Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Law (1073)
- Medicine and Health Sciences (1061)
- Rehabilitation and Therapy (760)
- Social and Behavioral Sciences (567)
- Physical Therapy (482)
-
- Occupational Therapy (276)
- Arts and Humanities (232)
- Physical Sciences and Mathematics (196)
- Education (176)
- Psychology (166)
- History (163)
- Linguistics (157)
- Communication (133)
- Earth Sciences (131)
- Nursing (130)
- Geology (127)
- Higher Education (98)
- Engineering (83)
- Scholarship of Teaching and Learning (82)
- United States History (61)
- Political Science (51)
- American Politics (48)
- Business (46)
- Indigenous Studies (46)
- Indigenous, Indian, and Aboriginal Law (46)
- Native American Studies (46)
- Race, Ethnicity and Post-Colonial Studies (46)
- Law and Politics (45)
- Military History (42)
- Life Sciences (37)
- Keyword
-
- University Senate (324)
- North Dakota (311)
- Alumni (232)
- Magazine (232)
- Review (230)
-
- United States (212)
- University of North Dakota (167)
- Dakota Student (122)
- Student (121)
- Faculty (111)
- Newspaper (108)
- Education (88)
- Second World War (74)
- Politics (68)
- Mandan (66)
- Hidatsa (65)
- Case Reports (64)
- Nueta (64)
- The Three Affiliated Tribes of the Fort Berthold Reservation (63)
- Mandan Hidatsa and Arikara Nation (62)
- Arikara (60)
- Sahnish (59)
- 164th Infantry Regiment (57)
- History (53)
- Etc (50)
- Minnesota (50)
- Governors (43)
- College teachers (40)
- College students (37)
- Garrison Dam (37)
- Publication Year
- Publication
-
- Theses and Dissertations (6067)
- North Dakota Law Review (1188)
- Undergraduate Theses and Senior Projects (510)
- Physical Therapy Scholarly Projects (490)
- University Senate Meeting Minutes (325)
-
- The Dakota Student (322)
- University Letter Archive (273)
- Occupational Therapy Capstones (267)
- ALL: UND Alumni Review Master List (232)
- Nursing Capstones (127)
- W. P. Davies' Newspaper Column ('That Reminds Me') (126)
- Work Papers of the Summer Institute of Linguistics, University of North Dakota Session (101)
- Nuremberg Transcripts (97)
- North Dakota Politics - Publications (89)
- Physician Assistant Scholarly Project Papers (82)
- 164th Infantry Regiment Publications (57)
- Teaching and Learning: The Journal of Natural Inquiry & Reflective Practice (56)
- North Dakota Medicine Archive (55)
- Education, Health & Behavior Studies Faculty Publications (49)
- US Government Documents Related to Indigenous Nations (45)
- Physician Assistant Scholarly Project Posters (35)
- Settler Literature Archive (33)
- Usher Burdick Papers (29)
- AI Assignment Library (27)
- Biology Faculty Publications (27)
- UND Athletics Publications: Football (27)
- UND Departmental Histories (27)
- Journal of Teaching and Learning (26)
- UND Publications (26)
- Floodwall Magazine (24)
- Publication Type
- File Type
Articles 2341 - 2370 of 11368
Full-Text Articles in Entire DC Network
Successful Reorganization Of Rural North Dakota Schools With Declining Enrollment, Steven Lewis Johnson
Successful Reorganization Of Rural North Dakota Schools With Declining Enrollment, Steven Lewis Johnson
Theses and Dissertations
The purpose of this study was to identify perceptions of North Dakota leaders who had been involved in successfully reorganized school districts resulting from declining enrollments and reduced resources. All reorganized districts in this study were affected by serious declining enrollments in their respective rural communities. These successfully reorganized school districts developed reorganization plans and positive cultures within their communities that resulted in each plan being passed by a voting citizenship. The school districts studied laid the groundwork for reorganization with neighboring districts by forming cooperative agreements in athletics, shared staff, and shared special education services.
The researcher sought answers …
Generating A Characterization Method Utilizing The Visible (0.6-1.0 Μm) Peak Feature To Aid In Identification Of Ordinary Chondrite Parent Bodies, Cassandra Lynne Johnson
Generating A Characterization Method Utilizing The Visible (0.6-1.0 Μm) Peak Feature To Aid In Identification Of Ordinary Chondrite Parent Bodies, Cassandra Lynne Johnson
Theses and Dissertations
Surveys in the visible to near infrared (VNIR) of main belt asteroids which cut off at the 1 micron wavelength prevent adequate characterization for approximately 2500 asteroids. This project aims at surveying spectral data from RELAB and Gaffey's meteorite datasets utilizing the peak feature located between charge transfer and Band I of 224 ordinary chondrite (OC) samples to analyze the peak position shifts with respect to subtypes H-, L- and LL- to generate a new characterization method. This method may make it possible to unite the datasets between the meteorites and asteroids to further constrain and characterize the OC parent …
Measuring The Effect Of Weighted Devices On Exercise Enjoyment, Nicholas Kruse
Measuring The Effect Of Weighted Devices On Exercise Enjoyment, Nicholas Kruse
Theses and Dissertations
Physical activity provides an important health benefit for both males and females. Seven out of every ten U.S. deaths are from chronic disease and many of those deaths could have been preventable. With a lack of physical activity and poor diet, chronic illnesses such as obesity, cancer, cardiovascular disease, and type II diabetes were reported, (CDC, 2004). There is a steep decline in exercise from high school to college, which indicates that exercise adherence in college students is an issue. In this study, three conditions were examined with students at the University of North Dakota going through a plyometric protocol …
Correctional Education Programs: Institutional Predictors Of Availability, Shamilya Marielle Mitchell
Correctional Education Programs: Institutional Predictors Of Availability, Shamilya Marielle Mitchell
Theses and Dissertations
Being a convicted felon can limit a person's life chances. Adding a lack of education and training to that felony conviction can further limit the ability to find stable employment and transition back into society. Correctional education programs can reduce recidivism rates, but there are a wide variety of programs and not every facility offers them. This study examines the institutional characteristics that predict the availability of vocational training and college course programs in correctional institutions. The data for this study come from the 2000 Census of State and Federal Adult Correctional Facilities. Data were collected from 84 federal correctional …
Linking Local Weather To Climate Change: One Year Of Twitter In The Us, Tatiana Molodtsova
Linking Local Weather To Climate Change: One Year Of Twitter In The Us, Tatiana Molodtsova
Theses and Dissertations
There is a high level of scientific consensus on climate change. Nevertheless for climate change research to have any practical value, to develop public support for climate policies, the climate research results must find the way to general public. That is why it is important to understand how the public perception of climate change forms.
During the last decades there have been a number of studies on the factors affecting the level of public concern on climate change. Two major groups of factors are hypothesized to have the biggest influence on the level of public concern on climate change: extreme …
Neighborhood Perceptions In The Near South Side Neighborhood Of Grand Forks, Nd, Mikel Elizabeth Smith
Neighborhood Perceptions In The Near South Side Neighborhood Of Grand Forks, Nd, Mikel Elizabeth Smith
Theses and Dissertations
Older neighborhoods across the country are at risk of collapse. In response, city governments are taking a renewed interest in their older inner-city districts. Urban Neighborhood Initiatives (UNI) is one way local governments are renewing and revitalizing these neighborhoods. This is happening in Grand Forks, ND. Consequently, this study's focus is on the perceptions of residents in the Near South Side neighborhood (NSS).
Data was collected through a questionnaire survey. A total of 203 replies were received from the pool of 740 surveys distributed in the Mayors Urban Neighborhood Initiative and the attached historic district. The four research questions focused …
Reading Comprehension Assessment: A Comparison Of Academic And Clinical Measures, Emily Ann Stephens
Reading Comprehension Assessment: A Comparison Of Academic And Clinical Measures, Emily Ann Stephens
Theses and Dissertations
The Measures of Academic Progress (MAP) test is a computer-based academic assessment of reading comprehension that is used by school districts nationwide. The MAP has established reliability, but its validity is not widely available. The purpose of this study was to seek validity for the MAP by comparing it to the Gray Oral Reading Test--5th edition (GORT-5), a frequently used and valid clinical test of reading comprehension. Participants included twenty-eight fourth grade students ranging from 9;7 to 10;8 years of age, with a mean of 10;2. Each participant completed the GORT-5 and MAP test. The GORT-5 and MAP each yield …
Mapping Techniques For Soil Erosion: Modeling Stream Power Index In Eastern North Dakota, Rick Thalacker
Mapping Techniques For Soil Erosion: Modeling Stream Power Index In Eastern North Dakota, Rick Thalacker
Theses and Dissertations
Soil erosion is a worldwide problem that can negatively affect surface water through the introduction of sediment, nutrients (eg. nitrogen, phosphorus), pesticides, and other chemicals. Soil erosion is often exacerbated by agricultural and other types of land use. The objective of this study was to identify gully locations in agricultural fields adjacent to the Turtle and Forest rivers in eastern North Dakota that accumulate surface flow resulting in areas of critical surface erosion in a GIS using the Stream Power Index (SPI). A field survey was conducted to verify the accuracy of the terrain analysis at identifying 391 gully and …
Determinants Of Gold Returns: An Austrian Perspective, Justin Nicholas Theriot
Determinants Of Gold Returns: An Austrian Perspective, Justin Nicholas Theriot
Theses and Dissertations
In this article, I offer a comprehensive analysis on the factors that influence the gold market in relation to returns to demonstrate that gold moves as a currency. I employed a wide range of macroeconomic and commodity variables to investigate the underlying movements in the gold market. The methodology followed four simple steps; 1) correlation tests, 2) vector autoregression model of two lags, 3) auto-regressive integrated moving average model and 4) generalized autoregressive conditional heoteroskedasticity. This methodology enabled me to
convey that gold moves more as a currency and not as an investment. The main findings of this paper provided …
Application And Prospect Of Orthogonal On-Off Keying As An Error Control Coding In Laser Communication, Tasbirun Nahian Upal
Application And Prospect Of Orthogonal On-Off Keying As An Error Control Coding In Laser Communication, Tasbirun Nahian Upal
Theses and Dissertations
In this thesis work, a bandwidth efficient coded modulation technique has been proposed for LASER based communication. It offers reliable error correction and bandwidth optimization for free space connectivity. Laser communication has been emerging as a potential alternative of Radio Frequency (RF) communication for long-haul connectivity. It provides several advantages over RF systems. Some of specific advantages are its high speed data transfer, higher bandwidth, robust security, immunity to electromagnetic interference, lower implementation cost. However, as any other communication system, it requires an error control system that detects and corrects error in the data transmission. The proposed technique blends well …
The Structures, Mass Motions And Footpoints Of Solar Filaments, Aparna Venkataramanasastry
The Structures, Mass Motions And Footpoints Of Solar Filaments, Aparna Venkataramanasastry
Theses and Dissertations
This thesis focuses on identifying the mechanism by which solar filaments acquire mass. Some of the speculations for how a filament gets its mass are 1) injection of mass from the chromosphere into the filament structure, and 2) condensation of mass from the corona into the region of the filament channel. Mass motion at the footpoints of the filaments is studied to detect mass entering and leaving the filament body. The magnetic properties of the footpoints of the filaments are also studied. Recommendations are drawn by comparing observational properties obtained in this study with the features used in some of …
Study Of The Suit Inflation Effect On Crew Safety During Landing Using A Full-Pressure Iva Suit For New-Generation Reentry Space Vehicles, Suzuki Wataru
Theses and Dissertations
Recently, manned space capsules have been recognized as beneficial and reasonable human space vehicles again. The Dragon capsule already achieved several significant successes. The Orion capsule is going to be sent to a high-apogee orbit without crews for experimental purposes in September 2014. For such human-rated space capsules, the study of acceleration impacts against the human body during splashdown is essential to ensure the safety of crews. Moreover, it is also known that wearing a full pressure rescue suit significantly increases safety of a crew, compared to wearing a partial pressure suit. This is mainly because it enables the use …
Agricultural Drought Monitoring And Prediction Using Soil Moisture Deficit Index, Jiexia Wu
Agricultural Drought Monitoring And Prediction Using Soil Moisture Deficit Index, Jiexia Wu
Theses and Dissertations
The purposes of this study are: 1) to evaluate the performance of an agricultural drought index, Soil Moisture Deficit Index (SMDI) at continental scale; 2) to develop an agricultural drought prediction method based on precipitation, evapotranspiration and terrestrial water storage.
This study applied multiple linear regression (MLR) with the inputs of precipitation from Parameter-elevation Regressions on Independent Slopes Model (PRISM), evapotranspiration from Moderate Resolution Imaging Spectroradiometer (MODIS) MOD 16 and terrestrial water storage (TWS) derived from the Gravity Recovery and Climate Experiment (GRACE) to predict soil moisture and SMDI. The inputs of the MLR model were chosen based on the …
Panic Development Mechanisms And Preventive Methods Analysis, Inga Wuerges
Panic Development Mechanisms And Preventive Methods Analysis, Inga Wuerges
Theses and Dissertations
Panic Development (PD) is one of the most important areas of Human Factors research due to its debilitating effects during high stress operating conditions in extreme environments. High levels of anxiety and panic evoke incidents that are a real threat to mission success and may result in fatalities. A delicate balance of crew selection, training, and systems' design is critical for mission success and human survival.
This research investigates possible panic development profiles and methods for preventing panic through realistic training. This research focuses on realistic training scenarios during the intense military flying exercise Red-Flag Alaska at Eielson AFB, AK. …
Increasing Target Language Usage In Level Ii Spanish Language Classes, Kathleen Anne Bolstad
Increasing Target Language Usage In Level Ii Spanish Language Classes, Kathleen Anne Bolstad
Theses and Dissertations
In the process of learning a new language students often feel uncomfortable using their language skills in an original and spontaneous manner. In a class that is not conducted solely in the Target Language (TL), it can be difficult to motivate and encourage students to use more of the TL. In this study I explored the use of code-switching as a strategy to encourage my Level II Spanish language students to use more language without fear of making a mistake or forgetting vocabulary. I also administered a survey to students to discover what they felt would be helpful in creating …
Statistical Analysis Of The Effectiveness Of The 'You're Hired!' Program At Changing Students' Attitudes Towards Engineering, Kristin Michelle Brevik
Statistical Analysis Of The Effectiveness Of The 'You're Hired!' Program At Changing Students' Attitudes Towards Engineering, Kristin Michelle Brevik
Theses and Dissertations
With the growing need for qualified employees in STEM-based careers, it is critical to develop activities for middle and high school students to increase their awareness of opportunities in these areas. With proper design, increasing awareness of STEM-based careers in conjunction with overcoming current stereotypes can lead to a change in attitudes towards these various careers. As part of this research project I have developed `You're Hired!', a program providing middle and high school students a hands-on, authentic experience in various engineering roles while assessing the change in a student's attitude towards the engineering profession. Project design also incorporates an …
Minnesota Paraeducators' Perceptions Of The Barriers To Becoming Licensed Special Education Teachers, Joni Burris
Minnesota Paraeducators' Perceptions Of The Barriers To Becoming Licensed Special Education Teachers, Joni Burris
Theses and Dissertations
Public schools across the country are facing a critical shortage of licensed special education teachers. For many reasons, paraeducators have been considered strong teacher candidates and have been recruited into the teaching profession intermittently for decades. Paraeducators who decide to obtain their teaching license often experience obstacles to this endeavor: money, time, family obligations, navigating the university system, and academics.
This research study examined and analyzed Minnesota paraeducators' perceptions of the barriers to obtaining their special education teaching license. It also assessed the perceptional differences between Minnesota paraeducators who have completed at least a bachelor's degree and those who have …
Translation Of Aadl To Pnml To Ensure The Utilization Of Petri Nets, Amrita Chatterjee
Translation Of Aadl To Pnml To Ensure The Utilization Of Petri Nets, Amrita Chatterjee
Theses and Dissertations
Architecture Analysis and Design Language (AADL), which is used to design and analyze software and hardware architectures of embedded and real-time systems, has proven to be a very efficient way of expressing the non-functional properties of safety-critical systems and architectural modeling. Petri nets are the graphical and mathematical modeling tools used to describe and study information processing systems characterized as concurrent and distributed. As AADL lacks the formal semantics needed to show the functional properties of such systems, the objective of this research was to extend AADL to enable other Petri nets to be incorporated into Petri Net Markup Language …
Investigating The Effects Of Ocean Bubbles On Enhanced Aqua-Modis Aerosol Optical Depth Retrievals In The Mid-To-High Latitude Southern Oceans, Matt Christensen
Investigating The Effects Of Ocean Bubbles On Enhanced Aqua-Modis Aerosol Optical Depth Retrievals In The Mid-To-High Latitude Southern Oceans, Matt Christensen
Theses and Dissertations
While satellite remote sensing aerosol measurements are widely used for climate, visibility and air quality studies, issues exist in the current satellite aerosol products such as the Elevated Southern Oceans Anomaly (ESOA) phenomenon. The ESOA is an elevated aerosol optical depth (AOD) belt over high latitude southern oceans detected by passive satellites such as the Moderate Resolution Imaging Spectroradiometer (MODIS) and Multi-angle Imaging SpectroRadiometer (MISR). The ESOA feature, however, is not present in the ground based studies. Cloud contamination was found to have a significant impact on this anomaly, but it is not the only contributor. Wind generated ocean bubbles …
Common Core State Standards: Beware The Trojan Horse, Yee Han Chu
Common Core State Standards: Beware The Trojan Horse, Yee Han Chu
Theses and Dissertations
The Common Core State Standards (CCSS) represent a promise by general education that all students can be college and career ready through the acquisition of essential knowledge, skills, and abilities. These essential elements will be rigorous, supporting the higher-order and independent thinking skills typically associated with the achievement of excellence. CCSS, in short, promises excellence in all students. The needs of those students who demonstrate high ability do not receive any separate mention: (1) how has the concept of excellence been incorporated into the CCSS; and (2) what is the potential impact on high ability students?
These questions are examined …
Investigating The Heterogeneous Chemistry Of Polycyclic Aromatic Hydrocarbons And Other Organic Species In Atmospheric Aerosols, Richard Cochran
Investigating The Heterogeneous Chemistry Of Polycyclic Aromatic Hydrocarbons And Other Organic Species In Atmospheric Aerosols, Richard Cochran
Theses and Dissertations
Organic aerosols (OA; organic compounds present on the surface or within aerosols) in the atmosphere may play a significant role in various atmospheric processes as well as have an impact on human health. While many primary (direct) sources of OA (POA) are known, a significant portion of OA is formed through the oxidation of primary precursors, creating secondary organic aerosols (SOA) through processes that are still unclear. This dissertation, therefore, focuses on the development of analytical methods for characterizing SOA as well as investigating the mechanism behind their formation and aerosol chemistry.
In the first phase of this work, methods …
Mental Illness Stigma, Mental Health Literacy, And Psychological Help-Seeking In A Rural Population, Astrid Shanthi D'Cunha
Mental Illness Stigma, Mental Health Literacy, And Psychological Help-Seeking In A Rural Population, Astrid Shanthi D'Cunha
Theses and Dissertations
This study assessed relationships between mental illness stigma (public stigma (Vogel, Wade & Ascheman, 2009) and private stigma (Vogel, Wade & Haake, 2006)), mental health literacy (Mental Health Literacy Survey (MHLS; Epps et al. 2007) and Symptom Recognition Scale, (SRS)), and psychological help-seeking (Attitudes towards Seeking Professional Psychological Help Scale and Intentions via LSHS) in a rural population. Two-hundred three adults living in rural and urbanized counties within a rural Midwestern state completed paper and online surveys. Stepwise hierarchical regression analyses showed that private stigma, mental health literacy, and previous help-seeking behavior predicted attitudes towards seeking professional help while symptom …
Effects Of Video Game Playing And Training On Unmanned Aerial Vehicle Performance, Kathryn Feltman
Effects Of Video Game Playing And Training On Unmanned Aerial Vehicle Performance, Kathryn Feltman
Theses and Dissertations
The popularity of unmanned aerial vehicles (UAVs) has resulted in the need to determine who is suitable to learn to operate UAVs. The present study examined the likelihood that action video game players (VGPs) would make better potential candidates for learning to become UAV pilots. Additional training is also examined as a factor to determine how well training assists with maintaining situational awareness and vigilance during performance of the task, which are beneficial skills for UAV pilots to possess. Ninety-two undergraduate students participated in the study, and piloting skills were tested using the Multi-Attribute Task Battery-II, which consists of generalizations …
Evaluation Of Cmip5 Simulated Clouds And Toa Radiation Budgets Using Nasa Satellite Observations, Erica Kay Dolinar
Evaluation Of Cmip5 Simulated Clouds And Toa Radiation Budgets Using Nasa Satellite Observations, Erica Kay Dolinar
Theses and Dissertations
A large degree of uncertainty in global climate models (GCMs) can be attributed to the representation of clouds and how they interact with incoming solar and outgoing longwave (Earth emitted) radiation. In this study, the simulated total cloud fraction (CF), cloud water path (CWP), top-of-atmosphere (TOA) radiation budgets and cloud radiative forcings (CRFs) from 28 CMIP5 AMIP models are evaluated and compared to multiple satellite observations from CERES, MODIS, ISCCP, CloudSat, and CALIPSO. The multimodel ensemble mean CF (58.6 %) is, on global average, under estimated by nearly 7 % compared to CERES-MODIS (CM) and ISCCP results, with an even …
An Analysis Of Abortion Demand In Pennsylvania 2000 - 2010, Guido Giuntini
An Analysis Of Abortion Demand In Pennsylvania 2000 - 2010, Guido Giuntini
Theses and Dissertations
In this paper I expand on previous research of the determinants of abortion demand to examine the demand for abortion in the specific case of Pennsylvania, where precise statistics are available for each county. The data considered is for the years 2000 and 2010, and allows for cross sectional and panel data analysis, specifically, first-difference permitting to look at the effect of changes over time of specific explanatory variables. Careful attention is placed on variable selection techniques to avoid the use of low significance variables. The analysis allows controlling for price, as it is considered to be constant across the …
The Effect Of Self-Explanation And Strategy Training On L2 Reading Comprehension Using An Intelligent Tutoring System, Hongxia Fu
Theses and Dissertations
While research suggests that secondary language (L2) learners at postsecondary institutions face academic reading challenges, and that reading strategy training can improve primary language (L1) learners' reading comprehension, it remains a challenge to find scalable ways to deliver such training to L2 learners. Intelligent tutoring systems (ITS) have been shown to be nearly as effective as human tutors while reaching potentially unlimited numbers of learners in a variety of subjects, including reading comprehension. However, few studies have explored the effectiveness of such systems for improving L2 learners' reading comprehension. Self-Explanation Reading Training (SERT) is an instructional model that combines self-explanation …
Satellite Derived Volumetric Soil Moisture In A Hec-Hms Model, Damon Grabow
Satellite Derived Volumetric Soil Moisture In A Hec-Hms Model, Damon Grabow
Theses and Dissertations
This research is intended to enhance recent hydrologic research that focused on a rainfall-runoff model of the Devils Lake basin in central North Dakota. This research employs the spatial volumetric soil moisture data collected by the National Aeronautics and Space Administration (NASA) Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument. The AMSR-E data, collected from 2002-2011 from the NASA EOS Aqua satellite, was used in the Land Parameter Retrieval Model (LPRM) to estimate the surface soil moisture at a scale of 25-km. AMSR-E data is used in collaboration with the current rainfall-runoff model to better understand the influences …
Multiple Baseline Study Of The Effects Of Left Visual Field Stimulation During Emotion Recognition Training Among Four Male Children With Autism Spectrum Disorders, Rachelle Hansen
Theses and Dissertations
Autism Spectrum Disorders (ASD) are characterized by social deficits in emotional comprehension. Research has demonstrated that for the neurotypical population, recognizing, and reacting to facial emotions improve when using the left visual field by employing the right brain hemisphere's configural processes. Behavioral, physiological, and neuroimaging findings suggest an opposite pattern within the autistic population - left hemisphere activation contributing to a right visual field preference for analyzing and assessing facial affect. The present study attempted to activate and strengthen the right hemispheric neural pathway responsible for emotion recognition using modified eyewear to contrive left visual field stimulation during an empirically …
Channel Estimation And Correction Methods For Ofdma Based Lte Downlink System, Zahirul Islam
Channel Estimation And Correction Methods For Ofdma Based Lte Downlink System, Zahirul Islam
Theses and Dissertations
In present era, cellular communication plays a vital role for communicating over long distance. The number of mobile subscribers is increasing tremendously day by day. 3GPP LTE is the evolution of the UMTS in response to ever-increasing demands for high quality multimedia services according to users' expectations. The average data consumption exceeds hundreds of Megabytes per subscriber per month. To introduce, summarize and get acquainted with this new technology LTE is one of the main objectives of my thesis.
The Downlink is always considered an important factor in terms of coverage and capacity aspects in between Downlink and Uplink factors …
Autonomous Spacecraft Control During Close-Proximity Near-Earth Object Operations, Joshua Thomas Johnson
Autonomous Spacecraft Control During Close-Proximity Near-Earth Object Operations, Joshua Thomas Johnson
Theses and Dissertations
A control scheme is proposed for a satellite orbit controller around a small, irregularly shaped near-Earth object (NEO) combining classical control theory and orbital mechanics into a continuous hybrid control system that achieves and maintains a circular orbit in a perturbed environment. NEOs are asteroids and comets that approach Earth's orbit around the Sun. They are currently being studied for resource allocation and threat mitigation, while providing unique opportunities for control systems. The NEO environment consists of a weak and complex gravity field, as well as other perturbations such as solar radiation pressure (SRP) and third-body gravitational disturbances. This project …