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 37 for “"uninhabited"”.
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Turbochargers to small turbojet engines for uninhabited aerial vehicles
… from turbocharger rotorcomponents for possible Uninhabited Aerial Vehicle applications. The first program involved the performance mapping of the Garrett T2 turbocharger centrifugal compressor. The second program involved the bench testing of a small turbojet engine, the Sophia J450, at 115000 …
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Minimum Energy Control Strategy for an Uninhabited Airship with a Moving Gondola
An airship with a moving gondola is investigated with the goal of achieving a large pitch angle and of minimizing the total energy consumption required to goal position. The airship in this study is equipped with different actuation tools such as a moving gondola and a vectoring thrust, which can …
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Mass Properties Calculation and Fuel Analysis in the Conceptual Design of Uninhabited Air Vehicles
The determination of an aircraft's mass properties is critical during its conceptual design phase. Obtaining reliable mass property information early in the design of an aircraft can prevent design mistakes that can be extremely costly further along in the development process. In this thesis, …
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3D Geologic Mapping and Characterization Using Digital Outcrop Models Generated from Uninhabited Aerial Vehicles and Structure-from-Motion Photogrammetry
… scales. Recently, technological advances in uninhabited/unmanned aerial vehicles (UAVs) have prompted wide use in various geoscience disciplines to supplement field data with quantifiable digital information. However, application of UAVs to geologic mapping has been limited, due to unique …
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Design methodologies and prototyping of a starter-geenrator for an unmanned aerial vehicle (UAV) for civil applications
… the recent years the development and use of uninhabited aircraft, in the form of UAVs (Unmanned Aerial Vehicle) has progressed quickly. An uninhabited aircraft is defined as the general term for UAV (Uninhabited Aerial Vehicle, Unmanned Aerial Vehicle), ROA (Remotely Operated Aircraft), and …
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Robust constrained model predictive control
(cont.) multiple Uninhabited Aerial Vehicles (UAVs) demonstrate that the new DMPC algorithm offers significant computational improvement compared to its centralized counterpart. The controllers developed in this thesis are demonstrated throughout in simulated examples related to vehicle control. …
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Declarative and Procedural Current Job Knowledge as Predictors of Performance in Emerging Military Jobs
… (n = 256) and three jobs required to operate Uninhabited Aerospace Vehicles. Job analysts (n = 35) provided job similarity ratings by comparing three emerging jobs with the current job sample. Military participants (n = 26) performed as Vehicle Operators, Payload Operators, and Mission …
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The geography of power resources in New Zealand
… in areas which only a decade ago were remote and uninhabited, lakes are being drained and swamps reclaimed in the search for coal, and a man-made thermal area has been created, as spectacular as any natural one. Plans are made and changed, and before one large power development is completed …
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The Effects of Elasticity in the Foundation on the Flutter of a Metallic High Aspect Ratio Wing
… the one found in a High- Altitude Long-Endurance Uninhabited Aerial Surveillance Vehicle (HALE USAV).</p> <p>The problem is studied using a simplified aerodynamic loading based on thin-airfoil theory, which is then combined with a Lagrangian formulation to solve the system as stationary. The wing …
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Hermeneutics of the Crossroads
… is a valid intellectual model for innovative and uninhabited modes of understanding. The hermeneutics of the crossroads is an imaginative approach that keeps us open to the transformative power of literature transpiring when we bring to the text our working scholarly knowledge, but also allow …
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Qualitative knowledge construction for engineering systems : extending the design structure matrix methodology in scope and procedure
… engineering system, a US Air Force miniature uninhabited air vehicle (MAV) product development system.
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Freemasons in government in the United States, 1776-1840.
… of, by, and for, the people from an almost uninhabited wilderness. In a spirit of independence, the American colonists overthrew the rule of the "Mother Country" and established the new American nation. Many of the leaders in the struggle for independence were also leaders in the Masonic …
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Modeling and Test of the Efficiency of Electronic Speed Controllers for Brushless DC Motors
<p>Small electric uninhabited aerial vehicles (UAV) represent a rapidly expanding market requiring optimization in both efficiency and weight; efficiency is critical during cruise or loiter where the vehicle operates at part power for up to 99% of the mission time. Of the four components (battery, …
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Retrofit + shrink wrap Dubai : an urban recovery plan
… of the city remain incomplete and largely uninhabited, creating vast urban blights. Dubai risks damage to both its image and its ability to function. The city's decline, however, presents a unique opportunity for immediate and sweeping intervention against urban decay. My thesis proposes a …
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Naturalistic Study Examining the Data/Frame Model of Sensemaking by Assessing Experts in Complex, Time-Pressured Aviation Domains
… event-based interview data collected from uninhabited aerial system (UAS) pilots and high performance military aircraft pilots (F-16 and UH-60 Black Hawk) in order to assess the methods with which these experts handle large amounts of critical information in their operations. This effort …
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Landscape’s Constitutive Agency in Macpherson's Ossianic Collections: The Liminal Sublime in Ossian's Landscape
… contexts, it will demonstrate that the mostly uninhabited Ossianic landscape settings are typically of ambiguous character, creating a liminal space between the mundane world and the otherworld. Unlike conventional literary studies which predominantly deal with the relationship between text, …
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Islands and Rocks: moving towards certainty on the interpretation of Article 121 of the Law of the Sea Convention?
… space to nations claiming sovereignty over tiny uninhabited islands speckled throughout the oceans, severely limiting the space that remains for the "common heritage of mankind". In addition, the ambiguous wording of Article 121 has resulted in various territorial disputes between nations in …
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A comprehensive literature review of SAR polarimetric calibration for Waseda SAR Sensor
… The calibrated data set collected from NASA’s Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) over California is analyzed. The data is contaminated with an unrealistically high amount of coupling (-5 dB) to show the coupling effect on the data and then remove the amount of coupling …
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INDIGENOUS CONTESTATIONS OF SHIFTING PROPERTY REGIMES: LAND CONFLICTS AND THE NGOBE IN BOCAS DEL TORO, PANAMA
… property as opposed to `natural’, `unused’, `uninhabited’ land between the local Ngobe and immigrant Western expatriates. At the same time, the study demonstrates how the social agency of individual actors produces an individualized micro-politico-legal ecology that shapes the force-field in …
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