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 53 for “"Saturn"”.
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Analysis of Transfer Trajectories Utilizing Sequential Saturn-Titan Aerocaptures
… transfer orbit using successive aerocaptures at Saturn and Titan to establish a science orbit around Titan. Titan is an Earth-like moon with a dense atmosphere and organic compounds present. It has many similarities with Earth that are useful to study such as superrotation. Superrotation is when …
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AN ANALYSIS OF LONGITUDE VARIATIONS IN THE EQUATORIAL SPECTRUM OF SATURN
… to search for longitudinal variations in Saturn's equatorial region. A model with reflecting layer at 2.1 bars, an extended haze to 170 mb and an overlying thin stratospheric haze is adopted. Two sets of data are analyzed, a set of ground based observations covering the 6000-6600 A …
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Planetary infrared observations : the occultation of 28 Sagittarii by Saturn and the dynamics of Jupiter's atmosphere
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.
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Saturn, the GM/UAW partnership : the impact of co-management and joint governance on firm and local union performance
Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, 1996.
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Laboratory Measurements of the Millimeter Wavelength Opacity of Phosphine (PH3) and Ammonia (NH3) Under Simulated Conditions for the Cassini-Saturn Encounter
… the atmospheres of the giant planets (Jupiter, Saturn, Uranus and Neptune) are fundamental to understanding the processes which formed these planets and the solar system as a whole. Microwave observations of these planets probe regions in their atmospheres from approximately 0.1 to several bars, …
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First Principles Simulations of Hydrogen and Helium at High Pressures
… high to cross the planetary adiabat of Saturn at pressures around 5 Mbar. Helium is partially miscible throughout a significant portion of the interior of Saturn, and to a lesser extent in Jupiter. These results are directly relevant to models of the interior structure and evolution of …
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Alternative Mission Concepts for the Exploration of Outer Planets Using Small Satellite Swarms
… planets. Planetary systems such as Jupiter and Saturn provide extremely complex exploration environments with numerous targets of interest. Exploring these targets in addition to the main planet requires multiple fly-bys and long mission timelines. In LEO, CubeSats have changed the exploration …
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Theoretical power generation and emissions, experimental validation, and educational application of an internal combustion engine
… prove IC engine theory experimentally. A 2001 GM Saturn 1.9 Liter is the designated IC engine. Thermodynamic, fluid mechanics, and heat transfer calculations were performed based on engine geometry and laboratory environment to obtain theoretical power and emissions values. A test apparatus …
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Job accommodation in the automobile industry : addressing the problem of lateral epicondylitis
… and evaluate worksite accommodation at the Saturn plant for a worker with right lateral epicondylitis. The goal was to make her fully functional in her original team which required addressing the injurious aspects of the task that caused or aggravated her injury.</p> <p>A process of …
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Évaluation de la chromatographie à gaz-trappe d'ions pour l'analyse des hydrocarbures aromatiques polycycliques
… Elmer-Finnigan et un modèle plus récent, le Saturn II de Varian, ont été évalués à cette fin. La première étape d'évaluation consiste à optimiser le détecteur de piège à ions et le chromatographe en phase gazeuse pour l'analyse des HAP en fonction de facteurs spécifiques : (1) …
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Optical development of an ion/electron acceleration facility
… Plasma Spectrometer for the Cassini Mission to Saturn. The optical development involves particle (ion) ray tracing of each element in the facility in order to computationally determine the focusing and mass separating parameters of each of the elements. This computational data is then compared …
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An investigation into the pedestrianisation of city streets : a move towards pedestrain friendly spaces and their economic effects in the City of Cape Town
… perception of predestination by the traders. A SATURN dynamic assignment model was used to simulate the effect of certain road closures to traffic as part of an extension to the pedestrian network. These road are vital to start forming a formalise pedestrian network within the CBD. From the …
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Tidal Dissipation in Extrasolar Planets
… propose a way to observe inertial modes inside Saturn indirectly, by observing waves in its rings that may be excited by inertial modes inside Saturn.
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Microfluidic flow of colloidal particles in nematic liquid crystals
… in microfluidic channels, morphology of Saturn ring defects and director structure in ducts of comparable size to the particle, and many particle migration and advection in large scale systems of differing colloidal densities. We observe elongation of the defect lines around a static …
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Icy Satellite Tectonic, Geodynamic and Mass Wasting Surface Features: Constraints on Interior Processes and Evolution
… found on three icy satellites of Jupiter and Saturn, and the resulting data. Trends in the data provide insight into feature formation, and to both surface and interior processes occurring in icy satellites. Topics include: i) linear features and despinning stresses on Iapetus, ii) long-runout …
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A framework for the architecting of aerospace systems portfolios with commonality
… life support systems, for the historical Saturn launch vehicle portfolio, and for a portfolio of future lunar and Mars surface pressurized mobility systems. The case studies demonstrate the broad applicability of the methodology and provide insights into the impact of commonality on key …
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The Sidereal Visions of Kant, Humboldt, and Einstein: An Introduction to German Cosmological Prose
… scale, and also predicted planets beyond Saturn. In the mid-nineteenth century, Alexander von Humboldt synthesized contemporary knowledge of the natural world in a consciously aesthetic description of the cosmic "landscape," Kosmos (1845-1858). Early in the twentieth century, Albert …
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Some Excursions Into Saturn's Faint Rings
Saturn's E ring: Saturn's tenuous E ring has a double-banded vertical structure, with the density of particles depleted in the equatorial plane of the rings near Enceladus' orbit. We have conducted numerical simulations, supported by orderof-magnitude analytical calculations, to investigate how …
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Exoplanetary Atmospheric Retrievals with Transit Spectroscopy in the JWST Era
… with the first JWST observations of the hot Saturn WASP-39 b, spanning a previously unexplored spectral region. I implement a physically-based Mie scattering calculation to model the spectral contributions of clouds. Using this new aerosol model, I constrain the atmospheric elemental …
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Saturn’s Upper Atmosphere in the Ultraviolet: Temperature and Compositional Trends from Cassini UVIS with Implications for Energy Balance and Dynamics
… mission, providing unprecedented insights into Saturn's atmosphere. By offering simultaneous latitude coverage and seasonal constraints, these observations enable a detailed exploration of composition and temperature variations across the middle and upper atmosphere. This work has produced the …
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