Search results
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Title
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Aspects of Turbulence and Stochastic Processes in Fluid Mechanics
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Author
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Dahlberg, Jerry
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Fluid mechanics
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Description
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Three experimental studies are executed to examine aspects of turbulence and stochastic processes in fluid mechanics. Each experimental study is conducted in a different medium; water, wind and vibrated grain piles. Each study requires upgrades to...
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Title
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FIBER BASED TOOLS FOR POLISHING OPTICAL MATERIALS
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Author
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Shahinian, Hossein
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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In this dissertation, the development of alternative fiber based polishing tools for the finishing of precision freeform and aspherical optics is introduced. Freeform and aspherical optics, i.e. optics with varying radius of curvatures (ROC), are ...
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Title
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GENERATION AND CHARACTERIZATION OF FIREBRANDS FROM SELECTED STRUCTURAL FUELS
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Author
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Hedayati, Faraz
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering
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Description
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Spotting by firebrands is the only mechanism that is capable of initiating fires miles from a fire line. The firebrand phenomenon can be understood in three major sequential phases: production, transportation, and ignition of the recipient fuel. A...
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Title
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Lower limb biomechanics after total knee arthroplasty
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Author
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Wang, Shangcheng
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Date Created
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2018
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Subjects--Topical
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Mechanics, Biomechanics, Kinesiology
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Description
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Knee osteoarthritis is a painful and disabling disease that is prevalent among elder adults. Total knee arthroplasty (TKA) can effectively alleviate knee arthritic pain and improve patient quality of life. Unfortunately, there are evidences showin...
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Title
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Numerical Simulation Based Analysis Of Road Vehicle Aerodynamic Flows
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Author
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Zhang, Chunhui
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Automobiles--Design and construction
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Description
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Computational Fluid Dynamics (CFD) is currently viewed as one of the major tools for investigating aerodynamics of road vehicles. In spite of its well-documented limitations in predicting flows involving complex geometries and flow separations, th...
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Title
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On Accelerating Road Vehicle Aerodynamics
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Author
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Peters, Brett
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Aerospace engineering, Fluid mechanics
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Description
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Road vehicle aerodynamics are primarily focused on developing and modeling performance at steady-state conditions, although this does not fully encompass the entire operating envelope. Considerable vehicle acceleration and deceleration occurs duri...
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Title
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Period-n Bifurcations in Milling
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Author
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Honeycutt, Andrew
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering
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Description
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Period-n bifurcations in milling operations are studied in this dissertation. Period-n bifurcations represent a special type of unstable dynamic behavior because they have a response period that is an integer multiple (n) of the forcing period. Th...
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Title
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Processing and properties of materials with or without adiabatic shear susceptibility
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Author
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Chen, Xiaoxue
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Materials science
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Description
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In this dissertation, two topic areas related to adiabatic shear banding (ASB) phenomenon were studied. Body centered cubic (BCC) metals and alloys may exhibit ASB under uniaxial high strain rate compression if the grain size is refined into the u...
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Title
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QUANTITATIVE FALL RISK ASSESSMENT WITH WEARABLE SENSORS
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Author
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Xu, Zheng
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Biomechanics
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Description
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Falling has become one of the leading causes to both fatal and non-fatal injuries among the elder adults and patients with dysfunctional mobility. The following consequence of a fall will be that the fear of falling can reduce the daily activities...