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 3397 for “"bearing"”.
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Clinical investigation of the functional outcome of fixed bearing versus mobile bearing knees
… fixed (UC), and ultra-congruent mobile (UCR) bearing Columbus Total Knee Systems were assessed. The pre- and postoperative function of twenty-four osteoarthritic patients was evaluated against nine control participants whilst carrying out activities of daily living. Spatiotemporal, kinematic, …
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Bearing the mark, bearing the costs: memories of slavery in coastal Tanzania, 1922-2008
The study of memory is not only an inquiry into what happened but is just as much or more so about what is happening. Therefore, a study of the legacy of slavery requires a conscientious look into the lived experiences of members of post-emancipation societies. An investigation into the ways …
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Dynamic Bearing Capacity of Foundations
Made available in DSpace on 2015-05-12T17:06:25Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6004005.PDF: 2679624 bytes, checksum: eaee3741002c5eec6cd3732945f9c6d0 (MD5) Previous issue date: 1960
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The bearing power of soils
Made available in DSpace on 2017-11-30T22:45:55Z (GMT). No. of bitstreams: 2 5972878.pdf: 1648570 bytes, checksum: dc99db7c5c9005fe66647186cc023f66 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1910
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Microstructural degradation of bearing steels
… most fundamental aspects of fatigue damage in bearings steels through critical experiments, in particular whether damage in the form of cracks precedes hard “white-etching matter" formation, which is carbon supersaturated nanoscaled ferrite. Heat treatments have been designed to create four …
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Self-bearing motor design & control
… and control of a new class of self-bearing motors. The primary thesis contributions include the design and experimental demonstration of hysteresis self-bearing motors, novel segmented stator structures, MIMO loop shaping control algorithm for levitation and commutation, hysteresis …
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LUBRICATION STUDY OF AN OSCILLATING BEARING
… operation of an unidirectionally loaded sleeve bearing. The particular journal studied was a hardened steel member oscillating through 30 , at various loads and speeds in a hardened steel bushing. From the results it was concluded that there were possibly four regimes of operation. The …
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Tibiales Malalignment bei Mobile-Bearing-Prothesen
… a simulator investigation was performed. Mobile-bearing- prostheses were implanted in a simulator with 1°-30 valgus- and varus malalignment as well as in neutral position. More extreme malalignment caused unexceptional forces in the simulator. After each 500,000 cycles (ca. 0,5 years of walking) …
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Tapered roller bearing ballscrew support system
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Impact Melt-Bearing Deposits Around Martian Craters
In this work, we investigate impact melt emplacement around Martian craters. We compare our results to melt emplacement processes found on Venus, the Moon, and Mercury. We tentatively find Martian melt emplacement more closely resembles Venusian emplacement, rather than lunar emplacement. This …
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Dynamic Performance of Turbocharger Rotor-Bearing Systems
… measure dynamics of differing turbocharger rotor bearing systems and to develop a coupled rotor-cartridge model for the ball bearing rotor system to corroborate the experimental and analytical results. The ball bearing rotor is supported by an angular contact ball bearing cartridge. In order to …
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Diffusion problems and degradation of bearing overlays
The corrosion and degradation of Pb-Sn bearing overlays Is a bilateral process . During service, the lubricant becomes corrosive due to the breakdown of inhibitors with subsequent oxidation occurring at operating temperatures (120-170[degrees]). ...
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Design of a low cost hydrostatic bearing
… for a new surface self compensating hydrostatic bearing. A lumped resistance model was used to analyze the performance of the bearing and provide guidance on laying out the bearing features. One arrangement of bearing features was cut into a flat sheet of ultra high molecular weight polyethylene …
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Magnetic bearing stages for electron beam lithography
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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A carbon nanotube bearing and Stodola rotor
… The nanotube is also expected to function as the bearing, since individual walls of a MWNT are not strongly bonded and can slide on each other with low friction. While MWNT based rotors have been previously constructed, they have so far been limited to horizontally oriented nanotubes. The rotor …
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