Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 51 for “"National Aeronautics and Space Administration (NASA)"”.
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Design and Analysis of a Thermal Shield System for the Starprobe Spacecraft.
… (JPL) of the California Institute of Technology and Ames Research Center (ARC) of the National Aeronautics and Space Administration (NASA) of an unmanned spacecraft for close-range solar observation.
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A Case Study of NASA's Columbia Tragedy: An Organizational Learning and Sensemaking Approach to Organizational Crisis.
… agency receives as much attention as the National Aeronautics and Space Administration (NASA). The high-profile agency frequently captures attention of the media in both positive and negative contexts. This thesis takes a case study approach using organizational learning and sensemaking …
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Analysis of Aerosol Optical Depth for South Korea
… in the last decade. To this end, both the National Aeronautics and Space Administration (NASA) in the United States and the National Institute of Environmental Research (NIER) in South Korea have led field studies to investigate the air pollution of the country to find a way to mitigate air …
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Control-structure interaction mitigation for NASA's Gateway
The Gateway is an advanced National Aeronautics and Space Administration (NASA) concept for a multi-module space station to be placed in a near rectilinear halo orbit around the Moon sometime in the next decade. The first module of the Gateway is known as the Power and Propulsion Element (PPE), and …
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Application of Systems Engineering Principles and Methods to an Advanced Technology Research Project
… of modern systems engineering principles and methods to a joint sponsored research and development program. The Small Aircraft Transportation System program is a $100M class, 4 year proof-of-concept research and demonstration program jointly sponsored by the National Aeronautics and Space …
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The Steep Climb to Low Earth Orbit: A History of the Space Elevator Community's Battle Against the Rocket Paradigm
This thesis examines the growth of the space elevator community in America from 1975 to 2010. It argues that the continued practical failures of the space elevator, a proposed technology for efficiently transporting payloads and people into space without conventional propulsion sources, resulted …
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The SpaseCroissant Oven: Automatic Metadata Generation For Open-Source Space Weather Datasets
… A novel metadata schema released by OpenAI and MLCommons called Croissant, which is specifically designed for ML-ready datasets, aims to increase data accessibility, user understanding of data, and accuracy of claims based on data. However, current methods to automatically generate Croissant …
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System characterization and online mass property identification of the SPHERES formation flight testbed
The National Aeronautics and Space Administration (NASA) and other entities in the aerospace industry have recently been considering distributed architectures for many space applications, such as space-based interferometry. Whether the craft in such a system are structurally connected or flown in …
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The relationship between precipitation and electromagnetic signals in the Schumann resonances
Electromagnetic background and transient signals caused by global lightning activity are continuously recorded in the Schumann resonance band (3-120 Hz) from the MIT Schumann resonance site in West Greenwich, Rhode Island. These measurements are compared with precipitation estimates provided by the …
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Dynamic Electrothermal Model of a Sputtered Thermopile Thermal Radiation Detector for Earth Radiation Budget Applications
The Clouds and the Earth's Radiant Energy System (CERES) is a program sponsored by the National Aeronautics and Space Administration (NASA) aimed at evaluating the global energy balance. Current scanning radiometers used for CERES consist of thin-film thermistor bolometers viewing the Earth through …
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Dynamic simulation of solar calibration of the total, Earth- viewing channel of the Earth Radiation Budget Experiment (ERBE)
… instruments placed in Earth orbit by the National Aeronautics and Space Administration (NASA). Its purpose is to monitor those components of the Earth radiation budget which influence the weather and climate. The active cavity radiometer (ACR) instruments on board the ERBE satellites are …
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Head and Neck Injury Risk Predicted by Finite Element ATDs and Human Body Models in the Aerospace Landing Environment
The advent of commercial crewed spaceflight has increased the number of people expected to travel to space and back. Unlike motor vehicle crashes (MVCs), in which 2.3 crashes are expected for every million vehicle miles traveled in the US, spaceflight occupants are guaranteed to experience dynamic …
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Optical analysis of the ERBE scanning thermistor bolometer radiometer using the Monte Carlo method
… Budget Experiment (ERBE) was started by the National Aeronautics and Space Administration (NASA) to provide data to the meteorological community to predict long-term weather and climate trends. Three satellites employing nonscanning active cavity and scanning thermistor bolometer radiometers …
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Protest Space: A Study of Technology Choice, Perception of Risk, and Space Exploration
The National Aeronautics and Space Administration (NASA) plans to create a program for the human exploration of Mars that will rely heavily on nuclear technologies. NASA has an established nuclear technology program that recently became the focus of public protest over the risk from the …
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The overview effect and counselling psychology: astronaut experiences of earth gazing
A significant number of space travellers have reported seeing Earth from orbit or the moon as an awe-inducing experience that is deeply impactful. To date existent research has provided convincing evidence that nature is therapeutic but there is limited research exploring the impact of …
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Overcoming electro-thermal barriers to achieve extreme performance power conversion for more electric aircraft
The National Aeronautics and Space Administration (NASA), in addition to an increasing number of privately funded ventures, has demonstrated growing interest in more electric aircraft (MEA) - flight vehicles where propulsion is partially or totally supplied by electric motors. While hybrid or …
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The Effect of Icing on the Dispatch Reliability of Small Aircraft
In 2000, the National Aeronautics and Space Administration (NASA) initiated a program to promote the use of small aircraft as an additional option for national public transportation. The Small Aircraft Transportation System (SATS) asserted the idea of everyday individuals piloting themselves on …
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Kinematic Design and Analysis of a Morphing Wing
… An airplane rarely has one specific mission, and therefore is usually designed as a compromise to meet many flight objectives with a single wing surface. Large-scale shape change of a wing would enable a wing design to be optimized for multiple missions. Engineers at the National Aeronautics …
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Regional Transport Aircraft Design using Turbo Electric Distributed Propulsion (TEDiP) System
… for significantly increased energy efficiency and reduced harmful emissions into the atmosphere as codified by National Aeronautics and Space Administration (NASA) and Advisory Council for Aircraft Innovation and Research in Europe (ACARE). The airline industry supports these goals because of …
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A systems-based analysis method for safety design in rocket testing controllers
Boeing is the prime contractor for building the National Aeronautics and Space Administration (NASA) Space Launch System (SLS) core stage for upcoming exploration missions beyond low earth orbit. Due to the rigorous demands of safety on crew-rated spacecraft, the entire vehicle undergoes captive …
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