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 112 for “"space science"”.
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User interfaces in space science instrumentation
… with instrumentation in the specific context of space science. It gathers together existing practice in machine interfaces with a look at potential future usage and recommends a new approach to space science projects with the intention of maximising their science return. It first takes a …
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Transition Edge Sensors for Far-Infrared Space Science
… for the next generation of far-infrared space observatories. Future missions will seek to achieve unprecedented background-limited sensitivities by combining large (>1 m) cold (<4 K) aperture telescopes with many thousands of detectors having Noise Equivalent Power (NEP) of only 10^{-19} …
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TEACHER PERCEPTIONS OF FACTORS THAT AFFECT TEACHING SPACE SCIENCE IN TEXAS
… the characteristics of teachers teaching space science associated subjects in Texas public schools, identify their perceived ability to teach these subjects, and to identify any impediments or enhancements to their ability to teach the subjects. The study was conducted through a mixed …
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The value proposition of distributed satellite systems for space science missions
The resources available for planetary science missions are finite and subject to some uncertainty. Despite decreasing costs of spacecraft components and launch services, the cost of space science missions is increasing, causing some missions to be canceled or delayed, and fewer science groups have …
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Development Of A Knowledge Management Model In Large-scale International Space Science Projects
Large-scale international science projects (LISPs) are those projects where two or more countries formally agree to cooperate toward the achievement of a scientific, research and development, or engineering goal. In general, only projects exceeding $1 billion U.S. are considered LISPs, so sheer …
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Space Art + Space Science a polymathic paradigm shift in the art/science dialogue
… has been more influenced by the arts than space exploration. The artistic visions of yesteryear are the technological realities of today. These realities in turn create new possibilities for artistic expression. However, Space Art and Space Science have shared a convoluted history. Their …
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A new systemic model for the implementation of sustainable space science and technology investment for Sub-Saharan African economies: an implementation process derived from a case study of MeerKAT and the Square Kilometre Array projects
… model for African developing nations undertaking space science and technology (SST) programmes, using the MeerKAT project and the forthcoming Square Kilometre Array (SKA) as central case studies. Econometric analysis of Sub Saharan African (SSA) economies reveals that standard economic inputs …
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SuperDARN Data Simulation, Processing, Access, and Use in Analysis of Mid-latitude Convection
… Network (SuperDARN) data is a powerful tool for space science research. Traditionally this data has been processed using a routine with known limitations. A large issue preventing the development and implementation of new processing algorithms was the lack of a realistic test dataset. We have …
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Interactive visualization framework for space plasma data sets
… to graphs is imperative to our understanding of space physics. However, traditional visualization tools used in the space science community are either proprietary, lack portability or require paid license subscriptions. Therefore we are attempting to resolve these shortcomings by developing …
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Enabling Validation of a CubeSat Compatible Wind Sensor
… Detector (REDD) is a new CubeSat-compatible space science instrument that measures neutral wind characteristics in the upper atmosphere. Neutral gas interactions with plasma in the ionosphere/thermosphere are responsible for spacecraft drag, radio frequency disturbances such as scintillation, …
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Characterisation of CMOS APS Technologies for Space Applications
… a high frame rate spectroscopic X-ray imager for space science. The implications of these results for using similar devices in space applications are considered. Furthermore, possible novel techniques for measuring inter-pixel responsivity non-uniformity, heavy ion detection and spectroscopy, and …
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Transcending Space and Time: The emerging urban morphosis around spaceports
… possible development of a new urban form around space launching sites. A city form that is built with the influence of job opportunities offered at the spaceport and its surrounding local conditions-a futuristic company town. The design approach is derived from a multitude of learnings from the …
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Decision tree application to satellite measurement and analysis of exospheric neutral densities
… are generally two types of models to simulate space science parameters: physics-based models and statistics-based models. The first type of model makes predictions based on physical assumptions and mathematical expressions. The second type does so based on past data, applying linear regression …
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An Investigation of General Criteria for Assessing Space Flight Systems of Diverse Mission Concept Designs
… implementation risk factors of proposed space science missions at the mission concept stage. According to the National Aeronautics and Space Administration (NASA) Space Flight Program and Project Management Handbook (NASA, 2012), the mission concept review objectives are “To evaluate the …
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Design and characterization of a strong positron source at the MSTR beam port
… physics, nuclear physics, biology, surface science, exotic atom research and space science. The purpose of this work is to design and optimize a reactor-based positron source at the Missouri University of Science and Technology Reactor (MSTR) beam port and quantify its intensity. Monte Carlo …
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Design of control electronics for the Ram Energy Distribution Detector
… radio communications. A ram wind sensor is a space science instrument that, when mounted on a satellite in low-Earth orbit, makes in-situ measurements of the component of the neutral gas velocity that lies along the orbit track of the satellite. The instrument works by changing the voltage on …
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Advancements in the Design and Development of CubeSat Attitude Determination and Control Testing at the Virginia Tech Space Systems Simulation Laboratory
… are commonly used to test and validate spacecraft attitude control systems before flight. However, these systems are generally too large to successfully test the attitude control systems on-board CubeSat-class satellites. Due to their low cost and rapid development time, CubeSats have …
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The Divine Pedagogy: Theological Explorations of Intelligent Extraterrestrial Life
… antiquity until the modern age. Advancements in space science of the twentieth and twenty-first centuries have revealed a vast universe containing trillions of galaxies, as well as new discoveries of exoplanets, which has provided an unprecedented greater context and perspective in consideration …
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Design, Development, and Calibration of an Electric Field Probe for Use on Sounding Rockets
… Interactions of high-energy particles from space with atmospheric plasma and the Earth’s natural magnetic field create many interesting interactions, many of which have direct impacts on the planet and human life. Understanding the dynamics of the upper atmosphere is a compelling endeavor, …
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A study of postgraduate students in an Astrophysics bridging year: identifying contradictions in a complex system
… and Masters level, the National Astrophysics and Space Science Programme (NASSP) was established by an interested of group universities and located at the University of Cape Town. Despite initial success the programme failed to recruit and retain black South African students. In order to address …
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