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 3501 for “"axis"”.
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Habitat Interference by Exotic Axis Deer (Axis axis) on Native White-tailed Deer (Odocoileus virginianus) in Texas
… white-tailed deer (Odocoileus virgimanus). Axis deer (Axis axis), the most common exotic ungulate in the state, are larger and more gregarious than white-tailed deer, and there is overlap in resources used by both species. In this study, I tested if the presence of axis deer affected habitat …
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Hub and Axis
The project is for the central building of a community center used by the communities of Blacksburg and Christiansburg. The building is a space configured as a hub that uses axes to determine entering, exiting and vertical movement. The hub configuration of the building is in concentric rings …
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Termination of an axis
“Architecture does not exist, only the spirit of architecture exists. What has presence is a work of architecture which should be made in a way that is worthy of an offering to architecture.” Louis Kahn.
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Vertical Axis Hybrid Wind Turbine
… into the potential and practicality of vertical axis hybrid wind turbines (VAHWTs) for sustainable electricity generation and investigate the self-starting issue of VAWT. The development of sustainable energy sources has become increasingly critical in recent years because of growing worries …
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Vertical axis wind turbine acoustics
… changing wind conditions, small-scale vertical axis wind turbines (VAWTs) have been proposed as an efficient solution for deployment in built up areas, where the wind is more gusty in nature. If VAWTs are erected in built up areas they will be inherently close to people; consequently, public …
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Extension of the Axis Mundi
A work develops through methodical inquiry based on the reciprocity inherent in the construction of an object and its evaluation. A physical object informs an initial concept and acts as the fundamental catalyst for subsequent findings. Ordered elements result in the description of a vertical …
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Dual-axis tilting quadrotor aircraft: Dynamic modelling and control of dual-axis tilting quadrotor aircraft
This dissertation aims to apply non-zero attitude and position setpoint tracking to a quadrotor aircraft, achieved by solving the problem of a quadrotor’s inherent underactuation. The introduction of extra actuation aims to mechanically accommodate for stable tracking of non-zero state …
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Automatic 5-axis NC toolpath generation
… generation has remained an elusive goal for 5-axis NC machining. This thesis describes the theoretical and practical issues associated with generating collision free five-axis roughing and finishing toolpaths automatically from the CAD model of the part. Instead of decomposing the shape into …
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Five axis machining of stamping dies
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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A three axis CNC router design
A preliminary design of a low-cost, three-axis, computer numerically controlled (CNC) router was completed with the goal of bringing the advantages of numerically controlled machine tools to the woodshop. To reduce cost, a novel single rail design was employed. The number of custom parts was kept …
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Nonrigid single-axis space integrator dynamics
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1964
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Design of Two-axis Multivariable Control Systems
… is concerned with the engineering design of two-axis multivariable systems. The restriction to two axes is made in order to exploit simplifications which are possible for this class of system. The resulting design method is then more convenient and precise than methods capable of handling …
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Design of a two-axis linear motor
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Design of a two axis precision gimbal
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Spin-axis alignment of Koronis family asteroids
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.
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A multi-axis approach to complexity management
A high degree of complexity exists in the product, processes, organization and supply chain at HIGHVOLT Prüftechnik GmbH, subsidiary of Maschinenfabrik Reinhausen. The current state complexity results from unique market dynamics, the highly technical nature of the solutions offered and customer …
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Axis + elements: a library for Lexington, Virginia
A design is proposed for a library located on a comer site in a downtown area of some historical importance. The character of the surrounding buildings demanded that the library acknowledge its context. This acknowledgement occurred through the use of an axial organization from the site and a …
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Development of dual-axis solar tracking using arduino
Renewable energy sections are fast-spreading, as they can be considered new growth areas for many countries. Contains many economic and environmental possibilities. As solar energy is considered to have a major and effective role for the acquisition of energy, in the face of the identification of …
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Cutter-workpiece engagement identification in multi-axis milling
… this methodology, cutter surfaces performing 5-axis tool motions are decomposed into a set of characteristic circles. For obtaining these circles a concept of two-parameter-family of spheres is introduced. Considering relationships among the circles the swept envelopes are defined analytically. …
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