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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 1223 for “"lift"”.
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Gas lift optimization utilising automation gas lift valve
Gas lift is one of the most common forms of artificial lift, particularly for offshore wells. This is due to its relative downhole simplicity, flexibility, reliability, and ability in operating over a wide range of flow rates with the limited well head space. Generally, Gas lift optimization can …
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Experimental Determination of Lift and Lift Distributions for Wings In Formation Flight
… of trailing vortex strengths, total lift, and lift distributions for three-dimensional wings in close proximity flight were developed. With these experiments we model compound aircraft flight either docked tip-to-tip, or flying in formation. There is a distinct lack of experimental …
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Lift on a rotating cylinder
… of this project was primarily to find whether lift on a rotating cylinder in an air stream increases with increase in roughness of cylinder. All previous experiments on the subject (within the knowledge of the writer and subject to the limitation of the references entered at the end of this …
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Recapitalization of Amphibious Operation and Lift
… the LSD-41 and 49 class ships. With respect to lift capacity, performance capability, cost and a risk assessment, the analysis showed the LPD-17 or a LSD(X) approximately 30% larger than the existing classes to be acceptable replacement classes. This analysis also supports further research to …
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Gas lift optimization and flow instability
Gas lift is an artificial lift method used in the oil industry to lift reservoir fluid to the surface, by supplementing the reservoir pressure when it is depleted or insufficient. During oil production, this method can be affected by two-phase (gas-liquid) flow instability within the production …
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Hermitian Maass Lift for General Level
… Ikeda's construction we prove the existence of a lift from the space of elliptic modular forms to the space of hermitian modular forms of level $N$ which can be viewed as a generalization of the classical hermitian Maass lift to arbitrary level.</p>
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Optimization of Airfoils for Maximum Lift
Made available in DSpace on 2014-12-09T18:12:24Z (GMT). No. of bitstreams: 1 6901383.pdf: 2650688 bytes, checksum: b75d3cdd42d95477c6929514ff16dedf (MD5) Previous issue date: 1968
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Optimization of Airfoils for Maximum Lift
Submitted by Carly Hafner (chafner2@illinois.edu) on 2014-07-11T18:41:27Z No. of bitstreams: 1 1968_Liebeck.pdf: 1827459 bytes, checksum: 365f33d127dc218db2a6cd7e9d7014d8 (MD5)
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Characterization of Oscillatory Lift in MFC Airfoils
… (MFC) trailing edge. Correlation of the airfoil lift with the oscillatory input is presented. Modal analysis of the test airfoil and apparatus is used to determine the frequency response function. The effects of static MFC inputs on the FRF are presented and compared to the unactuated airfoil. …
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Effective platform designs for medium lift helicopters
… that the use of platform design for medium lift helicopters can provide opportunities for reduced time to market and faster return to service of helicopters through faster design generation and reduced planning requirements. Through historical review of the S70 helicopter and the derivatives …
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Exploring lift-off dynamics in a jumping robot
… A simple dynamical model reveals how optimal lift-off results from non-resonant transient dynamics.
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KNOWLEDGE-BASED MODELLING FOR OFFSHORE HEAVY LIFT DESIGN
Heavy lift is an important operation in the construction of offshore structures. A large number of interdependent parameters and requirements need to be appraised by experienced engineers to arrive at an optimized heavy lift design. Proper planning and evaluation prior to an actual lift operation …
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Quality and quantity of service in lift groups
… quality of service experienced by passengers in lift systems where multiple cars are sharing same shafts (multi car lift systems) and destination control. These modern lift systems have opportunities and constraints for control algorithms arising by existing and additional quality of service …
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Towards an Automated Weight Lifting Coach: Introducing LIFT
… may not provide the most relevant data about a lift. Barbell path analysis is a well-known visual tool to help diagnose weightlifting technique deficiencies, but requires a camera pointed at the athlete that is integrated with motion-tracking software. This camera set up is not available at most …
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Design and Analysis of a Lift Assist Walker
… is to present the design and analysis of a lift assist walker. This report discusses the design and analysis of a collapsible lift assist walker capable of lifting a patient up to 250 lbs. from seated to standing in under 10 seconds. The designed walker utilized a two stage scissor mechanism …
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LIFT: Integrating stakeholder voices into algorithmic team formation
… affects their learning experience. We propose LIFT, a novel learner-centered workflow where students propose, vote for, and weigh team formation criteria, and the collective results serve as inputs to the team formation algorithm. We conducted an experiment (N=289) comparing LIFT to the usual …
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A parking garage shopping center lift-slab construction
Thesis (M.Arch)--Massachusetts Institute of Technology, Dept. of Architecture, 1963.
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Lift and drag characteristics of rotating oar blades
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Engineering, Adoption, and Ethics of Lift-Assist Exoskeletons
… workers to perform repetitive tasks such as lifting and bending that put significant strain on their bodies resulting in high levels of injury. Exoskeletons are one method of being able to decrease the forces on a worker while still allowing them to move. In this research, I propose a novel …
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