical Analysis, Muath I. Almaiman
Forecasting Stock Prices Using Arima Models And Technical Analysis, Muath I. Almaiman
Theses and Dissertations
This thesis explores the integration of Autoregressive Integrated Moving Average (ARIMA) models and technical analysis to forecast stock prices, with a focus on Coca-Cola's (KO) and Netflix’s (NFLX) stocks. It examines the effectiveness of combining ARIMA models, known for their predictive accuracy in time-series analysis, with technical indicators, particularly moving averages. The study evaluates whether this integrated approach can enhance the predictive capability of stocks prices beyond traditional methods. The predictive capability is evaluated using error metrics from the ARIMA models, as well as by assessing the return earned using simple rules based on the technical indicators. Utilizing data spanning …
Rotorcraft Assisted Aircraft Inspection System: Creation And Component Assessment, Adam J. Warren
Rotorcraft Assisted Aircraft Inspection System: Creation And Component Assessment, Adam J. Warren
Theses and Dissertations
Aircraft require frequent inspections to perform their missions safely. Current visual inspection methods are time-consuming and dangerous for inspection personnel, but they are necessary to spot flaws that could endanger the aircraft during flight. This research explores a set of methods for transforming a set of target inspection criteria into camera specifications that will allow a UAS aircraft inspection system to perform inspections on the top skin of an aircraft. Given the minimum distance for the UAS to fly above the aircraft, minimum flaw size to search for on the aircraft, minimum number of pixels to display that flaw size, …
Exploratory Analysis Of Cislunar Disposal Options For Select L1 And L2 Orbit Families, Rene Velazquez
Exploratory Analysis Of Cislunar Disposal Options For Select L1 And L2 Orbit Families, Rene Velazquez
Theses and Dissertations
The purpose of this research is to characterize the disposal options available for the planar and out of plane orbit families near the Moon. These options are meant to provide the impending Space Race around the cislunar regime a method to mitigate debris in the future. The disposal options are built upon a Sphere of Influence (SOI) reachability concept from a Circular Restricted Three-Body Problem (CR3BP). The SOI reachability will be based on the maneuver applied on a closed orbit in the velocity direction of the rotating frame. The post-maneuver trajectories will be propagated for 180 days and transformed into …
Optimal Trajectory Solutions For Unmanned Pursuer/Evader Offensive Counterair Including Engagement Zone, Alexander Hansen
Optimal Trajectory Solutions For Unmanned Pursuer/Evader Offensive Counterair Including Engagement Zone, Alexander Hansen
Theses and Dissertations
This work considers a two-actor scenario of a faster, unmanned pursuer with an engagement zone (EZ) and a non-maneuvering mobile evader. The pursuer aims to capture an evader with a circular EZ. The EZ is dynamic and shifts as a function of the evader’s velocity vector. As the evader’s strategy changes, the EZ relative to the pursuer adjusts based on relative heading and speed of the two agents. Using nonlinear optimal control techniques, the optimal trajectory and minimum time to engage the evader are determined for various pursuer initial headings and positions through MATLAB simulation. The results build a control …
Preliminary Architecture Assessment Of Lunar Surface Sensors For Cislunar Ssa, Clint J. Spesard
Preliminary Architecture Assessment Of Lunar Surface Sensors For Cislunar Ssa, Clint J. Spesard
Theses and Dissertations
The exploration of the lunar and cislunar realm is becoming increasingly active as several entities, private and public, foreign and domestic, set their sights beyond traditional Earth-centered space operations. Along with this renewed activity is a growing need for comprehensive Space Situational Awareness (SSA) and Space Traffic Management (STM) in the inherently chaotic cislunar system. This thesis seeks to embolden the study of cislunar SSA by considering the lunar-surface as a platform from which to conduct optical SSA. In this thesis, a lunar-based SSA system is heuristically optimized via a genetic algorithm through three separate implementations. All surface locations considered …
End-User Device Management In The Air And Space Forces, Joshua Bonvissuto
End-User Device Management In The Air And Space Forces, Joshua Bonvissuto
Theses and Dissertations
When achieving technical superiority is a matter a national security, it is critical that the Department of the Air Force (DAF) employs a robust Information Technology Asset Management (ITAM) strategy that maximizes mission effectiveness. Since 2022, the Office of the Chief Information Officer (SAF/CN) has been developing a plan to transform the Air Force’s ITAM strategy, primarily intending to centralize End User Device (EUD) procurement to the DAF level. For this study, a Delphi study was conducted to gather expert opinions on key aspects of SAF/CN’s new ITAM strategy to identify strengths, weaknesses, and implementation challenges. This research provides valuable …
Utilization Of The System Engineering Design Process To Design And Test A Low-Cost Infectious Aerosol Control Mechanism For Patient Aeromedical Evacuation, Sara Shaghaghi
Theses and Dissertations
The aeromedical evacuation of military patients is a critical component of care for Armed Forces members. The Air Force’s ability to transport patients relies on the technology and systems available. A vital transport responsibility is keeping the patient and medical personnel safe during transport. The historical and legacy systems provide reliable transport mechanisms for the Armed Forces’ patients infected with high-level biological agents, but drawbacks must be considered. This dissertation will discuss the development, conceptual design, and initial evaluation of a new low-cost, litter-mounted patient transport system, Biological-Mitigation in Patient Transport (B-MIPT), using the “V” model of the system engineering …
Advanced Oxidation Of Methyl Tert Butyl Ether With Ultraviolet Light Emitting Diodes, Aaron R. Neal
Advanced Oxidation Of Methyl Tert Butyl Ether With Ultraviolet Light Emitting Diodes, Aaron R. Neal
Theses and Dissertations
Methyl Tert-Butyl Ether (MTBE) is a volatile, soluble, organic compound introduced to gasoline within the United States as a fuel oxygenator in 1979. MTBE is a common groundwater pollutant due to its high water solubility and resistance to bio-degradation; it commonly infiltrates groundwater sources via leaking underground storage tanks or fuel spills. This research employed ultraviolet light emitting diodes (UV-LEDs) and hydrogen peroxide (H2O2) induced advanced oxidation process (AOP) to treat MTBE contaminated water at the bench scale. Using four H2O2:MTBE molar peroxide ratios (100:1, 200:1, 400:1, 500:1), MTBE degradation was induced …
Origami Application And Attitude Control Investigation Of Space-Based Mirror System, David J. Garcia
Origami Application And Attitude Control Investigation Of Space-Based Mirror System, David J. Garcia
Theses and Dissertations
Imaging and inspecting Resident Space Objects (RSO) have gained increasing importance in Space Situational Awareness (SSA) missions. These missions are driven by the necessity to perform satellite repairs, refueling, de-orbiting, and orbital debris reduction. However, the challenging lighting conditions in space often hinder these tasks. To overcome this challenge, a novel concept has been proposed—deploying mirrors from servicer satellites. These mirrors would harness solar energy to illuminate dimly-lit RSOs, enabling imaging, inspection, repair, and refueling operations. In this context, servicer satellites play a pivotal role in controlling the reflected light beam and precisely positioning themselves to illuminate RSOs effectively. Notably, …
3- And 6-Degree-Of-Freedom Investigation Of Aerobraking To Support Cislunar And Planetary Operations, Erica C. Higginbotham
3- And 6-Degree-Of-Freedom Investigation Of Aerobraking To Support Cislunar And Planetary Operations, Erica C. Higginbotham
Theses and Dissertations
The first aerobraking experiment occurred in 1991 as part of the Hiten spacecraft’s cislunar survey mission, while the first non-Earth aerobraking experiment occurred in 1993 as part of the Magellan spacecraft’s mission to Venus. Although making only two trans-atmospheric passes to reduce its apogee altitude, the success of Hiten’s experiment led to the implementation of aerobraking by Magellan, reducing its orbit from elliptical to nearly circular over a span of 70 Earth days by leveraging aerodynamic drag to reduce its orbital energy via transiting the upper region of Venus’ atmosphere. The Magellan experiment helped prove the viability of aerobraking for …