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Temperature Trends And Episodic Changes Of The Middle Atmosphere Over Logan Utah With Consideration To Model Specification, Troy A. Wynn, Vincent B. Wickwar
Temperature Trends And Episodic Changes Of The Middle Atmosphere Over Logan Utah With Consideration To Model Specification, Troy A. Wynn, Vincent B. Wickwar
Utah Space Grant Consortium
A summary of the linear trends estimated from the USU Rayleigh Lidar (41.74º N, 118ºW) temperature data set. The data set covers a time span from September, 1993 to August, 2003 and an altitude range of 45 to 80 km. The data set includes 584 data points at 45 km to 580 data points at 80 km. Cooling trend profiles are calculated and compared to results from other researchers. Collinearity and bias are also considered as issues that could affect the regression results. Also considered is the possibility that the Mt. Pinatubo eruption has influenced temperature trend estimates. This is …
A Prototype Miniaturized Metabolic Gas Analysis Sensor, Tammy Anderson, Joseph Orr
A Prototype Miniaturized Metabolic Gas Analysis Sensor, Tammy Anderson, Joseph Orr
Utah Space Grant Consortium
Microgravity adversely affects several physiological systems. As space exploration moves to extended flights, understanding which mechanisms microgravity influences may contribute to the health and safety of astronauts aboard. Maximum oxygen consumption (VO2 max) testing is used to monitor changes to cardiorespiratory function. Currently the equipment used to such testing aboard the International Space Station (ISS) is large and requires a significant amount of power. We propose the use of a modified metabolic management system, currently approved for clinical use, for exercise stress testing.
Meta-Data And Interface Synthesis Techniques For Improving Design Productivity In Reconfigurable Computing, Adam Arnesen, Michael Wirthlin
Meta-Data And Interface Synthesis Techniques For Improving Design Productivity In Reconfigurable Computing, Adam Arnesen, Michael Wirthlin
Utah Space Grant Consortium
This paper demonstrates improvements in design productivity for reconfigurable computing which are accomplished through a novel IP reuse strategy. It presents a set of extensions to the IP-XACT XML specification that define the temporal behavior of cores and describes how these extensions are used in the Ogre synthesis system to simplify design complexity and thereby reduce design time. Design productivity improvement is demonstrated by reducing design time for software radio designs from days to hours.
Numerical Investigation Of Internal Wave-Vortex Interactions, Tyler D. Blackhurst, J. C. Vanderhoff
Numerical Investigation Of Internal Wave-Vortex Interactions, Tyler D. Blackhurst, J. C. Vanderhoff
Utah Space Grant Consortium
Internal gravity waves are inherent in the atmosphere and ocean as a result of the stable stratification of these mediums. Internal waves may be generated in many ways, including by flow over topography, convective storms, or turbulent mixing. As they propagate through their medium, internal waves of various scales (tens of meters to tens of kilometers) interact with other fluid flow phenomena found throughout geophysical fluid flows. The interaction of small-scale internal waves with a vortex dipole is of particular interest due to the rotation of the earth resulting in constant vortex generation. The speed and direction with which internal …
Minimizing Post-Surgery Time While Providing Adequate Analgesia, Carl Tams, Noah Syroid, Ken Johnson, Talmage Egan, Dwayne Westenskow
Minimizing Post-Surgery Time While Providing Adequate Analgesia, Carl Tams, Noah Syroid, Ken Johnson, Talmage Egan, Dwayne Westenskow
Utah Space Grant Consortium
Intro-Differences in anesthetic technique when using propofol, remifentanil and fentanyl can result in different emergence and nociception outcomes. After surgery, a brief emergence period combined with an extended duration of analgesia is desired. We propose to use pharmacokinetic (PK)1-4 and pharmacodynamic (PD)5,6 models to find optimized ratios of propofol and remifentanil to shorten emergence time and extend the time until inadequate analgesia is experienced during patient recovery. Modeling has been used to find the optimum effect site concentrations (CeS) for rapid wake up7; however, an optimization technique which also accounts for analgesic effect …
Planar Electrode Quadrupole Ion Traps, Brett J. Hansen, Hannah Quist, Ying Peng, Zhiping Zhang, Junting Wang, Aaron R. Hawkins, Daniel E. Austin
Planar Electrode Quadrupole Ion Traps, Brett J. Hansen, Hannah Quist, Ying Peng, Zhiping Zhang, Junting Wang, Aaron R. Hawkins, Daniel E. Austin
Utah Space Grant Consortium
A simple method has been proposed to study the effects of multipole components on the performance of a radiofrequency quadrupole ion-trap mass analyzer, named the planar Paul trap. The device consists of two parallel ceramic plates, the opposing surfaces of which are lithographically imprinted with 24 metal rings. This suggested method combines the unique properties of this type of trap: the multiple-circular-ring structure, and ease of changing the electric field through differing capacitor configurations on printed circuit boards. Using this approach, the magnitude and sign of different multipole components, including octopole and dodecapole, can easily be adjusted through altering the …
Measurement Of The Complex Index Of Refraction For Uranium Dioxide In The Extreme Ultraviolet, Heidi Dumais, Steve Turley
Measurement Of The Complex Index Of Refraction For Uranium Dioxide In The Extreme Ultraviolet, Heidi Dumais, Steve Turley
Utah Space Grant Consortium
The reflectance and transmittance in the extreme ultraviolet (XUV) for a diode sputtered with a uranium dioxide film (approximately 20 nanometers thick) were measured. The reflectance data for the coated side has been fit to the Parratt model in order to determine the thickness of the film. Fitting the transmission data to a simple model and combining this with the thickness calculation from the reflectance data yielded an estimate for the complex part of the index of refraction for uranium dioxide in the XUV region at every tenth of a nanometer in wavelength. The values will be further refined by …
Providing Stem Experiences, Through Robotic Competitions, For Students And Teachers Grades Six Through Twelve, Stephen Wiliams, Gary Stewardson
Providing Stem Experiences, Through Robotic Competitions, For Students And Teachers Grades Six Through Twelve, Stephen Wiliams, Gary Stewardson
Utah Space Grant Consortium
Science, Technology, Engineering, and Math (STEM) is a current emphasis in education. Machi (2009) points out that "in order for the United States to be globally competitive, innovative, and prepared for new economic and security challenges, the U.S. must have a competitive and innovative educational environment that encourages entrepreneurship and excellence in STEM subjects" (p. 1). The U.S. government depends on science, technology, engineering, and math to maintain its position as the world superpower (Machi, 2009, p. 2) and spends "about $700 million a year on elementary and secondary education in the STEM fields through agencies such as NASA, the …
Lunar Network Tracking Architecture For Lunar Flight, Shane B. Robinson, David Geller
Lunar Network Tracking Architecture For Lunar Flight, Shane B. Robinson, David Geller
Utah Space Grant Consortium
A trade study was conducted with the objective of comparing and contrasting the radiometric navigation performance provided by various architectures of lunar-based navigations assets. Architectures considered consist of a compliment of two beacons located on the lunar surface, and two orbiting beacons that provide range and range-rate measurements to the user. Configurations of these assets include both coplanar and linked constellations of frozen elliptic orbiters and halo orbiters. Each architecture was studied during the lunar-approach, lunar-orbit, and landing phases of a South Pole lunar sortie mission. Navigation filter performance was evaluated on the basis of filter convergence latency, and the …
The Development Of Lox-Based Magnetic Fluid Technology And Its Impact On Small Satellites, Jeffrey C. Boulware, Heng Ban
The Development Of Lox-Based Magnetic Fluid Technology And Its Impact On Small Satellites, Jeffrey C. Boulware, Heng Ban
Utah Space Grant Consortium
A magnetic fluid system could potentially replace mechanically moving parts in a satellite as a means of increasing system reliability and mission lifetime, but rather than a standard ferrofluid with magnetic particles, liquid oxygen (LOX) may be a more adequate working fluid. As a pure paramagnetic cryogen, LOX is already heavily used in space, but still requires basic research before being integrated into system development. The objectives of the research conducted were to verify LOX as a magnetic working fluid through experiment and establish a theoretical model to describe its behavior. This paper presents the theoretical, experimental, and numerical results …
Charge Dynamics In Highly Insulating Space Craft Materials, Alec Sim, J. R. Dennison
Charge Dynamics In Highly Insulating Space Craft Materials, Alec Sim, J. R. Dennison
Utah Space Grant Consortium
We present a preliminary report on the theoretical and experimental study of transport models in highly insulating materials. The report is developed in four sections; first we give background on the nature of the problems in space craft charging, the contributions and connections made by the Utah State material physics group. Second we discuss the density of states to explore the connections between material composition and the microscopic and macroscopic transport equations. Third from Maxwell’s equations we present an overview of the transport equations. Finally we present preliminary results using experimental data on KaptonTM, the transport equations and relevant expressions …