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 7 of 7 for “"Acceleration and velocity"”.
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Experimental Investigation of Acceleration and Velocity Fields in Turbulent Channel Flow
The velocity time derivatives are associated predominantly with small scales in both space and time. Examination of instantaneous and estimates of the conditionally averaged velocity time-derivative fields indicates that the smaller-scale vortices leave a convective imprint upon the time …
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Vibration acceptability in wood floor systems
… on laboratory-built floors. Floors were built and tested to determine the plywood contribution to increasing the bending stiffness, number of joists effective in resisting applied load, and calculation of fundamental frequency. The second section summarizes research conducted on in-situ floors. …
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Investigating the effectiveness of posture coaching and feedback during patient handling activities in a student nursing population
The daily routine of nurses and other caregivers is physically demanding and in turn, the profession is at a high risk of developing musculoskeletal injuries and/or disorders (MSDs). This thesis has two sections. The purpose of the first section (the pilot study) was to perform a preliminary …
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How Do Quasars Impact Their Host Galaxies? From the Studies of Quasar Outflows in Absorption and Emission
"Quasar-mode feedback" occurs when momentum and energy from the environment of accreting supermassive black hole couple to the host galaxy. One mechanism for such a coupling is by high-velocity (up to ~0.2c) quasar-driven ionized outflows, appearing as blue-shifted absorption and emission lines in …
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LEU-HEU Mixed Core Conversion Thermal-hydraulic Analysis and Coolant System Upgrade Assessment for the MIT Research Reactor
… power increases from 6.0 MW to 7.0 MW thermal, and primary coolant flow rate increases from 2000 gpm to 2400 gpm. Detailed analyses were completed for initial LEU core with 22 fuel elements, and demonstrated both neutronic and thermal hydraulic safety requirements are met throughout equilibrium …
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Control of Gantry and Tower Cranes
… of this work is to design robust, fast, and practical controllers for gantry and tower cranes. The controllers are designed to transfer the load from point to point as fast as possible and, at the same time, the load swing is kept small during the transfer process and completely vanishes …
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Dynamic response of highway bridges under a moving truck and development of a rational serviceability requirement
Through the development and usage of high-strength materials, the design of more flexible bridges is unavoidable. It is assumed that limiting a bridge static deflection would control the excessive vibration caused by more flexible design. However, results of prior studies indicate that deflection …